HIGH-SPEED ZINC ELECTROWINNING USING A HYDROGEN GAS-DIFFUSION ELECTRODE

被引：35

作者：

FURUYA, N

MINEO, N

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Yamanashi University, Kofu, 400

来源：

JOURNAL OF APPLIED ELECTROCHEMISTRY | 1990年 / 20卷 / 03期

关键词：

D O I：

10.1007/BF01076059

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

The feasibility of a high speed zinc electrowinning cell using a Pt catalyzed hydrogen gas-diffusion electrode as an anode is investigated. This new type of zinc-winning cell is operated at a current density of 1.0 A cm-2, which is 20 times higher than usually employed in conventional methods. Current efficiency is 86% at 0.5 A cm-2 in an electrolyte containing 60 gl-1 Zn+270 gl-1 H2SO4, the zinc purity being at least 99.999%. The energy usage of the system is 1400 kWh and 380 m3 H2 gas per ton of zinc. © 1990 Chapman and Hall Ltd.

引用

页码：475 / 478

页数：4

共 7 条

[1]

CALWELL DL, 1981, COMPR TREAT, V2, P152

[2]

FURUYA N, 1988, DENKI KAGAKU, V56, P653

[3]

FURUYA N, 1987, DENKI KAGAKU, V55, P845

[4]

APPLICATION OF THE GAS-DIFFUSION ELECTRODE OF HIGH-PERFORMANCE TO HIGH-SPEED ZINC ELECTROWINNING CELLS [J].