磷石膏在小孔耦合的微波场中的分解反应研究  

Study of Phosphogypsum Decomposition Reaction in Microwave Field with Hole-Coupling

作　　者：刘骁[1] 刘代俊[1] 樊晓苓[1] 于洋[1] 韩路路[1] 

机构地区：[1]四川大学化学工程学院,四川成都610065

出　　处：《化肥工业》2015年第2期1-5,11,共6页Chemical Fertilizer Industry

基　　金：国家自然科学基金资助项目(21076131)

摘　　要：为了提高磷石膏的分解率,对磷石膏在小孔耦合的微波场中的分解反应进行了研究,并对硫酸钙的分解机理进行了初步探讨。首先利用仿真模拟计算出微波场强最大值,确定膜片形状及磷石膏最优位置;然后加入不同比例的碳粉与磷石膏混合造粒,得到硫酸钙的分解率及相应产物。试验结果表明,磷石膏在微波条件下的分解反应速度大为加快。In order to improve the decomposition rate of phosphogypsum, a study is carried out of the decomposition reaction of phosphogypsum in microwave field with hole-coupling, and the decomposition mechanism of calcium sulfate is investigated preliminarily. The analogue simulation is applied first to calculate the maximum value of microwave field strength, to determine the shape of diaphragm and optimal position of phosphogypsum; then, carbon dusts with different proportions are added and mixed with phosphogypsum for granulation, decomposition rate of calcium sulfate and relevant products are obtained. Experimental results show that the decomposition reaction speed of phosphogypsum is accelerated significantly under microwave condition.

关 键 词：小孔耦合 微波加热 磷石膏 分解率 

分 类 号：X705[环境科学与工程—环境工程]