发明名称 |
Process for the activation of perovskite type oxide |
摘要 |
A process for the activation of perovskite-type oxide by increasing its surface area and/or catalytic activity, which comprises: (i) treating perovskite-type oxide hydrothermally with liquid water with water/perovskite-type oxide ratio of above 0.1 at temperature of 50°-500° C. and period of 0.1-100 h under autogeneous pressure and drying the resulting mass or treating perovskite-type oxide hydrothermally with water vapors with or without any inert gas at space velocity of above 100 h-1, temperature of 200°-1000° C. and a period of 0.1-100 h and (ii) calcining the hydrothermally treated perovskite-type oxide in air or inert gas or under vacuum at temperature of 300°-1000° C. for a period of 0.1-100 h.
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申请公布号 |
US6197719(B1) |
申请公布日期 |
2001.03.06 |
申请号 |
US19990285107 |
申请日期 |
1999.04.01 |
申请人 |
COUNCIL OF SCIENTIFIC AND INDUSTRIAL RESEARCH |
发明人 |
CHOUDHARY VASANT RAMCHANDRA;BANERJEE SUBHABRATA |
分类号 |
B01J23/00;B01J37/10;(IPC1-7):B01J23/00 |
主分类号 |
B01J23/00 |
代理机构 |
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主权项 |
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地址 |
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