无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2012, Vol. 44 ›› Issue (10): 37-.

• 论文 • 上一篇    下一篇

氯酸钠生产中母液处理工艺研究

郭淑芬,周俊波,潘 胜   

  1. 北京化工大学机电工程学院,北京 100029
  • 出版日期:2012-10-10 发布日期:2012-10-12

Study on treatment process of mother liquor in sodium chlorate industry

 GUO  Shu-Fen, ZHOU  Jun-Bo, PAN  Sheng   

  1. School of Mechanical and Electrical Engineering, Beijing University of
    Chemical Technology,Beijing 100029,China
  • Online:2012-10-10 Published:2012-10-12

摘要: 目前,在氯酸钠生产中常用化学沉淀法处理硫酸根,但是会产生大量含铬污泥,污染环境。提出利用离子交换树脂和纳滤膜装置综合处理结晶母液的方法,既能回收重铬酸钠又能脱除硫酸根。实验结果表明,重铬酸钠的回收率可达98%,结晶母液处理后硫酸钠质量浓度低于3 g/L,达到母液循环利用的要求。

关键词: 离子交换树脂, 纳滤膜, 氯酸钠, 硫酸钠

Abstract: Recently,chemical precipitation is used for treating sulfate radicals in the sodium chlorate production,but produces a considerable amount of sludge containing Cr,causing pollution to the environment.The use of ion exchange resin and nanofiltration membrane device integrated treatment of sodium chlorate industry crystallization mother liquor was presented.This method not only could recover sodium dichromate but also could remove sulfate radicals.Results showed that the recovery rate of sodium dichromate could reach 98%,and the content of sodium sulfate in the crystallization mother liquor was less than 3 g/L after treatment,reaching the recycling requirements.

Key words: ion exchange resin, nanofiltration membrane, sodium chlorate, sodium sulfate

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