发明授权
- 专利标题： Process for the extraction of amino acids from an aqueous phase
- 专利标题（中）： 从水相中提取氨基酸的方法
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申请号： US690546申请日： 1985-01-11
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公开(公告)号： US4644067A公开(公告)日： 1987-02-17
- 发明人: Alfred Weber , Detlef Wilke , Johannes Kurzidim , Mario Kennecke
- 申请人： Alfred Weber , Detlef Wilke , Johannes Kurzidim , Mario Kennecke
- 申请人地址： DEX Berlin and Bergkamen
- 专利权人： Schering Aktiengesellschaft
- 当前专利权人： Schering Aktiengesellschaft
- 当前专利权人地址： DEX Berlin and Bergkamen
- 优先权： DEX3134901 19810831
- 主分类号： C07C227/40
- IPC分类号： C07C227/40 ; C07C227/28 ; C07C229/36 ; C07D209/20 ; C07C101/08
摘要：
A process for the extraction of aromatic (e.g., phenyl-containing) amino acids from an aqueous phase (solution) containing them, comprising combining the aqueous phase with a tenside of the formulaR--U--SO.sub.3 XwhereinR is alkyl or cycloalkyl each of 4-18 carbon atoms; or phenyl or naphthyl, each optionally substituted by alkyl groups, and having up to 18 carbon atoms total.U is a carbon-to-sulfur bond or an oxygen atom, andX is an alkali metal ion;acidifying the aqueous phase to a pH value of 2.0-2.5; andextracting the aqueous phase with an alcohol, a ketone, or a carboxylic acid alkyl ester, each containing 4-6 carbon atoms.
公开/授权文献
- US5785242A Pressure seal spot pattern for C-fold mailer 公开/授权日：1998-07-28
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