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Method for the reduction of Halite in the preparation of Potassium sulphate from Potassium containing Minerals at high Ambient temperatures.
Method for the reduction of Halite in the preparation of Potassium sulphate from Potassium containing Minerals at high Ambient temperatures.
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机译：在高环境温度下从含钾矿物制备硫酸钾中减少卤石的方法。
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摘要
Methods for the production of potassium sulfate.The Methods comprise contacting a composition containing aqueous potassium sulfate and magnesium chloride (MgCl2)To obtain this way a composition comprising Kainit; optionally Kainit Concentrate from the composition and reduce or eliminate the Halite in the same C; reacting KainitOn magnesium sulfate (MgSO4) and Potassium sulphate (K2SO4) to convert the Kainit in mgso4.4h2o leonita (K2SO4.); optionally contacting the leonita with water to remove excess MgSO4; and contacting the leonita with water to Leach the MgSO4, content in leonita,And at least substantially to precipitate selectively Potassium sulphate (K2SO4), which also implies a step control sulfate Brine processBased on the precipitation of bloedita,To control the General level of sulphate in the method and further comprises a step for the reduction or elimination of substantially complete FLOTACIÓN Halite Concentrate,Accompanied by an additional Kainit precipitation, which thus also increases the overall Kainit in the recovery process.The Method can be operated at higher temperatures, especially at temperatures above 35 degrees Celsius and a Cooling Step requires 20 to 25 degrees Celsius.The Method produces potassium sulfate with low amount of chloride.
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机译：制备硫酸钾的方法。该方法包括使含有硫酸钾水溶液和氯化镁（MgCl 2）的组合物接触。可选地，从组合物中浓缩凯尼特精矿，并减少或消除相同C中的Halite;使KainitOn硫酸镁（MgSO 4）和硫酸钾（K 2 SO 4）反应，以将Kainiton转化为mgso4.4h 2 o leonita（K 2 SO 4）。任选地使莱昂尼塔水接触以除去过量的MgSO 4;使莱昂尼塔与水接触以浸出莱昂尼塔中的MgSO4，含量，并至少基本上有选择地沉淀硫酸钾（K2SO4），这也意味着逐步控制硫酸盐的盐水过程基于布鲁德塔的沉淀，控制硫酸盐的总含量该方法中还包括减少或消除基本完全的FLOTACIÓN卤石精矿的步骤，并伴有额外的凯尼特沉淀，从而也增加了回收过程中的总凯尼特。该方法可以在较高温度下操作，尤其是在温度高于35摄氏度，并且冷却步骤需要20到25摄氏度。该方法生产的硫酸钾中氯化物含量低。
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