Patent ID: 8388987

Claim:
A layered double hydroxide comprising: a plurality of basal layers of a double hydroxide of Formula (I): M(II) 1-x M(III) x (OH) 2 (I) wherein M(II) is Mg, M(III) is Al, and x is 0.2 to 0.33, and a plurality of intercalation layers between each of the adjacent basal layers comprising (a) Mg acetate, and (b) water of intercalation, said layered double hydroxide being produced by a process comprising calcining a carbonate-type layered double hydroxide of Formula (II): [M(II) 2+ 1-x M(III) 3+ x (OH) 2 ][(CO 3 ) x/2 y H 2 O] (II) wherein y is a real number greater than zero; reacting the calcined product with an aqueous solution of Mg acetate; separating the resulting solid product from the solution; and drying and pulverizing the separated solid product.