针对贵州省乡镇企业的需求和可能条件，将曼海姆炉法一步生产硫酸钾的工艺，改为二步法生产。研究出适宜的工艺条件；将原工艺装备的难点分散，难度降低；并使操作和工艺设备易于实施，达到投资省，工期短，易操作。产品达到一级农用硫酸钾标准，并且不会产生混合酸。 According to the demand and possible conditions of township and village enterprises in Guizhou Province, the process of one-step production of potassium sulfate in Mannheim furnace method was changed to two-step production. The suitable process conditions were researched. The difficulty of the original process equipment was dispersed and the difficulty was reduced. The operation and process equipment were easy to implement, which saved investment, shorten the construction period and was easy to operate. The product meets Grade 1 agricultural potassium sulfate standards and does not produce mixed acids.