EFFECT OF CHROMATE ION ON ZINC ELECTROWINNING FROM ACID SULFATE ELECTROLYTE

被引：3

作者：

LIN, JC ^{[1
]}

TSAI, SL ^{[1
]}

机构：

[1] ITRI,ENERGY & RESOURCES LABS,CHU TUNG 31015,TAIWAN

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1994年 / 24卷 / 10期

关键词：

D O I：

10.1007/BF00241197

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The effect of chromate ion and its interaction with antimony and glue on zinc electrowinning from acid sulphate electrolyte were studied. During electrolysis at 430 A m-2 and 45-degrees-C, the chromate ion was found to polarize the cathodic reaction resulting in a refined zinc deposit having a morphology featuring a vertical orientation of the zinc platelets. Although chromium did not codeposit, the current efficiency for zinc deposition was dramatically decreased in the presence of > 1000 mg dm-3. This effect became more pronounced when the electrolyte also contained additives such as antimony and glue.

引用

页码：1044 / 1051

页数：8

共 24 条

[1]

COLLINS JF, 1987, WASTE PRODUCTS UTILI

[2]

COTTON FA, 1980, ADV INORG CHEM RAD, P471

[3] MODEL FOR ELECTROCRYSTALLIZATION OF ZINC INVOLVING AN AUTOCATALYTIC STEP [J].