发明名称 |
Process for the purification of isoleucine |
摘要 |
From a mixture of isoleucine and leucine in a ratio by weight of at least 3:7, the isoleucine is precipitated in an anhydrous solvent, particularly methyl ethyl ketone, using concentrated sulphuric acid. The precipitate is separated and freed from sulphuric acid, for example by neutralisation with barium hydroxide after elimination of the solvent. Industrial production of marketable isoleucine from a mixture still containing leucine.
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申请公布号 |
US4307246(A) |
申请公布日期 |
1981.12.22 |
申请号 |
US19800182623 |
申请日期 |
1980.08.29 |
申请人 |
SOCIETE D'ASSISTANCE TECHNIQUE POUR PRODUITS NESTLE S.A. |
发明人 |
BERTHOLET, RAYMOND;HIRSBRUNNER, PIERRE |
分类号 |
C07C227/40;C07C7/00;C07C67/00;C07C227/00;C07C227/18;C07C229/08;(IPC1-7):C07C99/12 |
主分类号 |
C07C227/40 |
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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