Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第13卷    第3期    总第54期    2003年6月

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文章编号:1004-0609(2003)03-0774-04
制取活性锌粉的Zn(Ⅱ)-NH3·H2O-(NH4)2SO4
体系电解法
赵廷凯1, 唐谟堂2, 梁 晶3

(1. 西安交通大学 金属材料强度国家重点实验室,
西安 710049;
2. 中南大学 冶金科学与工程学院, 长沙 410083; 
3. 白银有色金属(集团)有限责任公司, 白银 730900
)

摘 要: 研究了在Zn(Ⅱ)-NH3·H2O-(NH4)2SO4体系中电解制取活性锌粉新工艺。结果表明:在常温下, 电流效率高达88.19%,每吨产品能耗为3254.37kW·h, 其产品质量符合GB6890-86标准; 活性锌粉杂质含量低, 锌含量≥98.78%, 有效锌含量≥96%, 锌的总回收率为97.97% 。 该法与以金属锌为原料的蒸馏法、 雾化法相比较, 成本大幅度降低。

 

关键词: Zn(Ⅱ)-NH3·H2O-(NH4)2SO4;电解; 活性锌粉

Preparation of active zinc powder by electrowinning in 
system of Zn(Ⅱ)-NH3·H2O-(NH4)2SO4
ZHAO Ting-kai1, TANG Mo-tang2, LIANG Jin3

1. State Key Laboratory for Mechanical Behavior of Materials,
Xi'an Jiaotong University, Xi'an 710049, China;
2. School of Metallurgical Science and Engineering,
Central South University, Changsha 410083, China;
3. Baiyin Nonferrous Metals(Group) Co. Ltd., Baiyin 730900, China

Abstract:A new process for preparing active zinc powder by electrowinning in the system of Zn(Ⅱ)-NH3·H2O-(NH4)2SO4 was studied. Electrowinning at room temperature has a good result. The current efficiency is about 88.19%, the energy comsuption for per ton zinc is about 3254.37kW·h. The active zinc powder contains zinc 98.78% and the impurities included in product are low, meeting with the standard of GB6890-86. The total recovery of zinc is about 97.97%. This process has the lowest cost compared with the traditional processes.

 

Key words: ammonia ammonium sulphate; electrowinning; active zinc

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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