MD54C2 - Process for 2-oxi-4-(methylthio) butyric acid obtaining - Google Patents

Process for 2-oxi-4-(methylthio) butyric acid obtaining

Info

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
Application number
MD94-0074A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD54B1 (en
Inventor
Russell WOLF Laurence
Arthur Ruest Dennis
Takano Masaharu
Original Assignee
Novus International Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/550,857 external-priority patent/US4524077A/en
Application filed by Novus International Inc. filed Critical Novus International Inc.
Publication of MD54B1 publication Critical patent/MD54B1/en
Publication of MD54C2 publication Critical patent/MD54C2/en

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  • 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.
MD94-0074A 1983-11-14 1994-04-07 Process for 2-oxi-4-(methylthio) butyric acid obtaining MD54C2 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2745745A (en) * 1952-10-30 1956-05-15 Monsanto Chemicals Poultry feed

Patent Citations (1)

* Cited by examiner, † Cited by third party
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