氯化钾—硝酸铵复分解法制备硝酸钾工艺进展  

Progress of Production of Potassium Nitrate by Double Decomposition Reaction of Potassium Chloride and Ammonium Nitrate

作　　者：陈坤[1] 时爽[1] 徐保明[1] 许庆博 徐思[1] CHEN Kun SHI Shuang XU Bao- ming XU Qing- bo XU Si(Hubei University of Technology, Wuhan 430068, Chin)

机构地区：[1]湖北工业大学,湖北武汉430068

出　　处：《盐业与化工》2016年第11期11-14,共4页Jounral of Salt and Chemical Industry

基　　金：湖北省教育厅产学研重大项目(CXY2009A010);湖北省自然基金重点项目(2010CDA020)

摘　　要：氯化钾—硝酸铵复分解三步循环结晶法,因其原料来源较广、成本低、工艺设备简单和无环境污染而被中国企业广泛应用。但该工艺在实际生产中仍存在着硝酸钾结晶率不高、设备易结垢、产物分离效果差等问题,如何研究出合乎企业实际生产条件的最佳工艺条件参数,使生产效益最优化,以及开发出不结块硝酸钾和颗粒状硝酸钾技术成为了硝酸钾生产工艺研发的主要方向。The method of three-step cycle crystallization of potassium chloride-ammonium nitrate double decomposition is diffusely utilized by chinese enterprises because of its wide source of raw materials,low cost,simple process equipment and no environmental pollution. However,the process in practice still exists problems such as lowcrystallizationrateof potassium nitrate,easy fouling and poor product separation. Exploring suitable conditions inactual production for optimal production efficiency and developingthe technology of non-cakingand granular potassium nitrate are the main direction of production process ofpotassiumnitrate.

关 键 词：硝酸钾 复分解 工艺流程 

分 类 号：TQ326.51[化学工程—合成树脂塑料工业]