磷酸二氢钾制备工艺综述

Summary of processes for production of potassium dihydrogen phosphate

综述了磷酸二氢钾的主要制备工艺,并评价了各种工艺的优缺点。认为萃取法具有原料成本低、产品纯度高、技术先进等特点。大型磷复肥企业,配套建设磷酸二氢钾生产装置将是未来生产的发展趋势。

The preparation methods of KH2PO4 are reviewed and the advantages and disadvantages of the methods are discussed.It is considered that the extraction method has the characteristics of low cost of raw materials, high purity of products and more advanced technology.Construction of potassium dihydrogen phosphate production plant in large-scale phosphate and compound fertilizer enterprises will be the future development trend.