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    • 2. 发明公开
    • Layered mixed metal hydroxides made in non-aqueous media
    • GemischteschichtförmigeMetallhydroxide,hergestellt innichtwässrigenMedien。
    • EP0484829A1
    • 1992-05-13
    • EP91118629.4
    • 1991-10-31
    • THE DOW CHEMICAL COMPANY
    • Burba III, John L.Knobel, Thomas M.Sims, Steve A.
    • C01F7/00C01G49/00C01G37/00
    • B82Y30/00C01B13/32C01B13/34C01F7/00C01F7/002C01P2002/22C01P2004/22C01P2004/54C01P2004/61C01P2004/64C09K8/845C10M125/10C10M177/00
    • Crystalline layered mixed metal hydroxides (LMMHs) which are substantially free of unbound water and which conform esentially to the generic formula



              Li m D d T(OH) (3+m+d) ,



         where
         m represents an amount of Li of from 0 to 1,
         D represents a divalent metal cation, and d represents an amount of D of from 0 to 8.0,
         T represents a trivalent metal cation, and (3+m+d) represents an amount which essentially satifies the valence requirements of Li, D and T, and
         where m+d does not equal zero,
         are prepared, in an organic reaction medium which is essentially free of unbound water, by mixing predetermined metal organo compounds in predetermined ratios and reacting the metal organo compounds with at least one reagent which supplies OH⁻ ions to replace the beginning anions in the mixture of metal compounds.
      A preferred LMMH is one which conforms essentially to the generic formula Mg d Al(OH) (3+d) , where d represents the amount of Mg per each unit of Al. Useful anhydrous gels are among the useful products.
    • 结晶层状混合金属氢氧化物(LMMH),其基本上不含未结合的水,并且与通式LimDdT(OH)(3 + m + d)一致,其中m表示0至1的Li的量,D表示 二价金属阳离子,d表示D为0〜8.0的量,T表示三价金属阳离子,(3 + m + d)表示基本上饱和Li,D和T的化合价要求的量, 其中m + d不等于零,在基本上不含未结合的水的有机反应介质中,通过以预定比例混合预定的金属有机化合物并使金属有机化合物与至少一种提供OH - >离子来代替金属化合物混合物中的起始阴离子。 优选的LMMH是基本上符合通式MgdAl(OH)(3 + d)的LMMH,其中d表示每单位Al的Mg的量。 有用的无水凝胶是有用的产品之一。