Mechanochemistry synthesis of high purity lithium carbonate
Chen, Ning1,2; Zhou, E.1; Duan, Dong-ping1,3; Yang, Xue-min1
2017-10-01
发表期刊KOREAN JOURNAL OF CHEMICAL ENGINEERING
ISSN0256-1115
卷号34期号:10页码:2748-2755
摘要

A technique for preparing high purity Li2CO3 powders has been developed through mechanochemical process coupled with the dissolution-filtration process. The first step as mechanochemical reaction of both Na2CO3 and LiCl mixtures was designed to obtain the primary Li2CO3 powders using a ball mill. The second step as the dissolution-filtration process was performed to obtain high purity Li2CO3 powders. Experimental results indicate that the three parameters of milling time, rotation speed, and ball-to-sample mass ratio can closely relate with purity of primary Li2CO3 powders. The XRD patterns of primary Li2CO3 powders indicate that mechanoch emical reaction of both Na2CO3 and LiCl can be completed in 15 min under optimal conditions at rotation speed as 600 rpm, ball-to-sample mass ratio as 5/1, and molar ratio of Na2CO3 to LiCl as 1/2. The target products of Li2CO3 powders contain impurity of Na+ less than 0.1 mass% with the minimum values as 0.073 mass%. Two shapes of massive particles and smaller grains less than 1 mu m in nano scale can be observed in the target products of Li2CO3 powders.

关键词Synthesis Mechanochemical Reaction High Purity Lithium Carbonate Lithium Chloride (Licl) Sodium Carbonate (Na2co3)
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1007/s11814-017-0172-4
收录类别SCI
语种英语
关键词[WOS]Li2co3 ; Kinetics
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Multidisciplinary ; Engineering, Chemical
项目资助者State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology(CNMRCUKF 1503)
WOS记录号WOS:000411993600021
引用统计
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/23261
专题湿法冶金清洁生产技术国家工程实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Qinghai, Peoples R China
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GB/T 7714
Chen, Ning,Zhou, E.,Duan, Dong-ping,et al. Mechanochemistry synthesis of high purity lithium carbonate[J]. KOREAN JOURNAL OF CHEMICAL ENGINEERING,2017,34(10):2748-2755.
APA Chen, Ning,Zhou, E.,Duan, Dong-ping,&Yang, Xue-min.(2017).Mechanochemistry synthesis of high purity lithium carbonate.KOREAN JOURNAL OF CHEMICAL ENGINEERING,34(10),2748-2755.
MLA Chen, Ning,et al."Mechanochemistry synthesis of high purity lithium carbonate".KOREAN JOURNAL OF CHEMICAL ENGINEERING 34.10(2017):2748-2755.
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