公开(公告)号：US5780678A

公开(公告)日：1998-07-14

申请号：US587216

申请日：1996-01-16

申请人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

发明人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

IPC分类号： C12P7/56 ,  C07C51/48

CPC分类号： C12P7/56

摘要： A process for the production of lactic acid and for the separation and/or recovery of lactic acid from a lactate feed solution. A lactate feed solution preferably obtained from a fermentation broth is combined with and extracted by a water immiscible trialkyl amine in the presence of carbon dioxide. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase is preferably recycled to the fermentor and regenerated extractant is preferably recycled for use in the extraction.

公开(公告)号：US5510526A

公开(公告)日：1996-04-23

申请号：US207773

申请日：1994-03-08

申请人： Abraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

发明人： Abraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

IPC分类号： C12P7/56 ,  C07C51/48 ,  C07C51/42

CPC分类号： C12P7/56

摘要： A process for the production of lactic acid and for the separation and/or recovery of lactic acid from a lactate feed solution. A lactate feed solution preferably obtained from a fermentation broth is combined with and extracted by a water immiscible trialkyl amine in the presence of carbon dioxide. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase is preferably recycled to the fermentor and regenerated extractant is preferably recycled for use in the extraction.

公开(公告)号：US06472559B2

公开(公告)日：2002-10-29

申请号：US09768078

申请日：2001-01-23

申请人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

发明人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

IPC分类号： C07C5142

CPC分类号： C12P7/56

摘要： A process for the production and isolation of lactic acid is provided. A lactate feed solution, preferably obtained from a fermentation broth is combined with and extracted by a water-immiscible base in the presence of an acidifying agent. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase can be recycled to the fermentor and regenerated extractant can be recycled for use in the extraction.

摘要翻译： 提供了生产和分离乳酸的方法。 在酸性剂的存在下，优选从发酵液中获得的乳酸盐进料溶液与水不混溶的碱组合并提取。 从所得有机相中回收乳酸。 从水相中回收的碳酸盐或碳酸氢盐可以再循环到发酵罐中，再生的萃取剂可以再循环用于萃取。

公开(公告)号：US6087532A

公开(公告)日：2000-07-11

申请号：US150949

申请日：1998-09-10

申请人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

发明人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

IPC分类号： C12P7/56 ,  C07C51/48

CPC分类号： C12P7/56

摘要： A process for the production of lactic acid and for the separation and/or recovery of lactic acid from a lactate feed solution. A lactate feed solution preferably obtained from a fermentation broth is combined with and extracted by a water immiscible trialkyl amine in the presence of carbon dioxide. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase is preferably recycled to the fermentor and regenerated extractant is preferably recycled for use in the extraction.CROSS-REFERENCE TO RELATED APPLICATIONS

摘要翻译： 用于乳酸生产和乳酸进料溶液分离和/或回收乳酸的方法。 优选从发酵液中获得的乳酸盐进料溶液在二氧化碳的存在下与水不混溶的三烷基胺组合并提取。 从所得有机相中回收乳酸。 从水相中回收的碳酸盐或碳酸氢盐优选再循环到发酵罐中，再生的萃取剂优选再循环用于萃取。

公开(公告)号：US5892109A

公开(公告)日：1999-04-06

申请号：US891467

申请日：1997-07-11

申请人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

发明人： Avraham M. Baniel ,  Aharon M. Eyal ,  Joseph Mizrahi ,  Betty Hazan ,  Rod R. Fisher ,  Jeffrey J. Kolstad ,  Brenda F. Stewart

IPC分类号： C12P7/56 ,  C07C51/48

CPC分类号： C12P7/56

摘要： A process for the production of lactic acid and for the separation and/or recovery of lactic acid from a lactate feed solution. A lactate feed solution preferably obtained from a fermentation broth is combined with and extracted by a water immiscible trialkyl amine in the presence of carbon dioxide. Lactic acid is recovered from the resulting organic phase. Recovered carbonate or bicarbonate from the aqueous phase is preferably recycled to the fermentor and regenerated extractant is preferably recycled for use in the extraction.

摘要翻译： 用于生产乳酸和从乳酸盐进料溶液中分离和/或回收乳酸的方法。 优选从发酵液中获得的乳酸盐进料溶液在二氧化碳的存在下与水不混溶的三烷基胺组合并提取。 从所得有机相中回收乳酸。 从水相中回收的碳酸盐或碳酸氢盐优选再循环到发酵罐中，再生的萃取剂优选再循环用于萃取。