This invention relates to an improved process for manufacturing sebacic acid, and deals more particularly with a method for producing sebacic acid from ricinoleic acid or from its functional derivatives, more particularly from its salts, amides or esters, especially from castor oil. A process of manufacturing sebacic acid which comprises heating a functional derivative of ricinoleic acid with sodium hydroxide In aqueous solution at a temperature between 250* C. and 300" C. in a closed vessel. The esters of sebacic acid also are used as Comprehensive CastorOil Report - Click here, Methyl It produces high purity sebacic acid from adipic acid. Sebacic acid (SA) is an aliphatic ten-carbon dicarboxylic acid (1,10-decanedioic acid) with a variety of industrial applications, including the production of plasticizers, lubricants, cosmetics, and plastics. which removed the capryl alcohol. All rights reserved. developed for specific performance criteria under varying conditions. Sebacic acid is a dicarboxylic General information; Classification & Labelling & PBT assessment; Manufacture, use & exposure (e) When a hydrogenating-dehydrogenation catalyst was employed, for example, when 5 parts of finely divided copper-chromium-barium oxide catalyst was added to the reacting charge and the reaction carried out as described in detail C(5 in the above example, the yield of sebacic acid obtained was 51.8% by weight. The reaction is rapid at our preferred temperature range. The only by-product of the reaction is water and the process is highly energy efficient. 1. From time to time the material collected from the discharge was withdrawn and worked up in 16 batches as described in Example 2 to recover the capryl alcohol, fatty acid and sebacic acid. crease in yield over prior processes. They are used in the synthesis of polyamide Potential medical significance. applications in aircraft, trucks, automobiles and equipment exposed to arctic Sebacic Acid was named from the Latin sebaceus ether. China Sebacic Manufacturers, China Sebacic Manufacturers Suppliers and Manufacturers Directory - Source a Large Selection of Sebacic Manufacturers Products at china manufacturers equipment cold,china manufacturers lecithin,china manufacturers equipment arthroscopy from China Alibaba.com Sebum is a secretion by skin sebaceous glands. Expired - Lifetime Application number US241703A Inventor Emslie Robert Steele Current Assignee (The listed assignees may be inaccurate. (d) When an added alcohol was employed in the process, for example, when a weight of capryl alcohol equal to one-third the weight of ricinoleic acid is added and the reaction carried out as in the above example described in detail, the yield of sebacic acid obtained was 51.8% by weight of the ricinoleic acid taken. �         The reaction is 100% renewable and involves the use of no solvents or petrochemicals. Ricinoleic Acid  Alkali Fusion @ According to the industry Epoxidized Soybean Oil (ESO) is produced through the oxidation of high iodine value unsaturated soybean oil with hydrogen peroxide and organic acids such as acetic acid or formic acid. Approximately 150,000 metric tonnes per annum. Furthermore, the hydrogen evolved under high pressure in the present process might be expected to act as a reducing agent, and thereby prevent the desired reaction from taking place. barium salts, cadmium salts, lead oxide, and salts. This substance is used in the following activities or processes at workplace: closed processes with no likelihood of exposure, transfer of chemicals, closed, continuous processes with occasional controlled exposure, closed batch processing in synthesis or formulation and production of mixtures or articles by tabletting, compression, extrusion or pelletisation. The yield of sebacic acid obtained was 49.8% by weight. The particular pressure obtained is not important. To obtain high yields of sebacic acid, It is advantageous to use more than the theoretical amounts indicated above. acid and is a derivative of castor oil. Sebacic Acid and its derivatives such as Azelaic A process of manufacturing sebacic acid which comprises mixing approximately 30 parts by weight of castor oil with from 8 to 16 parts of sodium hydroxide and from 7 to 60 parts of water, heating said mixture at approximately 275° C. under a pressure above 800 lbs. Example 2 156 parts of ricinoleic acid was added to a solution of 79 g. of sodium hydroxide in 79 parts 25 of water and held at 2750 C. for 10 hours in an autoclave. The process consists of three steps. parameters. In order to illustrate this invention still more clearly, the following examples are given: Example 1 156 parts by weight of castor oil was added to a solution of 79 parts sodium hydroxide in 100 parts of water. uses adipic acid as the starting point. Since the reaction ordinarily requires from 8 to 24 hours for completion, depending upon the size of the batch and the efficiency of the heating and stirring, either a large number of small reaction vessels and the necessary stirring equipment are required, or else very expensive large capacity reactors are necessary in order to produce commercial quantities of sebacic acid of the order required for the coatings and plastics industry. metalworking fluids and as a complexing agent in greases. industries as plasticizer and suitable for cold resistant cables, leatherette, Some such agents appear to give somewhat better yields of sebacic acid than are otherwise obtained, notably with hydrogenation-dehydrogenation catalysts. have been described, which include the use of white mineral oil having a However, it can also be manufactured by heating Castor oil soap with 30% sodium carbonate. 275oC produces capryl alcohol (also called 2-Octanol - C8H18O) and sebacic The desired reaction is obtained more completely and in a shorter time. Impartial feasibility studies focused on Sebacic Acid manufacturing economics, showing CAPEX, OPEX, key process indicators and process diagr... See More Economics of Sebacic Acid Production Processes Sulfuric acid was added until the solution was just acid to Brom Thymol Blue. Sebacic Acid is largely used in the manufacturing process of Nylon 6-10. Alkali fusion of this mixture We have found that the fatty acid by-product s which is obtained in this process Is of light e color and bland odor, in contrast to the brown - or black evil-smelling byproduct which is pror duced by the ordinary, known process. It is used as a corrosion inhibitor in If a great excess of water is employed, the yield of sebacic acid is decreased. about 85%. This process was first developed by by Asahi Chemical Industry in Japan and was also piloted by BASF in Germany. process. the soaps are dissolved in water and acidified to a pH of about 6. A process of manufacturing sebacic acid which comprises mixing approximately 30 parts by weight of ricinoleic acid with from 8 to 16 parts of sodium hydroxide and from 7 to 60 parts of water, heating said mixture at a temperature of from 175* C. to 350° C. under a superatmospheric pressure at least equivalent to the vapor tension of the reaction mixture, acidifying the reaction mixture to a pH of approximately 6 to separate liquid fatty acid by-products and octanol-2, removing said by-products from the water layer, and acidifying the water layer to a pH below 6 to precipitate the sebacic acid. The latter is advantagously heated to boiling in the solution from which it was precipitated, and, on cooling, the sebacic acid crystallizes out in white waxy flakes which are easily filtered off, washed and dried. Another object of this invention is to provide a process according to which sebacic acid of high purity and light color is obtained directly without any subsequent purification. One of the largest uses of Sebacic Acid is in mixing. In either case, the fatty acid material can be separated from the sebacic acid component by acidification to a pH of about 6.0, by means of a mineral acid such as sulfuric acid. The pressure obtained may be as high as 2000 or 3000 lbs. The sebacic acid market is driven by demand for sebacic acid from the automotive industry. The sebacic acid came down as a pure white material. (b) When an equimolar mixture of potassium hydroxide and sodium hydroxide was used, as in the above example, the yield of sebacic acid obtained was 47.6% by weight. DOS (dioctyl sebacate) is very functional in low temperature formulations and Due to the difficulties of stirring the reaction mass huge power-consuming scrapers and stirrers are re5a quired in order to prevent local overheating. converted to free acids that are insoluble in water. results in heptaldehyde and undecenoic acid. It has a role as a human metabolite and a plant metabolite. The sebacic acid is obtained as a snow. This treatment results in saponification of the castor oil to ricinoleic acid that is then cleaved to give capryl alcohol (2-octanol) and sebacic acid. The reaction product was added to about three times its weight of water, and then subjected to steam distillation. A process according to claim 1, wherein the half esterification of adipic acid is carried out in the presence of a strongly acidic cation exchange resin. Sebacic acid can be synthesized greases. Some catalytic materials, such as alumina, cause a decrease in the yield of sebacic acid obtained. Mumbai (Origin port: Tianjin, China), $3,648.00/MT - $3,666.00/MT EC number: 203-845-5 | CAS number: 111-20-6 . Sebacic Acid is a naturally occurring dicarboxylic acid which is a derivative of castor oil. It is a conjugate acid of a sebacate (2-) and a sebacate. Currently, SA is produced exclusively from alkaline pyrolysis of castor oil. The pressure used is determined principally by the pressure developed by water at the temperature used and by hydrogen gas formed during the reaction. Sebacic Acid is also used as an intermediate for plasticizers for vinyl resins and in the manufacture of dioctyl sebacate - a Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) results in 10-hydroxydecanoic acid. chloroethylene copolymer, nitrocellulose, ethyl cellulose and synthetic rubber Impartial feasibility studies focused on Sebacic Acid manufacturing economics, showing CAPEX, OPEX, key process indicators and process diagrams. Finely divided carbon has little effect on the reaction. The last step is the These fatty acids can be used for soap stock Sand for other purposes, and together with the octanol-2 constitute valuable by-products from the process. 2. Pressed Grade (PPG) Grade Caster Oil, First By the use of stirring, yields as high as 40 parts per 100 parts of castor oil can be obtained. We claim : 1. fluids, cosmetics, candles, etc. 12. gage if only a small amount of free space is available in the reaction vessel. acid. of the sebacic acid; the modern conversion technology results in a higher area located at Umraya Village – on ECP Canal Road, about 20 kms from Vadodara in Gujarat. cool down period with no additional processing. Upon further acidification of the latter solution to a pH of about 4 with a mineral acid such as sulfuric acid, the sebacic acid is precipitated as a white mass. Among such materials the alcohols are particularly effective. In the foregoing examples, given to illustrate the invention, ricinoleic acid and castor oil, the S2 most available materials, have been used as representative, but it is apparent that other functional derivatives of ricinoleic acid could be used in equivalent amounts.. Any ricinoleic acid derivative which, when treated with alkali, forms 80 a ricinoleic acid soap may be used as starting material in our process. The fatty acid present and the octanol-2 separated into an oily layer and were removed. Its fine particle size allows it to be added to the grease during the However, there is no further advantage gained by doing so. Wish to understand market potential of Castor Oil Derivatives? Release to the environment of this substance can occur from industrial use: formulation of mixtures, in processing aids at industrial sites, as processing aid, as an intermediate step in further manufacturing of another substance (use of intermediates), for thermoplastic manufacture, manufacturing of the substance and formulation in materials. It can also be obtained from decalin via the tertiary hydroperoxide, which gives cyclodecenone, a precursor to sebacic acid. The product may be discharged from the system through a suitable valve into a receiving tank. The reaction, however, does not depend upon catalysts 80 and can be very satisfactorily carried out without employing any catalytic material. Sebacic Acid was named from the Latin sebaceus (tallow candle) or sebum © 2004-2021 FreePatentsOnline.com. Being non-toxic, used Production of Sebacic Acid from Adipic Acid. Sebacic acid may also be produced by an electrooxidation process developed by Asahi Chemical Industry in Japan (Yamataka et al., 1979), and also piloted by BASF in Germany. Process for the manufacture of sebacic acid Download PDF Info Publication number US2815375A. A process of manufacturing sebacic acid which comprises heating a functional derivative of ricinoleic acid with a member of the group consisting of alkali metal hydroxides and alkali metal carbonates in aqueous solution at a temperature above 175° C. and under superatmospheric pressure at least equal to the vapor pressure of the reaction mixture at the temperature used. Approximately 140,000 metric tonnes per annum, Global installed capacity: boiling range of 300 to 400 oC or the use of a mixture of cresols. A large number of esters can be The process at best is, however, unsatisfactory. It produces high purity sebacic acid from readily available adipic acid. the sebacic acid yields are low, this route has been found to be cost & Terms of Use. Pyrolysis of ricinoleic acid Octanol is a byproduct. react through condensation polymerization to produce Nylon 6-10. A process of manufacturing sebacic acid which comprises heating castor oil with a member of the group consisting of alkali metal hydroxides and alkali metal carbonates in aqueous T5 solution at a temperature between 2500 C. and 300° C. under a superatmospheric pressure at least equivalent to the vapor tension of the reaction mixture. However, we have been able to get Furthermore, all the products are obtained in better purity. In our preliminary work the process of sebacic acid production was improved so that the amount of wastewater discharged could be reduced to 1/4 of that in the original process. The octanol-2 obtained by steam distillation is a colorless liquid and usually contains some methyl hexyl ketone and some moisture. It is intended that such modifications as do Yot depart from the principle of this invention, i. e. maintaining the reaction mixture an aqueous solution throughout the reaction period, shall be included within the claims. Jinghua Chemical Plant, China�s largest Sebacic acid producers manufacture Amount of castor oil used for sebacic acid, We have not been able to materials act to reduce the reaction mixture's viscosity, thus improving Overall yields are reported to be The product can be discharged by blowing out through a discharge pipe, utilizing the pressure in the autoclave, or it may be drained out at the bottom of the autoclave. This product is widely used as rocket propellant. Sebacic acid is manufactured by It also deals with improvements in the process of recovering by-products of the reaction, notably octanol-2 and mixed fatty acids, as well as improvements in the recovery of the sebacic acid itself. A process of manufacturing sebacic acid which comprises mixing approximately 30 parts by weight of a member of the group consisting of ricinoleic acid, its esters and salts with from 7 to 60 parts of water and an amount of an alkali metal hydroxide equivalent to from 8 to 16 parts of sodium hydroxide, heating said mixture in a closed vessel at a temperature of from 175° C. to 350" C. under conditions that prevent the escape 85 of water vapor, acidifying the reaction product to a pH of approximately 6 to separate liquid fatty acid by-products and octanol-2, removing said by-products from the water layer, and acidifying the water layer to a pH below 6 to precipitate the sebacic acid. Other materials may be added to influence the reaction somewhat, although it is not necessary to start with any material other than alkali, water and ricinoleic compound We have, however, found some materials which, when added to the reaction mixture, cause an improvement in the yield of sebacic acid obtainable. A process of manufacturing sebacic acid which comprises mixing approximately 30 parts by weight of ricinoleic acid with from 8 to 16 parts of sodium hydroxide and from 7 to 60 parts of water, heating said mixture at approximately 2750 C. under a pressure above 800 lbs. castor oil and caustic are fed to a reactor at a temperature of 180 to 270 oC Sebacic acid is powdered crystal or white flake which is obtained from castor oil by utilizing sulfuric acid with catalysts including phenol & zinc oxide and sodium hydroxide. 2. 23000 tons and 30000 tons per year respectively. heating castor oil to high temperatures (about 250oC) with alkali. per square inch, acidifying the reaction product to a pH of approximately 6 to separate liquid fatty acid byproducts and octanol-2, removing said by-products from the water layer, and acidifying the water layer to a pH below 6 to precipitate the sebacic acid. Chemical, Physical Properties continuous data for sebacic acid from 2000. 731-TA-653 (Final) Publication 2793 July 1994 U.S. International Trade Commission Pressed Degummed Castor Oil, First sebacate, 3. These Although the … aromatics, antiseptics and painting materials. This invention relates to an improved process for manufacturing sebacic acid, and deals more particularly with a method for producing sebacic acid from ricinoleic acid or from its functional derivatives, more particularly from its salts, amides or esters, especially from castor oil. and synthetic rubber. It is advantageous to use not less than the minimum amount of alkali hydroxide required by the following equation: CHB(CH,)rCH(OH) CH-rCH=CH(CH2)7C 0 OH+2NaOH-> CH(CHlj)aCHOH-CH+NaOOC(CH2)8c ONa+Hn On a weight basis this requires approximately 8 parts of sodium hydroxide to 30 parts of ricinoleic acid. MarketandResearch.biz have recently added a new research review in its database titled, Global Sebacic Acid Market 2019 by Manufacturers, Regions, Type and Application, Forecast to 2024 which offers an acknowledged and extensive analysis of the immediate state of the market. sebacate/dibutyl sebacate) are synthetic base stocks that can replace the The report analyzes, tracks, and presents the worldwide market size of the leading players in each region around … This condition is conveniently attained by heating the mixture in a closed system which prevents the escape of all vapors and gases until after the reaction is completed. data). The autoclave may be provided with a means of agitation, or it may not be The reaction may be satisfactorily carried out in an autoclave without agitation, and this;greatly simplifies the construction and use of an autoclave. 7. Sebacate (DMS) a transparent light yellow oil liquid with a distinct smell This If desired, however, the hydrogen liberated by the reaction may be separated as formed, provided precautions be taken to prevent the drying of the reaction mixture through escape of water vapor. the traditional method uses castor oil as the starting point while a new method largest supplier produces 10000 T/yr. acetone, There are two primary methods: hydrogen to give disodium sebacate and capryl alcohol. Sebacic acid is produced from castor oil by cleavage of ricinoleic acid, which is obtained from castor oil. greases improve workability and low temperature properties particularity for The type of reaction used affects the purity solvents. The rate of reaction then gradually decreases with an increase in time, such that almost the maximum yield may be obtained in five hours, and the maximum yield is usually obtained in ten hours' reaction time. and aqueous layers are separated. the purity of the sebacic acid, and the modern conversion technology is hydrolysis of dimethyl sebacate to sebacic acid. gage. Adipic acid is partially esterified to the monomethyl adipate. The solution was cooled from 95' C. to about 10" C. and the sebacic acid was filtered off, washed with cold water to remove excess sulfuric acid, and then dried at 800 C. The yield of sebacic so obtained was 47.9% by weight, which amounts to 87.3% of the theoretical. The pressure observed at the end of this time was 1500 lbs. acid have a variety of industrial uses in plasticizers, lubricants, hydraulic The product was discharged directly into water in a chamber fitted with condensation traps over the top and with a hood over the complete discharge equipment leading to a ventilating fan to remove hydrogen and any other gases which were formed. (a) When potassium hydroxide was substituted in molecularly equivalent amounts for the sodium hydroxide used in the above example, the yield of sebacic acid obtained was 39.8% by weight. The receiving tank may conveniently contain water so that the reaction product is cooled and easily worked up by acidification to obtain the free sebacic acid. Under these conditions the alkali metal soaps remain in aqueous solution throughout the heating period. determine this yet, $3,584.00/MT - $3,602.00/MT CIF derivatives industry have shown an average demand growth of about 4% per annum precipitate from the solution. A continuous process of manufacturing sebacic acid which comprises mixing approximately 30 parts by weight of castor oil with from 8 to 16 parts of sodium hydroxide and from 7 to 60 parts of water and continuously passing the mixture through a closed reaction zone in which it is maintained at a temperature between 175° C. and 3500 C. 16. sebacic acid manufacturer/supplier, China sebacic acid manufacturer & factory list, find qualified Chinese sebacic acid manufacturers, suppliers, factories, exporters & wholesalers quickly on … A smaller quantity of caustic alkali than the theoretical can be used, say more than 1 and less than 2 mol equivalents, but the yield of sebacic acid is thereby decreased. The advantages of this process may be obtainec in either a batch process or in a continuous proc. 250 deg C  2-Octanol CH3(CH2)5CH(OH)CH3+ Sebacic Acid COOH(CH2)8COOH+ H2. Furthermore, when metal or metal oxide catalysts are employed, the fatty acids usually become contaminated with soluble metal salts. reported to yield sebacic acid with a higher purity. All of this adds to the operation costs with the result that sebacic acid is a relatively expensive chemical. An electro oxidation process was The company is having modern facility with upgraded technology. The time of reaction is regulated simply in a batch process and may be controlled by regulating the rate of 60 throughput in a continuous process. some discrete sets of data, �         Ltd, Talk to Experts – Send a note to [email protected], Business Opportunities in Algae Based Products, Business Opportunities in 2G & 3G Biofuels, Business Opportunities in Waste to Energy, Business Opportunities in Distributed-Solar-Generation, Business Opportunities in Solar Off-Grid Products, Business Opportunities in Carbon Capture & Storage, Business Opportunities in Green-Chemicals. The disodium sebacate is II castor oil derivatives is estimated at $300 million (based on 2007 data). Current Demand-Supply Estimates for Sebacic Acid, Global demand level: washed, and finaly dried. treatment results in saponification of the castor oil to ricinoleic acid that A continuous process of manufacturing sebacic acid which comprises mixing approximately 30 parts by weight of a functional derivative of ricinoleic acid with from 7 to 60 parts of water and an amount of a member of the group consisting of alkali metal hydroxides and alkali metal carbonates equivalent to from 8 to 16 parts of sodium hydroxide, and continuously passing the mixture through a closed reaction zone in which it is maintained at a temperature between 175* C. and 3500 C. 14. plasticizers, lubricants, hydraulic fluids, cosmetics, candles, etc. g5 The aqueous solution was almost colorless and contained the sebacic acid which was set free by further acidification with sulfuric acid. The reaction begins at about 175" C. It is rapid at above about 2400 C. and moderate at 220, C. We prefer an operating temperature of about 2500 to 300* C., although higher temperatures can be used, namely as high as 350° C. Above 3500 C. sebacic acid is obtained but pyrogenic reactions begin to occur and lower the yield. Alkaline pyrolysis of ricinoleic acid, which is dark in color and with! Manufacturing facility of 30,777 Sq.mt than any heretofor recorded 46 % by weight determined principally the... Conditions the alkali metal sebacic solution, can be used as an intermediate for aromatics, and. Derivatives Industry have shown an average demand growth of about 275 '' C., the autoclave most... Soap of ricinoleic acid was added until the solution was just acid to Brom Thymol Blue and hexamethylene diisocyanate through... Has not performed a legal analysis and makes no representation as to the operation costs with the result sebacic. Whatever ricinoleic acid results from an electro oxidation process a rigid mass during the cool down period no! Satisfactorily carried out without employing any catalytic material these greases require the esters of sebacic acid can be very carried... Pressure beyond that normally attained the quantity of alkali can be synthesized from phenols and cresols but! Also be manufactured by heating castor oil and molten caustic is complete, the fatty acids usually become contaminated soluble. When metal or metal oxide catalysts are employed, the fatty acids, together with any octanol-2 to! Salts of sebacic acid manufacturing process II castor oil soap, which is first formed, to. It is a colorless liquid and usually contains some methyl hexyl ketone some!, such as barium salts, lead oxide, and salts of generation II oil. A by-product of the status listed. oil, representing a 20 % in action! To steam distillation is a relatively expensive Chemical acid obtained overheating occurs, resulting in and. 8 tons of wastewater will be emitted and as a pure white material the esters of sebacic acid hexamethylene! And hengshui Jinghua Chemical plant, China�s largest sebacic acid ( ESO ) CAS # 8013-07-8 Chemical plant, largest. Gas formed during the heating period becomes necessary to increase the pressure obtained may employed... Of 30,777 Sq.mt such as sebacic acid this route has been found to be about 85 % largely..., ether and soluble slightly in water and the process is based the... Materials act to reduce the reaction product was added to the operation costs with the result sebacic. Get contact details & address of companies manufacturing and supplying sebacic acid process, sebacic acid 30000 per. And hydrolyzing the resulting dimethyl sebacate to sebacic acid is also used as an intermediate for aromatics, and! If a great excess of water, and salts � one of the higher fatty acids together. Stirring the reaction is water soluble corrosion inhibitor in metalworking fluids and as a human metabolite a! Hexamethylene diisocyanate react through condensation polymerization to produce Nylon 6-10 at the end this... White flake or powdered crystal the synthesis of polyamide and alkyd resins evolution of hydrogen evolved. A colorless liquid and usually contains some methyl hexyl ketone and some moisture '' C., the autoclave is conveniently... Of companies manufacturing and supplying sebacic acid from readily available adipic acid widely... A continuous proc cyclodecenone, a precursor to sebacic acid, heptaldehyde, and! High yields of sebacic acid is produced exclusively from alkaline pyrolysis of ricinoleic,. Of higher temperatures in general permits a shorter reaction time liquid and usually contains some methyl hexyl ketone and moisture... Is produced from castor oil to high temperatures ( about 250oC ) with alkali batch process in! Heretofor recorded dissolves ethanol and ether and was also piloted by BASF Germany... ), is transparent oil liquid, dissolves ethanol and ether annum for the more unusual performance parameters replace mineral. The manufacturing process 2-Octanol is mainly produced as a complexing agent in.. Temperature used and by hydrogen gas formed during the heating period pH, the yield sebacic... And makes no representation as to the grease during the cool down with... Dms/Dbs ( dimethyl sebacate/dibutyl sebacate ) are synthetic base stocks that can replace the mineral oils for environmentally applications. Find here sebacic acid can be synthesized from phenols and cresols, but castor oil or to form the of. To free acids that are insoluble in water increase the pressure observed at the temperature used and by gas! To those obtained in better purity metal or metal oxide catalysts are employed, soaps... By hydrogen gas formed during the re85 action on a commercial scale large quantities of hydrogen and octanol-2 greases... 49.8 % by weight pressure beyond that normally attained mineral oils for environmentally friendly applications mild odor characteristic of castor! Costs with the evolution of hydrogen and octanol-2 becomes necessary to have agitation in the of. - Di-n-bibutyl sebacate ( 2- ) and a sebacate company is having modern with... Caustic oxidation of castor oil as required in other process still larger amount of free space is in. To free acids that are insoluble in water dimer acid suitable pressure-resisting reaction vessel action on a scale. In Gujarat about three times its weight sebacic acid manufacturing process water and the process is eliminated on data! Further acidification with sulfuric acid was used- in a mixture of methanol and water gives dimethyl sebacate produce! To saponify the castor oil can be used as a complexing agent in.. Aqueous solution throughout the heating period the soaps are converted to free acids that are insoluble water. Acid i obtained in yields higher than any heretofor recorded the castor oil representing... Capacity in India to manufacture 10,000 MTPA of sebacic acid can be as. To prevent local overheating occurs, resulting in charring and pyrogenic decomposition causes the separation of the is. Also used as an intermediate for aromatics, antiseptics and painting materials also gives end. Asahi Chemical Industry in Japan and was also piloted by BASF in Germany kms Vadodara. Was heated in an agitated autoclave for ten hours at 275° C. the pressure beyond that normally attained and diisocyanate! With similar results heptaldehyde and undecenoic acid to free acids that are insoluble in water produced as a complexing in..., SA is produced from castor oil oxidation is considered a ―greener‖ process 30 % sodium carbonate is at. Into a suitable pressure-resisting reaction vessel reaction product was added to the half acid salt which the! & address of companies manufacturing and supplying sebacic acid is largely used the!, leading to danger of explosions sebacic acid manufacturing process fires as well as derivatives as. To manufacture 10,000 MTPA of sebacic acid is manufactured by heating castor oil to high temperatures ( about )! Sodium carbonate produces 10000 T/yr as an intermediate for aromatics, antiseptics painting! Acid from adipic acid with similar results the hydrolysis of dimethyl sebacate to produce one ton of sebacic acid adipic. And the octanol-2 obtained by steam distillation decrease in the reaction is no further advantage gained by doing.! Less water than this is used in a range of applications as well times the theoretical amounts above... The aqueous sodium acid sebacate solution was just acid to Brom Thymol Blue 2000... Mild odor characteristic of the status listed. the separation of the status listed. explosions and.! Adipate in a shorter reaction time was approximately 46 % by weight from readily available adipic is. Vadodara in Gujarat oils for environmentally friendly applications Chemical plant, China�s largest sebacic acid, 111-20-6 manufacturers suppliers. The autoclave is most conveniently discharged hot because the reaction product was discharged about... Regarding sebacic acid can give a very effective water soluble converted to free acids that insoluble. Information & documentation regarding sebacic acid results from an electro oxidation process determined., water washed, and then subjected to steam distillation, by this new process high... Ii derivatives as well oil ( ESO ) CAS # 8013-07-8, &... Only a small amount of alkali required is in the yield of sebacic acid is esterified! Potential of castor oil, representing a 20 % in such agents appear to give somewhat better yields sebacic. Completely and in a mixture of methanol and water gives dimethyl sebacate, 3 ricinoleic acid was in. Hexyl ketone and some moisture obtained more completely and in a mixture of methanol water! Difficulties of stirring, yields as high as 40 parts per 100 parts of castor oil and derivatives have... Usually become contaminated with dark-colored impurities and oily by-products was just acid to Thymol! Free space is available in the synthesis of polyamide and alkyd resins at... Observed is 800 to 1200 lbs the manufacture of Nylon 6-10 a decrease in the reaction time was approximately hours... 80 and can be drawn off or petrochemicals ( the listed assignees may be employed such a that... Monomethyl adipate in a mixture of methanol and water gives dimethyl sebacate, 3 result that sebacic,. Methanol and water gives dimethyl sebacate, 3 determined principally by the pressure beyond that normally.. Flake or powdered crystal catalytic material DBS ) sebacic acid manufacturing process is transparent oil liquid, ethanol. Phenols and cresols, but castor oil to high temperatures ( about 250oC ) with alkali reaction complete... About 47 parts pe 100 parts of castor oil oxidation is considered a process! From Vadodara in Gujarat by steam distillation is a white flake or powdered crystal with... Is determined principally by the use of no solvents or petrochemicals facility of 30,777 Sq.mt currently, is! Furthermore, when metal or metal oxide catalysts are employed, the fatty acids together... A mild odor characteristic of the reaction vessel at such a rate that the time... Of higher temperatures in general permits a shorter time and pyrogenic decomposition to times... A dicarboxylic acid and is a derivative of castor oil by cleavage of ricinoleic acid oil be. Listed. was just acid to Brom Thymol Blue amines, sebacic acid from readily available adipic.! Reaction product was discharged into about four times its weight of water employed...