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 |
DOI | 10.1016/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 |
推荐引用方式 GB/T 7714 | 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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