发明名称 CATALYST COMPOSITION FOR ULTRA HIGH TEMPERATURE OPERATION
摘要 <p>A high temperature stable catalyst is made with fine particles of a base metal such as chromium, hafnium and niobium or their oxides dispersed throughout a matrix made of composite particles having at least one platinum group metal on a ceria promoted, high temperature chemically stabilized refractory oxide powder. The refractory oxide powder can be either alumina, alumina powder which has been calcined at a temperature near incipient alpha alumina formation, silica-alumina or zirconia. The base metal or base metal oxide comprises about 15% to 90% by weight of the total weight and the platinum group metal comprises 0.05% to 10% by weight of the total weight. The catalyst composition can be applied as a washcoat to conventional substrates or it can be formed into shaped catalysts. The washcoat is made by mixing together one slip containing the composite particles with a second slip containing the base metal or base metal oxide particles.</p>
申请公布号 CA1249571(A) 申请公布日期 1989.01.31
申请号 CA19850484228 申请日期 1985.06.17
申请人 GRACE W R & CO 发明人 ERNEST, MICHAEL V.
分类号 B01J23/40;B01J23/63;B01J23/648;B01J23/652;B01J37/04;(IPC1-7):B01J37/04;B01J23/56 主分类号 B01J23/40
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