Invention Grant
- Patent Title: Reduced maximum reducibility temperature zirconium oxide and cerium oxide based composition, method for the production and use thereof as a catalyst
- Patent Title (中): 降低最大还原温度的氧化锆和氧化铈基组合物，其制备方法和用作催化剂
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Application No.: US10549957Application Date: 2004-03-17
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Publication No.: US07767617B2Publication Date: 2010-08-03
- Inventor: Olivier Larcher , Emmanuel Rohart
- Applicant: Olivier Larcher , Emmanuel Rohart
- Applicant Address: FR Aubervilliers
- Assignee: Rhodia Operations
- Current Assignee: Rhodia Operations
- Current Assignee Address: FR Aubervilliers
- Agency: Buchanan Ingersoll & Rooney PC
- Priority: FR0303289 20030318
- International Application: PCT/FR2004/000647 WO 20040317
- International Announcement: WO2004/085806 WO 20041007
- Main IPC: B01J23/00
- IPC: B01J23/00 ; B01J23/10
Abstract:
A composition is based on zirconium oxide and cerium oxide with a proportion of zirconium oxide amounting to at least 50% by mass, having a maximum reducibility temperature of no more than 500° C. and a specific surface of at least 40 m2/g after 6 hours calcination at 500° C. in the form of a tetragonal phase. The composition can be used as a catalyst.
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