Two powder synthesis of hydrotalcite and hydrotalcite-like compounds with monovalent organic anions

摘要

There is provided a method for making monovalent organic anion- intercalated hydrotalcite-like materials by first reacting a magnesium- containing powder and a transition alumina powder in a carboxylic acid- free, aqueous suspension to form a meixnerite intermediate. This intermediate is then contacted with a monovalent organic anion to form a hydrotalcite-like material. The latter is then separated from the suspension. Representative materials include a stearate-, acetate- or benzoate-intercalated hydrotalcite-like material.