-
1.发明公开METHOD FOR CONTINUOUSLY PRODUCING HIGH-CONTENT HIGH-OPTICAL-PURITY LACTATE 审中-公开对于光学纯度连续制造方法LACTATPRODUKTES，高乳酸
公开(公告)号：EP2842932A1
公开(公告)日：2015-03-04
申请号：EP12875656.6
申请日：2012-04-27
发明人： YANG, Yihu , XU, Jie
摘要： A continuous method for directly producing lactate through an ester exchange reaction. The method comprises the steps of: adding catalyst in lactic acid to allow for polycondensation so as to obtain lactic acid oligomer having a molecular weight of 1000-2500; adding catalyst into the lactic acid oligomer to allow fordepolymerization so as to obtain crude lactide; and refining the crude lactide, and subjecting the refined lactide and organic alcohol to full-reflux reaction to obtainlactate. The method of the present invention is simple in process, easy to perform, and suitable for industrial production and application. The materials can all be utilized. No "three wastes" emission occurs. Content of the synthesized lactate of the present invention is more than 99.5%, and optical purity of the lactate can reach more than 99%.
摘要翻译： 通过酯交换反应直接生产乳酸的连续方法。 该方法包括以下步骤：在乳酸中添加催化剂，以允许缩聚，从而得到具有1000-2500的分子量乳酸低聚物; 添加催化剂到乳酸低聚物，以允许fordepolymerization以便得到粗丙交酯; 和精炼粗丙交酯，并对该精制的丙交酯和有机醇为全回流反应至obtainlactate。 本发明的方法是在过程简单，容易进行，并适于工业生产和应用。 这些材料都可以利用。 发生无“三废”排放的。 本发明的合成的乳酸含量超过99.5％，并且所述乳酸的光学纯度可达到99％以上。
-
2.发明公开METHOD FOR CONTINUOUSLY PRODUCING HIGH-CONTENT HIGH-OPTICAL-PURITY LACTATE 审中-公开对于光学纯度连续制造方法LACTATPRODUKTES，高乳酸
-
搜索结果
2 条记录 (耗时 0.008 秒)
