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公开(公告)号：US20090104675A1
公开(公告)日：2009-04-23
申请号：US12275099
申请日：2008-11-20
申请人： Ikuo Yamaguchi , Osamu Saotome , Shigeru Kuromiya , Tohru Ohnishi , Noriko Yasutani , Satoshi Saitoh , Makoto Mouri , Mitsuru Nakano , Arimitsu Usuki , Nobuhiro Ishida , Kenro Tokuhiro , Eiji Nagamori , Haruo Takahashi
发明人： Ikuo Yamaguchi , Osamu Saotome , Shigeru Kuromiya , Tohru Ohnishi , Noriko Yasutani , Satoshi Saitoh , Makoto Mouri , Mitsuru Nakano , Arimitsu Usuki , Nobuhiro Ishida , Kenro Tokuhiro , Eiji Nagamori , Haruo Takahashi
IPC分类号： C12P7/56
CPC分类号： C12P7/56 , C12N9/0006
摘要： Lactic acid with high optical purity that has not previously been achieved is produced.It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.
摘要翻译： 产生以前未实现的具有高光学纯度的乳酸。 已经发现，当乳酸与甘油共存时，随着乳酸的外消旋反应的进行，乳酸的光学纯度降低。 在通过加热浓缩乳酸之前减少甘油的量，通过加热浓缩后的乳酸的光学纯度可以保持在高水平。
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公开(公告)号：US20070161098A1
公开(公告)日：2007-07-12
申请号：US10592384
申请日：2005-09-07
申请人： Ikuo Yamaguchi , Osamu Saotome , Shigeru Kuromiya , Tohru Ohnishi , Noriko Yasutani , Satoshi Saitoh , Makoto Mouri , Mitsuru Nakano , Arimitsu Usuki , Nobuhiro Ishida , Kenro Tokuhiro , Eiji Nagamori , Haruo Takahashi
发明人： Ikuo Yamaguchi , Osamu Saotome , Shigeru Kuromiya , Tohru Ohnishi , Noriko Yasutani , Satoshi Saitoh , Makoto Mouri , Mitsuru Nakano , Arimitsu Usuki , Nobuhiro Ishida , Kenro Tokuhiro , Eiji Nagamori , Haruo Takahashi
CPC分类号： C12P7/56 , C12N9/0006
摘要： Lactic acid with high optical purity that has not previously been achieved is produced. It has been found that the optical purity of lactic acid is reduced as the racemization reaction of lactic acid proceeds when lactic acid coexists with glycerol. By reducing the amount of glycerol prior to concentrating lactic acid by heating, the optical purity of lactic acid after concentration by heating can be maintained at a high level.
摘要翻译： 产生以前未实现的具有高光学纯度的乳酸。 已经发现，当乳酸与甘油共存时，随着乳酸的外消旋反应的进行，乳酸的光学纯度降低。 在通过加热浓缩乳酸之前减少甘油的量，通过加热浓缩后的乳酸的光学纯度可以保持在高水平。
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公开(公告)号：US07696375B2
公开(公告)日：2010-04-13
申请号：US11995864
申请日：2006-06-27
申请人： Shigeru Kuromiya , Osamu Saotome , Ikuo Yamaguchi , Kazunori Habu
发明人： Shigeru Kuromiya , Osamu Saotome , Ikuo Yamaguchi , Kazunori Habu
IPC分类号： C07C69/66
摘要： This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction in a reaction solution containing ammonium lactate obtained via fermentation and alcohol with an ammonia concentration of 1.0% by weight or lower; and recovering the lactic acid ester synthesized in the above step.
摘要翻译： 本发明提供一种乳酸酯的制造方法，其能够使生产时的输入能量最小化，能够降低化学成本，能够使设备成本最小化。 该方法包括以下步骤：在通过发酵得到的乳酸铵和氨浓度为1.0重量％以下的醇的反应溶液中进行酯化反应; 并回收上述步骤合成的乳酸酯。
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公开(公告)号：US20090105501A1
公开(公告)日：2009-04-23
申请号：US11995864
申请日：2006-06-27
申请人： Shigeru Kuromiya , Osamu Saotome , Ikuo Yamaguchi , Kazunori Habu
发明人： Shigeru Kuromiya , Osamu Saotome , Ikuo Yamaguchi , Kazunori Habu
IPC分类号： C07C51/42
摘要： This invention provides a method for producing a lactic acid ester that can minimize input energy at the time of production, that can reduce chemical costs, and that can minimize equipment costs. This method comprises steps of: performing an esterification reaction in a reaction solution containing ammonium lactate obtained via fermentation and alcohol with an ammonia concentration of 1.0% by weight or lower; and recovering the lactic acid ester synthesized in the above step.
摘要翻译： 本发明提供一种乳酸酯的制造方法，其能够使生产时的输入能量最小化，能够降低化学成本，能够使设备成本最小化。 该方法包括以下步骤：在通过发酵得到的乳酸铵和氨浓度为1.0重量％以下的醇的反应溶液中进行酯化反应; 并回收上述步骤合成的乳酸酯。
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