磷石膏生产硫酸联产水泥用新型还原剂的实验研究  

Experiment study on the production of sulfuric acid integrated with cement by new reducing agent from phosphogypsum raw material

作　　者：王成波[1] 张志业[1] 陈欣[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065

出　　处：《磷肥与复肥》2007年第1期21-23,共3页Phosphate & Compound Fertilizer

摘　　要：实验研究了磷石膏制硫酸联产水泥的一种新型还原剂,所用原料为模拟磷石膏和一种新型还原剂(包括气态和固态还原剂)。采用正交实验探讨了反应温度、反应时间和固态还原剂的配方等因素对转化率的影响,通过多元线性回归得出了各实验因素对转化率影响的回归方程和实验的最优方案。反应温度950℃,反应时间3h时,反应几乎完全。A new process is developed for sulfuric acid production from phosphogypsum raw material. The raw materials in the experiment are simulative phosphogypsum and a compound reducing agent （gas or solid）. The influences of such factors as the reaction temperature, resident time and formula of solid reducing agent on the conversion ratio are discussed with orthogonal experiments. The corresponding regression equation between the above-mentioned experimental factors and the conversion ratio, and the optimum scheme of various experimental factors are obtained by multiply linear regression. With the reaction temperature of 950℃, resident time of 3 hours, the reaction nearly goes to its end.

关 键 词：磷石膏 硫酸 复合还原剂 多元线性回归 

分 类 号：TQ172.6[化学工程—水泥工业]