Study on concentrating sulfuric acid solution by vacuum membrane distillation

被引：16

作者：

Guiqing Zhang

Qixiu Zhang

Kanggen Zhou

机构：

[1] Central South University of Technology,Department of Metallurgical Science and Engineering

来源：

Journal of Central South University of Technology | 1999年 / 6卷 / 2期

关键词：

membrane distillation; sulfuric acid; vacuum;

D O I：

10.1007/s11771-999-0007-5

中图分类号：

学科分类号：

摘要：

Concentrating sulfuric acid solution by vacuum membrane distillation with flat PEFE membrane is explored. The effects of sulfuric acid concentration, temperature of the feed, the vacuum degree of the vacuum side on the flux of membrane distillation and the separation efficiency of acid are investigated. The results illustrate that the flux of the membrane distillation increases with the rise of feed temperature and the vacuum degree of the vacuum side, but it decreases with the rise of the sulfuric acid concentration of the feed. The separation efficiency of acid is correlated with the flux of membrane distillation; the separation efficiency of the acid can amount to 100% in the process, when operative conditions are properly controlled. It can also been obtained from the experiment that, compared with other methods of membrane distillation, the vacuum membrane distillation can obtain greater distillation flux.

引用

页码：99 / 102

页数：3

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