摘要
研究D201强碱性阴离子交换树脂(Cl型)吸附结合还原络合法进行盐酸除铁离子精制的过程,最佳试验条件为:采用D201强碱性阴离子交换树脂(Cl型),还原剂硫代硫酸钠加入量1%(相对树脂质量,下同),螯合剂EDTA加入量0.5%;在该条件下进行盐酸除铁离子精制,铁离子质量浓度降至0.1 mg/L以下。
The combination of D201 strongly basic anion exchange resin（Cl type） absorption and reduction complexation method for removing iron ion in hydrochloric acid was studied.The best conditions are as follows： D201 strongly basic anion exchange resin（Cl type） is used,and the addition amount（based on the weight of resin） of reducing agent sodium thiosulfate and chelating agent EDTA are 1% and 0.5% respectively.The iron ion in hydrochloric acid is removed under the best conditions to less than mass content of 0.1 mg/L.
出处
《氯碱工业》
CAS
2012年第2期21-25,共5页
Chlor-Alkali Industry
关键词
盐酸
铁离子
阴离子交换树脂
还原络合法
hydrochloric acid
iron ion
anion exchange resin
reduction complexation method
