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The maximum temperature to be reduced with the lowering, zirconium, cerium and other rare earth ox 发明授权

2023-02-03 1340 156K 0

专利信息

申请日期 2025-07-11 申请号 JP2012547519
公开(公告)号 JP5667643B2 公开(公告)日 2015-02-12
公开国别 JP 申请人省市代码 全国
申请人 Rodeia Operashiyon508183151
简介 A composition is described that includes oxides of zirconium, cerium and another rare earth different from cerium, having a cerium oxide content not exceeding 50 wt % and, after calcination at 1000° C. for 6 hours, a maximal reducibility temperature not exceeding 500° C. and a specific surface of at least 45 m2/g. The composition can be prepared according to a method that includes continuously reacting a mixture that includes compounds of zirconium, cerium and another rare earth having a basic compound for a residence time not exceeding 100 milliseconds, wherein the precipitate is heated and contacted with a surfactant before calcination.


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