NEW PROCESS FOR RECOVERY OF ZINC-SULFATE AND SULFURIC-ACID FROM ZINC ELECTROWINNING BLEED SOLUTIONS

被引：16
|
作者：
EYAL, AM [1 ]
BANIEL, AM [1 ]
HAJDU, K [1 ]
MIZRAHI, J [1 ]
机构：
[1] CHIMAN DEV & ENGN LTD,HAIFA,ISRAEL
来源：
SOLVENT EXTRACTION AND ION EXCHANGE | 1990年 / 8卷 / 02期
关键词：
D O I：
10.1080/07366299.1990.11073609
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Acid-base couple extractants extract sulfuric acid and zinc sulfate efficiently, selectively and reversibly. Their properties allowed development of a new, solvent extraction process for treating zinc electrowinning waste streams. In this process, about 95% of the sulfuric acid and 95% of the zinc can be recovered at concentrations high enough to be directly recycled to zinc production. Lime consumption and gypsum formation are substantially reduced. Only one extractant is used in the process, and zinc is recovered as zinc sulfate. © 1990, Taylor & Francis Group, LLC. All rights reserved.
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页码：209 / 222
页数：14
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