Patent ID: 6531093
Filing Date: 2003-03-11
Classification: A01N,A23L,A61L,C02F,C04B

Abstract:
A method for producing germicidal ceramics, comprising:a mixing step of mixing zeolite and clamshell in a weight ratio of 90:10 to 50:50 and then pulverizing both into particles having an average size of not more than 200 &mgr;m, or mixing, in a weight ratio of 90:10 to 50:50, zeolite powder and clamshell powder previously pulverized into the particles having an average size of not more than 200 &mgr;m respectively to prepare a mixed powder; a compacting step of compacting said mixed powder to prepare a compact; a water-removing step of heating said compact at 100 to 300Â° C. to partially remove water from said compact; a gas and remaining-water-removing step of heating said compact at 400 to 650Â° C. so that carbon dioxide gas can be generated from said clamshell to volatilize and remove said carbon dioxide gas from said compact, and the water remaining in pores of said zeolite is removed, said gas and remaining-water-removing step being performed subsequently to said water-removing step; and a sintering step of heating said compact at 700 to 1050Â° C. to sinter said compact into a sintered compact, said sintering step being performed subsequently to said gas and remaining-water-removing step.