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Position: Home > Articles > Application of Phrase Separation in Alanine Purification FOOD SCIENCE 2012,33 (18) 250-253

相分离法在丙氨酸分离中的应用

作  者:
冷一欣;顾长宏;黄春香
单  位:
常州大学石油化工学院
关键词:
丙氨酸;相分离;氯化铵;提纯
摘  要:
采用相分离法分离卤代酸法生产的丙氨酸。在20℃条件下,粗品与洗涤液质量比为1:16,对丙氨酸粗产品进行分离,考察相分离洗涤液循环次数对氯化铵脱除率、丙氨酸纯度、丙氨酸回收率的影响。结果表明:洗涤循环10次时,氯化铵脱除率达到88.0%以上,丙氨酸的纯度大于98.0%,平均回收率为93.6%。相分离操作简单,分离效果较好,适于卤代酸法生产丙氨酸的分离和纯化。
译  名:
Application of Phrase Separation in Alanine Purification
作  者:
LENG Yi-xin,GU Chang-hong,HUANG Chun-xiang(School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China)
关键词:
alanine;phrase separation;ammonium chloride;purification
摘  要:
This work reports the application of phase separation for the separation of alanine produced with halogenated carboxylic acid.The purification of crude alanine with washing solution at a solid-to-solvent ratio of 1:16 was carried out under the condition of 20 ℃ to investigate the effect of number of washing cycles on the removal rate of ammonium chloride and the recovery and purity of alanine.Over 88.0% of the impurity ammonium chloride was removed after the tenth washing cycle and the purity and average recovery of alanine were larger than 98.0% and equal to 93.6%,respectively.The process of phase separation was easy,effective and suitable for the separation and purification of alanine produced by halogenated carboxylic acid method.

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