WO2020198819A1 - Procédé d'obtention de noir de carbone organique à partir de cendres résiduelles d'une usine de production de sucre et d'alcool, et produit obtenu - Google Patents

Procédé d'obtention de noir de carbone organique à partir de cendres résiduelles d'une usine de production de sucre et d'alcool, et produit obtenu Download PDF

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Publication number
WO2020198819A1
WO2020198819A1 PCT/BR2019/050121 BR2019050121W WO2020198819A1 WO 2020198819 A1 WO2020198819 A1 WO 2020198819A1 BR 2019050121 W BR2019050121 W BR 2019050121W WO 2020198819 A1 WO2020198819 A1 WO 2020198819A1
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WO
WIPO (PCT)
Prior art keywords
carbon black
organic
residual ash
straw
organic carbon
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/BR2019/050121
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English (en)
Portuguese (pt)
Inventor
João Otavio Silva PEDAIS
Lidiane Patricia GONÇALVES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Machado Jose Rubens Heck
Silva Rogerio Afonso Da
Original Assignee
Machado Jose Rubens Heck
Silva Rogerio Afonso Da
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Machado Jose Rubens Heck, Silva Rogerio Afonso Da filed Critical Machado Jose Rubens Heck
Priority to BR112021019788-5A priority Critical patent/BR112021019788B1/pt
Priority to PCT/BR2019/050121 priority patent/WO2020198819A1/fr
Publication of WO2020198819A1 publication Critical patent/WO2020198819A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44—Carbon
    • C09C1/48—Carbon black
    • C09C1/50—Furnace black ; Preparation thereof
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK  ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
    • C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
    • C09C1/44—Carbon
    • C09C1/48—Carbon black
    • C09C1/56—Treatment of carbon black ; Purification
    • C09C1/58—Agglomerating, pelleting, or the like by wet methods

Definitions

  • the present invention belongs to the chemistry section, to the field of carbon black preparations, however, from renewable organic raw material.
  • Carbon Black or “Carbon BlacK”, as it is also known, is present in everyone's life, directly or indirectly, to a greater or lesser extent. It represents one of the pure forms of carbon, such as: graphite, diamond and graphene. Contrary to popular belief, carbon black is not only used to pigment paints, polymer artifacts or rubbers. About 70% of the volume produced of this product is used by the tire industry, as its application with rubber makes it more resistant and, consequently, presents greater durability. This resistance also ends up favoring the civil construction market, replacing part of the sand and providing greater resistance to cement, at a cost that justifies the replacement.
  • carbon black is obtained from non-renewable sources that overly harm the environment, such as oil and natural gas, the predominant source being oil.
  • the present invention proposes a process for obtaining organic carbon black, from the residual ashes of bagasse and sugarcane straw, from the boilers of the plants.
  • Lignocellulosic fibers consist of lignin, cellulose and hemicellulose, being present in all plants, in greater or lesser quantities, depending on the plant species. Such fibers are found in the straw and sugarcane bagasse, and have, in their molecular structure, carbon, being, then, considered an organic element. Together with carbon, in the residual ash or soot of the sugar and alcohol industry, silica is found (Si0 2 ).
  • soot allows its use in the production of organic carbon black (NFO).
  • NFO organic carbon black
  • the proposed organic carbon black (NFO) adds in its entire process of obtaining the environmental solution to a tailings that currently has no use for the plants, which, in turn, spend large amounts and energy to try, ineffective way, reduce the impacts generated by disposal in nature.
  • the process also adds generation of direct and indirect jobs, as well as subsidies for new research in the area of waste treatment, recycling and less polluting materials / products. It is also worth mentioning that this process still allows a reduction in the value of the ton, when compared to the carbon black obtained from oil and gas.
  • the present invention has, in essence, an environmental concern, enabling the resolution of an important technical problem: the large amount of residual ash from burning straw and sugarcane bagasse. sugar -glig-, generated by the plants, from the use of this abundant and highly polluting residue, as raw material for obtaining carbon black, conventionally obtained from non-renewable sources, such as oil and natural gas. [015] Thus, the present invention reveals a concern to add value to an environmental liability, which positively influences not only the environment, but all those who use it as a supplier of raw material and depository of the generated waste.
  • carbon black made from rice husk is still known and used by the market, which is used as a filler in compositions of the butadiene-styrene elastomer (SBR), as described in the publication “Gray of rice husk in compositions of the butadiene elastomer styrene (SBR) ”, by Rodrigues et al. (2000), presented at the Brazilian Congress of Engineering and Materials Science, 14, in S ⁇ o Pedro-SP.
  • SBR butadiene-styrene elastomer
  • Indiana Distribuiç ⁇ es also describes the partial replacement of conventional carbon black, obtained from the incomplete combustion of organic compounds, such as resin, tar, acetylene and waste tires; by amorphous silica from the rice husk.
  • Pirelli ® also uses rice husk silica in the production of its 'green' tires, which are intended for passenger cars and trucks, as they have low rolling resistance, which provides greater fuel economy.
  • Silica replaces petroleum-derived carbon black in the composition of a tire, making it more resistant to lacerations and generating less resistance of the tire in contact with the ground, which, consequently, guarantees lower fuel consumption.
  • the purpose of the present invention is to provide a process for obtaining organic carbon black, using an abundant raw material with a high polutive power, the residual ashes of bagasse and sugarcane straw, providing a product with a high degree of purity and quality, in addition to being less impactful to the environment.
  • the present invention relates to a process of obtaining organic carbon black from residual bagasse ashes and sugarcane straw, an abundant and highly polluting residue from sugar and alcohol plants.
  • the described process makes it possible to transform an environmental liability into an asset, through reasonably simple steps, which do not require many components or extensive processing periods.
  • Figure 1 Flowchart of the process for obtaining organic carbon black
  • Figure 2 Dry soot, raw material used in the pleaded process.
  • the process of obtaining organic carbon black begins with the collection (E1) of the residual ash from straw and sugarcane bagasse (1), which comes from the sugar and alcohol plants. Then, these residual ashes of straw and sugarcane bagasse (1) are dried (E2), in a pyrolysis oven, with a controlled atmosphere between 100 and 800 ° C, for a period of up to 5 hours. After drying (E2), the dry material (2) is sieved (E3), in order to promote the separation of particles that were not burned in the plant's boiler, which are later discarded.
  • the homogenization and determination (E4) of the size of the sieved particles (3) is done, in a ball mill and SEM-feg equipment, and the particle size is determined by the application of the final product, being adjusted according to need.
  • the separation (E5) of silica and carbon is carried out, in a pyrolysis oven with controlled temperature and atmosphere, between 100 and 800 ° C, in the absence of oxygen.
  • the material is sieved (E6) to separate the particles by size.
  • the sieved material (4) is washed (E7) with strong acid (5), selected from: sulfuric acid or weaker acids, such as nitric acid, acetic acid or hydrochloric acid, according to the final application of the product, in proportion of 20% when strong acid, 50% when moderate acid and 80% when weak acid, in aqueous solution.
  • strong acid (5) selected from: sulfuric acid or weaker acids, such as nitric acid, acetic acid or hydrochloric acid, according to the final application of the product, in proportion of 20% when strong acid, 50% when moderate acid and 80% when weak acid, in aqueous solution.
  • red or green clay (6) is added, in up to 25% w / w of the residual ash, which is kept in contact for 2 hours, until the mixture (7) is washed (E9) to remove strong acid (5) and clay (6).
  • bases of the 1 A family such as NaOH
  • organic carbon black (NFO) is obtained and, as it is an extremely fine powder product, with particles between 20 and 70nm, it must be compacted for better handling, packaging and transportation.
  • organic carbon black (NFO) is pelleted (E13), following the protocol of conventionally used processes, without the need for parameter control; packaged (E14) in packages of 100 and 250kg, and packed (E15) in a cool, dry place, however, ventilated and away from sources of heat and electricity.
  • the organic carbon black (NFO) obtained can be used in different industrial sectors, replacing the carbon black conventionally obtained from from non-renewable raw materials, such as oil and natural gas; or even, replacing those obtained from rice straw, which requires a process with a greater environmental impact.
  • Some applications of the product described are in the production of pigments, for example, in toners, inkjet inks; and in the production of tires, such as load and reinforcement, which confer properties such as tear resistance.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Carbon And Carbon Compounds (AREA)

Abstract

La présente invention concerne un procédé d'obtention de noir de carbone organique à partir de cendres résiduelles de bagasse et de paille de canne à sucre (1), un résidu abondant et à haut pouvoir polluant, provenant des usines de production de sucre et d'alcool. Le procédé décrit permet la transformation d'un passif environnemental en actif, au moyen d'opérations relativement simples, telles que le séchage (E2 et E12), le tamisage (E3 et E6), le lavage (E7 et E11), qui ne font pas intervenir beaucoup de constituants, simplement de l'argile (6), un acide fort (5) et une base forte (9) et de l'eau (11), et ne requièrent pas de périodes prolongées de traitement. Le noir de carbone organique (NCO) obtenu à partir du procédé proposé possède un haut niveau de pureté et une qualité élevée, d'où la possibilité de l'utiliser dans divers domaines, en remplacement des noirs de carbone habituellement obtenus à partir de paille de riz, dont l'obtention nécessite un procédé ayant un plus fort impact environnemental, ou de pétrole ou de gaz naturel, qui sont des matières premières non renouvelables.
PCT/BR2019/050121 2019-04-02 2019-04-02 Procédé d'obtention de noir de carbone organique à partir de cendres résiduelles d'une usine de production de sucre et d'alcool, et produit obtenu Ceased WO2020198819A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112021019788-5A BR112021019788B1 (pt) 2019-04-02 Processo de obtenção de negro de fumo orgânico a partir de cinza residual da usina sucroalcooleira e produto obtido
PCT/BR2019/050121 WO2020198819A1 (fr) 2019-04-02 2019-04-02 Procédé d'obtention de noir de carbone organique à partir de cendres résiduelles d'une usine de production de sucre et d'alcool, et produit obtenu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/BR2019/050121 WO2020198819A1 (fr) 2019-04-02 2019-04-02 Procédé d'obtention de noir de carbone organique à partir de cendres résiduelles d'une usine de production de sucre et d'alcool, et produit obtenu

Publications (1)

Publication Number Publication Date
WO2020198819A1 true WO2020198819A1 (fr) 2020-10-08

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PCT/BR2019/050121 Ceased WO2020198819A1 (fr) 2019-04-02 2019-04-02 Procédé d'obtention de noir de carbone organique à partir de cendres résiduelles d'une usine de production de sucre et d'alcool, et produit obtenu

Country Status (1)

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WO (1) WO2020198819A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013175488A2 (fr) * 2012-03-30 2013-11-28 Aditya Birla Science And Technology Company Ltd. Procédé permettant d'obtenir de la poudre de noir de carbone à teneur en soufre réduite
BRPI9903330B1 (pt) * 1999-07-20 2016-07-19 Univ Sao Paulo processo de obtenção de compostos carbonáceos a partir do bagaço de cana de açúcar

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BRPI9903330B1 (pt) * 1999-07-20 2016-07-19 Univ Sao Paulo processo de obtenção de compostos carbonáceos a partir do bagaço de cana de açúcar
WO2013175488A2 (fr) * 2012-03-30 2013-11-28 Aditya Birla Science And Technology Company Ltd. Procédé permettant d'obtenir de la poudre de noir de carbone à teneur en soufre réduite

Also Published As

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BR112021019788A2 (pt) 2021-12-07

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