Invention Grant
- Patent Title: Process for direct oxidation of propylene to propylene oxide and large particle size titanium silicalite catalysts for use therein
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Application No.: US10251405Application Date: 2002-09-20
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Publication No.: US06960671B2Publication Date: 2005-11-01
- Inventor: Bernard Cooker , Wilson H. Onimus , Jennifer D. Jewson , Ralph M. Dessau
- Applicant: Bernard Cooker , Wilson H. Onimus , Jennifer D. Jewson , Ralph M. Dessau
- Applicant Address: US DE Greenville
- Assignee: Arco Chemical Technology, L.P.
- Current Assignee: Arco Chemical Technology, L.P.
- Current Assignee Address: US DE Greenville
- Agency: Brooks Kushman P.C.
- Main IPC: B01J29/89
- IPC: B01J29/89 ; B01J35/02 ; C01B37/00 ; C07D301/12 ; C07D301/10 ; C07D301/06 ; C07D301/08
Abstract:
Large crystals of titanium silicalite or intergrowths of intergrown smaller crystals, having a mean particle size greater than 2 μm, have been found catalytically effective at commercially reasonable rates for the epoxidation of olefins in the presence of hydrogen peroxide. Crystals synthesized with a silica source having a low sodium content exhibit high levels of production and selectivity. The crystals have a low attrition rate and are easily filterable from a product stream.
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