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1. 发明公开

EP0399573A2 Process for recovery of amino acid from aqueous mixtures 失效
标题翻译：一种用于氨基酸从含水混合物中回收过程。
公开(公告)号：EP0399573A2
公开(公告)日：1990-11-28
申请号：EP90113644.0
申请日：1987-05-13
申请人： HENKEL CORPORATION (a Delaware corp.)
发明人： Mattison, Phillip L. , Wirth, Ronald P. , Virnig, Michael J. , Krbechek, LeRoy
IPC分类号： C07C227/40
CPC分类号： C07C227/40
摘要： Disclosed is a process for recovery of amino acids from aqueous mixtures. In particular, it relates to a treatment of said amino acid containing aqueous mixture prior to extraction of the amino acid with a water immiscible organic solution containing a water insoluble extractant for said amino acid. The overall process of the invention which includes the pretreatment and extraction, also includes optional methods of recovering said extracted amino acid from the water immiscible organic solution. Accordingly, the invention also relates to a process for recovery of the amino acid by stripping of the amino acid from the organic solution and precipitation of the amino acid.

2. 发明公开

EP0247436A1 Process for recovery of amino acid from aqueous mixtures 失效
标题翻译： Verfahren zur Wiedergewinnung vonAminsäurenauswässerigenMischungen。
公开(公告)号：EP0247436A1
公开(公告)日：1987-12-02
申请号：EP87106922.5
申请日：1987-05-13
申请人： HENKEL CORPORATION (a Delaware corp.)
发明人： Mattison, Phillip L. , Wirth, Ronald P. , Virning, Michael J. , Krbechek, LeRoy
IPC分类号： C07C227/28
CPC分类号： C07C227/40
摘要： The process includes

A) a pretreatment process prior to extraction, which involves either or both of two treatments or processes:

a) an ultrafiltration and/or
b) an adsorption treatment;

B) extraction of the amino acid with an organic solution; and
C) a process of recovery of the amino acid from the organic extractant solution, by contacting the organic solution containing the amino acid with any of four different solutions

(a) a concentrated acid solution in the absence of any aqueous phase;
(b) an aqueous acidic solution saturated with the amino acid
(c) an aqueous acidic solution and adjusting the temperature or the pH level so as to precipitate the amino acid;
(d) a brine at a pH greater than or equal to that at the isoelectric point
摘要翻译：该方法包括A）在萃取之前的预处理方法，其涉及两种处理或方法中的任一种或两种：a）超滤和/或b）吸附处理; B）用有机溶液萃取氨基酸; 和C）通过使含有氨基酸的有机溶液与四种不同溶液中的任一种（a）在不存在任何水相的情况下将浓酸溶液接触，从有机萃取剂溶液中回收氨基酸的过程; （b）用氨基酸饱和的酸性水溶液（c）酸性水溶液，调节温度或pH值以使氨基酸沉淀; （d）在等电点o处的pH大于或等于的盐水

3. 发明授权

EP0247436B1 Process for recovery of amino acid from aqueous mixtures 失效
标题翻译：从水性混合物中回收氨基酸的方法
公开(公告)号：EP0247436B1
公开(公告)日：1992-01-08
申请号：EP87106922.5
申请日：1987-05-13
申请人： HENKEL CORPORATION (a Delaware corp.)
发明人： Mattison, Phillip L. , Wirth, Ronald P. , Virning, Michael J. , Krbechek, LeRoy
IPC分类号： C07C227/28
CPC分类号： C07C227/40

4. 发明公开

EP0399573A3 Process for recovery of amino acid from aqueous mixtures 失效
标题翻译：从水性混合物中回收氨基酸的方法
公开(公告)号：EP0399573A3
公开(公告)日：1990-12-19
申请号：EP90113644.0
申请日：1987-05-13
申请人： HENKEL CORPORATION (a Delaware corp.)
发明人： Mattison, Phillip L. , Wirth, Ronald P. , Virnig, Michael J. , Krbechek, LeRoy
IPC分类号： C07C227/40
CPC分类号： C07C227/40
摘要： Disclosed is a process for recovery of amino acids from aqueous mixtures. In particular, it relates to a treatment of said amino acid containing aqueous mixture prior to extraction of the amino acid with a water immiscible organic solution containing a water insoluble extractant for said amino acid. The overall process of the invention which includes the pretreatment and extraction, also includes optional methods of recovering said extracted amino acid from the water immiscible organic solution. Accordingly, the invention also relates to a process for recovery of the amino acid by stripping of the amino acid from the organic solution and precipitation of the amino acid.

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