Study on the Pretreatment Technology of Phosphogypsum
PENG Jia-hui,ZHANG Jian-xin,WAN Ti-zhi,TANG Ling,CHEN Ming-feng
DOI:10.11835/j.issn.1674-4764.2000.05.016
Received ,Revised , Accepted , Available online July 01, 2015
Volume ,2000,Pages 74-
- Abstract
The economic and effective pretreatment is a key to its recycling into useful building materials. The pretreatment such as washing, neutralizing with quick lime, grinding, floating, screening, calcination etc. have been studied. The effectiveness, problems and feasibility of pretreatment are analyzed. This paper presents the pretreatment principle of phosphogypsum utilization. If the phosphogypsum utilized is more than hundred thousand tones per year, the washing technology is recommended, otherwise, the technology of neutralizing with quick lime and grinding should be chosen.