WO2014072641A1 - Extraction selective d'un acide omega-fonctionnalise apres coupure oxydante d'un acide gras insature et derives - Google Patents
Extraction selective d'un acide omega-fonctionnalise apres coupure oxydante d'un acide gras insature et derives Download PDFInfo
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- WO2014072641A1 WO2014072641A1 PCT/FR2013/052657 FR2013052657W WO2014072641A1 WO 2014072641 A1 WO2014072641 A1 WO 2014072641A1 FR 2013052657 W FR2013052657 W FR 2013052657W WO 2014072641 A1 WO2014072641 A1 WO 2014072641A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C253/00—Preparation of carboxylic acid nitriles
- C07C253/32—Separation; Purification; Stabilisation; Use of additives
- C07C253/34—Separation; Purification
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/34—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with ozone; by hydrolysis of ozonides
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/42—Separation; Purification; Stabilisation; Use of additives
- C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
Definitions
- the object of the present invention relates to a process for the selective extraction of an omega-functionalized (or indicated ⁇ -functionalised) aliphatic acid C 6 -C 5 , carrier in the ⁇ position of an acid function or ester or nitrile respectively as a diacid, acid ester or acid nitrile (or cyano acid) from a reaction mixture obtained in particular after oxidative cleavage of an unsaturated fatty acid or its ester derivative including (natural oil) or its nitrile derivative, of renewable origin of industrial quality, using as a selective extraction solvent a specific mixture based on water and at least one carboxylic acid in CrC 4 , more particularly in CrC 3 , in specific proportions of water and acid.
- a selective extraction solvent a specific mixture based on water and at least one carboxylic acid in CrC 4 , more particularly in CrC 3 , in specific proportions of water and acid.
- the invention relates to the use of said extraction process in a process for the preparation of monomers ⁇ - ⁇ -diacids, ⁇ -ester acids or co-amino acids suitable in particular for the manufacture of polyamides.
- Natural oils and derivatives used for oxidative cleavage are of limited purity. More particularly, the purity of said unsaturated fatty acid or its ester or nitrile derivative does not exceed 95%, preferably does not exceed 90% and more preferably ranges from 40 to 90% by weight.
- the industrial grade oils used are Refined Bleeched Deodorized (RBD) oils-Refined-Bleached-Deodorized. These treatments are intended to remove impurities present at the end of the seed pressure step, see solvent extraction. Some of these impurities are light fatty acids, natural pigments present in seeds, gums, phospholipids, etc.
- reaction byproducts which include residual unreacted starting materials, after an oxidative cleavage reaction and having corresponding molecular weights and / or boiling points, at least as high as corresponding characteristics of the acide-functional acid reaction product to be separated / purified. It is obvious that the problem arises for all the unreacted or non-reactive residual byproducts or products which are heavier and those very close to the said workshop-functional acid product, so that separation by distillation remains difficult, on the one hand, high boiling points of the products to be separated, which implies a risk of thermal degradation at high temperature (boiling range) and secondly, because several by-products have boiling points very close and it is therefore difficult to separate them by this route.
- the separation of the products obtained by the oxidative cleavage of a fatty acid or a fatty nitrile is a key step.
- the fatty acids CX: Y with X corresponding to the chain length and Y corresponding to the number of unsaturations.
- the double bond may be in cis or trans conformation. It is possible to add delta-Z or omega-W names, where Z denotes the place of the double bond on the chain by counting from the acid group and W denoting the position from the other end of the chain.
- saturated fatty chains C14: 0, 16: 0, 18: 0 and 20: 0 according to the designation CX: Y
- CX: Y saturated fatty chains
- the boiling points of nitrile-acids and saturated nitriles in the case of cutting nitrile or diacids and saturated acids in the case of acid cutting are very close, although of different chain length.
- the 9-carbon diacid has a boiling point close to C 16: 0 palmitic acid and stearic acid.
- GB 1 177154 describes, in Example 15, the use of a mixture of acetic acid / water (88.9 / 1 1, 1) as a hydrogenation solvent for 1 1 -cyano-undecanoic acid for obtaining 12-amino-dodecanoic acid.
- this document describes the use of acetic acid as a suitable solvent for the hydrogenation of this compound.
- the problem described in this document is related to the hydrogenation of 11-cyano-undecanoic acid and does not concern the selective separation of this acid from a multitude of formed by-products (saturated and unsaturated) following an oxidative cleavage. unsaturated fatty acid nitrile, as is the case in the present invention.
- a mixture of acetic acid / water (88.9 / 1 1, 1 by volume) does not allow the separation of the target cyano acid from a saturated nitrile.
- US 4,165,328 discloses a process for the separation-recovery of 11-cyano-undecanoic acid with a degree of purity of between 75 and 95% by weight from a mixture containing cyclohexanone and ⁇ -caprolactam, this mixture being derived from the pyrolysis between 300 and 1000 ° C of 1,1'-peroxydicyclohexylamine.
- the mixture is first treated with a mixture of aqueous ammonia solution and a solvent among benzene, xylene or toluene, with passage in the organic phase of cyclohexanone and in the aqueous phase the ammonium salt of the 1-cyano-undecanoic acid.
- the 11-cyano-undecanoic acid is recovered after acidification of this phase at 40-100 ° C., first in the crude and molten state, and then washed with hot water in order to eliminate ⁇ -caprolactam.
- This process remains specific to obtaining this acid-nitrile from a specific raw material and specific conditions, which do not apply to the problem posed in the case of the oxidative cleavage of an unsaturated fatty acid or an ester or nitrile derivative of this fatty acid.
- This process generates as a by-product, 1 mole of salt per mole of cyano acid, salt that is necessary, either to eliminate / reprocess as waste, or to reprocess / recover as usable material. This process therefore requires additional steps of treatment of this by-product and as such, it is therefore neither practical nor flexible.
- GB 1049229 describes the preparation of an aliphatic carboxylic acid co-cyano from the ammoniation of the corresponding ⁇ - ⁇ -diacid, for example obtaining (according to Example 1) 9-cyano-nonanoic acid from the Dioxide diacid 1, 10-decane dioic treated with urea, with as by-products to separate the corresponding dinitrile and ⁇ -cyanocarboxamide corresponding to the starting diacid. Dissolution in a dilute aqueous solution of ammonia and extraction with a water-immiscible solvent such as ether makes it possible to extract neutral products such as dinitrile and the cyano-carboxamide compound, cyano-carboxylates and dicarboxylates. .
- No. 3,994,942 discloses a process for recrystallizing 1,1-cyano-undecanoic acid in a solvent which is a mixture of acetic acid / water or propionic acid / water, but does not teach or describe this solvent as a solvent for selective liquid-liquid extraction.
- No. 2,468,436 discloses a process for the preparation of a co-cyano-carboxylic acid such as 8-cyanooctanoic acid prepared by oxidation of oleonitrile with a solution of chromic acid and concentrated sulfuric acid with the reaction mixture. extracted with petroleum ether which separates pelargonic acid as a by-product acid, unreacted nitriles, including saturated nitriles present initially in the used oleonitrile.
- the insoluble residue in petroleum ether contains 8-cyanooctanoic acid, which can be purified by conversion into a barium salt and dissolved in a barium chloride excess with filtration of the impurities before conversion in acid form with sulfuric acid.
- the solution proposed by the present invention overcomes the drawbacks of the methods known from the state of the art, with a specific and selective method for extracting said co-functionalized acid from the reaction mixture, in particular resulting from an oxidative cleavage.
- unsaturated fatty acid or its ester (including oil) or unsaturated fatty acid nitrile said process being based on the use of a specific extraction solvent composition.
- the main object of the invention relates firstly to said specific process for extracting a co-functionalized acid from a reaction mixture resulting from an oxidative cleavage, then a process for producing said acid or its derivative (Amino acid case from acid nitrile), comprising the use of said selective separation process and finally the use of the specific composition of the selective extraction solvent in such a process for extracting or manufacturing said acid , in particular for the preparation of ⁇ - ⁇ acid functional monomers amino acids, diacids or acidic esters.
- the first object of the invention relates to a process for selective separation of a reaction product from the reaction mixture and with respect to unreacted or unreacted residual reaction by-products and starting materials.
- said reaction product is at least one co-functionalized acid, in particular selected from diacids, ester-acids or nitrile-acids and having from 6 to 15 carbon atoms,
- said product is derived from an oxidative cleavage reaction of at least one unsaturated fatty acid, including hydroxylated acid or its ester derivative, including polyol monoester or multi-ester, including glycerol or its derivative nitrile
- said process comprises at least one step and, more particularly, several successive steps of selective extraction of said co-functional acid product with a selective extraction solvent, which is a composition comprising a mixture of water and at least one a carboxylic acid having 1 to 4 carbon atoms (or C l -C 4) or mixtures thereof, preferably 1 to 3 carbon atoms or mixtures thereof and, more preferably, said acid is acetic acid or formic acid or their mixture, more particularly the mixture of formic acid and acetic acid and in a water / acid ratio such that at the extraction temperature, the mixture of said reaction mixture with said extraction solvent is biphasic, said product reaction, acide-functional acid being selectively concentrated in the aqueous extraction phase and said unreacted or unreactive residual reaction byproducts and starting materials being centered in the organic phase at each extraction step,
- a selective extraction solvent which is a composition comprising a mixture of water and at least one a carboxylic acid having 1 to 4 carbon atoms (or C l -C 4) or
- said process comprises the treatment of said aqueous extraction phase, possibly accumulated over several extractions with removal by evaporation of said extraction solvent, water and acid and recovery of said product with the dry extract thus obtained (recovery of said product under form of dry extract obtained), optionally, said product can be recovered by counter-extraction liquid- liquid from said aqueous phase with a solvent of said product and immiscible with said aqueous phase.
- This optional variant has an energy advantage, that is to say with less energy consumed for this recovery variant, with respect to the removal of water and of said carboxylic acid by evaporation in said aqueous extraction phase.
- the composition of said extraction solvent may vary and be adjusted depending on the temperature of the extraction, for a given mixture of water-carboxylic acid.
- the composition may also vary according to the carboxylic acid used and also according to the desired yield / selectivity compromise. More particularly, the shorter the carboxylic acid, from C 4 to C 1, the better the extraction selectivity and the longer it is from C 1 to C 4 , the more the yield or extraction rate is improved.
- said extraction may take place at a temperature ranging from the melting point and up to the boiling point of said water / carboxylic acid mixture, preferably from 15 to 70 ° C. and more preferably from 15 to 70 ° C. 50 ° C.
- the increase in temperature tends to decrease the selectivity and therefore for a given water-acid ratio, the lower temperature favors the extraction selectivity.
- the organic phase to be extracted remains liquid.
- Different cascading and continuous extraction stages can be envisaged with extraction solvent mixtures and temperatures that can vary (gradient of extraction solvent composition and / or temperature, from one stage to another with a recycling of the residual streams to other stages adapted to their composition, these gradients being adapted to the starting compositions to be extracted (nature and rate of products to be extracted in these compositions)).
- the temperature of said extraction step c) and said water / acid ratio are chosen such that, during this extraction step, the mixture of the water / acid composition with the reaction mixture (organic reaction phase ) comprising said product to be separated is biphasic with an aqueous phase (water-acid) selectively containing, for the most part, said product to be separated and a non-aqueous phase containing the remainder of the organic phase.
- the water / carboxylic acid weight ratio in said extraction solvent of said extraction step c) may also vary depending on the extraction temperature. used and acid (nature of the acid), from 32/68 to 95/5 and preferably from 38/62 to 85/15.
- said extraction according to the process of the invention takes place at room temperature, which means 20 ⁇ 5 ° C.
- said extraction step c) comprises several successive washes-extractions of said non-aqueous (organic) phase by said water / acid composition, with recovery and mixing of all the aqueous phases thus obtained before said treatment d) for recovering said co-functional acid product.
- the extractions can be carried out with the same proportions by weight between the extraction solvent and the reaction mixture to be extracted, but preferably the ratio by weight between the extraction solvent and the weight of the reaction mixture to be extracted varies within a range of from 0.5 / 1 to 100/1, more preferably from 0.5 / 1 to 50/1. More particularly, this ratio is decreased with the number of successive extractions, in order to improve the extraction selectivity of the targeted product.
- the initial ratio between the acid-nitrile to be extracted and the other saturated nitriles can go from about 1 initially to more than 300 after said selective extraction.
- said selective separation process is an integral part of the process for manufacturing said co-functionalized acid product.
- p is an integer equal to 1, 2 or 3 and
- X is chosen from: -C0 2 H (fatty monoacid) or -CN (nitrile) or -CO 2 R '(monoester) with R' being a C 1 -C alkyl, the alkyl being linear or branched when possible, that is to say from C 4 ,
- X is a triester ⁇ (00 2 ) 3 - ⁇ , with Z being the remainder (trivalent radical without OH) of glycerol (case of fatty acid oil)
- R1 is an H or an alkyl radical of 1 to 1 1 carbon atoms, optionally containing an OH function,
- q: is equal to 0 or 1
- n is equal to 0, 1 or 2
- r is an integer ranging from 4 to 15,
- said unsaturated starting material of formula (I) is chosen from a fatty acid or a fatty acid ester, preferably from oleic acid, oleic oil or a monoester of the formula. oleic acid and more preferably oleic acid.
- said unsaturated starting material (I) is a nitrile, preferably oleonitrile or octadec nitrile 11 -eneoic and octadec-12-eneone nitrile or mixtures thereof, synthesized from 1 ricinoleic acid after hydrogenation followed by dehydration.
- Said nitrile according to (I) is in particular the product of ammoniation (reaction with ammonia) of the corresponding fatty acid or an ester of said fatty acid and in particular of the corresponding oil.
- Said oxidative cleavage reaction step is preferably carried out using Oxygen and / or Ozone, and in particular hydrogen peroxide, as oxidation agent with oxygenated water.
- said unsaturated starting product (I) is oleonitrile and said oxidative cleavage reaction product is 8-cyanooctanoic acid.
- said unsaturated starting material (I) is the nitrile of gondoic acid (eicos-1-eneic acid). or vaccenic acid (octadec-1-enoic acid) and the oxidative cleavage reaction product thus obtained is 10-cyano-decanoic acid.
- reaction by-products and / or unreacted or unreactive residual starting materials may comprise in particular:
- the residual unsaturated starting material of the diol or epoxidized derivatives of said unsaturated starting material formed by oxidative modification other than oxidative cleavage of the ethylenic unsaturation of said unsaturated starting material
- Said method for producing a co-functionalized acid preferably relates to the manufacture of an ⁇ - ⁇ diacid, an acid co-ester or a co-amino acid as a derivative of a co-cyano acid, comprising from 6 to 15 carbon atoms, said manufacturing method using a selective separation process, as defined above according to the invention for the selective separation of said ⁇ - ⁇ diacid, acidic co-ester and co-ester cyanoacid.
- Such a more preferred process concerns the preparation of a co-amino acid containing from 6 to 15 carbon atoms obtained from its precursor co-cyanoacid (or acid nitrile), said precursor being obtained by a process such that defined according to the invention above, in particular by the oxidative cleavage of a nitrile derivative of an unsaturated fatty acid, preferably comprising at least 10 carbon atoms and more preferably at least 16 carbon atoms, as defined herein. and according to the formula (I) cited above, with said manufacturing process comprising an additional step of hydrogenation of said precursor-cyano-acid to obtain said amino acid.
- said co-cyano acid is 8-cyanooctanoic acid and said co-amino acid derivative is 9-amino-nonanoic acid or said cyano acid is 10-cyano-decanoic acid and said amino acid derivative is 11-amino-undecanoic acid or said cyano acid is 11-cyano-undecanoic acid and said amino acid is 12-amino dodecanoic acid or said cyano acid is 12-cyano acid -dodecanoic acid and said amino acid is 13-amino tridecanoic acid.
- the 10-cyano-decanoic and 11-undecanoic acids can be obtained in a C 11 C 12 mixture after the oxidative cleavage of the 12-hydroxy stearic hydroxylated fatty acid or 12HSA (obtained by hydrogenation of ricinoleic acid) subjected to (12HSA) to dehydration with formation of Cn (between Cn and Ci 2 ) or Ci 2 (between C12 and Ci 3 ) unsaturation.
- the present invention also covers the use of a composition
- a composition comprising a water / carboxylic acid mixture chosen from at least one organic acid having from 1 to 4 carbon atoms. or mixtures thereof, preferably formic acid and / or acetic acid and / or propionic acid or mixtures thereof, and more preferably formic or acetic or propionic acid or mixtures thereof, more preferably acetic acid or formic acid or mixtures thereof, in particular the formic acid and acetic acid mixture, as a selective extraction and separation-purification solvent of at least one reaction product chosen from an ⁇ - ⁇ diacid, a ⁇ -ester-acid, co-cyanoacid (or nitrile-acid), having from 6 to 15 carbon atoms, from a reaction mixture comprising reaction by-products and / or unreacted residual or unreactive residual products heavier reaction mixture resulting from an oxidative cleavage reaction of an ethylenically unsaturated starting material selected from at least one unsaturated
- the water / carboxylic acid ratio can vary, depending on the extraction temperature and the carboxylic acid used, from 32/68 to 95/5 and preferably from 38/62 to 85 / 15.
- This use is of particular interest when said reaction product is 8-cyanooctanoic acid obtained from the oxidative cleavage of the oleonitrile or when said reaction product is azelaic acid (nonanedioic acid) obtained at from the oxidative cleavage of oleic acid or said product is the monoester of azelaic acid and obtained from an oleic acid ester or when said product is 10-cyano-decanoic acid and obtained from the oxidative cleavage of the nitrile of the gondoic acid and / or from the nitrile of the vaccenic acid.
- This process is of particular interest in the preparation of diacid or amino acid monomers for polyamides and more particularly in the preparation of 9-amino-nonanoic acid for the preparation of polyamide PA 9 or in the preparation of the acid 1 amino-undecanoic acid for the preparation of polyamide PA 11 or in the preparation of 12-amino-dodecanoic acid for the preparation of polyamide PA 12 or in the
- the present invention also relates to the use of the process as defined above according to the invention in the preparation of the 9-amino-acid.
- said selective separation process according to the invention can be part of a process for the preparation of amino acid monomers in a process for the preparation of polyamides, in particular PA 9, PA 1 1, PA 12 and PA 13.
- 13-Amino tridecanoic acid can be obtained from 12-cyano-dodecanoic acid, the latter as a product of the oxidative cleavage of the erucic nitrile (13-eneic doeicos) and selective extraction according to the method of the present invention.
- the water used in the mixture for the extraction solvent is demineralised water.
- Table 1b reaction mixtures to extract
- the reaction mixture R1 used is a solution having a composition as shown in Table 2 below (according to analysis by gas chromatography).
- the cleavage was carried out in a batch reactor at 80 ° C. for 24 h using tungstic acid as catalyst and an aqueous solution of water oxygenated (70% by weight of H 2 O 2 ) to 63% by weight of pure H 2 0 2 relative to the (pure) oleonitrile. A flow of air passed through the reaction mixture.
- the starting mole ratio of 8-cyanooctanoic acid (A8CO) on ⁇ (sum) saturated nitriles (myristic nitrile + palmitic nitrile + stearic nitrile + arachidic nitrile) is (A8CO) / ⁇ saturated nitriles 3,4 .
- the reaction mixture used corresponds to that obtained after washing with water.
- R1 solution For extraction, about 2 g of R1 solution was contacted in a separatory funnel with about 20 g of a solution of a preformed mixture of carboxylic acid / water at the indicated temperature. Both solutions were mixed vigorously for about 1-2 minutes. After more than 30 minutes, the aqueous phase was separated, the carboxylic acid and water evaporated under vacuum ⁇ 1 mbar, 40 ° C and the remaining product was analyzed by gas chromatography. For the two carboxylic acid tests, the acids were premixed (50/50 weight ratio) and then mixed with water to form the extraction solvent composition.
- the solution of the oxidative cleavage is soluble in the carboxylic acid.
- water was added as it went. After stirring in a separatory funnel, the ampoule was allowed to stand for at least 5 minutes. The presence of a meniscus after 5 minutes was used to determine the minimum water / carboxylic acid ratio as shown in Table 3 below.
- Carboxylic acid Quantity Amount of water Temperature Formation of an acid (% wt) (° C) meniscus carboxylic acid
- Table 4 shows that 8-cyanooctanoic acid (A8CO) is preferentially extracted from saturated nitriles.
- A8CO 8-cyanooctanoic acid
- Table 4 shows that 8-cyanooctanoic acid (A8CO) is preferentially extracted from saturated nitriles.
- the molar ratio A8CO / t increases its nitrile in the aqueous phase extracted with said water-acid mixture.
- the selectivity decreases with the chain length of the carboxylic acid. The selectivity decreases as the extraction temperature increases.
- the amount extracted increases with the chain length of the carboxylic acid. Adding water to the carboxylic acid reduces the amount extracted, that is, increasing the water / acid ratio decreases this amount or extraction yield.
- the oxidative cleavage reaction of oleic acid is carried out in a manner similar to that for the oxidative cleavage of oleonitrile (substitution with oleic acid).
- the oleic acid used is Oleon at 75% purity. The reaction takes place at 70 ° C without air flow and with 144% pure H 2 0 2 relative to pure oleic acid.
- Table 5 gives the composition of the oleic acid cleavage solution and its extract with acetic acid (AA) / water 58/42 (weight ratio). Table 5: Composition before extraction in reaction mixture R2 and
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Abstract
Description
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Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP13795840.1A EP2917176A1 (fr) | 2012-11-09 | 2013-11-07 | Extraction selective d'un acide omega-fonctionnalise apres coupure oxydante d'un acide gras insature et derives |
| CN201380058815.9A CN104797552A (zh) | 2012-11-09 | 2013-11-07 | 在氧化裂解不饱和脂肪酸和衍生物之后ω-官能化酸的选择性提取 |
| US14/441,701 US20150299107A1 (en) | 2012-11-09 | 2013-11-07 | Selective extraction of an omega-functionalized acid after oxidative cleavage of an unsaturated fatty acid and derivatives |
| BR112015009442A BR112015009442A2 (pt) | 2012-11-09 | 2013-11-07 | extração seletiva de um ácido ômega-funcionalizado após clivagem oxidativa de um ácido graxo insaturado e derivados |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1260643 | 2012-11-09 | ||
| FR1260643A FR2997949A1 (fr) | 2012-11-09 | 2012-11-09 | Extraction selective d’un acide omega-fonctionnalise apres coupure oxydante d’un acide gras insature et derives |
| FR1261611 | 2012-12-04 | ||
| FR1261611A FR2997950A1 (fr) | 2012-11-09 | 2012-12-04 | Extraction selective d'un acide omega-fonctionnalise apres coupure oxydante d'un acide gras insature et derives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014072641A1 true WO2014072641A1 (fr) | 2014-05-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2013/052657 Ceased WO2014072641A1 (fr) | 2012-11-09 | 2013-11-07 | Extraction selective d'un acide omega-fonctionnalise apres coupure oxydante d'un acide gras insature et derives |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20150299107A1 (fr) |
| EP (1) | EP2917176A1 (fr) |
| CN (1) | CN104797552A (fr) |
| BR (1) | BR112015009442A2 (fr) |
| FR (2) | FR2997949A1 (fr) |
| WO (1) | WO2014072641A1 (fr) |
Families Citing this family (2)
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| CN107445864B (zh) * | 2017-08-09 | 2020-01-17 | 无锡殷达尼龙有限公司 | 一种纯化长碳链氰基酸产物的方法 |
| CN111013646B (zh) * | 2018-10-09 | 2023-01-13 | 中国石油化工股份有限公司 | 制备壬醛和壬醛酸或者壬醛和壬醛酸甲酯的方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468436A (en) | 1944-10-24 | 1949-04-26 | Emery Industries Inc | Method of producing carboxylic aliphatic nitriles |
| GB1049229A (en) | 1963-11-22 | 1966-11-23 | Inventa Ag | Process for the preparation of aliphatic ªÏ-cyanocarboxylic acids |
| GB1177154A (en) | 1967-07-18 | 1970-01-07 | Bp Chem Int Ltd | Production of 12-Aminododecanoic Acid or Alkali Metal Salts thereof |
| US3994942A (en) | 1974-02-08 | 1976-11-30 | Ube Industries, Ltd. | Method for purifying 11-cyano-undecanoic acid |
| US4165328A (en) | 1977-05-04 | 1979-08-21 | Ube Industries, Ltd. | Process for separating 11-cyanoundecanoic acid, cyclohexanone and ε- |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030032825A1 (en) * | 1995-05-26 | 2003-02-13 | Dennis G Gaige | Method for purifying azelaic acid |
| CN1239459C (zh) * | 2004-09-15 | 2006-02-01 | 中国科学院新疆理化技术研究所 | 一种用微波裂解臭氧化反应产物制备壬二酸的方法 |
| CN101250101B (zh) * | 2008-03-31 | 2010-09-15 | 四川西普化工股份有限公司 | 一种壬二酸的分离纯化方法 |
| CN102344358B (zh) * | 2011-07-25 | 2015-07-15 | 中国科学院成都生物研究所 | 一种以桐油为原料制备c2~c11有机酸的方法 |
-
2012
- 2012-11-09 FR FR1260643A patent/FR2997949A1/fr active Pending
- 2012-12-04 FR FR1261611A patent/FR2997950A1/fr active Pending
-
2013
- 2013-11-07 WO PCT/FR2013/052657 patent/WO2014072641A1/fr not_active Ceased
- 2013-11-07 BR BR112015009442A patent/BR112015009442A2/pt not_active IP Right Cessation
- 2013-11-07 US US14/441,701 patent/US20150299107A1/en not_active Abandoned
- 2013-11-07 EP EP13795840.1A patent/EP2917176A1/fr not_active Withdrawn
- 2013-11-07 CN CN201380058815.9A patent/CN104797552A/zh active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2468436A (en) | 1944-10-24 | 1949-04-26 | Emery Industries Inc | Method of producing carboxylic aliphatic nitriles |
| GB1049229A (en) | 1963-11-22 | 1966-11-23 | Inventa Ag | Process for the preparation of aliphatic ªÏ-cyanocarboxylic acids |
| GB1177154A (en) | 1967-07-18 | 1970-01-07 | Bp Chem Int Ltd | Production of 12-Aminododecanoic Acid or Alkali Metal Salts thereof |
| US3994942A (en) | 1974-02-08 | 1976-11-30 | Ube Industries, Ltd. | Method for purifying 11-cyano-undecanoic acid |
| US4165328A (en) | 1977-05-04 | 1979-08-21 | Ube Industries, Ltd. | Process for separating 11-cyanoundecanoic acid, cyclohexanone and ε- |
Non-Patent Citations (3)
| Title |
|---|
| ACKMAN ET AL.: "Ozonolysis of unsaturated fatty acids 1. ozonolysis of oleic acid", CAN. J. CHEM, vol. 39, 1961, pages 1956 - 1962 |
| ACKMAN R G ET AL: "Ozonolysis of unsaturated fatty acids. I. Ozonolysis of oleic acid", GAN TO KAGAKU RYOHO - JAPANESE JOURNAL OF CANCER AND CHEMOTHERAPY, GAN TO KAGAKU RYOHO, TOKYO, JP, vol. 39, 20 March 1961 (1961-03-20), pages 1956 - 1963, XP008123600, ISSN: 0385-0684 * |
| PERKINS ET AL., JACS, vol. 52, 1975, pages 473 |
Also Published As
| Publication number | Publication date |
|---|---|
| BR112015009442A2 (pt) | 2017-07-04 |
| FR2997950A1 (fr) | 2014-05-16 |
| CN104797552A (zh) | 2015-07-22 |
| US20150299107A1 (en) | 2015-10-22 |
| FR2997949A1 (fr) | 2014-05-16 |
| EP2917176A1 (fr) | 2015-09-16 |
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