微波干燥八水氢氧化锶的研究  

Experimental study of microwave drying of Sr(OH)_2·8H_2O

作　　者：王万坤[1] 彭金辉[1] 张泽彪[1] 张利波[1] 张正勇[1] 潘惠娟[1] 

机构地区：[1]昆明理工大学材料与冶金工程学院,云南昆明650093

出　　处：《化学工业与工程技术》2009年第4期1-3,共3页Journal of Chemical Industry & Engineering

摘　　要：提出了利用微波干燥八水氢氧化锶的新工艺,探讨了主要影响因素对样品相对脱水率的影响,其优化干燥条件为:物料质量50 g、物料厚度5 mm、微波干燥时间3 min、微波功率950 w,此时八水氢氧化锶的相对脱水率达到99.95%;与常规电加热干燥相比,微波干燥时间仅为常规干燥时间的1/40,而且微波干燥的最大相对脱水率提高了5.35%。A novel process of Sr（OH）2·8H2O drying by microwave heating is proposed. The influences of main effects on the relative dehydration rate of Sr（OH）2·8H2O are investigated. The optimum conditions are obtained as follows： the weight of Sr（OH）2· 8H2O is 50 g, the thickness of Sr（OH）2· 8H2O is 5 mm, the microwave drying time is 3 min, the microwave power is 950 W. Under the conditions, the relative dehydration rate is 99. 95%. Compared with the conventional electrical drying process, the microwave drying time is only 1/40 of conventional electrical drying＇s, and the maximal relative dehydrated rate increases by 5.35%.

关 键 词：八水氢氧化锶 微波 干燥 脱水 结晶水 

分 类 号：TQ132.33[化学工程—无机化工]