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    • 3. 发明申请
    • CYCLIC PROCESS FOR WET-CHEMICALLY PRODUCING LITHIUM METAL PHOSPHATES
    • CIRCLE PROCESS FOR WET化学生产锂金属磷酸盐
    • WO2006097324A2
    • 2006-09-21
    • PCT/EP2006002472
    • 2006-03-17
    • SUED CHEMIE AGNUSPL GERHARDVOGLER CHRISTIANZUBER JOSEFINE
    • NUSPL GERHARDVOGLER CHRISTIANZUBER JOSEFINE
    • C01B25/45C01B25/37
    • The invention relates to a method for producing lithium metal phosphates of a formula LiMPO 4 , wherein M is at least one type of bivalent metal, preferably selected from the first transition metal range. The inventive method consists in reacting a lithium phosphate with a metal salt and an acid phosphate source in a polar solvent for converting into a corresponding M-containing phosphate, in adding a basic lithium source for obtaining a precursor mixture for a desired lithium metal phosphate, in converting and separating the thus obtained mixture, preferably in hydrothermal conditions, in such a way that a desired final product is obtained, thereby receiving a lithium-containing filtrate. The addition of the basic lithium source initiates a lithium ion precipitation in the form of a lithium phosphate. The thus obtainable lithium phosphate can be reused in the form of a raw material, whereby said cycle enables lithium to be highly reusable.
    • 本发明涉及一种用于制备式为LiMPO 4 ,其中M是至少一种二价金属的锂金属磷酸盐,优选的第一过渡系列装置。 在第一步骤中,磷酸盐与金属盐和在极性溶剂中的酸式磷酸源锂转换成相应的含M的磷酸盐。 通过加入碱性锂源,然后将其优选水热条件下反应,以所期望的最终产物,并分离得到所需的锂金属磷酸盐的前体混合物。 这里,所获得的含锂滤液。 通过添加碱性磷酸盐源的,锂离子沉淀为磷酸锂。 由此获得的磷酸锂可以再次用作原料,使得周期与高的锂利用率创建。