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Vaporization model of MgCl2-CaCl2 binary melts in fluidized bed
Wang, Qiao1,2; Zhu, Qingshan1; Fan, Chuanlin1; Wang, Zhen1; Li, Hongzhong1

The present study investigated the vaporization kinetics of MgCl2, CaCl2 and their binary melts in a fluidized bed at 1073-1273 K, and developed a vaporization model for the binary melts to explore the possibility of achieving enhanced vaporization rate for the feedstock containing CaO greater than 0.2 wt%. The vaporization rate constant of MgCl2 is more than seven times than that of CaCl2 at 1273 K. The vaporization rate of the binary melt was significantly affected by the composition, a small quantity of CaCl2 can remarkably deteriorate the overall vaporization rate. Experimental results coincide well with the numerical simulation by the vaporization model which regards the evolution of vaporization rate with melts composition. A correlation between the necessary operation temperature and the CaO/(CaO + MgO) of the feedstock was proposed. Predictions reveal that a similar vaporization rate for 0.2 wt%-0.4 wt% CaO content feedstock with 0.2 wt% could be achieved at lower than 1365 K. (C) 2016 The Chemical Industry and Engineering Society of China, and Chemical Industry Press. All rights reserved.

KeywordMgcl2 Cacl2 Binary Melts Vaporization Kinetics Kinetics Model
WOS HeadingsScience & Technology ; Technology
Indexed BySCI
WOS KeywordElectrothermal Vaporization ; co+cl-2 Mixtures ; Chlorination ; Ilmenite ; Titanium ; Kinetics ; Rutile ; Nitridation ; Extraction ; Chemistry
WOS Research AreaEngineering
WOS SubjectEngineering, Chemical
Funding OrganizationNational Natural Science Foundation of China (NSFC) Distinguished Young Scholar project(21325628)
WOS IDWOS:000395687900016
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Qiao,Zhu, Qingshan,Fan, Chuanlin,et al. Vaporization model of MgCl2-CaCl2 binary melts in fluidized bed[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2017,25(1):123-129.
APA Wang, Qiao,Zhu, Qingshan,Fan, Chuanlin,Wang, Zhen,&Li, Hongzhong.(2017).Vaporization model of MgCl2-CaCl2 binary melts in fluidized bed.CHINESE JOURNAL OF CHEMICAL ENGINEERING,25(1),123-129.
MLA Wang, Qiao,et al."Vaporization model of MgCl2-CaCl2 binary melts in fluidized bed".CHINESE JOURNAL OF CHEMICAL ENGINEERING 25.1(2017):123-129.
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