摘要:
Methods of processing an aqueous solution comprising potassium sulfate and magnesium sulfate include crystallizing K2SO4, crystallizing recycle crystals, and mixing at least a portion of the recycle crystals with the aqueous solution. Systems for processing potassium sulfate and magnesium sulfate include a first crystallizer and a second crystallizer in fluid communication with the second mix tank. The second crystallizer is structured and adapted to precipitate recycle crystals from the concentrated liquor to form a potassium-depleted recycle brine. The recycle crystals precipitated in the second crystallizer have a composition suitable to be recycled to the first crystallizer to increase the production of SOP.
摘要翻译:处理包含硫酸钾和硫酸镁的水溶液的方法包括结晶K 2 SO 4,结晶再循环晶体,并将至少一部分再循环晶体与水溶液混合。 用于处理硫酸钾和硫酸镁的系统包括与第二混合罐流体连通的第一结晶器和第二结晶器。 第二结晶器被构造并适于从浓缩液中沉淀再循环晶体以形成贫钾循环盐水。 在第二结晶器中沉淀的再循环晶体具有适于再循环至第一结晶器的组合物以增加SOP的产生。