MD54C2 - Procedeu de obţinere a acidului 2-oxi-4-(metiltio) butiric - Google Patents
Procedeu de obţinere a acidului 2-oxi-4-(metiltio) butiricInfo
- 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
:Invenţia se referă la substanţele sulfoorganice, în special la procedeul de obţinere a acidului 2-oxi-4-(metiltio) butiric, care poate fi folosit ca supliment la furaje în agricultură.Scopul invenţiei - ridicarea calităţii produsului cu destinaţie specială şi anume: culoarea mai deschisă, viscozitatea redusă şi termorezistenţa mai înaltă, ce se obţine prin hidroliza 2-oxi-4-(metil-tio)- butironitrilului (HMBH) mai întâi cu acid sulfuric, care are concentraţia de 50-70% la temperatura de 25-65°C cu tratament ulterior a 2-oxi-4-(metiltio)-butiramidei obţinute cu acid sulfuric, în concentraţia de 30-50% la temperatura 89-120°C prin extracţia cu un dizolvant organic, care nu este miscibil cu apa şi reextracţia produsului cu destinaţie specială în prezenţa apei într-o cantitate de 5-12,2% de masă recalculat la 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 (ru) | 1983-11-14 | 1984-11-13 | Способ получени 2-окси-4-(метилтио)-масл ной кислоты |
Publications (2)
Publication Number | Publication Date |
---|---|
MD54B1 MD54B1 (ro) | 1994-08-31 |
MD54C2 true MD54C2 (ro) | 1994-11-30 |
Family
ID=26666010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MD94-0074A MD54C2 (ro) | 1983-11-14 | 1994-04-07 | Procedeu de obţinere a acidului 2-oxi-4-(metiltio) butiric |
Country Status (2)
Country | Link |
---|---|
LT (1) | LT2074B (ro) |
MD (1) | MD54C2 (ro) |
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/xx not_active IP Right Cessation
-
1994
- 1994-04-07 MD MD94-0074A patent/MD54C2/ro 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 (lt) | 1993-06-15 |
MD54B1 (ro) | 1994-08-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GEP19960463B (en) | Method of producing 2-oxy-4-(methylthio)-butyric acid | |
GB1376781A (en) | Process for converting single cell protein material to nutritionally acceptable form | |
GR3036001T3 (en) | Process for removing chlorophyll color impurities from vegetable oils | |
UA7084A1 (uk) | Спосіб очистки соняшникового або соєвого масел | |
GB1013496A (en) | A process for the preparation of metal salts ofª‡-hydroxy-ª†-methyl mercapto butyricacid | |
MD54C2 (ro) | Procedeu de obţinere a acidului 2-oxi-4-(metiltio) butiric | |
GB1509222A (en) | Water soluble agents having mitogenic properties obtained from nocardia cells and processes for the preparation thereof | |
SU1524515A1 (ru) | Способ переработки титаномагнетитовых концентратов, содержащих ванадий | |
SAARIVIRTA et al. | A Method for Estimating Benzyl Isothiocyanate, Benzyl Thiocyanate, and Benzyl Nitrile in the Crushed, Moistened | |
GB643510A (en) | Process for the preparation of artificial cryolite substantially free from silica | |
Gaffney et al. | Oxygen demand of the lower fatty acids | |
MX170228B (es) | Mejoras en el procedimiento para la recuperacion de selenio con alta pureza a partir de aleaciones de desecho | |
SU46251A1 (ru) | Способ получени трехсернистой сурьмы | |
SU825164A1 (ru) | Собиратель для флотации медно-молибденовб1х руд | |
SU645708A1 (ru) | Модификатор дл флотации оловосодержащих руд | |
GB1373843A (en) | Process for removing zinc from aluminate liquor | |
GB440004A (en) | An improved method of refining selenium | |
JPS5210889A (en) | Purification process of granular sulfide | |
SU141570A1 (ru) | Способ рафинировани хлопковых масел | |
SU581158A1 (ru) | Способ окислительного автоклавного выщелачивани сульфидов цветных металлов | |
GB1371107A (en) | Process for the recovery of zinc from ferrites | |
SE7416261L (ro) | ||
MATSUHASHI et al. | Extraction of agar from Gelidium seaweeds by use of the commercial polyphosphates | |
DE856146C (de) | Verfahren zur Herstellung von Chitinxanthogenat | |
Caldwell et al. | The Solution of Gold by Selenic Acid |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG4A | Patent for invention issued | ||
IF99 | Valid patent on 19990615 |
Free format text: EXPIRES: 20041112 |