CHARACTERIZATION OF IMPURITY EFFECTS IN ZINC ELECTROWINNING FROM INDUSTRIAL ACID SULFATE ELECTROLYTE

被引：140

作者：

MACKINNON, DJ

BRANNEN, JM

FENN, PL

机构：

[1] CANMET, Ottawa, Ont, Can, CANMET, Ottawa, Ont, Can

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1987年 / 17卷 / 06期

关键词：

ELECTROLYTES; -; Impurities; HYDROGEN; Production;

D O I：

10.1007/BF01023596

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The individual effects of 15 impurities and their interaction with glue on zinc electrowinning from industrial acid sulfate electrolyte were characterized in terms of deposit morphology and preferred deposit orientation and in terms of current efficiency and zinc deposition polarization behavior. The current efficiency decreased in a cyclical manner with increasing atomic number of the impurity element in each period of the periodic table. This decrease in current efficiency can be correlated to a corresponding increase in the rate of hydrogen evolution on the impurity metal.

引用

页码：1129 / 1143

页数：15