An improved purification method for preparation of basic nickel carbonate of high purity via chemical precipitation

被引：1
|
作者：
Liu Fang [1 ]
Li Na [1 ]
Zhang Zhao [1 ]
Peng Shaofang [1 ]
机构：
[1] Sichuan Univ, Coll Chem Engn, Chengdu 610065, Peoples R China
来源：
JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2008年 / 23卷 / 03期
关键词：
basic nickel carbonate; purification; electric double layer; adsorption; chemical;
D O I：
10.1007/s11595-007-3331-3
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The adsorption mechanism of Na+, Cl- and other impurities on the surface of basic nickel carbonate was clarified by electric double layer model. Based on the mechanism, a new purification method was studied. The method can be described as washing-drying-rewashing-drying. The experimental results indicate that the process is very efficient to remove impurities adsorbed by the precipitate when using NiCl2 and Na2CO3 as the raw materials. The finished product's contents of sodium and chlorine are both less than 0.01 wt%.
引用
收藏
页码：331 / 333
页数：3
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