中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Insight into lithium carbonate crystallization in the mild reaction system LiCl-NH3 center dot H2O-CO2 by stabilizing the solution with NH3 center dot H2O

文献类型:期刊论文

作者Tian, Menghua1,2; Wang, Zhi1,2; Cao, Jianwei1; Guo, Jianwei1,2; Gong, Xuzhong1,2
刊名JOURNAL OF CRYSTAL GROWTH
出版日期2019-08-15
卷号520页码:46-55
ISSN号0022-0248
关键词Absorption Diffusion Supersaturated solutions Growth from solutions Lithium compounds
DOI10.1016/j.jcrysgro.2019.05.020
英文摘要In this work, a novel method was utilized for the gas-liquid reactive crystallization of Li2CO3 in a LiCl-NH3 center dot H2O-CO2 system and the time-dependences of crystallization parameters were investigated carefully. The results indicated that [NH4+] had great influence on the Li2CO3 precipitation process, and that it could inhibit the recarbonation of the Li2CO3 crystals, thus simplifying the carbonation process. Increasing the concentration of NH3 center dot H2O can improve the CO2 absorption efficiency and stabilize the metastable solution with enlarged metastable zone width (MSZW), and the existence of NH3 center dot H2O made the absorption of CO2 more sensitive to temperature. The crystallization rate was improved by increasing the temperature, while the supersaturation (S) restricted the increase of the crystallization rate at temperatures below 60 degrees C. The kinetics was estimated to provide insight into the mechanism controlling the crystallization, and the apparent activation energy was found to be 23.55 kJ/mol, which indicated that the crystallization of Li2CO3 from the LiCl-NH3 center dot H2O-CO2 system was controlled by a combination of surface reaction and diffusion.
WOS关键词CALCIUM-CARBONATE ; CO2 ABSORPTION ; MASS-TRANSFER ; PRECIPITATION ; LI2CO3 ; MAGNESIUM ; SIZE ; TRANSFORMATION ; EXTRACTION ; KINETICS
资助项目National Key R&D Program of China[2018YFC1901801] ; National Science Foundation of China[51422405]
WOS研究方向Crystallography ; Materials Science ; Physics
语种英语
出版者ELSEVIER SCIENCE BV
WOS记录号WOS:000470111100007
资助机构National Key R&D Program of China ; National Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/29921]  
专题中国科学院过程工程研究所
通讯作者Wang, Zhi
作者单位1.Chinese Acad Sci, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China
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Tian, Menghua,Wang, Zhi,Cao, Jianwei,et al. Insight into lithium carbonate crystallization in the mild reaction system LiCl-NH3 center dot H2O-CO2 by stabilizing the solution with NH3 center dot H2O[J]. JOURNAL OF CRYSTAL GROWTH,2019,520:46-55.
APA Tian, Menghua,Wang, Zhi,Cao, Jianwei,Guo, Jianwei,&Gong, Xuzhong.(2019).Insight into lithium carbonate crystallization in the mild reaction system LiCl-NH3 center dot H2O-CO2 by stabilizing the solution with NH3 center dot H2O.JOURNAL OF CRYSTAL GROWTH,520,46-55.
MLA Tian, Menghua,et al."Insight into lithium carbonate crystallization in the mild reaction system LiCl-NH3 center dot H2O-CO2 by stabilizing the solution with NH3 center dot H2O".JOURNAL OF CRYSTAL GROWTH 520(2019):46-55.

入库方式: OAI收割

来源:过程工程研究所

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