发明名称 |
METHOD FOR PRODUCING COMPOSITE OXIDE AND COMPOSITE OXIDE CATALYST |
摘要 |
Provided are a method for producing a composite oxide and the composite oxide, which finds use as an easy-to-handle catalyst material having a high reforming rate of hydrocarbon to hydrogen even when oxidized. The method includes the steps of: (a) preparing a Ce aqueous solution not less than 80 mol% of which Ce ions are tetravalent, and a Zr aqueous solution containing Zr ions; (b1) mixing the Zr aqueous solution and a portion of the Ce aqueous solution to prepare a mixed aqueous solution (X1); (c1) hydrothermally processing solution (X1); (b2) adding the remainder of the Ce aqueous solution prepared in step (a) to a colloidal solution (Y1) of a composite salt obtained from step (c1) to prepare a colloidal solution (Y2) of a composite salt; (c2) hydrothermally processing solution (Y2) obtained from step (b2) ; (d) mixing a colloidal solution (Y3) of a composite salt obtained from step (c2) with an alkaline solution and a surfactant to prepare a precipitate; and (e) calcining the precipitate. |
申请公布号 |
EP2905260(A4) |
申请公布日期 |
2016.08.24 |
申请号 |
EP20130845809 |
申请日期 |
2013.10.01 |
申请人 |
SANTOKU CORPORATION |
发明人 |
MATSUO SHINYA;MUROTA TADATOSHI |
分类号 |
C01G25/00;B01D53/86;B01J23/89;B01J32/00;B01J37/10;C01B3/40 |
主分类号 |
C01G25/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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