MODIFIED ANION-EXCHANGE RESINS FOR IMPROVED CHROMATE SELECTIVITY AND INCREASED EFFICIENCY OF REGENERATION

被引：16
|
作者：
SENGUPTA, AK
ROY, T
JESSEN, D
机构：
[1] Lehigh Univ, United States
来源：
REACTIVE POLYMERS | 1988年 / 9卷 / 03期
关键词：
Chromium Compounds--Ion Exchange - Wastewater--Chemicals Removal;
D O I：
10.1016/0167-6989(88)90255-3
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Selective removal of hexavalent chromium, Cr(VI), by anion-exchange processes is often resorted to for decontaminating various chromate-laden wastewaters in the presence of high concentration of competing sulfate ions. Experimental results are provided to show that a modified strong-base resin with tripropyl quaternary ammonium functionality offers greater chromate selectivity and improved efficiency of regeneration over widely used commercially available anion-exchange resins with trimethyl quaternary ammonium or dimethyl tertiary amine functionality. Use of this new, modified resin is likely to be more economic for decontaminating chromate-laden industrial wastewaters.
引用
收藏
页码：293 / 299
页数：7
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