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

页码：293 / 299

页数：7