响应面法优化湿法磷酸脱硫工艺的研究  

Optimization of desulphurization process of wet-process phosphoric acid by response surface method

作　　者：胡强[1] 刘代俊[1] 周霞[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065

出　　处：《应用化工》2011年第1期5-7,共3页Applied Chemical Industry

基　　金：国家973项目基金资助(2004CB17801)

摘　　要：采用响应面实验设计方法优化湿法磷酸脱硫工艺,研究了反应时间、温度、BaCO3与硫酸根摩尔比对脱硫率的影响,建立了一个脱硫率与影响因子的多元二次回归方程。结果表明,最佳脱硫条件为:反应时间63.6 min,反应温度62℃,碳酸钡加量与硫酸根的摩尔比为1.312,在此条件下,脱硫率达96.24%。The response surface methodology was used to optimize the wet-process phosphoric acid desulphurization process.Three variables including the time,temperature and the molar ratio of BaCO3/SO42-were investigated and a quadratic polynomial mathematical model was built.The results indicated the optimized desulfation conditions were as follows：time 63.6 min,temperature 62 ℃,the molar ratio of BaCO3/SO42-1.312.The desulphurization rate was up to 96.24% under the optimal conditions.

关 键 词：湿法磷酸 脱硫 净化 响应面法 

分 类 号：TQ126.35[化学工程—无机化工]