MANUFACTURE OF ACTIVATED ALUMINA MOLDING WITH LOW
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专利名称：MANUFACTURE OF ACTIVATED ALUMINA MOLDING WITH LOW DENSITY
发明人：YAMADA KOUICHI,NAKAZATO
KUNIO,SHIRAISHI KATSUZOU,HAMANO
SEIICHI
申请号：JP5337580
申请日：19800421
公开号：JPS56149320A
公开日：
19811119
专利内容由知识产权出版社提供
摘要：PURPOSE:To manufacture activated alumina moldings with low bulk density, large macropore volume and high strength by specifying the particle size of alumina powder and the quarter deviation of the particle size distribution after which the powder is molded, rehydrated, and calcined. CONSTITUTION:Partially rehydratable alumina powder or alumina-contg. matter having about 1-35mum average particle size and
<=about 1.5 quarter deviation of the particle size distribution is used as alumina powder for forming moldings. The alumina powder is mixed with water, molded by granulation, and held in a wet atmosphere. The moldings thus rehydrated are dried, heat treated, and calcined to obtain activated alumina moldings with low density, large macropore volume such as >=about 0.03cc/g volume of pores having >=1,000Angstrom pore radius and superior wear resistance.
申请人：SUMITOMO ALUMINIUM SMELTING CO
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