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公开(公告)号：US4536376A
公开(公告)日：1985-08-20
申请号：US492162
申请日：1983-06-13
申请人： Karl-Richard Loblich
发明人： Karl-Richard Loblich
摘要： Process for producing potassium magnesium phosphate by reacting basic magnesium compounds with phosphoric acid or phosphates in the presence of potassium sulfate from a mother liquor containing per 1000 g water up to 150 g magnesium sulfate and up to 120 g potassium sulfate. Precipitation forms with addition of calcium oxide or hydroxide equimolar to present magnesium sulfate and after phosphoric acid adjustment of the pH to 2-4, mechanical separation and addition of potassium sulfate and basic magnesium compounds, the desired product results.
摘要翻译： 在硫酸钾存在下使碱性镁化合物与磷酸或磷酸盐反应，由含有每1000克水至150g硫酸镁和高达120g硫酸钾的母液中生产磷酸镁钾的方法。 沉淀形式加入氧化钙或氢氧化物等摩尔量为目前的硫酸镁，磷酸调节pH至2-4之后，机械分离并加入硫酸钾和碱性镁化合物，达到理想的产品结果。
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公开(公告)号：US5035872A
公开(公告)日：1991-07-30
申请号：US518113
申请日：1990-05-03
摘要： A method of preparing potassium magnesium phosphate hexahydrate by reacting calcium dihydrogen phosphate with potassium sulfate and a basic magnesium compound is described.
摘要翻译： 描述了通过使磷酸二氢钙与硫酸钾和碱性镁化合物反应来制备磷酸镁镁六水合物的方法。
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公开(公告)号：US4217333A
公开(公告)日：1980-08-12
申请号：US58338
申请日：1979-07-17
申请人： Karl-Richard Loblich
发明人： Karl-Richard Loblich
摘要： A process for producing potassium magnesium phosphate from phosphoric acid, potassium chloride and magnesium oxide, carbonated or like alkaline magnesium compound, which comprises adding the magnesium compound to an aqueous solution of the phosphoric acid or the acidic soluble phosphate salt and an amount of potassium chloride in excess of that theoretically required, in an amount and at a rate such that the pH is maintained below 9 and a high ratio of potassium chloride to magnesium chloride is maintained in the reaction mixture, whereby the formation of tribasic magnesium phosphate is suppressed.
摘要翻译： 一种由磷酸，氯化钾和氧化镁，碳酸或类似碱性镁化合物生产磷酸镁钾的方法，其包括将镁化合物加入到磷酸或酸性可溶性磷酸盐的水溶液中，并加入一定量的氯化钾 在理论上要求的量以及使pH保持在9以下的速率，并且在反应混合物中维持高氯化钾与氯化镁的比例，从而抑制了三元磷酸镁的形成。
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公开(公告)号：US4496526A
公开(公告)日：1985-01-29
申请号：US464731
申请日：1983-02-07
申请人： Karl-Richard Loblich
发明人： Karl-Richard Loblich
CPC分类号： C01B25/45
摘要： For the production of potassium magnesium phosphate from phosphoric acid, potassium salts and basic magnesium compounds, these are reacted in a mixture of recycled mother liquor from the potassium magnesium phosphate crystallization and of fresh water, with adjustment of the pH-value of the reaction mixture to 7.2 up to 8.5 through addition of quickly reacting basic compounds, in the presence of potassium magnesium phosphate seed crystals, whereupon the product is separated from the mother liquor and from this a part is recycled to the process start, and the rest is removed.
摘要翻译： 为了从磷酸，钾盐和碱性镁化合物生产磷酸镁钾，它们在来自磷酸钾钾结晶的再循环母液与淡水的混合物中反应，调节反应混合物的pH值 通过加入快速反应的碱性化合物，在磷酸镁钾晶种的存在下，将7.2至8.5，直到产物从母液中分离出来，并将该部分再循环到工艺开始，其余部分被除去。
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