Study on Solubility Characteristics of CaWO4 in NaCl-CaCl2 Molten Salt
Received:July 26, 2018   Revised:July 27, 2018   Accepted:July 30, 2018      Published Online:November 19, 2018
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DOI:doi:10.3969/j.issn.1007-7545.2018.12.008
KeyWord:NaCl-CaCl2 molten salt; CaWO4; solubility
                       
AuthorInstitution
Fang Meng-zhao 大冶有色金属有限责任公司
Liao Chun-fa 江西理工大学
Wang Xu 江西理工大学
Wang Kun 江西理工大学
Jiao Yun-fen 江西理工大学
Li Wei 大冶有色金属有限责任公司
Ning Rui 大冶有色金属有限责任公司
Yu Shan 大冶有色金属有限责任公司
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Abstract:
      Saturation dissolution time of CaWO4 in NaCl-CaCl2 molten salt system was investigated by isothermal-saturation method. Effects of temperature and mole ratio of molten salt on solubility of CaWO4 were studied under saturation dissolution time. Phase composition of cooled sample of saturated molten salt was analyzed by XRD. The results show that solubility of CaWO4 linearly rises with increase of temperature during 650~850 ℃, meanwhile, solution rate rises as well. Solubility of CaWO4 rises with increase of CaCl2 content in NaCl-CaCl2 molten salt. Dissolution of CaWO4 in NaCl-CaCl2 molten salt is of physical and chemical nature, mainly of physical one.
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