A method is described for the manufacture of hydrotalcites by using at
least one compound of a bivalent metal (Component A) and at least one
compound of a trivalent metal (Component B), wherein at least one of
these components is not used in the form of a solution, characterized in
that a) at least one of the Components A and/or B which is not used in
the form of a solution, shortly before or during mixing of the
components, and/or b) the mixture containing the Components A and B is
subjected to intensive grinding until an average particle size (D.sub.50)
in the range of approx. 0.1 to 5 .mu.m is obtained, and optionally, after
aging treatment or hydrothermal treatment, the resulting hydrotalcite
product is separated, dried, and optionally calcinated. The hydrotalcite
precursors and/or fine-particle crystalline hydrotalcites which can be
obtained by using the method in accordance with this present invention
may be used in particular as catalysts or catalyst carriers or as
nanocomposite filling agents or co-stabilizers in a polymer matrix.