HYDROGENATION CATALYST FOR CARBOXYLIC ACID AND METHOD FOR HYDROGENATION OF CARBOXYLIC ACID USING SAID CATALYST

摘要

PURPOSE: To provide a method of forming tetrahydrofuran by hydrogenating dicarboxylic acids, particularly maleic anhydride, using a hydrogenation catalyst with a carrier having an improved precious metal component and a Re component of the group VIII metals as the catalytic components. CONSTITUTION: A hydrogenation catalyst for carboxylic acids is provided with a silica carrier having supported thereon a precious metal component and a Re component of the group VIII metals in the periodic table and consisting of a meso-porous body having a BET surface area of at least 120m<2> /g and an average pore size of 2.0-45.0nm in diameter or a sharp distribution of the pore with a diameter of 2