Practice and innovation in co-production of sulphric acid and cement with industrial by-product gypsum
GAO Qiang;FENG Yili;Shandong Lubei Chemical Co. ,Ltd.;
The process,main equipment,feedstock requirement,control indexes and key operational points of an existing plant for co-production of 200 kt / a sulphuric acid and 300 kt / a cement with phosphogypsum are described. The technical scheme of a new plant to be built for co-production of 300 kt / a sulphuric acid and 400 kt / a cement with phosphogypsum in Lubei Chemical is proposed with the emphasis on its technical innovation introduced. It is presented that proactively promoting the production route is of great significance for preventing environmental pollution and implementing resource recycling.