METHOD OF PRODUCING POROUS LITHIUM ALUMINATE FIBER AND COARSE PARTICLE

摘要

A method of producing porous lithium aluminate fiber or coarse particle for use as a reinforcement of an electrolyte plate of a molten carbonate fuel cell, which comprises either reacting highly pure alumina fibers with a lithium compound at 500 to 1,000 DEG C to give porous fibers (7) of lithium aluminate, or reacting coarse particles of an alumina/silica mixture with a carbonate containing lithium ions at 500 to 1,000 DEG C and releasing the silica into the carbonate to give porous coarse particles (22) of lithium aluminate.