|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Alumina & Bauxite
||Research on Alumina Preparation from Aluminium Chloride Solution by Electrolysis Process
||Zhang Ting'an, Xiuxiu Han, Guozhi Lyu, Xijuan Pan, Shagulyyev Agajan, Daxue Fu, Jiang Liu, Junjie Zhang
|On-Site Speaker (Planned)
For the problems, such as the long technological process , large investment in equipment, exist in the process of aluminium chloride transformed into alumina, during the technology of extracting alumina and other valuable elements in high-alumina powder coal ash using hydrochloric acid method. In this paper, the direct-electricity conversion technology is proposed, for dealing with aluminium chloride solution. Namely, using the method of electrolysis, taking CO2 injection to improve the pH of solution, which make the aluminum precipitate in the form of carboaluminates. Then after roasting, alumina products can be acquired. The influences of the initial AlCl3 concentration and solution composition in the cathode side of the cell on electric conversion process are studied. And, the roasting products have been characterized.
||Planned: Light Metals