GB1296347A - - Google Patents
Info
- Publication number
- GB1296347A GB1296347A GB1296347DA GB1296347A GB 1296347 A GB1296347 A GB 1296347A GB 1296347D A GB1296347D A GB 1296347DA GB 1296347 A GB1296347 A GB 1296347A
- Authority
- GB
- United Kingdom
- Prior art keywords
- methionine
- hydrolysis
- carbonate
- feb
- alkali metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D233/00—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings
- C07D233/54—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
- C07D233/66—Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D233/72—Two oxygen atoms, e.g. hydantoin
- C07D233/76—Two oxygen atoms, e.g. hydantoin with substituted hydrocarbon radicals attached to the third ring carbon atom
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1296347 Methionine DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT 9 Feb 1970 [8 Feb 1969] 6076/70 Heading C2C Methionine is prepared by hydrolysing 5 - (# - methylmercaptoethyl) - hydantoin at an elevated temperature and pressure with an aqueous solution of an alkali metal carbonate and/or bicarbonate whilst removing the ammonia and CO 2 formed during the hydrolysis and precipitating the methionine from the solution on completion of the hydrolysis by adding CO 2 , the mother liquor containing the alkali metal bicarbonate being recycled to the hydrolysis reaction. The hydrolysis is suitably carried out using an aqueous solution of potassium carbonate and/or potassium hydrogen carbonate. A portion of the mother liquor may be removed from the circuit either periodically or continuously, saturated with C0 2 , and a water - miscible solvent added thereto at low temperature to precipitate methionine and hydrogen carbonate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19691906405 DE1906405C (en) | 1969-02-08 | Process for the preparation of Methio mn |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1296347A true GB1296347A (en) | 1972-11-15 |
Family
ID=5724731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1296347D Expired GB1296347A (en) | 1969-02-08 | 1970-02-09 |
Country Status (13)
Country | Link |
---|---|
JP (1) | JPS549174B1 (en) |
AT (1) | AT295489B (en) |
BE (1) | BE745432A (en) |
CH (1) | CH529118A (en) |
FR (1) | FR2032788A5 (en) |
GB (1) | GB1296347A (en) |
HU (1) | HU162233B (en) |
IL (1) | IL33840A (en) |
IT (1) | IT954084B (en) |
NL (1) | NL150435B (en) |
RO (1) | RO56492A (en) |
SE (1) | SE373842B (en) |
SU (1) | SU503509A3 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1760074A1 (en) * | 2005-08-29 | 2007-03-07 | Sumitomo Chemical Company, Limited | Process for producing methionine |
WO2008006977A1 (en) * | 2006-07-11 | 2008-01-17 | Adisseo France S.A.S. | Process for preparing 2-hydroxy-4-(methylthio)butyronitrile and methionine |
FR2903690A1 (en) * | 2006-07-11 | 2008-01-18 | Adisseo Ireland Ltd | Making 2-hydroxy-4-(methylthio)butyronitrile aqueous solution from acrolein, useful to prepare methionine, comprises reacting acrolein with hydrocyanic acid and methylmercaptan |
FR2951195A1 (en) * | 2009-10-14 | 2011-04-15 | Roquette Freres | COMPOSITION RICH IN METHIONINE FOR ANIMAL FEEDING |
US20180111899A1 (en) * | 2015-04-21 | 2018-04-26 | Adisseo France S.A.S. | Method for making methionine |
CN116535338A (en) * | 2023-04-25 | 2023-08-04 | 重庆渝化新材料有限责任公司 | Potassium salt recycling process in production process of D, L-methionine |
CN116675631A (en) * | 2023-06-07 | 2023-09-01 | 重庆渝化新材料有限责任公司 | Cyclic production method of D, L-methionine |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60344B2 (en) * | 1979-01-25 | 1985-01-07 | 住友化学工業株式会社 | Method for recovering active ingredients from methionine synthesis exhaust gas |
DE19846825A1 (en) † | 1998-10-10 | 2000-04-13 | Degussa | Free-flowing moldings containing methionine and process for their production |
JP2009292796A (en) | 2008-06-09 | 2009-12-17 | Sumitomo Chemical Co Ltd | Method for producing methionine |
JP5307512B2 (en) | 2008-11-07 | 2013-10-02 | 住友化学株式会社 | Method for producing methionine |
JP2010111640A (en) | 2008-11-07 | 2010-05-20 | Sumitomo Chemical Co Ltd | Method for producing methionine |
-
1970
- 1970-02-03 BE BE745432D patent/BE745432A/en not_active IP Right Cessation
- 1970-02-03 CH CH148170A patent/CH529118A/en not_active IP Right Cessation
- 1970-02-04 IL IL33840A patent/IL33840A/en unknown
- 1970-02-05 RO RO62373A patent/RO56492A/ro unknown
- 1970-02-06 SE SE7001569A patent/SE373842B/xx unknown
- 1970-02-06 SU SU1402139A patent/SU503509A3/en active
- 1970-02-06 JP JP1056570A patent/JPS549174B1/ja active Pending
- 1970-02-06 AT AT113170A patent/AT295489B/en not_active IP Right Cessation
- 1970-02-06 FR FR7004281A patent/FR2032788A5/fr not_active Expired
- 1970-02-06 NL NL707001725A patent/NL150435B/en not_active IP Right Cessation
- 1970-02-07 IT IT48405/70A patent/IT954084B/en active
- 1970-02-09 GB GB1296347D patent/GB1296347A/en not_active Expired
- 1970-02-09 HU HUDE708A patent/HU162233B/hu unknown
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1760074A1 (en) * | 2005-08-29 | 2007-03-07 | Sumitomo Chemical Company, Limited | Process for producing methionine |
WO2008006977A1 (en) * | 2006-07-11 | 2008-01-17 | Adisseo France S.A.S. | Process for preparing 2-hydroxy-4-(methylthio)butyronitrile and methionine |
FR2903690A1 (en) * | 2006-07-11 | 2008-01-18 | Adisseo Ireland Ltd | Making 2-hydroxy-4-(methylthio)butyronitrile aqueous solution from acrolein, useful to prepare methionine, comprises reacting acrolein with hydrocyanic acid and methylmercaptan |
US10440974B2 (en) | 2009-10-14 | 2019-10-15 | Evonik Degussa Gmbh | Methionine-rich composition for feeding animals |
WO2011045377A1 (en) * | 2009-10-14 | 2011-04-21 | Roquette Freres | Methionine-rich composition for feeding animals |
FR2951195A1 (en) * | 2009-10-14 | 2011-04-15 | Roquette Freres | COMPOSITION RICH IN METHIONINE FOR ANIMAL FEEDING |
US20180111899A1 (en) * | 2015-04-21 | 2018-04-26 | Adisseo France S.A.S. | Method for making methionine |
US10494335B2 (en) * | 2015-04-21 | 2019-12-03 | Adisseo France S.A.S. | Method for making methionine |
TWI686379B (en) * | 2015-04-21 | 2020-03-01 | 法商艾迪索法國股份有限公司 | Methionine manufacturing process |
CN116535338A (en) * | 2023-04-25 | 2023-08-04 | 重庆渝化新材料有限责任公司 | Potassium salt recycling process in production process of D, L-methionine |
CN116535338B (en) * | 2023-04-25 | 2023-11-03 | 重庆渝化新材料有限责任公司 | Potassium salt recycling process in production process of D, L-methionine |
CN116675631A (en) * | 2023-06-07 | 2023-09-01 | 重庆渝化新材料有限责任公司 | Cyclic production method of D, L-methionine |
CN116675631B (en) * | 2023-06-07 | 2023-12-12 | 重庆渝化新材料有限责任公司 | Cyclic production method of D, L-methionine |
Also Published As
Publication number | Publication date |
---|---|
NL150435B (en) | 1976-08-16 |
JPS549174B1 (en) | 1979-04-21 |
FR2032788A5 (en) | 1970-11-27 |
AT295489B (en) | 1972-01-10 |
IL33840A (en) | 1973-08-29 |
NL7001725A (en) | 1970-08-11 |
IL33840A0 (en) | 1970-04-20 |
DE1906405A1 (en) | 1970-12-03 |
SE373842B (en) | 1975-02-17 |
HU162233B (en) | 1973-01-29 |
RO56492A (en) | 1975-06-15 |
SU503509A3 (en) | 1976-02-15 |
IT954084B (en) | 1973-08-30 |
BE745432A (en) | 1970-07-16 |
CH529118A (en) | 1972-10-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PE20 | Patent expired after termination of 20 years |