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This article comes from: www.yqwjdy.com extraction column is a liquid petroleum refining, chemical industry and environmental protection departments widely - liquid mass transfer equipment, has a simple structure, easy to install and manufacturing characteristics. In the liquid - liquid mass transfer system, the two phases of severe difference is small, interfacial tension difference is not large, resulting in a smaller phase to promote mass transfer of inertial force, has been stratified two-phase stratified separation capacity is not high. In order to improve the efficiency of liquid transfer device, often supply extra energy, such as stirring, pulse and vibration. Batch distillation, also known as batch distillation, once all the material to be separated into the distillation column, when distillation, distillation kettle heating, so that boiling, steaming out of the overhead vapor is condensed back as part of the overhead product, and the other part column as reflux back; the operation ended, the residue once discharged from the autoclave, and then the next batch distillation operating materials. Usually batch distillation capacity is low, quite different before and after the concentration was cut separate division. Similar Liquor finished separation. Batch Distillation has the following characteristics: the composition of the liquid in the tank with the rectification will be continuously reduced, the distillation column operating parameters (such as temperature, concentration) may also change over time, and therefore belong to the unstable operation of batch distillation. Only batch distillation rectifying section. Overhead product composition varies depending on the operating mode. Hongding Hua Wuxi Chemical Equipment Co., Ltd. Address: Wuxi Taihu Lake District town double new industrial park Contact: Hua Jianjun Tel: 0510-85189799 Fax: 0510-85190830 E-mail: sales@hdhhg.com