| abstract |
The present invention relates to a process for modifying a layered double hydroxide (LDH) comprising the steps of: a. providing a water-wet layered double hydroxide having the following chemical formula: [Mz+1-xM'y+ x(OH)2]a+(Xn-)a/r‧bH2O (1) wherein M and M' are metal cations, z=1 or 2; y=3 or 4, x is 0.1 to 1, preferably x <1, more preferably x=0.1-0.9, b is 0 to 10, X is an anion, r is 1 to 3, n is a charge on the anion X and a is determined by x, y and z, preferably a= z(1-x)+xy-2; b. maintaining the layered double hydroxide in water wetting; and c. contacting the water-wetting layered double hydroxide with at least one solvent, the solvent being miscible with water Soluble and preferably having a solvent polarity (P') in the range of 3.8 to 9; and a layered double hydroxide prepared according to the process. |