摘要
以自制的胺类衍生物为氨性体系电积锌的添加剂,考察其用量对电流效率和阴极锌表面形貌的影响。结果表明,在添加剂用量2mL/L、Zn2+浓度40g/L、氯化铵浓度5mol/L、氨水浓度2.5mol/L、电流密度400A/m2、异极距3cm、温度40℃的条件下,电流效率达到90.43%,阴极锌板表面形貌较为致密平整。
Homemade amine ramification was used as additive for zinc electrowinning in ammonia system.The effects of additive dosage on current efficiency and surface morphology of zinc cathode were investigated.The results show that current efficiency is 90.43% with dense and smooth surface morphology under the optimum conditions including dosage additive of 2mL/L,Zn^2＋concentration of 40g/L,ammonium chloride concentration of 5mol/L,ammonia concentration of 2.5mol/L,current density of 400A/m^2,polar distance of 3cm,and temperature of 40 ℃.
出处
《有色金属（冶炼部分）》
CAS
北大核心
2014年第11期1-3,20,共4页
Nonferrous Metals（Extractive Metallurgy)
基金
国家自然科学基金资助项目(51164011)
国家高技术研究发展计划(863计划)项目(2013AA064001)
福建省区域科技重大合作项目(2011H4025)
关键词
氨性体系
电积锌
添加剂
电流效率
表面形貌
ammonia system
zinc electrowinning
additive
current efficiency
surface morphology
