Extracting Alumina from Coal Fly Ash with Ammonium Sulfate Sintering Process

作者: Laishi Li , Xinqin Liao , Yusheng Wu , Yingying Liu

DOI: 10.1007/978-3-319-48179-1_38

关键词: SinteringMolar ratioFly ashInorganic chemistryMaterials scienceLeaching (metallurgy)MetallurgyCalcinationAmmoniaAmmonium sulfate

摘要: The whole process of extracting alumina from coal fly ash was trailed by experimentation. Alumina prepared with sintering, leaching, separating, precipitation ammonia water and calcination units. effects the sintering temperature time, molar ratio ammonium sulfate in size on efficiency were studied. can reach 95% under optimum conditions.

参考文章(3)
R.H. Matjie, J.R. Bunt, J.H.P. van Heerden, Extraction of alumina from coal fly ash generated from a selected low rank bituminous South African coal Minerals Engineering. ,vol. 18, pp. 299- 310 ,(2005) , 10.1016/J.MINENG.2004.06.013
Chen Fu-lin, Extracting Alumina from Fly Ash by Soda Lime Sintering Method Mining and Metallurgical Engineering. ,(2008)