发明名称 |
PROCESSO PARA A PREPARACAO DE SOLUCOES AQUOSAS DE ACIDO 2-HIDROXI-4-METILTIO-BITIRICO |
摘要 |
A process is described comprising neutralization with ammonium hydroxide of the reaction mixture generated by the hydrolysis of 2-hydroxy-4-methylthio-butyronitrile by sulphuric acid, so as to obtain an aqueous phase and an organic phase which, once separated, are subjected to evaporation to remove the ammonium sulphate formed. For the aqueous phase, this sulphate is removed as a byproduct; and for the organic phase, it is recirculated to the neutralization vessel. The 2-hydroxy-4-methylthio-butyric acid obtained from the organic phase is subsequently diluted with water and possibly stabilized with sulphuric acid. The product obtained is useful as a food supplement in animal diets. |
申请公布号 |
PT89776(B) |
申请公布日期 |
1994.03.31 |
申请号 |
PT19890089776 |
申请日期 |
1989.02.21 |
申请人 |
SOCIEDAD DE DESARROLLO TECNICO INDUSTRIAL |
发明人 |
JAVIER AZAGRA HERNANDEZ;LUIS RUIZ MORENO |
分类号 |
A23K50/15;C07C319/20;C07C323/00;C07C323/52 |
主分类号 |
A23K50/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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