硫酸钾镁肥浮选尾矿热浸-冷结晶法提取七水硫酸镁工艺研究

Synthesis Technology of MgSO4 7H2O Produced with Flotation Tailing of Potassium-Magnesium Sulphate Fertilizer through Hot Leaching and Cooling Crystallization

中文关键词:  硫酸钾镁肥  热浸-冷结晶法  七水硫酸镁

英文关键词:Potash magnesium sulphate fertilizer  Hot leaching and cooling crystallization  Magnesium sulfate heptahydrate

中文摘要:

      以国投新疆罗布泊钾盐有限责任公司(简称国投罗钾)提供的硫酸钾镁肥浮选尾矿和氯化镁饱和卤水为原料,探索出了一条以硫酸钾镁肥浮选尾矿为原料,以氯化镁饱和溶液为浸取介质,通过中温溶浸、冷却结晶(包括盐田冷析)等工艺方法制取七水硫酸镁的工艺路线,给出了各工序的工艺技术条件及主要技术指标。

英文摘要:

      The MgSO4·7H2O synthesis flowchart has been given with the flotation tailing of potash-magnesium sulphate fertilizer form,Xinjiang Lop Nur Potash Co.,Ltd.,SDIC and the MgCl2 saturated brine.The mesothermal leaching,cooling crystallization（cold exhalation in salt lake） and other technology processes were discussed,and the optimal parameters for those technology processes were given.