公开(公告)号：US06800185B2

公开(公告)日：2004-10-05

申请号：US10097752

申请日：2002-03-15

申请人： Kazuhiro Hasegawa ,  Toshiya Tanabe ,  Yasuhiro Maruta

发明人： Kazuhiro Hasegawa ,  Toshiya Tanabe ,  Yasuhiro Maruta

IPC分类号： B01D6144

CPC分类号： C12P13/08 ,  B01D61/44 ,  C12P13/04 ,  C12P13/10

摘要： Herein are disclosed a method for producing a basic amino acid solution which comprises subjecting a solution of a basic amino acid salt to electrodialysis with the use of an electrodialyser equipped with cation exchange membranes and anion exchange membranes in combination, wherein an alkali aqueous solution is added to the solution of a basic amino acid salt during the electrodialysis, whereby not only desalting is caused but also the counter anions of the basic amino acid are removed to such degree that the said counter anions remain in an amount of 40 mol % or smaller based on the basic amino acid, as well as a method for producing a basic amino acid solution which comprises subjecting a solution of a basic amino acid salt to electrodialysis with the use of an electrodialyser equipped with anion exchange membrane alone, wherein an alkali aqueous solution is added to the solution of a basic amino acid salt to adjust the pH of the solution to 7 to 10 during the electrodialysis, whereby the counter anions are removed. According to these methods, a basic amino acid solution having a high concentration within the concentration range in which crystals of a basic amino acid salt are not deposited, can be easily provided, by removing the counter anions from a solution of a basic amino acid salt efficiently by use of electrodialysis.

摘要翻译： 本发明公开了碱性氨基酸溶液的制造方法，其特征在于，使用配有阳离子交换膜和阴离子交换膜的电渗析器对碱性氨基酸盐的溶液进行电渗析，其中添加碱水溶液 在电渗析中与碱性氨基酸盐的溶液接触，由此不仅可以除去脱盐，而且去除碱性氨基酸的反阴离子，使得所述抗衡阴离子的残留量为40摩尔％以下 碱性氨基酸的制造方法以及碱性氨基酸溶液的制造方法，其特征在于，使用仅含有阴离子交换膜的电渗析器对碱性氨基酸盐的溶液进行电渗析，其中碱性水溶液为 加入到碱性氨基酸盐的溶液中，以在电渗析期间将溶液的pH调节至7至10，其中 通过这些方法，可以容易地提供在碱性氨基酸盐的晶体不沉积的浓度范围内具有高浓度的碱性氨基酸溶液，通过从 通过电渗析有效地溶解碱性氨基酸盐。