发明名称 |
Preparation and use of tin (IV) oxide dispersion |
摘要 |
A tin(IV) oxide dispersion is prepared by peptising metastannic acid with an amine peptising agent such as n-butylamine or cyclohexylamine. The dispesion may be a sol or an intermediate convertible to a sol, and may include other components such as metal oxides or their precursors, e.g. one or more of a high surface area alumina and transition metal oxides such as copper(II) oxide and chromium (VI) oxide. The dispersion may be converted to a gel and then to a ceramic, optionally after the sol has been contacted with a substrate, for example to produce a catalyst. Further coatings may be applied to produce a catalyst comprising a mixture of tin(IV) oxide and chromium(VI) oxide on the substrate which may be effective as an oxidation catalyst and useful in the treatment of vehicle exhaust emissions.
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申请公布号 |
US4946820(A) |
申请公布日期 |
1990.08.07 |
申请号 |
US19890382496 |
申请日期 |
1989.07.21 |
申请人 |
UNITED KINGDOM ATOM ENERGY |
发明人 |
LANE EDWARD S;SEGAL DAVID L;RUSH DONALD F |
分类号 |
B01D53/94;B01J23/14;B01J23/26;B01J23/835;B01J37/02;B01J37/03;C01G19/02;C01G37/00;C04B35/457;C04B41/50;C04B41/52;C04B41/87;C04B41/89 |
主分类号 |
B01D53/94 |
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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