Optimization of Distillation Operation Parameters of High Purity 7-hydroxy

Abstract 7-hydroxy is rectified by vacuum distillation with high efficient packed tower with �� filler,the product purity is over 98.5%,99.99% at instant,the yield is over 70%.Through the study of multivariable batch distillation process,the optimized operation parameters were obtained,the pressure is 2kPa��8kPa,the reflux ratio is 4��12.The experimentation indicated that multivariable batch distillation process could improve the yield.

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Received 2004-05-15; published 2004-05-15

Cite this article:

FENG Hui-sheng,CHEN Wen-feng,LI Xiao-ping,ZHANG Jun-mei .Optimization of Distillation Operation Parameters of High Purity 7-hydroxy[J] Chemcial Industry and Engineering, 2004,V21(3): 186-188