钾长石-CaSO_4-CaCO_3体系的热分解生产复合肥  

Production of Compound Fertilizers by Thermal Decomposition of Potash Feldspar-CaSO_4-CaCO_3 System

作　　者：耿曼[1] 陈定盛[2] 石林[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广州510640 [2]环境保护部华南环境科学研究所,广州510655

出　　处：《化肥工业》2010年第2期29-32,共4页Chemical Fertilizer Industry

基　　金：国家自然科学基金项目(20877026);国家星火计划(2006EA105017);广州市污染防治新技术新工艺研究开发项目资助(200603)

摘　　要：应用XRD和电子探针研究了钾长石-CaSO_4-CaCO_3体系的热分解生产复合肥的过程。结果表明:随着CaCO_3的增加,热分解产物主要物相为C_2S,C_3A和K_2SO_4;电子探针分析表明,热分解产物有新生过渡带的矿物生成。研究结果为利用该体系焙烧生产钾硅肥提供了理论指导。The process of the production of compound fertilizers by thermal decomposition is studied of the potash feldspar-CaSO4-CaCO3 system with the XRD and electron probe. The results show that with the increase in CaCO3 the main phases of the thermal decomposition products are C2S, C3A and K2SO4. The analysis with the electron probe indicates that the thermal decomposition products form new transition belt minerals. The study results provide a theoretical guide for the production of potassium silicon fertilizers by calcination of the system.

关 键 词：钾长石-CaSO4-CaCO3体系 热分解 复合肥 

分 类 号：TQ444[化学工程—化学肥料工业]