CATALYST FROM MANGANESE HYDROXIDE AND MAGNESIUM COMPOUND

摘要

A catalyst precursor capable of being calcined to an active catalyst for ortho-alkylation of phenols is described. Such precursor composition comprises a mixture of a magnesium-containing material, and a manganese hydroxide formed as a precipitate by bringing together an aqueous solution of a manganese salt and an aqueous solution of ammonium hydroxide in the presence of the magnesium containing material.