基本信息:
- 专利标题: 纖維乳酸醱酵液之乳酸分離純化方法
- 专利标题(英):Method of separating and purifying lactic acid of fibrous lactic acid enzymatic solution
- 专利标题(中):纤维乳酸酦酵液之乳酸分离纯化方法
- 申请号:TW103137730 申请日:2014-10-31
- 公开(公告)号:TW201615605A 公开(公告)日:2016-05-01
- 发明人: 王世民 , WANG, SHIH-MIN , 李昆達 , LEE, KUN-DA , 曾偉志 , TSENG, WEI-CHIH , 王大明 , WANG, DA-MING , 黃鈞鎂 , HUANG, CHUN-MEI , 郭家倫 , GUO, GIA-LUEN , 邱垂煥 , CHIOU, CHWEI-HUANN , 陳文華 , CHEN, WEN-HUA , 黃文松 , HWANG, WEN-SONG
- 申请人: 行政院原子能委員會核能研究所 , INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
- 申请人地址: 桃園市
- 专利权人: 行政院原子能委員會核能研究所,INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
- 当前专利权人: 行政院原子能委員會核能研究所,INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXECUTIVE YUAN
- 当前专利权人地址: 桃園市
- 代理人: 賴安國; 王立成
- 主分类号: C07C51/42
- IPC分类号: C07C51/42 ; C07C51/44 ; C07C51/493 ; C07C59/08 ; C12P7/56
Provided is a method of separating and purifying lactic acid of a fibrous lactic acid enzymatic solution to obtain lactic acid finally. The method includes: removing impurities from the fibrous lactic acid enzymatic solution in a centrifugal step; reducing the volume of the fibrous lactic acid enzymatic solution in an evaporating and concentrating step; introducing alcohols, inorganic acids, and acidic catalysts into the concentrated fibrous lactic acid enzymatic solution to start esterification in an esterifying step; distilling the resultant lactate ester filtrate in a low pressure low-temperature (70-120 DEG C) condition and a low-pressure high-temperature (120-180 DEG C) condition in a distilling step; and introducing acidic resins into the resultant lactate ester solution to heat up at 80-120 DEG C, reflow, and hydrolyze the mixture, thereby filtering out the resins and obtaining lactic acid, wherein the obtained lactic acid features a recycling rate of 70%, a product content of 88%, and an optical purity of 99%. Hence, the method provides an optimal process of high-efficient separation and purification of lactic acid, is easy to commercialize, and is conducive to cost cutting.
公开/授权文献:
- TWI522343B 纖維乳酸醱酵液之乳酸分離純化方法 公开/授权日:2016-02-21
信息查询:
EspacenetIPC结构图谱:
C | 化学;冶金 |
--C07 | 有机化学 |
----C07C | 无环或碳环化合物 |
------C07C51/00 | 羧酸或它们的盐、卤化物或酐的制备 |
--------C07C51/42 | .分离;纯化;稳定化;添加剂的使用 |