2004•Chemical Industry and EngineeringRequires access

Optimization of Distillation Operation Parameters of High Purity 7-hydroxy

Zhang Jun-mei

Abstract

7-hydroxy is rectified by vacuum distillation with high efficient packed tower with θ 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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Key concepts: Fractional distillation, Batch distillation, Vacuum distillation, Yield (engineering), Distillation, Continuous distillation, Fractionating column, Process engineering