Modification of layered double hydroxides

Modification of layered double hydroxides

  • CN 104,703,918 A
  • Filed: 09/27/2013
  • Published: 06/10/2015
  • Est. Priority Date: 09/28/2012
  • Status: Active Application
First Claim
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1. , for a method of modified layered double hydroxide (LDH), described method comprises,A., the hydrophilic layered double-hydroxide of following formula is provided:

  • [M z+1–

    x
    M’

    y+x(OH) 2] a+(X n–

    ) a/r·

    bH 2O (1) Wherein, M and M '"'"' is metallic cation, z=1 or 2;

    Y=3 or 4, x is 0.1 to 1, preferred x <

    1, and more preferably x=0.1-0.9, b are 0 to 10, X is negatively charged ion, and the r electric charge that to be 1 to 3, n be on negatively charged ion X and a are determined by x, y and z, preferred a=z (1-x)+xy-2;

    B. layered double-hydroxide is kept to be hydrophilic, andC. make described hydrophilic layered double-hydroxide contact with at least one solvent phase, described solvent and water miscible and preferably there is solvent polarity in 3.8 to 9 scopes (P '"'"').

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