An Improved Purification Method for Preparation of Basic Nickel Carbonate of High Purity via Chemical Precipitation

作     者：刘昉 张昭 LIU Fang,LI Na,ZHANG Zhao,PENG Shaofang (College of Chemical Engineering,Sichuan University,Chengdu 610065,China)

作者机构：College of Chemical EngineeringSichuan University 

出 版 物：《Journal of Wuhan University of Technology(Materials Science)》 (武汉理工大学学报（材料科学英文版）)

年 卷 期：2008年第23卷第3期

页      面：331-333页

核心收录：

学科分类：080603[工学-有色金属冶金] 08[工学] 0806[工学-冶金工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Funded by Jinchuan Group Ltd.(Sichuan University No.04H433) 

主　　题：basic nickel carbonate purification electric double layer adsorption chemical 

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%.