WO2023183998A1 - Equipamento para polimerização automática de polímeros de policondensação e outros sistemas de poliuretano e método - Google Patents
Equipamento para polimerização automática de polímeros de policondensação e outros sistemas de poliuretano e método Download PDFInfo
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- WO2023183998A1 WO2023183998A1 PCT/BR2022/050459 BR2022050459W WO2023183998A1 WO 2023183998 A1 WO2023183998 A1 WO 2023183998A1 BR 2022050459 W BR2022050459 W BR 2022050459W WO 2023183998 A1 WO2023183998 A1 WO 2023183998A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/004—Multifunctional apparatus for automatic manufacturing of various chemical products
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0013—Controlling the temperature of the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/002—Avoiding undesirable reactions or side-effects, e.g. avoiding explosions, or improving the yield by suppressing side-reactions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0006—Controlling or regulating processes
- B01J19/0033—Optimalisation processes, i.e. processes with adaptive control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/06—Solidifying liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/02—Feed or outlet devices; Feed or outlet control devices for feeding measured, i.e. prescribed quantities of reagents
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
- B01J2219/00081—Tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00076—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements inside the reactor
- B01J2219/00085—Plates; Jackets; Cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00105—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling
- B01J2219/0011—Controlling the temperature by indirect heating or cooling employing heat exchange fluids part or all of the reactants being heated or cooled outside the reactor while recycling involving reactant liquids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00162—Controlling or regulating processes controlling the pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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- B01J2219/00164—Controlling or regulating processes controlling the flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00184—Controlling or regulating processes controlling the weight of reactants in the reactor vessel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00193—Sensing a parameter
- B01J2219/00195—Sensing a parameter of the reaction system
- B01J2219/002—Sensing a parameter of the reaction system inside the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00191—Control algorithm
- B01J2219/00222—Control algorithm taking actions
- B01J2219/00227—Control algorithm taking actions modifying the operating conditions
- B01J2219/00229—Control algorithm taking actions modifying the operating conditions of the reaction system
- B01J2219/00234—Control algorithm taking actions modifying the operating conditions of the reaction system inside the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00245—Avoiding undesirable reactions or side-effects
- B01J2219/00247—Fouling of the reactor or the process equipment
Definitions
- the present invention refers to an innovative autonomous equipment for the polymerization of polycondensation polymers, the purpose of which is to present equipment capable of reproducing different polymer recipes, which are pre-programmed, and said reproduction can be carried out continuously or semi-continuous, in which the main objective of said equipment is to provide a compact and adaptable configuration for in situ production, that is, the polymers are produced in the same place where they will be consumed, replacing traditional configurations that occupy too large an area in plants specific producers.
- the present invention also refers to a method of operating said autonomous equipment for polymerizing polycondensation polymers, which aims to present a methodology for controlling all variables of the recipe to be produced, as well as having two operating interfaces, one for the operator responsible for executing the selected recipe, and another interface dedicated to the person responsible for creating recipes and managing them.
- polymerization to form Polyurethanes constitute an exception among other polymerization processes, since they are exothermic reactions between isocyanates and hydroxylated and/or amino compounds, which tend to generate large amounts of heat and, in many cases, thermal control is the main point for out-of-control reactions are avoided.
- Out-of-control reactions can generate extremely toxic and undesirable by-products, can cause flammability and explosion problems (in cases of solvent-based polymers), as well as quality problems in the polymers, with emphasis on altered color and polydispersity, among others, and, therefore, , thermal control tends to be one of the main limits for addition and polymerization reaction times in industrial processes.
- the polymerization of polyurethane intended for use as polycondensed polymers involves medium-large plants, since such plants need to comprise one or more reactors and a whole set of peripherals such as heating systems, towers cooling and chiller systems, power plants, heat exchangers, inerting and tanking systems for storing intermediates, since the manufacture of such polycondensation polymers occurs in pre-defined sequential stages, such production plants require large areas for more efficient control resulting reactions and high demand for operational labor, since the entire range of products manufactured are carried out by operations assisted by production operators who conduct process recipes per product manufactured in these multipurpose reactors.
- the apparatus comprises an auxiliary preparation tank group and at least one polymerization boiler; the group of auxiliary preparation tanks comprises a plurality of auxiliary preparation tanks, the auxiliary preparation tanks are communicated with the at least one polymerization boiler via feed pipes, and each feed pipe is provided with a flow measuring device; and each polymerization boiler is provided with automatic cleaning devices to clean the inner wall of the corresponding polymerization boiler.
- the object of the invention is to provide the apparatus and method for the continuous and closed production of emulsion process paste resin.
- the apparatus and method can realize automatic cleaning of the boiler and improve the ways of preparation and addition of assistants, and can solve the problems of the traditional paste resin polymerization emulsion process in safety, environmental protection, occupational health, automatic grade, consumption, cost and labor intensity.
- patent document CA2661231 Another document that aims to solve the technical problems described is patent document CA2661231, in whose summary a process is presented for producing polymer and, more particularly, polycondensation polymer, using a closed-circuit recirculation reactor.
- the reactor includes one or more mixers for mixing the feed stock with the polymerized material recirculating in the reactor.
- a planetary roller extruder (PRE) can be used for this purpose.
- a combination of one or more static mixers and one or more PREs can be used.
- Document CA2661231 attempts to minimize problems associated with the technical field of recirculation equipment containing a reactor and mixers. Such equipment, however, does not present a solution that aims to create pre-determined recipes for polycondensation polymers and that can adapt to various types of production demands.
- Another objective of the present invention is to present equipment that makes it possible to control quantities, temperatures, working pressure, agitation/mixing and reaction times without the action of an operator.
- Another objective of the present invention is the inclusion of optimized thermal control systems, when compared to conventional systems of a polyurethane production plant, with an area-heat exchange capacity ratio different from those obtained in large industrial equipment for a polycondensation polymer factory in larger volumes, thus achieving much more efficient process standards, with perfect control of exothermic reactions and less possibility of uncontrolled reactions.
- the present invention comprises equipment for automatic polymerization of polycondensation polymers and other polyurethane systems, provided with at least one reaction chamber, adjusted to carry out the chemical reaction between species in such a way as to produce polymers in an automated way directly at the point of use.
- the equipment for automatic polymerization can contain up to five chambers, depending on the demand for polymer production, enabling condensation polymerization, allowing block copolymers to be obtained in specific sequences.
- the equipment for automatic polymerization can present various types of arrangement for them, whether in linear sequences, parallel and/or alternating processes, in a flexible manner and depending on the characteristics of the polymer. to be obtained.
- the equipment presents reactions with a controlled temperature between 50 to 150 °C for polyurethanes, and from 130 to 240 °C for intermediate polymers such as polyols containing hydroxyls, these ranges being their optimum reaction points in each case, since that these temperature ranges provide better control of reactivity and shorter cycle times.
- the equipment makes use of an external loop heat exchanger, dramatically increasing the heat exchange rate conventional industrial reactors, which may function for cooling, but not limited to cooling, and may alternatively be used for heating to the desired reaction temperatures, for effective temperature control and neutralization of heat generation.
- the equipment also features a vessel control system sized for work in negative and positive pressure, allowing work at reaction temperatures above the boiling points of typical solvents used in these polyurethanes, for gains in reaction time as well as reduction of solvent losses through evaporation.
- the equipment also features loading of raw materials and unloading of finished product with fully autonomous filtration, using automatic valves for product transfer, intelligent programmed software that controls the addition in stages designed according to the need specific to each product to be produced.
- the system can, alternatively, be equipped with inventory tanks. These inventory tanks can be previously filled with all inputs, preparing the equipment for long periods of production, making its use more user-friendly and less dependent on the actions of an industrial operator.
- the equipment also presents a working system with redundancy in controlling the quantities added, based on service tanks, arranged on the reaction chamber system, which carry out prior weighing of the inputs, immediately before each cycle, facilitating the control of the addition of inputs.
- the equipment for automatic polymerization of polycondensation polymers and other polyurethane systems has a process for autonomous polymerization of polycondensation polymers that aims to direct the polymerization in the use of the equipment.
- figure 1 shows a schematic view to illustrate the equipment for automatic polymerization of polymers polycondensation and other polyurethane systems in their configuration with a reaction chamber and five input tanks, detailing the positioning of the inlet and outlet valves, water entry points, nitrogen entry points and layout of the heat exchanger;
- figure 2 shows a schematic view to illustrate equipment for automatic polymerization of polycondensation polymers and other polyurethane systems in its configuration with a reaction chamber and five input tanks, in a constructive variant comprising inventory tanks connected to the input tanks. input, detailing the positioning of the inlet and outlet valves, water entry points, nitrogen entry points and heat exchanger layout.
- the present invention refers to an EQUIPMENT FOR AUTOMATIC POLYMERIZATION OF POLYCONDENSATION POLYMERS AND OTHER POLYURETHANE SYSTEMS, which features equipment (E) equipped with at least one chamber reaction system (CR), capable of mixing inputs in a controlled manner in terms of quantities, temperatures, agitation/mixing and reaction times, resulting in polymers for different purposes, including polycondensation polymers and polyurethanes automatically.
- the equipment (E) can be equipped with up to five reaction chambers (CR), enabling automatic polymerization of polymers by condensation, allowing block copolymers to be obtained in specific sequences.
- the configuration with more than one reaction chamber (CR) allows different arrangements of the same, these being in linear sequences, parallel and/or alternating processes, providing the equipment (E) with flexibility, being able to adjust it to the characteristics of the polymer to be obtained.
- the reaction chamber (CR) is equipped with paddles for mechanical mixing of the inputs inside.
- the reaction chambers (CR) function as reactors and have a jacket, agitation system, inlet valves (VE) at the top and at least one outlet valve (VS) at the bottom.
- Such reaction chambers (CR) are arranged on a platform and have a preferably cylindrical shape, made of stainless steel, preferably SS-316L.
- the reaction chamber (CR) also comprises a water inlet (EA), preferably positioned in its lower portion, that is, at its bottom, controlled by a solenoid valve, as well as an inlet positioned in its lower portion. upper, for controlled nitrogen entry.
- the nitrogen inlet (EN) is also controlled using a solenoid valve.
- both the water inlet solenoid valve (EA), the nitrogen inlet valve (EN) and the inlet (VE) and outlet (VS) valves are controlled by the intelligent interface (II) .
- reaction chamber (CR) inputs are introduced through its upper portion, through the input valves (VE) at the top, controlled by the intelligent interface (II), leaving through the output valves (VS), in the lower portion of the reaction chamber (CR), being unloaded into final packaging or going to the next reaction chamber (CR), if the reaction in question is a sequential reaction.
- the inputs are stored in input tanks (T), with each equipment having at least two input tanks (T) and up to twenty tanks (T), in which all the raw materials necessary for the reactions in the reaction chambers (CR) are arranged in the input tanks (T).
- the equipment (E) in addition to the input tanks (T), the equipment (E) can be equipped with inventory tanks (TI), which enable the storage of inputs for long periods of production.
- the input tanks (T), as well as the inventory tanks (TI) comprise quantity detection systems that communicate with the intelligent recipe programming interface (II), alerting audibly and visually regarding the need to replenish inputs, and, interrupting the beginning of production cycles when there is no input in sufficient quantity to carry out the selected production of any batch, until replenishment is carried out, thus avoiding the production of batches with quality deviations.
- II intelligent recipe programming interface
- the equipment (E) is also equipped with a multichannel system that allows the memory supply of formulations containing between two and twenty different raw materials, functioning as a formulation database.
- the purpose of the multichannel system is to condition the equipment (E) to work based on the selection of a pre-established formulation.
- each reaction chamber (CR) is equipped with a weight control system (SCP), which aims to instantly control the weight and proportions of raw material in reaction.
- SCP weight control systems
- mass flow meters or load cells (scales) can be used.
- the weight control system works redundantly, that is, it compares the weight of the raw materials added in the production stage with the final weights obtained from the final polymer or pre-polymer, checking whether these are compatible based on a variation tolerance considered acceptable.
- the weight control system (SCP) aims to improve the control and quality of formulated polymers, as well as speed up the process of adding inputs, through redundancy in the control of added quantities.
- the equipment (E) comprises in its weight control system (SCP), tanks called service tanks, arranged on the reaction chamber system (CR), being responsible for a prior weighing of the inputs, before the beginning of each cycle.
- the reaction chambers (CR) are constructed and designed for reactions whose optimum temperature is in the range between 50 and 120 °C for polyurethanes and 130 to 240 °C for polyols, with a reaction time between ten minutes and three hours in each step for polyurethanes and between 10 and 24 hours for polyols, depending on the reactivity of the reactant species.
- the reaction chamber (CR) will be equipped with a mechanical agitator shaft with a speed between twenty and sixty RPM.
- the equipment (E) is also equipped with a cleaning system using a scraper anchor with Teflon terminations (PTFE), which can take on the appearance of multiple blades (sectioned) or helical, which acts both on the cylindrical walls of the vessel and on the torispherical or conical bottom, carrying out cleaning by mechanically scraping the product towards the outlet valve (VS) with the function of cleaning and/or scraping the wall of the reaction chamber (CR) at each step and avoiding the use of solvents or chemical cleaning agents between continuous cycles.
- PTFE Teflon terminations
- the mechanical removal of raw materials or inputs optimizes equipment performance (E) and reduces the need for cleaning or purging systems with gas or solvent.
- the equipment (E) is equipped with an intelligent interface (II) to control the operating parameters of the system as a whole.
- This intelligent interface (II) is carried out through a programmable logic controller system - PLC, equipped with a recipe programming screen for creating processes and recipes, which is controlled by: order of addition, temperatures, rotations and time between each step to allow the reaction between inputs, temperature control including heating and cooling and use/execution screen, where pre-established recipes and processes are executed by the user.
- a recipe programming screen for creating processes and recipes, which is controlled by: order of addition, temperatures, rotations and time between each step to allow the reaction between inputs, temperature control including heating and cooling and use/execution screen, where pre-established recipes and processes are executed by the user.
- equipment maintenance E
- the equipment (E) is also equipped with an alarm system for rapid identification of anomalies in the system such as lack of raw material, excess raw material, weighing error, temperature peak, agitator failure, high pressure in the filtration system, valve opening failure, among others.
- the equipment (E) is also equipped with a thermal conditioning system between stages, which is carried out directly in the reaction chambers (CR) or by passing heat exchangers (TC) positioned before, between or after the chambers reaction rate (CR), also controlled by the intelligent interface (II).
- the equipment (E) to avoid contamination, features in its cleaning system, an automatic process for distilling solvents and also a discharge line independent of the finished product discharge line, in order to dispose of dirty solvents in a separate tank.
- the equipment (E) also comprises a heat exchanger system (TC), responsible for optimizing the thermal control of exothermic reactions, thus minimizing the possibility of uncontrolled reactions.
- TC heat exchanger system
- the best thermal exchange capacity of the equipment (E) is obtained by the volume/area ratio of the reaction chamber wall (CR) and by the use of an external thermal exchange accessory, that is, the heat exchanger (TC) that works in the form of a loop with the reaction chamber (CR), where the polymerizing material is directly kept in circulation during the critical stages of addition of exothermic ingredients, significantly increasing the typical heat capacity/product volume ratio.
- the heat exchanger system (TC) is equipped with an outlet below the reaction chamber (CR) with the option of aligning, via pump pumping (B), the material in a loop with a heat exchanger ( TC) positioned next to, below, or, preferably, above the reaction chamber (CR), returning the polymer to the reaction chamber (CR) from above, with the aim of using a circulation rate of 0.5 to 15 times the tank volume per minute and have an exchange area (in cm 2 ) that ranges from 0.5 to 15 times the exchange area of the internal walls of the reaction chamber (CR).
- cooling fluid will generally be water or glycol, and cooling fluid at room temperature or chiller-cooled can be used when the exchange needs are increased due to the control challenge imposed by the release of heat from the product.
- the heating option it is possible to use the same heat exchanger (TC) and change the temperature of the thermal fluid, however it is preferable to apply two independent heat exchangers (TC): one for cooling and the other for heating,
- the second heat exchanger (TC) alternatively, works with heated fluid or steam to heat the material, which circulates to the desired temperature defined by the product recipe.
- the use of two heat exchangers (TC) is preferred, as the exchange of fluid from cold to hot or vice versa is slower and generates waste of energy.
- Control when the second accessory is connected, would be done using automatic 3-way valves (V3) that define which line the product will circulate in, heating or cooling, also controlled by the intelligent interface (II).
- the equipment also features a control system and vessel sized for work in negative and positive pressure, allowing work at reaction temperatures above the boiling points of typical solvents used in these polyurethanes, for gains in reaction time as well as reduction of solvent losses through evaporation.
- this control system in reactions whose pressure is in a range between 1 and 3 bars of pressure, it is possible to increase, for example, the boiling point of a polycondensation polymer containing ethyl acetate from around 77 °C to 1 10 °C , which represents a gain in reactivity, that is, shorter reaction times. Gains may vary case-by-case, according to the polymer to be produced, but we can consider gains between 1 and 5 times in shorter reaction times compared to traditional ones for products containing solvents.
- control system is carried out by the addition of an automatic system with relief valves located in the tank vent, and the operation is safe due to the construction characteristics specified for the reaction chambers (CR) and their peripherals.
- Negative pressure is achieved by use of a vacuum pump and, although it is not applicable to polymers dispersed in solvent, its use is useful for accelerating vacuum drying after cleaning cycles, removing dissolved gases in reactions of solvent-free products, as well as removal of moisture and oxygen from the unfilled fraction of the system (head-space).
- the reaction chambers (CR) have the intrinsic characteristic of being designed and built to resist established pressure conditions, with a minimum PMTA of 3 bars, respecting specific construction standards, such as ASME, and this sheet thickness specification is generated using the PMTA informed by the manufacturer.
- the aforementioned reaction chambers (CR) are equipped with valves and relief-pressure and vacuum control which, in turn, have a direct connection with the programmable logic controller - PLC, of the intelligent interface (II), controlling the opening and work under the established conditions, with the condensation system, formed by the reaction chamber condenser (CR) can be applied to help recover solvent losses that may evaporate, reducing losses and possible atmospheric emissions (i.e., keeping the system closed).
- the present invention also presents a “METHOD FOR AUTOMATIC POLYMERIZATION OF POLYCONDENSATION POLYMERS AND OTHER POLYURETHANE SYSTEMS”, and such method (100) presents two segments of action, being an interface for use by a user with editing privileges (IUPE) and an interface for use by an operator (IUO).
- IUPE editing privileges
- UOU operator
- the equipment (E) is equipped with a system for remote communication via the internet, which allows remote access to it.
- the user with editing privileges UE
- UOE user with editing privileges
- the equipment (E) has a control display in the same location as its installation, and it is through this display that the interface for use by an operator (IUO) is established.
- the operating user (UO) cannot access the equipment (E) remotely, requiring his presence at the equipment installation location (E).
- the user with editing privileges can define a recipe to be executed by the equipment (E) by defining the following parameters:
- pre-defined lists are offered so that the user with editing privileges (UPE) can select the parameters that best suit the execution of the recipe.
- the operator user (UO), through the operator interface (IUO), has the unique possibility of executing and monitoring the recipes that were created and saved on the equipment (E) through a user with access privileges. edition (UPE). However, warning signs regarding the execution of a recipe are visible on the equipment operation screen (E).
- the power sources are connected to the flexible connection components present at the top of at least one reaction chamber (CR).
- all variables of interest to the recipe to be carried out by the equipment (E) are included, such as addition steps, working and reaction temperature adjustments, inert gas injection, rotation, pressure and reaction time.
- the bottom valve opens and, with the aid of a discharge pump, the product is discharged through a filtration system directly into a storage tank of finished product, which can be a specific tank or even packaging such as 200L drums and/or 1000L IBC's.
- the storage tanks may contain sensors that inform when they are full and unable to receive new products, to interrupt the start of new cycles, as well as generating a production demand, once they are at a level that supports more material.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Polyurethanes Or Polyureas (AREA)
- Other Resins Obtained By Reactions Not Involving Carbon-To-Carbon Unsaturated Bonds (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
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Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US18/853,164 US20250222423A1 (en) | 2022-04-01 | 2022-11-23 | Equipment for automatic polymerisation of polycondensation polymers and other polyurethane systems and method |
| EP22933902.3A EP4506391A4 (en) | 2022-04-01 | 2022-11-23 | DEVICE FOR AUTOMATIC POLYMERIZATION OF POLYCONDENSATION POLYMERS AND OTHER POLYURETHANE SYSTEMS AND PROCESSES |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BR102022006404A BR102022006404A2 (pt) | 2022-04-01 | 2022-04-01 | Equipamento para polimerização automática de polímeros de policondensação e outros sistemas de poliuretano e método |
| BR1020220064040 | 2022-04-01 | ||
| BR1020220211124 | 2022-10-18 | ||
| BR102022021112-4A BR102022021112A2 (pt) | 2022-10-18 | 2022-10-18 | Equipamento para polimerização automática de polímeros de policondensação e outros sistemas de poliuretano e método |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023183998A1 true WO2023183998A1 (pt) | 2023-10-05 |
Family
ID=88198383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/BR2022/050459 Ceased WO2023183998A1 (pt) | 2022-04-01 | 2022-11-23 | Equipamento para polimerização automática de polímeros de policondensação e outros sistemas de poliuretano e método |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20250222423A1 (pt) |
| EP (1) | EP4506391A4 (pt) |
| WO (1) | WO2023183998A1 (pt) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2661231A1 (en) | 2006-08-30 | 2008-03-06 | Intertape Polymer Corp. | Recirculation loop reactor bulk polymerization process |
| CN108236910A (zh) * | 2018-01-31 | 2018-07-03 | 浙江大学 | 一种搅拌装置和一种卧式双轴自清洁反应器 |
| CN109173965A (zh) | 2018-10-09 | 2019-01-11 | 天津渤化工程有限公司 | 乳液法糊树脂装置密闭连续生产设备及方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA3135660A1 (en) * | 2019-04-01 | 2020-10-08 | Basf Se | Continuous production of polyurethane prepolymers |
-
2022
- 2022-11-23 US US18/853,164 patent/US20250222423A1/en active Pending
- 2022-11-23 EP EP22933902.3A patent/EP4506391A4/en active Pending
- 2022-11-23 WO PCT/BR2022/050459 patent/WO2023183998A1/pt not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2661231A1 (en) | 2006-08-30 | 2008-03-06 | Intertape Polymer Corp. | Recirculation loop reactor bulk polymerization process |
| CN108236910A (zh) * | 2018-01-31 | 2018-07-03 | 浙江大学 | 一种搅拌装置和一种卧式双轴自清洁反应器 |
| CN109173965A (zh) | 2018-10-09 | 2019-01-11 | 天津渤化工程有限公司 | 乳液法糊树脂装置密闭连续生产设备及方法 |
Non-Patent Citations (5)
| Title |
|---|
| BRANDL FLORIAN, THÜNEMANN ANDREAS F., BEUERMANN SABINE: "Poly(meth)acrylate-PVDF core–shell particles from emulsion polymerization: preferential formation of the PVDF β crystal phase", POLYMER CHEMISTRY, ROYAL SOCIETY OF CHEMISTRY, CAMBRIDGE, vol. 9, no. 44, 13 November 2018 (2018-11-13), Cambridge , pages 5359 - 5369, XP055982567, ISSN: 1759-9954, DOI: 10.1039/C8PY01236A * |
| GHADIPASHA NAVID, ZHU WENBO, ROMAGNOLI JOSE A., MCAFEE TERRY, ZEKOSKI THOMAS, REED WAYNE F.: "Online Optimal Feedback Control of Polymerization Reactors: Application to Polymerization of Acrylamide–Water–Potassium Persulfate (KPS) System", INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, AMERICAN CHEMICAL SOCIETY, vol. 56, no. 25, 28 June 2017 (2017-06-28), pages 7322 - 7335, XP093095366, ISSN: 0888-5885, DOI: 10.1021/acs.iecr.7b01074 * |
| RICHARDS, J.R. ; CONGALIDIS, J.P.: "Measurement and control of polymerization reactors", COMPUTERS & CHEMICAL ENGINEERING, PERGAMON PRESS, OXFORD,, GB, vol. 30, no. 10-12, 12 September 2006 (2006-09-12), GB , pages 1447 - 1463, XP027942768, ISSN: 0098-1354 * |
| SANTOS RODRIGO V.; COSTA GLORIA M.; PONTES KAREN V.: "Development of Tailor-Made Superabsorbent Polymers: Review of Key Aspects from Raw Material to Kinetic Model", JOURNAL OF POLYMERS AND THE ENVIRONMENT, SPRINGER NEW YORK LLC, US, vol. 27, no. 9, 19 June 2019 (2019-06-19), US , pages 1861 - 1877, XP036833555, ISSN: 1566-2543, DOI: 10.1007/s10924-019-01485-0 * |
| See also references of EP4506391A4 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20250222423A1 (en) | 2025-07-10 |
| EP4506391A4 (en) | 2025-10-15 |
| EP4506391A1 (en) | 2025-02-12 |
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