响应面法优化氟化铝合成实验  

Optimization of preparation technology of aluminum fluoride by response surface method

作　　者：李志祥 牛永生[2] 吉晓玲 

机构地区：[1]云南云天化国际化工有限公司技术中心,云南昆明650113 [2]昆明理工大学化学工程学院,云南昆明650224

出　　处：《磷肥与复肥》2013年第5期22-24,共3页Phosphate & Compound Fertilizer

摘　　要：在单因素实验基础上,以氟化铵制得的氟化氢和固体氢氧化铝为原料,采用工业干法制备氟化铝。利用响应面法优化工艺并建立数学模型,探讨氟化铵分解温度、流化床床层温度和流化反应时间各因素间相互作用对合成氟化铝的影响。确定了较优的工艺条件:氟化铵分解温度为259.70℃、流化床床层温度为553.54℃、流化反应时间为1.13 h。在此条件下,制得的产品w(AlF3)可达到90.26%。Based on single-factor experiments, with the industrial dry process, aluminum fluoride is prepared with hydrogen fluoride from thermal decomposition of ammonium fluoride and aluminum hydroxide as raw materials. The preparation technology of aluminum fluoride is optimized by response surface method and mathematic model is established. The influence of interaction of various factors on preparation are investigated, such as pyrolysis temperature of ammonium fluoride, fluidized bed temperature and fluidization time. The optimum conditions are confirmed as follows： pyrolysis temperature of ammonium fluoride of 259.70 ℃, fluidized bed temperature of 553.54 ℃and fluidization time of 1.13 h. The purity （w（AIF3）） of the product is 90.26% under the optimum conditions.

关 键 词：氟化铝合成 响应面法 优化工艺条件 

分 类 号：TF821[冶金工程—有色金属冶金]