GB1472840A - Method of separating and purifying glycine - Google Patents
Method of separating and purifying glycineInfo
- Publication number
- GB1472840A GB1472840A GB3822275A GB3822275A GB1472840A GB 1472840 A GB1472840 A GB 1472840A GB 3822275 A GB3822275 A GB 3822275A GB 3822275 A GB3822275 A GB 3822275A GB 1472840 A GB1472840 A GB 1472840A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glycine
- sodium sulphate
- monosodium
- sept
- aqueous solution
- 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
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1472840 Glycine SHOWA DENKO KK 17 Sept 1975 [18 Sept 1974 (3)] 38222/75 Heading C2C A method of obtaining glycine from an aqueous solution containing glycine sodium sulphate and monosodium iminodiacetate (e.g. derived from the hydrolysis of glyinonitrile) comprises (a) heating the solution at a temperature ranging between the lower and upper limit temperatures as shown by the lines S and G of the accompanying graph whereby to crystallize out sodium sulphate, (b) filtering off the crystallized sodium sulphate whilst still hot and (c) adding water to the hot filtrate and then reducing the pressure to 10-40 mm. of Hg so as to cause evaporation of water and cooling of the filtrate to 33-40‹ C. whereby to crystallize out the glycine. The mother liquor may be recycled but before doing so sulphuric acid is preferably added to adjust the pH to 1À9-2À9 to precipitate out the iminodiacetic acid. The glycine obtained in step (c) contains some of the monosodium diacetate and may be separated from it by subjecting an aqueous solution of the mixture to electrodialysis with ion-exchange membranes.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10662574A JPS588383B2 (en) | 1974-09-18 | 1974-09-18 | Separate method for obtaining glycine or alanine |
JP10662774A JPS5134114A (en) | 1974-09-18 | 1974-09-18 | Arufua aminosantoiminojikarubonsanentonobunriho |
JP10662674A JPS5134113A (en) | 1974-09-18 | 1974-09-18 | GURISHINNOFUNBETSUSHUTOKUHOHO |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1472840A true GB1472840A (en) | 1977-05-11 |
Family
ID=27310783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3822275A Expired GB1472840A (en) | 1974-09-18 | 1975-09-17 | Method of separating and purifying glycine |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE2541677C3 (en) |
FR (1) | FR2285375A1 (en) |
GB (1) | GB1472840A (en) |
NL (1) | NL183184C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986976A (en) * | 1989-04-11 | 1991-01-22 | W. R. Grace & Co.-Conn. | Recovery of glycine and glauber's salt from waste crystal liquors |
US5011988A (en) * | 1989-10-11 | 1991-04-30 | W. R. Grace & Co.-Conn. | Recovery of IDA and Glauber's salt from waste crystal liquors |
US5159110A (en) * | 1991-05-16 | 1992-10-27 | W. R. Grace & Co.-Conn. | Process for recovering n-methyliminodiacetic acid from sodium sulfate |
CN114539081A (en) * | 2022-03-07 | 2022-05-27 | 扬州大学 | Method for separating and purifying glycine by using N, N-dibutylethanolamine |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1075138B (en) * | 1976-03-29 | 1985-04-22 | Grace W R & Co | PROCESS FOR THE RECOVERY OF GLYCINE AND IMINODIACETIC ACID |
DE2906034C2 (en) * | 1979-02-16 | 1985-03-28 | Maggi AG, Kempttal | Process for the production of L-leucine, L-phenylalanine, L-tyrosine, L-cystine and mixtures of L-leucine and L-isoleucine |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US390485A (en) * | 1888-10-02 | Aethur teedgold lawson | ||
US3808269A (en) * | 1972-12-29 | 1974-04-30 | Grace W R & Co | Process for recovering iminodiacetic acid from sodium sulfate solutions |
-
1975
- 1975-09-17 GB GB3822275A patent/GB1472840A/en not_active Expired
- 1975-09-18 NL NL7511023A patent/NL183184C/en not_active IP Right Cessation
- 1975-09-18 FR FR7528619A patent/FR2285375A1/en active Granted
- 1975-09-18 DE DE19752541677 patent/DE2541677C3/en not_active Expired
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986976A (en) * | 1989-04-11 | 1991-01-22 | W. R. Grace & Co.-Conn. | Recovery of glycine and glauber's salt from waste crystal liquors |
AU624931B2 (en) * | 1989-04-11 | 1992-06-25 | Hampshire Chemical Corp. | Recovery of glycine and glauber's salt from waste crystal liquors |
US5338530A (en) * | 1989-04-11 | 1994-08-16 | Hampshire Chemical Corp. | Recovery of glycine and Glauber's salt from waste crystal liquors |
US5011988A (en) * | 1989-10-11 | 1991-04-30 | W. R. Grace & Co.-Conn. | Recovery of IDA and Glauber's salt from waste crystal liquors |
US5159110A (en) * | 1991-05-16 | 1992-10-27 | W. R. Grace & Co.-Conn. | Process for recovering n-methyliminodiacetic acid from sodium sulfate |
CN114539081A (en) * | 2022-03-07 | 2022-05-27 | 扬州大学 | Method for separating and purifying glycine by using N, N-dibutylethanolamine |
CN114539081B (en) * | 2022-03-07 | 2024-04-02 | 扬州大学 | Method for separating and purifying glycine by utilizing N, N-dibutyl ethanolamine |
Also Published As
Publication number | Publication date |
---|---|
NL7511023A (en) | 1976-03-22 |
FR2285375B1 (en) | 1979-03-09 |
DE2541677A1 (en) | 1976-04-15 |
FR2285375A1 (en) | 1976-04-16 |
DE2541677C3 (en) | 1980-10-16 |
DE2541677B2 (en) | 1980-02-21 |
NL183184B (en) | 1988-03-16 |
NL183184C (en) | 1988-08-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19950916 |