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Decomposition kinetics of zircon sand in NaOH sub-molten salt solution

文献类型：期刊论文

作者Sun, Hong-qian1,2; Song, Jing1; Sun, Shuai1; Qu, Jing-kui1; Lu, Wei2; Qi, Tao1
刊名TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
出版日期2019-09-01
卷号29期号:9页码:1948-1955
关键词zircon sand decomposition kinetics sub-molten salt sodium zirconium silicate
ISSN号1003-6326
DOI10.1016/S1003-6326(19)65102-2
英文摘要Sub-molten salt was applied to the decomposition of zircon sand (ZrSiO4). The kinetics of the decomposition of zircon sand and the effects of reaction temperature, reaction time, NaOH content, agitation speed, and the NaOH/ore mass ratio on the decomposition rate of zircon sand in NaOH sub-molten salt were investigated. The results indicate that the decomposition rate of zircon sand increases with the increase in the reaction temperature, reaction time, and NaOH content. The shrinking-core model with surface chemical reaction-controlled process is the most applicable for the decomposition of zircon sand, with the apparent activation energy of 77.98 kJ/mol. The decomposition product is sodium zirconium silicate (Na2ZrSiO5), and the decomposition rate is higher than 99% under the optimal conditions.
WOS关键词CHROMITE ORE ; PART I ; CHLORINATION ; FUSION ; KOH
资助项目National Natural Science Foundation of China[51704270] ; Key Research Program of Chinese Academy of Sciences[ZDRW-ZS-2018-1] ; Science and Technology Service Network Plan of Chinese Academy of Sciences[KFJ-STS-ZDTP-040]
WOS研究方向Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000489164300016
出版者ELSEVIER
资助机构National Natural Science Foundation of China ; Key Research Program of Chinese Academy of Sciences ; Science and Technology Service Network Plan of Chinese Academy of Sciences
源URL[http://ir.ipe.ac.cn/handle/122111/31081]  
专题中国科学院过程工程研究所
通讯作者Qu, Jing-kui; Lu, Wei
作者单位1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China
2.Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Hong-qian,Song, Jing,Sun, Shuai,et al. Decomposition kinetics of zircon sand in NaOH sub-molten salt solution[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2019,29(9):1948-1955.
APA Sun, Hong-qian,Song, Jing,Sun, Shuai,Qu, Jing-kui,Lu, Wei,&Qi, Tao.(2019).Decomposition kinetics of zircon sand in NaOH sub-molten salt solution.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,29(9),1948-1955.
MLA Sun, Hong-qian,et al."Decomposition kinetics of zircon sand in NaOH sub-molten salt solution".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 29.9(2019):1948-1955.

入库方式： OAI收割

来源：过程工程研究所

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