大极板高电流密度锌电积片铅控制技术

Pb Control Technology for Large Plate High Current Density Zinc Electrodeposition

对复杂高锗原料3.2 m^(2)大极板高电流密度锌电积的实际生产现象进行分析,系统研究电解过程中除锌片外观因素外电解液澄清度、电解液杂质元素含量、电解液流转过程Pb的分布及电流密度对锌片含Pb的影响。根据研究分析结果,主要从抑制阳极板中铅的溶解速度和改善电解液中铅的沉降效果等方面采取一系列措施,达到降低锌片含Pb的目的,锌片Pb控制技术的研究与实践可以为行业提供借鉴。

The actual production phenomenon of high current density zinc electrodeposition of 3.2 m^(2) large plate with complex high germanium material was analyzed.The influences of electrolyte clarity,impurity content in electrolyte,distribution of Pb in the electrolyte flow process,and current density on Pb content in zinc sheet Pb were studied.Based on the exploration and analysis,a series of measures were taken to reduce the lead content in zinc sheets,mainly from the aspects of inhibiting the dissolution rate of lead in anode plates and improving the settling effect of lead in electrolyte.The research and practice of zinc sheet Pb control technology can provide reference for the industry.