SCI和EI收录∣中国化工学会会刊

›› 2011, Vol. 19 ›› Issue (5): 792-798.

• SELECTED PAPERS FROM THE 4TH NATIONAL CONFERENCE ON MASS TRANSFER AND SEPARATION ENGINEERING AND IN HONOUR OF PROF. K. T. YU (YU GUOCONG) • Previous Articles     Next Articles

A Study on Enhancement of Filtration Process with Filter Aids Diatomaceous Earth and Wood Pulp Cellulose

DU Lihong1,2, CHEN Xu1, LI Wenping3, ZHU Qixin1   

  1. 1. Chemical Industry Academy, Tianjin University, Tianjin 300072, China;
    2. Shanghai Research Institute of Chemical Industry, Shanghai 200062, China;
    3. Agrilectric Research Company, Lake Charles, USA
  • Received:2011-06-02 Revised:2011-07-04 Online:2011-10-28 Published:2011-10-28

A Study on Enhancement of Filtration Process with Filter Aids Diatomaceous Earth and Wood Pulp Cellulose

都丽红1,2, 陈旭1, 李文苹3, 朱企新1   

  1. 1. Chemical Industry Academy, Tianjin University, Tianjin 300072, China;
    2. Shanghai Research Institute of Chemical Industry, Shanghai 200062, China;
    3. Agrilectric Research Company, Lake Charles, USA
  • 通讯作者: DU Lihong,E-mail:1186394191@qq.com

Abstract: In this paper, a study to enhance the filtration for solid/liquid materials difficult to be filtered, such as highly viscous, highly compactible or gel like materials, is presented. Filter aids diatomaceous earth and wood pulp cellulose are used to enhance the filtration by improving filter cake structure and properties in the filtration of a biological health product and a highly viscous chemical fiber polymer melt product. The property of solid/liquid systems, filtration at different flow rates, specific cake resistance, cake wetness, filtration rate, filtrate turbidity for filter aid selection and evaluation, and operation optimization are investigated. The results are successfully applied to industrial process, and can be used as a reference for similar filtration applications.

Key words: filter aid, specific cake resistance, cake compressibility coefficient, diatomaceous earth, wood pulp cellulose

摘要: In this paper, a study to enhance the filtration for solid/liquid materials difficult to be filtered, such as highly viscous, highly compactible or gel like materials, is presented. Filter aids diatomaceous earth and wood pulp cellulose are used to enhance the filtration by improving filter cake structure and properties in the filtration of a biological health product and a highly viscous chemical fiber polymer melt product. The property of solid/liquid systems, filtration at different flow rates, specific cake resistance, cake wetness, filtration rate, filtrate turbidity for filter aid selection and evaluation, and operation optimization are investigated. The results are successfully applied to industrial process, and can be used as a reference for similar filtration applications.

关键词: filter aid, specific cake resistance, cake compressibility coefficient, diatomaceous earth, wood pulp cellulose