MD54C2 - Process for 2-oxi-4-(methylthio) butyric acid obtaining - Google Patents
Process for 2-oxi-4-(methylthio) butyric acid obtainingInfo
- Publication number
- MD54C2 MD54C2 MD94-0074A MD940074A MD54C2 MD 54 C2 MD54 C2 MD 54C2 MD 940074 A MD940074 A MD 940074A MD 54 C2 MD54 C2 MD 54C2
- Authority
- MD
- Moldova
- Prior art keywords
- oxi
- methylthio
- butyric acid
- namely
- concentration
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention relates to teh sulphorganic substances, namely to the proces for 2-oxi-4(methylthio) butyric acid obtaining that can be used as forage additive in agriculture. the pupose of the invention consists in increasing the quality of the product having a special destination and namely: a lighter colour, a reduced viscosity and a higher thermal resistrance that it is obtained by the 2-oxi-4-(methylthio) butyronitryl hydrolysis forst with sulphuric acid with the concentration of 50-70% at 25-65°C with the subsequent treatment of the obtained 2-oxi-4-(methylthio)-butyramide with sulphuric acid with the concentration of 30-50% at 89-120°C by extraction with an organic dissolvent unmiscible with water and reextraction of the product having a special destination in the presence of water in an amount of 5-12% of mass recalculated for the extract.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/550,857 US4524077A (en) | 1983-11-14 | 1983-11-14 | Liquid 2-hydroxy-4-methylthiobutyric acid and process for the preparation thereof |
SU843812267A SU1428193A3 (en) | 1983-11-14 | 1984-11-13 | Method of producing 2-oxy-4-(methylthio)-butyric acid |
Publications (2)
Publication Number | Publication Date |
---|---|
MD54B1 MD54B1 (en) | 1994-08-31 |
MD54C2 true MD54C2 (en) | 1994-11-30 |
Family
ID=26666010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MD94-0074A MD54C2 (en) | 1983-11-14 | 1994-04-07 | Process for 2-oxi-4-(methylthio) butyric acid obtaining |
Country Status (2)
Country | Link |
---|---|
LT (1) | LT2074B (en) |
MD (1) | MD54C2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2745745A (en) * | 1952-10-30 | 1956-05-15 | Monsanto Chemicals | Poultry feed |
-
1992
- 1992-12-22 LT LTRP250A patent/LT2074B/en not_active IP Right Cessation
-
1994
- 1994-04-07 MD MD94-0074A patent/MD54C2/en active IP Right Grant
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2745745A (en) * | 1952-10-30 | 1956-05-15 | Monsanto Chemicals | Poultry feed |
Also Published As
Publication number | Publication date |
---|---|
LT2074B (en) | 1993-06-15 |
MD54B1 (en) | 1994-08-31 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20041112 |