The effects of 4-ethylpyridine and 2-cyanopyridine on zinc electrowinning from acidic sulfate solutions

被引：30

作者：

Das, SC ^{[1
]}

Singh, P ^{[1
]}

Hefter, GT ^{[1
]}

机构：

[1] MURDOCH UNIV,DEPT CHEM,MURDOCH,WA 6150,AUSTRALIA

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1997年 / 27卷 / 06期

关键词：

D O I：

10.1023/A:1018452224138

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effects of 4-ethylpyridine and 2-cyanopyridine on the electrowinning of zinc in the presence and absence of antimony have been studied, The results are compared with those of a common industrial additive, gum arabic. Addition of either compound reduced current efficiency, increased power consumption and lowered the surface duality of electrodeposited zinc. Both the additives showed similar polarization behaviour to gum arabic. Addition of 0.04 mg dm(-3) antimony increased current efficiency, reduced power consumption and altered the surface morphology and crystallographic orientations, Combinations of antimony with 4-ethylpyridine resulted in very good current efficiencies, and zinc morphology and quality.

引用

页码：738 / 744

页数：7

共 39 条

[1] THE IMPORTANCE OF CATHODE ZINC MORPHOLOGY AS AN INDICATOR OF INDUSTRIAL ELECTROWINNING PERFORMANCE [J].