| 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: [M z+ 1-x M 'y+ x (OH) 2 ] a+ (X n- ) a/r ‧bH 2 O (1) wherein M and M' are metal cations, z=1 or 2; y=3 or 4, and 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 the charge on the anion X and 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 Miscible with water 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. |