| abstract |
The invention relates to a method for producing hydrotalcites, using at leas t one compound of a divalent metal (component A) and at least one compound of a trivalent metal (component B), at least one of the two components not being used in its dissolute form. The inventive method is characterized by a) subjecting a least one of the components A and/or B that are not used in its dissolute form shortly before or during mixing of the components, and/or b) the mixture containing components A and B to an intensive grinding step unti l an average particle size (D50) of approximately 0.1 to 5 .mu.m is reached, and, optionally after an aging treatment or hydrothermal treatment, removing , drying and optionally calcinating the hydrotalcite product so obtained. The amorphous hydrotalcite precursors or finely divided crystalline hydrotalcite s obtained by the inventive method are especially useful as catalysts or catalyst supports, or as nanocomposite fillers or co-stabilizers in a polyme r matrix. |