METHOD FOR CONTROLLING PORE CHARACTERISTIC OF ALUMINA-BASE COMPOSITE METAL OXIDE AND PRODUCTION OF ALUMINA-BASE COMPOSITE METAL OXIDE

摘要

PROBLEM TO BE SOLVED: To control the pore characteristics of an alumina-base composite metal oxide by conditions other than the conditions in the production of composite metal oxide hydrate gel particles and to produce an alumina-base composite metal oxide by applying the controlling method. ;SOLUTION: When the pore characteristics of an alumina-base composite metal oxide having a structure obtd. by forming metal oxide layers on the surfaces of alumina particles are controlled, alumina-base composite metal oxide hydrate gel particles having a structure obtd. by depositing metal oxide hydrate gel on the surfaces of alumina hydrate gel particles are dispersed in an aq. ammonium salt soln. and stirred.;COPYRIGHT: (C)1997,JPO