Solubility of CaS in Molten CaCl2
- 1 March 2019
- journal article
- conference paper
- Published by Japan Institute of Metals in MATERIALS TRANSACTIONS
- Vol. 60 (3), 386-390
- https://doi.org/10.2320/matertrans.ma201803
Abstract
In order to check the solubility of CaS during sulfide reduction in molten CaCl2, the mixture of CaCl2 and a small amount of CaS was melted in Ar at the range from 1123 K to 1223 K. The melt was sampled by quartz tube and rapidly solidified. The solidified samples showed a lamella structure with CaS particles, which results in a simple eutectic reaction between CaCl2 and CaS. Using ICP-AES analysis, the saturation of CaS was found to be completed within 1.8 ks, and 1.77 +/- 0.1 mol% CaS at 1173 K was measured as the solubility limit at the initial composition of 3.0 mol% CaS. A tentative phase diagram of CaCl2-CaS binary system was proposed based on the solubility analysis in these temperatures and eutectic structure.Keywords
This publication has 18 references indexed in Scilit:
- Solubility of Calcium in CaCl2-CaOECS Transactions, 2009
- Calciothermic reduction of titanium oxide and in-situ electrolysis in molten CaCl2Metallurgical and Materials Transactions B, 2003
- A new concept for producing Ti sponge: Calciothermic reductionJOM, 2002
- Direct electrochemical reduction of titanium dioxide to titanium in molten calcium chlorideNature, 2000
- Role of CaCl2 in the reduction of PuO2Journal of Nuclear Materials, 1985
- Thermodynamic properties of the calcium + calcium chloride system measured by an electrochemical techniqueJournal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, 1975
- Solubilities of calcium in liquid calcium chloride in equilibrium with calcium-copper alloysThe Journal of Physical Chemistry, 1970
- CaCl2-rich region of the CaCl2-CaF2-CaO systemJournal of Chemical & Engineering Data, 1969
- The Calcium Chloride-Calcium Oxide Fused Salt Electrolytic System: Solubilities, Metal Contents, and Freezing PointsJournal of the Electrochemical Society, 1965
- Ionic melts as solvents for electronic conductorsDiscussions of the Faraday Society, 1961