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Synergetic effect of secondary nucleation and growth on the lithium carbonate particle size in the gas-liquid reactive crystallization of LiCl-NH3 center dot H2O-CO2

文献类型：期刊论文

作者Tian, Menghua1,2; Guo, Jianwei1,2; Wang, Zhi1,2; Cao, Jianwei1; Gong, Xuzhong1,2
刊名PARTICUOLOGY
出版日期2020-08-01
卷号51页码:10-17
关键词Li2CO3 Gas-liquid reactive crystallization Particle size distribution Supersaturation Secondary nucleation Growth rate
ISSN号1674-2001
DOI10.1016/j.partic.2019.10.006
英文摘要In this study, the gas-liquid reactive crystallization of LiCI-NH3 center dot H2O-CO2 was adopted to produce Li2CO3. The weakly alkaline nature of NH3 center dot H2O in the absence of any recarbonation process resulted in a unimodal and easily controllable particle size distribution (PSD) of the obtained Li2CO3. The reaction temperature significantly influenced both the Li2CO3 particle size and PSD. By increasing the temperature from 25 to 60 degrees C, the volume weighted mean particle size increased from 50.5 to 100.5 tim, respectively. The Li2CO3 secondary nucleation rate and growth rate were obtained by focused beam reflectance measurements and a laser particle size analyzer, respectively. The secondary nucleation rate of Li2CO3 reduced as a function of temperature, whereas the growth rate increased. In addition to improving the surface energy of the crystals to enhance the growth process, higher temperatures also reduced the supersolubility of Li2CO3, which also plays a role to decrease the secondary nucleation rate. At a constant temperature, supersaturation affects the Li2CO3 particle size through the synergistic effect of secondary nucleation and growth. Hence, with improved supersaturation, the mean particle size of Li2CO3 decreased. The results provide a meaningful way to evaluate the crystallization process and to regulate the particle size. (C) 2019 Chinese Society of Particuology and Institute of Process Engineering, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
WOS关键词METASTABLE ZONE WIDTH ; PRECIPITATION ; CO2 ; CALCIUM ; LI2CO3 ; HYDROMAGNESITE ; RECOVERY ; SYSTEM
资助项目National Key R&D Program of China[2018YFC1901801] ; National Natural Science Foundation of China[51974286] ; National Natural Science Foundation of China[51934006]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:000524974900002
出版者ELSEVIER SCIENCE INC
资助机构National Key R&D Program of China ; National Natural Science Foundation of China
源URL[http://ir.ipe.ac.cn/handle/122111/40030]  
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
推荐引用方式
GB/T 7714		 Tian, Menghua,Guo, Jianwei,Wang, Zhi,et al. Synergetic effect of secondary nucleation and growth on the lithium carbonate particle size in the gas-liquid reactive crystallization of LiCl-NH3 center dot H2O-CO2[J]. PARTICUOLOGY,2020,51:10-17.
APA Tian, Menghua,Guo, Jianwei,Wang, Zhi,Cao, Jianwei,&Gong, Xuzhong.(2020).Synergetic effect of secondary nucleation and growth on the lithium carbonate particle size in the gas-liquid reactive crystallization of LiCl-NH3 center dot H2O-CO2.PARTICUOLOGY,51,10-17.
MLA Tian, Menghua,et al."Synergetic effect of secondary nucleation and growth on the lithium carbonate particle size in the gas-liquid reactive crystallization of LiCl-NH3 center dot H2O-CO2".PARTICUOLOGY 51(2020):10-17.

入库方式： OAI收割

来源：过程工程研究所

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