文献类型：期刊文献

英文题名：Phase equilibria of AlCl3 + FeCl3 + H2O, AlCl3 + CaCl2 + H2O, and FeCl3 + CaCl2 + H2O at 298.15 K

作者：Yuan, Mengxia[1];Qiao, Xiuchen[1];Yu, Jianguo[2]

机构：[1]E China Univ Sci & Technol, Sch Resource & Environm Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2016

卷号：61

期号：5

起止页码：1749

外文期刊名：JOURNAL OF CHEMICAL AND ENGINEERING DATA

收录：;EI(收录号：20162202444615);WOS:【SCI-EXPANDED(收录号:WOS:000375969300008)】；

基金：The work described in this paper was funded by the National High Technology Research and Development Program (863 Program) (2011AA06A102), the National Natural Science Foundation of China (21176082) and the Specialized Research Fund for the Doctoral Program of Higher Education (20110074110002).

语种：英文

外文关键词：Aluminum - Aluminum chloride - Fly ash - Metal recovery - Ternary systems - Iron compounds - Phase equilibria - Coal ash

摘要：In the recovery of aluminum from coal fly ash, the phase equilibria of solid liquid systems are important for purifying the aluminum salts. This research investigated phase equilibria of the ternary systems AlCl3 + CaCl2 + H2O, AlCl3 + FeCl3 + H2O, and FeCl3 + CaCl2 + H2O at 298.15 K using isothermal dissolution method. The corresponding phase diagrams and density diagrams were plotted. Both AlCl3 + CaCl2 + H2O and AlCl3 + FeCl3 + H2O systems had one invariant point, two univariate curves, two crystallization regions, and no double salts. The FeCl3 + CaCl2 + H2O system had two invariant points, three crystallization regions and a double salt (CaCl2 center dot 2FeCl(3)center dot 8H(2)O) that formed at 298.15 K. There is no solid solution in all the three systems.