CN115353473A - Preparation process of perchloromethylmercaptan - Google Patents
Preparation process of perchloromethylmercaptan Download PDFInfo
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- CN115353473A CN115353473A CN202210872686.8A CN202210872686A CN115353473A CN 115353473 A CN115353473 A CN 115353473A CN 202210872686 A CN202210872686 A CN 202210872686A CN 115353473 A CN115353473 A CN 115353473A
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- chlorination reactor
- carbon disulfide
- tank
- perchloromethylmercaptan
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- RYFZYYUIAZYQLC-UHFFFAOYSA-N perchloromethyl mercaptan Chemical compound ClSC(Cl)(Cl)Cl RYFZYYUIAZYQLC-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 claims abstract description 99
- 238000005660 chlorination reaction Methods 0.000 claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 20
- 239000000460 chlorine Substances 0.000 claims abstract description 20
- 238000000605 extraction Methods 0.000 claims abstract description 20
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 18
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 12
- 238000004880 explosion Methods 0.000 claims description 11
- 230000035484 reaction time Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 abstract description 9
- 238000005422 blasting Methods 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 4
- 239000000376 reactant Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000000543 intermediate Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 12
- 238000010924 continuous production Methods 0.000 description 5
- 239000000575 pesticide Substances 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 239000003899 bactericide agent Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012267 brine Substances 0.000 description 2
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- LDVVMCZRFWMZSG-OLQVQODUSA-N (3ar,7as)-2-(trichloromethylsulfanyl)-3a,4,7,7a-tetrahydroisoindole-1,3-dione Chemical compound C1C=CC[C@H]2C(=O)N(SC(Cl)(Cl)Cl)C(=O)[C@H]21 LDVVMCZRFWMZSG-OLQVQODUSA-N 0.000 description 1
- 239000005745 Captan Substances 0.000 description 1
- 239000005789 Folpet Substances 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940117949 captan Drugs 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- HKIOYBQGHSTUDB-UHFFFAOYSA-N folpet Chemical compound C1=CC=C2C(=O)N(SC(Cl)(Cl)Cl)C(=O)C2=C1 HKIOYBQGHSTUDB-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- -1 leakage Chemical compound 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000010626 work up procedure Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C381/00—Compounds containing carbon and sulfur and having functional groups not covered by groups C07C301/00 - C07C337/00
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to the technical field of perchloromethylmercaptan, and relates to a preparation process of perchloromethylmercaptan, which comprises the following devices: chlorine buffer tank, carbon disulfide intermediate tank, chlorination reactor, extraction kettle, blasting absorption tank, condenser and circulating pump. The preparation process of the perchloromethylmercaptan comprises the following steps: s1, adding dilute hydrochloric acid into a reactor, and starting a circulating pump; s2, continuously introducing carbon disulfide and chlorine into a reactor, and simultaneously controlling the temperature of the reactor; s3, after the reaction, when the liquid in the chlorination reactor reaches a certain density and the liquid level reaches a discharging level, opening a discharging valve, closing the discharging valve after the liquid level reaches a low liquid level, and adding water; and S4, allowing liquid flowing out of the discharging valve to enter an extraction kettle, standing, and separating a lower layer liquid to obtain a product. The method reduces the loss and waste of reactants, reduces the generation of byproducts, effectively improves the yield, is safe, convenient and fast, has low cost, can continuously produce, and has remarkable progress and good application prospect.
Description
Technical Field
The invention relates to the technical field of perchloromethylmercaptan, in particular to a preparation process of perchloromethylmercaptan.
Background
Perchloromethanethiol is an important intermediate raw material of pesticide bactericide such as captan, folpet, terra juna and the like, although the pesticide is old, the pesticide is sold by ten thousand tons in the international market, and the pesticide is difficult to replace by modern new agricultural bactericide. Therefore, the production of intermediates of the bactericide is urgent.
At present, the production methods of perchloromethylmercaptan are few, and the common method is to prepare perchloromethylmercaptan by taking carbon disulfide, dilute hydrochloric acid and chlorine as raw materials through chlorination, and the reaction formula is as follows: CS 2 +5Cl 2 +4H 2 O→CCl 3 SCl+6HCl+H 2 SO 4 . The traditional preparation process flow comprises the following steps: adding dilute hydrochloric acid into a chlorination reaction kettle, adding carbon disulfide, starting to stir until the temperature rises to 25-30 ℃, introducing chlorine for 20-25 hours, taking liquid to measure specific gravity, and finishing the reaction when the specific gravity reaches more than 1.65.
However, the yield of the product is only 60% when the traditional process production mode is adopted for production. The carbon disulfide and chlorine are carried along with the removal of acid gas, and the content of byproducts is high. General carbon disulfide can be retrieved through the secondary condensation in the improvement technology at present, and this recovery mode can retrieve a small amount of carbon disulfide and absorb it completely, but to the condition that carbon disulfide throws in a large number, then can't retrieve, causes the heavy polluted environment of smell, still arouses easily to catch fire, and the workman works under the condition that carbon disulfide runs out, emits, drips for a long time seriously influences health, influences product yield simultaneously, increases manufacturing cost, reduction in production efficiency.
In summary, there is a need to develop a novel process for preparing perchloromethylmercaptan, so as to solve the problems existing in the prior art and meet the requirements of the current industry.
Disclosure of Invention
The invention provides a preparation process of perchloromethylmercaptan, which is improved on a production process and production equipment. This production mode adopts closed continuous production mode, stops revealing of carbon disulfide and chlorine, and when the high injection feeding simultaneously, the reactant contact surface increases, and the accessory substance significantly reduces, and the reaction yield promotes, has overcome prior art's shortcoming and not enough.
One object of the present invention is to provide a process for producing perchloromethylmercaptan, which comprises the following steps: a chlorine buffer tank, a carbon disulfide intermediate tank, a chlorination reactor, an extraction kettle, an explosion absorption tank, a condenser and a circulating pump;
the device comprises a chlorine gas buffer tank, a carbon disulfide intermediate tank, a condenser, an explosion absorption tank, an extraction kettle, a condenser, a chlorine gas buffer tank, a carbon disulfide intermediate tank, a circulating pump, a condenser, an explosion absorption tank and an extraction kettle, wherein a discharge port of the chlorine gas buffer tank is connected with a feed port of the chlorination reactor;
the preparation process of the perchloromethylmercaptan comprises the following steps:
s1, adding dilute hydrochloric acid into a chlorination reactor, and starting a circulating pump;
s2, continuously introducing carbon disulfide and chlorine into a chlorination reactor, and simultaneously controlling the temperature of the chlorination reactor;
s3, after the reaction, when the liquid in the chlorination reactor reaches a certain density and the liquid level reaches the discharging level, opening a discharging valve, closing the discharging valve after the liquid level reaches a low level, and adding water;
and S4, feeding the liquid flowing out of the discharging valve into an extraction kettle, standing, and separating a lower layer liquid to obtain a product.
The closed loop reactor adopts a continuous reaction mode, can completely convert the carbon disulfide and the chlorine, and avoids the overflow of the carbon disulfide and the chlorine. A safe and clean production environment is created for workers.
Further, in step S1, the concentration of the dilute hydrochloric acid is 2 to 10%.
Further, in the step S2, the molar ratio of the carbon disulfide to the chlorine gas is 1 (5-6).
Further, in step S2, the temperature of the chlorination reactor is 15-20 ℃.
Further, in the step S3, the reaction time is 24-28 h.
Further, in step S3, the density is 1.65 to 1.80.
Further, in the step S3, the liquid level is 54-55% of the volume of the chlorination reactor, and the low liquid level is 38-40% of the volume of the chlorination reactor.
Further, in step S3, the amount of water added is 0.5 to 2 times the volume of the dilute hydrochloric acid.
In the continuous reaction, dilute hydrochloric acid is not needed to be supplemented, water is directly supplemented, and HCL generated in the absorption reactor is used as an initiator of the reaction, so that continuous production can be carried out.
The invention has the following beneficial effects:
1. the invention is a continuous reaction, and compared with the operation steps of the traditional batch reaction, the labor amount of workers is reduced.
2. The invention adopts the Wenquili high-injection contact reaction, improves the reaction yield and reduces the generation of byproducts.
3. The production device of the invention uses a closed-loop reactor, and avoids the pollution to the environment and the harm to the human health caused by the problems of carbon disulfide and chlorine gas such as leakage, overflow, dripping, leakage and the like.
4. The invention adopts a continuous feeding mode, can utilize the product to carry out continuous production, does not need to add dilute hydrochloric acid in the reaction process, and reduces the cost of raw materials.
Drawings
FIG. 1 shows a process flow diagram for the preparation of perchloromethylmercaptan according to the invention;
reference numerals: 1-chlorine buffer tank; 2-a carbon disulfide intermediate tank; 3-a chlorination reactor; 4-extraction kettle; 5-blasting the absorption tank; 6-a condenser; 7-circulating pump.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the following examples are listed. The starting materials, the reactions and the work-up procedures present in the examples are, unless otherwise stated, commercially available starting materials and techniques known to those skilled in the art.
The words "preferred", "preferably", "more preferred", and the like, in the present invention, refer to embodiments of the invention that may provide certain benefits, under certain circumstances. However, other embodiments may be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention.
It should be understood that other than in any operating examples, or where otherwise indicated, all numbers expressing, for example, quantities of ingredients used in the specification and claims are to be understood as being modified in all instances by the term "about". Accordingly, unless indicated to the contrary, the numerical parameters set forth in the following specification and attached claims are approximations that may vary depending upon the desired properties to be obtained by the present invention.
The meaning of "up and down" in the present invention means that when a reader faces the drawings, the upper side of the reader is the upper side, and the lower side of the reader is the lower side, and is not a specific limitation on the mechanism of the device of the present invention.
When a component, element, or layer is referred to as being "on," "bonded to," "connected to," or "coupled to" another element or layer, it may be directly on, bonded to, connected to, or coupled to the other element, or layer, or intervening elements or layers may be present. In contrast, when an element is referred to as being "directly on," "directly coupled to," "directly connected to" or "directly coupled to" another element or layer, there may be no intervening elements or layers present. Other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between.. And" directly between., "adjacent" and "directly adjacent," etc.). As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
A preparation process of perchloromethylmercaptan comprises the following devices: a chlorine buffer tank, a carbon disulfide intermediate tank, a chlorination reactor, an extraction kettle, an explosion absorption tank, a condenser and a circulating pump;
the device comprises a chlorine gas buffer tank, a carbon disulfide intermediate tank, a condenser, an explosion absorption tank, an extraction kettle, a condenser, a chlorine gas buffer tank, a carbon disulfide intermediate tank, a circulating pump, a condenser, an explosion absorption tank and an extraction kettle, wherein a discharge port of the chlorine gas buffer tank is connected with a feed port of the chlorination reactor;
the preparation process of the perchloromethylmercaptan comprises the following steps:
s1, adding 387 mL of industrial hydrochloric acid solution (the concentration is 31%) and 1200mL of water into a chlorination reactor (10L), and starting a circulating pump;
s2, continuously introducing carbon disulfide and chlorine into a chlorination reactor, wherein the introduction amount of the carbon disulfide is 0.32 g/S, the introduction amount of the chlorine is 1.5 g/S, and simultaneously opening a cold brine valve to control the temperature of the chlorination reactor to be 20 ℃;
s3, after reacting for 24 hours, when the density of the liquid in the chlorination reactor is greater than 1.65 and the liquid level reaches 1800mL, opening a discharging valve, closing the discharging valve after the liquid level reaches 1200mL, and supplementing 400 mL of water;
and S4, feeding the liquid flowing out of the discharging valve into an extraction kettle, standing, separating the lower layer liquid to obtain a light yellow liquid, and collecting the light yellow liquid into a metering storage bottle to obtain a product.
FIG. 1 shows a process flow diagram for the preparation of perchloromethylmercaptan according to the invention;
reference numerals: 1-chlorine buffer tank; 2-a carbon disulfide intermediate tank; 3-a chlorination reactor; 4-extraction kettle; 5-blasting the absorption tank; 6-a condenser; 7-circulating pump.
Example 2
A preparation process of perchloromethylmercaptan comprises the following devices: a chlorine buffer tank, a carbon disulfide intermediate tank, a chlorination reactor, an extraction kettle, a blasting absorption tank, a condenser and a circulating pump;
the device comprises a chlorine gas buffer tank, a carbon disulfide intermediate tank, a condenser, an explosion absorption tank, an extraction kettle, a condenser, a chlorine gas buffer tank, a carbon disulfide intermediate tank, a circulating pump, a condenser, an explosion absorption tank and an extraction kettle, wherein a discharge port of the chlorine gas buffer tank is connected with a feed port of the chlorination reactor;
the preparation process of the perchloromethylmercaptan comprises the following steps:
s1, adding 120L of industrial hydrochloric acid solution (with the concentration of 31%) and 1360L of water into a chlorination reactor (3000L), and starting a circulating pump;
s2, continuously introducing carbon disulfide and chlorine into a chlorination reactor, wherein the introduction amount of the carbon disulfide is 96 g/S, the introduction amount of the chlorine is 450 g/S, and simultaneously opening a cold brine valve to control the temperature of the chlorination reactor to be 20 ℃;
s3, after 24 hours of reaction, when the density of the liquid in the chlorination reactor is greater than 1.65 and the liquid level reaches 2000L, opening a discharging valve, closing the discharging valve after the liquid level reaches 1200L, and supplementing 200L of water;
and S4, feeding the liquid flowing out of the discharging valve into an extraction kettle, standing, separating a lower layer liquid to obtain a light yellow liquid, and collecting the light yellow liquid into a metering storage bottle to obtain a product.
Test example
The test method comprises the following steps:
the process for producing perchloromethylmercaptan from example 1-2 was analyzed for properties, and the reactant consumption and the yield of perchloromethylmercaptan were counted and the yield was calculated for 24 hours of continuous production. Yield = actual mass of product/theoretical mass of product.
The test results are shown in table 1.
TABLE 1 Perchloromethanethiol preparation Process Performance test results
According to the table 1, the preparation process of the perchloromethylmercaptan has the advantages that the yield can reach more than 96%, the loss and waste of reactants are reduced, the generation of byproducts is reduced, the yield is effectively improved, and meanwhile, the preparation process is safe, convenient, low in cost, capable of realizing continuous production, remarkable in progress and very good in application prospect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (8)
1. A preparation process of perchloromethylmercaptan is characterized by comprising the following devices: a chlorine buffer tank, a carbon disulfide intermediate tank, a chlorination reactor, an extraction kettle, an explosion absorption tank, a condenser and a circulating pump;
the device comprises a chlorine gas buffer tank, a carbon disulfide intermediate tank, a condenser, an explosion absorption tank, an extraction kettle, a condenser, a chlorine gas buffer tank, a carbon disulfide intermediate tank, a circulating pump, a condenser, an explosion absorption tank and an extraction kettle, wherein a discharge port of the chlorine gas buffer tank is connected with a feed port of the chlorination reactor;
the preparation process of the perchloromethylmercaptan comprises the following steps:
s1, adding dilute hydrochloric acid into a chlorination reactor, and starting a circulating pump;
s2, continuously introducing carbon disulfide and chlorine into a chlorination reactor, and simultaneously controlling the temperature of the chlorination reactor;
s3, after the reaction, when the liquid in the chlorination reactor reaches a certain density and the liquid level reaches the discharging level, opening a discharging valve, closing the discharging valve after the liquid level reaches a low liquid level, and adding water;
and S4, feeding liquid flowing out of the discharging valve into an extraction kettle, standing, and separating a lower layer liquid to obtain a product.
2. The process according to claim 1, wherein the concentration of the diluted hydrochloric acid in step S1 is 2-10%.
3. The process according to claim 1, wherein the molar ratio of carbon disulfide to chlorine gas in step S2 is 1 (5-6).
4. The process according to claim 1, wherein the chlorination reactor temperature in step S2 is 15 to 20 ℃.
5. The process according to claim 1, wherein the reaction time in step S3 is 24-28 h.
6. The process according to claim 1, wherein the density in step S3 is 1.65 to 1.80.
7. The process according to claim 1, wherein in step S3, the liquid level is 54-55% of the volume of the chlorination reactor, and the low liquid level is 38-40% of the volume of the chlorination reactor.
8. The process according to claim 1, wherein the amount of water added in step S3 is 0.5 to 2 times the volume of the diluted hydrochloric acid.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210872686.8A CN115353473A (en) | 2022-07-21 | 2022-07-21 | Preparation process of perchloromethylmercaptan |
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| CN202210872686.8A CN115353473A (en) | 2022-07-21 | 2022-07-21 | Preparation process of perchloromethylmercaptan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117567341A (en) * | 2023-12-04 | 2024-02-20 | 青岛润农化工有限公司 | Synthesis method of perchloromethyl mercaptan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3544625A (en) * | 1964-08-11 | 1970-12-01 | Jan Masat | Method for producing perchloromethyl mercaptan |
| US3968155A (en) * | 1974-06-21 | 1976-07-06 | Produits Chimiques Ugine Kuhlmann | Process for prepared perchloromethyl mercaptan by chlorination of carbon disulfide |
| US3993693A (en) * | 1975-07-30 | 1976-11-23 | Olin Corporation | Method for producing perchloromethyl mercaptan |
| CN103360295A (en) * | 2012-04-06 | 2013-10-23 | 英德广农康盛化工有限责任公司 | Device and method for preparing perchloromethylmercaptan |
| CN206553431U (en) * | 2017-02-24 | 2017-10-13 | 宁夏格瑞精细化工有限公司 | The system of continuous production perchlormethyl |
| CN113480461A (en) * | 2021-07-19 | 2021-10-08 | 内蒙古同创高科化学有限公司 | Method for continuously synthesizing perchloromethylmercaptan by using reaction tower |
-
2022
- 2022-07-21 CN CN202210872686.8A patent/CN115353473A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3544625A (en) * | 1964-08-11 | 1970-12-01 | Jan Masat | Method for producing perchloromethyl mercaptan |
| US3968155A (en) * | 1974-06-21 | 1976-07-06 | Produits Chimiques Ugine Kuhlmann | Process for prepared perchloromethyl mercaptan by chlorination of carbon disulfide |
| US3993693A (en) * | 1975-07-30 | 1976-11-23 | Olin Corporation | Method for producing perchloromethyl mercaptan |
| CN103360295A (en) * | 2012-04-06 | 2013-10-23 | 英德广农康盛化工有限责任公司 | Device and method for preparing perchloromethylmercaptan |
| CN206553431U (en) * | 2017-02-24 | 2017-10-13 | 宁夏格瑞精细化工有限公司 | The system of continuous production perchlormethyl |
| CN113480461A (en) * | 2021-07-19 | 2021-10-08 | 内蒙古同创高科化学有限公司 | Method for continuously synthesizing perchloromethylmercaptan by using reaction tower |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117567341A (en) * | 2023-12-04 | 2024-02-20 | 青岛润农化工有限公司 | Synthesis method of perchloromethyl mercaptan |
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Application publication date: 20221118 |