WO1998024547A1 - Verfahren zur wiedergewinnung von bei der herstellung von n-acyl-alpha-aminosäurederivaten durch amidocarbonylierung eingesetzten cobaltcarbonylkatalysatoren - Google Patents
Verfahren zur wiedergewinnung von bei der herstellung von n-acyl-alpha-aminosäurederivaten durch amidocarbonylierung eingesetzten cobaltcarbonylkatalysatoren Download PDFInfo
- Publication number
- WO1998024547A1 WO1998024547A1 PCT/EP1997/006707 EP9706707W WO9824547A1 WO 1998024547 A1 WO1998024547 A1 WO 1998024547A1 EP 9706707 W EP9706707 W EP 9706707W WO 9824547 A1 WO9824547 A1 WO 9824547A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cobalt
- acyl
- amino acid
- alpha
- salt
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/20—Carbonyls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/40—Regeneration or reactivation
- B01J31/4015—Regeneration or reactivation of catalysts containing metals
- B01J31/4023—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper
- B01J31/403—Regeneration or reactivation of catalysts containing metals containing iron group metals, noble metals or copper containing iron group metals or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2231/00—Catalytic reactions performed with catalysts classified in B01J31/00
- B01J2231/30—Addition reactions at carbon centres, i.e. to either C-C or C-X multiple bonds
- B01J2231/34—Other additions, e.g. Monsanto-type carbonylations, addition to 1,2-C=X or 1,2-C-X triplebonds, additions to 1,4-C=C-C=X or 1,4-C=-C-X triple bonds with X, e.g. O, S, NH/N
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/80—Complexes comprising metals of Group VIII as the central metal
- B01J2531/84—Metals of the iron group
- B01J2531/845—Cobalt
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
- B01J31/04—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing carboxylic acids or their salts
Definitions
- Amidocarbonylation means the carbonylation of carboxamides in the presence of aldehydes and carbon monoxide or synthesis gas to give N-acyl-alpha-amino acid derivatives. This reaction is carried out in the presence of cobalt carbonyl compounds as homogeneous catalysts.
- fatty acid amides as the amide component and formaldehyde as the aldehyde component
- the substance class of N-acylsarcosines which are used industrially as surfactants, soaps and emulsifiers, can be developed with this process.
- a catalyst cycle i.e. a process for separating the catalyst used, dissolved in the reaction medium, from the product produced, its reprocessing and recycling into the manufacturing process.
- Japanese Patent Laid-Open Nos. 54-112816 and 58-198441 disclose processes for the preparation of dialkylmalonic esters by esterifying alkyl monohaloacetic acid with a lower aliphatic alcohol and carbon monoxide in the presence of a cobalt carbonyl catalyst and a basic one Connection. Following this esterification, the catalyst is decomposed by adding an aqueous solution of an inorganic acid, for example sulfuric acid, or by adding sulfuric acid and oxygen to a divalent water-soluble cobalt salt. In the aqueous phase thus obtained, separated from the organic phase, the water-soluble cobalt salt is precipitated as water-insoluble cobalt hydroxide by adding alkali metal hydroxide, for example sodium hydroxide.
- an inorganic acid for example sulfuric acid
- a divalent water-soluble cobalt salt is precipitated as water-insoluble cobalt hydroxide by adding alkali metal hydroxide, for example sodium hydroxide.
- the cobalt hydroxide is finally converted into the corresponding cobalt carbonyl compound by treatment with carbon monoxide or carbon monoxide / hydrogen in the presence of an organic solvent, for example an aromatic hydrocarbon or an alcohol suitable for the esterification.
- an organic solvent for example an aromatic hydrocarbon or an alcohol suitable for the esterification.
- the cobalt carbonyl catalyst obtained in this way is used again for the esterification.
- Japanese Patent Application Laid-Open No. 57-183749 describes a process for the preparation of ⁇ -amino- ⁇ -hydroxybutanoic acid, in which, in a carbonylation step which initially takes place, the reaction of epichlorohydrin, carbon monoxide, a basic compound and an alcohol to give ⁇ -amino- ⁇ -hydroxybutanoic acid takes place.
- the cobalt carbonyl catalyst is decomposed by adding mineral acid, for example sulfuric acid, and oxygen to the reaction solution obtained in the previous process step to form a divalent water-soluble cobalt salt.
- the alcohol present in the reaction solution is removed and then a two-phase system is prepared by adding water, which is separated into an aqueous phase containing the water-soluble cobalt salt and an organic phase containing ⁇ -amino- ⁇ -hydroxybutanoic acid .
- the cobaite carbonyl catalyst is recovered by adding alkali metal hydroxide to the aqueous phase.
- the cobalt hydroxide precipitate formed is filtered off, washed and then dewatered.
- the cobalt carbonyl catalyst is recovered from cobalt hydroxide with carbon monoxide and hydrogen.
- EP-A-0 343 042 relates to a process for the preparation of dialkylmalonic acid esters by carbonylation of alkyl chloroacetate in the presence of a cobalt carbonyl catalyst.
- the cobaite carbonyl catalyst used is recovered in several process steps, a water-soluble cobalt salt being first prepared by adding acid.
- this cobalt salt is converted into the salt of a fatty acid, e.g. Oleic acid, palmitic acid or stearic acid.
- a fatty acid e.g. Oleic acid, palmitic acid or stearic acid.
- the cobalt precipitate obtained in this way must be carefully washed and dried in order to remove entrained salt residues.
- the pure cobalt hydroxide is then processed with N-acyl-alpha-amino acid derivative to give a melt, from which the cobalt carbonyl catalyst is obtained by reaction with carbon monoxide and hydrogen at elevated temperature and pressure.
- reaction products of the amidocarbonylation are not volatile and can therefore not be removed from the reaction solution by distillation. It is also not possible to remove the cobalt carbonyl catalysts which are volatile in pure form by distillation, since these are heated when the reaction solution is heated, i. in the presence of N-acyl- ⁇ -amino acid derivatives. It is also important to note that the cobalt carbonyl catalysts used for the amidocarbonylation are only partially present as active cobalt carbonyl catalysts after the reaction and that the process for recovery has to take into account a number of different cobalt carbonyl compounds.
- the cobalt carbonyl catalysts cannot be made from Co (II) salts, for example, because of the mild reaction conditions during the carbonylation stage of the amidocarbonylation Produce cobalt acetate, cobalt oxide and cobalt hydroxide, but must be prepared in an upstream process step in order to be used in the subsequent carbonylation step.
- the N-acyl-alpha-amino acid derivative cobalt salt is usually converted into the cobalt carbonyl catalyst at a temperature of 50 to 250 ° C. and a pressure of 20 to 250 bar.
- the cobalt carbonyl catalysts used in the amidocarbonylation in particular CO 2 (CO) 3 and HCo (CO) 4 can be recovered using the process according to the invention.
- the starting point for this process is the reaction solution present after the preparation of the N-acyl- ⁇ -amino acid derivative, in particular of the N-acyl sarcosine.
- the process according to the invention is particularly suitable for reaction solutions which are obtained in accordance with the process for the preparation of N-acyl- ⁇ -amino acid derivatives described in European Patent Application No. 95 106 329.6 (EP-A-0 680 948).
- aqueous hydrogen peroxide solution is added to this reaction solution, which on the one hand destroys the cobalt carbonyl-N-acyl-alpha-amino acid derivative complexes formed and on the other hand the cobalt present in the cobalt carbonyl compounds is oxidized to cobalt (II), which forms water-soluble salts .
- the amount of hydrogen peroxide solution to be added should advantageously be 0.1 to 5 equivalents, in particular 0.2 to 4 equivalents and particularly preferably 0.5 to 2 equivalents (H 2 O 2 , based on cobalt present in the reaction solution ).
- Suitable mineral acids are e.g. Sulfuric acid, phosphoric acid, hydrochloric acid, phosphorous acid and perchloric acid, with sulfuric acid, in particular dilute sulfuric acid, being particularly preferred.
- the aqueous, water-soluble Co (II) salt, such as cobalt (II) sulfate, obtained in the first process step is separated from the non-aqueous phase in which the product is present.
- the excess hydrogen peroxide is therefore precipitated as N- before the cobalt is precipitated.
- the removal is usually carried out by heating the aqueous phase, preferably to the boiling point.
- the aqueous phase can be neutralized with alkali metal hydroxide, preferably sodium and / or potassium hydroxide, before heating.
- alkali metal hydroxide preferably sodium and / or potassium hydroxide
- N-acyl-alpha-amino acid dehvate alkali metal salt preferably N-acyl sarcosinate alkali metal salt, the N-lauroylsarcosinate sodium and / or potassium salt are particularly preferred, cobalt obtained as a water-insoluble precipitate of the corresponding N-acyl-alpha-amino acid derivative cobalt salt.
- the N-acyl amino acid derivative alkali salt is preferably added in the form of a 30% by weight aqueous solution.
- the pH of the aqueous phase should preferably be about 7.
- the concentration of the water-soluble cobalt salt in the aqueous phase does not exceed 2% by weight.
- the water-insoluble N-acyl-alpha-amino acid derivative cobalt salt precipitate obtained is removed from the aqueous solution by conventional means, such as filtration Phase separated.
- the precipitate obtained by the process according to the invention generally contains less than 0.2% by weight of salt of the acid used, in the case of sulfuric acid sulfate salt. If necessary, the salt residues that may still be present can be removed by washing the precipitate with water without any significant removal of cobalt ions with the wash water. However, it has turned out to be advantageous for the process according to the invention if the N-acyl-alpha-amino acid derivative cobalt salt precipitate is largely free of other salts.
- the precipitate can be dried before further processing.
- the air-dried precipitate contains 3 moles of water per mole
- the air-dried N-acyl-alpha-amino acid derivative cobalt salt precipitate described above can optionally be further dried at 50 to 100 ° C. and 10 to 100 torr and the water content can thus be reduced to 1 mol of water per mol of cobalt. However, this drying is generally not necessary for the process according to the invention.
- the conversion of the N-acyl-alpha-amino acid derivative cobalt salt thus obtained into the cobalt carbonyl catalyst is preferably carried out in a polar aprotic solvent which can also be used as a solvent in the subsequent amidocarbonylation for which the cobalt carbonyl catalyst recovered by the process according to the invention is used .
- a polar aprotic solvent which can also be used as a solvent in the subsequent amidocarbonylation for which the cobalt carbonyl catalyst recovered by the process according to the invention is used .
- Tetrahydrofuran, glycol dimethyl ether, tertiary butyl methyl ether, diglycol dimethyl ether, dimethylformamide, dimethylacetamide, butyl acetate, acetonitrile and N-acyl sarcosines have proven to be particularly suitable.
- the composition of the carbon monoxide / hydrogen mixture is preferably 4: 1 to 1: 4.
- the cobalt carbonyl catalyst obtained in this way can be used without restriction for the amidocarbonylation.
- the optionally dried N-acyl-alpha-amino acid derivative cobalt salt can be mixed with further N-acyl-alpha-amino acid derivative before being transferred to the cobalt catalyst and processed to a melt with heating and stirring, this melt then being used is used as the starting material for the conversion to the cobalt catalyst.
- the molar ratio of N-acyl-alpha-amino acid derivative-cobalt salt to N-acyl-alpha-amino acid derivative is usually 1: 2-5, preferably 1: 2.5 - 4.
- a further advantage of the process according to the invention is that any cobalt residues remaining in the aqueous phase after the precipitation can optionally be recovered and processed, so that complete recycling is ensured.
- the remaining aqueous phase usually still contains 10 to 1000 ppm cobalt.
- These residues of cobalt can be separated off, for example, by filtration through an ion exchanger.
- the ion exchanger can be used until exhaustion.
- the cobalt-laden ion exchanger can be regenerated, for example, by washing with sodium sulfate solution, so that the ion exchanger is again ready for further cobalt separations.
- the wastewater containing cobalt sulfate and sodium sulfate obtained by the washing can be added to the reaction solution used for the first stage of the process according to the invention without impairing the process according to the invention.
- the following examples serve to illustrate the method according to the invention.
- the following examples relate to the recovery of cobalt carbonyl catalyst used in the production of lauroylsarcosine by amidocarbonylation, the following reaction solution obtained in the amidocarbonylation being used as the starting solution.
- reaction solution with a density of 0.818 kg / l had the following composition: 60% N-lauroylsarcosine (product), 39% solvent (tert-butyl methyl ether), 0.44% sulfuric acid, 0.13% cobalt, 0, 35% formaldehyde and approx. 0.04% methylamine.
- 300 ml of 32% hydrogen peroxide solution in water were added and the mixture was stirred at 50 ° C. for 30 minutes. After adding 15 l of water, the phases were separated and 12 l of water phase and 113 l of product phase were obtained.
- the water phase contained about 1% tert-butyl methyl ether, 0.98% cobalt, 2% formaldehyde, 1% methylammonium sulfate, about 2.5% sulfuric acid and an undetermined amount of hydrogen peroxide. 1 l of this water solution was used for each of the following examples.
- the precipitate is filtered off and washed with about 200 ml of water remove any sulfate residues that may be present.
- N-lauroyl sarcosinate cobalt salt obtained (260 g) is suspended in 260 g of N-lauroyl sarcosine (approx. 3 mol equivalents) and the viscous suspension is heated to 120 ° C. with stirring.
- the cobalt-containing melt is freed from the water present under reduced pressure (pressure: 50 mbar).
- MTBE methyl t-butyl ether
- the cobalt carbonyl formed can be used without restriction for the amidocarbonylation.
- N-lauroyl sarcosinate cobalt salt being obtained in the form of a light pink precipitate.
- the precipitate is filtered and washed with about 200 ml of water in order to remove any sulfate residues that may still be present.
- N-lauroyl sarcosinate cobalt salt (260 g) is dried at room temperature
- the cobalt carbonyl formed can be used without restriction for the amidocarbonylation.
- Example 3 The cobalt carbonyl formed can be used without restriction for the amidocarbonylation.
- N-lauroyl sarcosinate cobalt salt being obtained in the form of a light pink precipitate.
- the precipitate is filtered off and washed with about 200 ml of water in order to remove any sulfate residues that may still be present.
- Lauroyl sarcosinate cobalt salt (205 g) is dissolved in 500 ml MTBE and in
- the cobalt carbonyl formed can be used without restriction for the amidocarbonylation.
- the cobalt carbonyl formed can be used without restriction for the amidocarbonylation.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52518098A JP2001505126A (ja) | 1996-12-05 | 1997-12-01 | アミドカルボニル化によるn−アシル−アルファ−アミノ酸誘導体類の製造において使用されたコバルトカルボニル触媒類を回収するための方法 |
AU56574/98A AU5657498A (en) | 1996-12-05 | 1997-12-01 | Process for recovering cobalt carbonyl catalysts used to produce n-acyl-apha-aminoacid derivatives by amidocarbonylation |
EP97952835A EP0946298B1 (de) | 1996-12-05 | 1997-12-01 | Verfahren zur wiedergewinnung von bei der herstellung von n-acyl-alpha-aminosäurederivaten durch amidocarbonylierung eingesetzten cobaltcarbonylkatalysatoren |
DE59710479T DE59710479D1 (de) | 1996-12-05 | 1997-12-01 | Verfahren zur wiedergewinnung von bei der herstellung von n-acyl-alpha-aminosäurederivaten durch amidocarbonylierung eingesetzten cobaltcarbonylkatalysatoren |
US09/319,303 US6162753A (en) | 1996-12-05 | 1997-12-01 | Process for recovering cobalt carbonyl catalysts used to produced N-acyl-alpha-amino acid derivatives by amidocarbonylation |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19650501.1 | 1996-12-05 | ||
DE19650501A DE19650501A1 (de) | 1996-12-05 | 1996-12-05 | Verfahren zur Wiedergewinnung von bei der Herstellung von N-Acyl-alpha-aminosäurederivaten durch Amidocarbonylierung eingesetzten Cobaltcarbonylkatalysatoren |
Publications (1)
Publication Number | Publication Date |
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WO1998024547A1 true WO1998024547A1 (de) | 1998-06-11 |
Family
ID=7813752
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP1997/006707 WO1998024547A1 (de) | 1996-12-05 | 1997-12-01 | Verfahren zur wiedergewinnung von bei der herstellung von n-acyl-alpha-aminosäurederivaten durch amidocarbonylierung eingesetzten cobaltcarbonylkatalysatoren |
Country Status (8)
Country | Link |
---|---|
US (1) | US6162753A (de) |
EP (1) | EP0946298B1 (de) |
JP (1) | JP2001505126A (de) |
AU (1) | AU5657498A (de) |
DE (2) | DE19650501A1 (de) |
TW (1) | TW366298B (de) |
WO (1) | WO1998024547A1 (de) |
ZA (1) | ZA9710904B (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0413090D0 (en) | 2004-06-11 | 2004-07-14 | Degussa | Process for preparing amino acids using the amidocarbonylation reaction (2) |
GB0413092D0 (en) * | 2004-06-11 | 2004-07-14 | Degussa | Process for preparing amino acids using the amidocarbonylation reaction (1) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4497964A (en) * | 1981-11-17 | 1985-02-05 | Sagami Chemical Research Center | Process for production of N-acyl-α-amino acids |
US4699999A (en) * | 1983-12-15 | 1987-10-13 | Dynamit Nobel Ag | Method of preparing pure carboxylic acids |
EP0343042A1 (de) * | 1988-05-19 | 1989-11-23 | Rhone-Poulenc Chimie | Herstellungsverfahren von Alkylmalonaten |
EP0779102A1 (de) * | 1995-12-07 | 1997-06-18 | Hoechst Aktiengesellschaft | Verfahren zur Wiedergewinnung von bei der Herstellung von N-Acyl-alpha-aminosäurederivaten durch Amidocarbonylierung eingesetzten Cobaltcarbonylkatalysatoren |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56134526A (en) * | 1980-03-24 | 1981-10-21 | Mitsubishi Gas Chem Co Inc | Recovery of cobalt catalyst |
US5235112A (en) * | 1992-05-29 | 1993-08-10 | Exxon Chemical Patents Inc. | Stripper-reactor for volatile cobalt recovery |
US5354908A (en) * | 1993-07-16 | 1994-10-11 | Exxon Chemical Patents Inc. | Method and system for cobalt absorption in a hydroformylation process |
DE4415312A1 (de) * | 1994-05-02 | 1995-11-09 | Hoechst Ag | Verfahren zur Herstellung von N-Acylglycinderivaten |
-
1996
- 1996-12-05 DE DE19650501A patent/DE19650501A1/de not_active Withdrawn
-
1997
- 1997-12-01 AU AU56574/98A patent/AU5657498A/en not_active Abandoned
- 1997-12-01 US US09/319,303 patent/US6162753A/en not_active Expired - Fee Related
- 1997-12-01 EP EP97952835A patent/EP0946298B1/de not_active Expired - Lifetime
- 1997-12-01 DE DE59710479T patent/DE59710479D1/de not_active Expired - Fee Related
- 1997-12-01 JP JP52518098A patent/JP2001505126A/ja active Pending
- 1997-12-01 WO PCT/EP1997/006707 patent/WO1998024547A1/de active IP Right Grant
- 1997-12-03 TW TW086118159A patent/TW366298B/zh active
- 1997-12-04 ZA ZA9710904A patent/ZA9710904B/xx unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4497964A (en) * | 1981-11-17 | 1985-02-05 | Sagami Chemical Research Center | Process for production of N-acyl-α-amino acids |
US4699999A (en) * | 1983-12-15 | 1987-10-13 | Dynamit Nobel Ag | Method of preparing pure carboxylic acids |
EP0343042A1 (de) * | 1988-05-19 | 1989-11-23 | Rhone-Poulenc Chimie | Herstellungsverfahren von Alkylmalonaten |
EP0779102A1 (de) * | 1995-12-07 | 1997-06-18 | Hoechst Aktiengesellschaft | Verfahren zur Wiedergewinnung von bei der Herstellung von N-Acyl-alpha-aminosäurederivaten durch Amidocarbonylierung eingesetzten Cobaltcarbonylkatalysatoren |
Also Published As
Publication number | Publication date |
---|---|
DE19650501A1 (de) | 1998-06-10 |
JP2001505126A (ja) | 2001-04-17 |
AU5657498A (en) | 1998-06-29 |
EP0946298A1 (de) | 1999-10-06 |
US6162753A (en) | 2000-12-19 |
DE59710479D1 (de) | 2003-08-28 |
ZA9710904B (en) | 1998-06-05 |
EP0946298B1 (de) | 2003-07-23 |
TW366298B (en) | 1999-08-11 |
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