TW200720228A - Synthesis of methionine from 2-hydroxy-4-(methylthio)butyronitrile, CO2, HN3 et H2O continuously and without isolation of intermediate products - Google Patents
Synthesis of methionine from 2-hydroxy-4-(methylthio)butyronitrile, CO2, HN3 et H2O continuously and without isolation of intermediate productsInfo
- Publication number
- TW200720228A TW200720228A TW095134743A TW95134743A TW200720228A TW 200720228 A TW200720228 A TW 200720228A TW 095134743 A TW095134743 A TW 095134743A TW 95134743 A TW95134743 A TW 95134743A TW 200720228 A TW200720228 A TW 200720228A
- Authority
- TW
- Taiwan
- Prior art keywords
- hmtbn
- methylthio
- methionine
- butyronitrile
- hydroxy
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
- C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to a process for the preparation of 2-amino-4-(methylthio)butanoic acid (known as methionine) by ammoniacal hydrolysis of an aqueous solution comprising 2-hydroxy-4-(methylthio)butyronitrile (known as HMTBN). This hydrolysis takes place continuously, without isolation of the intermediate products, at a temperature not exceeding 250 DEG C, starting from an NH3/HMTBN molar proportion of between 5 and 50 and from a CO2/HMTBN molar proportion of between 1 and 10. According to this process, an outlet mixture comprising at least methionine, carbon dioxide and ammonia in the dissolved form and products derived from HMTBN is obtained; and the said products derived from HMTBN, the carbon dioxide and the ammonia are recycled to the ammoniacal hydrolysis.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0509637A FR2890966A1 (en) | 2005-09-21 | 2005-09-21 | AMMONIACAL HYDROLYSIS OF 2-HYDROXY-4- (METHYLTHIO) BUTYRONITRILE, E NCONTINU AND WITHOUT ISOLATING INTERMEDIATE PRODUCTS. |
Publications (1)
Publication Number | Publication Date |
---|---|
TW200720228A true TW200720228A (en) | 2007-06-01 |
Family
ID=36087686
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW095134743A TW200720228A (en) | 2005-09-21 | 2006-09-20 | Synthesis of methionine from 2-hydroxy-4-(methylthio)butyronitrile, CO2, HN3 et H2O continuously and without isolation of intermediate products |
Country Status (4)
Country | Link |
---|---|
AR (1) | AR058060A1 (en) |
FR (1) | FR2890966A1 (en) |
TW (1) | TW200720228A (en) |
WO (1) | WO2007034066A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102372739B (en) * | 2011-12-05 | 2017-06-16 | 河北威远生化农药有限公司 | A kind of synthetic method of glufosinate-ammonium |
CN110204453B (en) * | 2019-07-03 | 2024-09-03 | 上海东庚化工技术有限公司 | Preparation method and system of 2-aminobutanamide |
FR3115536A1 (en) * | 2020-10-23 | 2022-04-29 | Adisseo France S.A.S. | Methionine manufacturing process |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2372797A1 (en) * | 1976-12-03 | 1978-06-30 | Anvar | PROCESS FOR CHEMICAL CATALYTIC HYDROLYSIS OF A-AMINO-NITRILS OR THEIR SALTS |
JPS62267253A (en) * | 1986-05-16 | 1987-11-19 | Mitsui Toatsu Chem Inc | Production of alpha-amino acid |
JP3173112B2 (en) * | 1992-04-09 | 2001-06-04 | 住友化学工業株式会社 | Method for producing methionine |
JP2003104959A (en) * | 2001-09-28 | 2003-04-09 | Nippon Soda Co Ltd | Method for producing methionine |
JP2003104960A (en) * | 2001-09-28 | 2003-04-09 | Nippon Soda Co Ltd | Method for producing methionine |
-
2005
- 2005-09-21 FR FR0509637A patent/FR2890966A1/en active Pending
-
2006
- 2006-09-19 WO PCT/FR2006/002140 patent/WO2007034066A1/en active Application Filing
- 2006-09-20 TW TW095134743A patent/TW200720228A/en unknown
- 2006-09-21 AR ARP060104132A patent/AR058060A1/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
AR058060A1 (en) | 2008-01-23 |
FR2890966A1 (en) | 2007-03-23 |
WO2007034066A1 (en) | 2007-03-29 |
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