赵瑞荣
,
蒋汉瀛
,
秦毅红
,
曾振欧
,
杨基岳
金属学报
本文研究了由脆硫锑铅精矿湿法炼Sb的阳极反应与阳极电流密度。高阳极电流密度是造成电积Sb直流电耗偏高、车间碱雾大、阴极沉积物状态不好、电流效率偏低的重要原因。研究了碱溶液中Fe阳极活性溶解机理与钝化过程,阳极钝化经历吸附、成相与钝化膜老化等一系列过程。使用新型贱金属节能阳极Fe/Ni/Co_3O_4,可以降低每t电积Sb直流电耗160kWh以上,这种材料有推广应用价值。
关键词:
Sb
,
hydrometallurgy
,
electrochemistry
,
DSA anode
ZHAO Ruirong JIANG Hanying QIN Yihong ZENG Zhenou YANG Jiyue Central South University of Technology
,
Changsha
,
China ZHAO Ruirong
,
Associate Professor
,
Dept.of Chemistry
,
Central South University of Technology
,
Changsha 410083
,
China
金属学报(英文版)
The anode reaction and current density of the electrowinning of Sb from jamesonite concen- trate have been investigate.High anodic current density seems to be the major reason for high energy consumption,air pollution by alkaline mists in workshop as well as poor quality of deposition.A series of steps,such as absorption,phase formation,ageing of passivated films etc.,were found to be involved during the anodic passivating process of Fe in NaOH solution. A new anodic material Fe/Ni/Co_3O_4 was developed so as to save the d.c.electric energy over 160 kWh/t of Sb.
关键词:
Sb
,
null
,
null
,
null
