Invention Application
- Patent Title: CATALYST AND METHOD FOR PRODUCING MALEIC ANHYDRIDE
- Patent Title (中): 催化剂及其生产顺酐
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Application No.: PCT/EP0112445Application Date: 2001-10-26
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Publication No.: WO0234387A8Publication Date: 2002-05-23
- Inventor: STORCK SEBASTIAN , WEIGUNY JENS , DUDA MARK , COX GERHARD
- Applicant: BASF AG , STORCK SEBASTIAN , WEIGUNY JENS , DUDA MARK , COX GERHARD
- Assignee: BASF AG,STORCK SEBASTIAN,WEIGUNY JENS,DUDA MARK,COX GERHARD
- Current Assignee: BASF AG,STORCK SEBASTIAN,WEIGUNY JENS,DUDA MARK,COX GERHARD
- Priority: DE10053494 2000-10-27
- Main IPC: C07D307/60
- IPC: C07D307/60 ; B01J27/198 ; B01J35/02 ; B01J37/08 ; C07B61/00 ; C07C51/215 ; C07C51/225 ; C07C57/145
Abstract:
The invention relates to a vanadium-, phosphorus- and oxygen-containing catalyst that is used for producing maleic anhydride by heterogeneous catalytic gas phase oxidation of a hydrocarbon carrying at least four carbon atoms in which the ratio of phosphorus/vanadium is 0.9 to 1.5. Said catalyst comprises particles with an average diameter of at least 2 mm and the composition has a x-ray powder diffraction pattern, obtained by irradiation with CuK alpha radiation ( lambda = 1.54 10 m), that produces in the 2 theta range of 10 DEG to 70 DEG a signal/noise ratio of
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