Olefin epoxidation catalysts
Patent 6114551 Issued on September 5, 2000. Estimated Expiration Date: 
October 4, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
October 4, 2019. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElastic bushing having fluid chamber filled with highly viscous fluid Epoxidation process and catalyst therefore Epoxidation process Patent #: 5621122 InventorsAssigneeApplicationNo. 412773 filed on 10/04/1999US Classes:549/510, The hetero ring is four-membered502/60ZEOLITE OR CLAY, INCLUDING GALLIUM ANALOGSExaminersPrimary: Owens, AmeliaInternational ClassC07D 305/00AbstractA method of synthesizing an olefin epoxidation catalyst comprises the step of treating a porous crystalline aluminosilicate material having an X-ray diffraction pattern including d-spacing maxima at 12.4&#b1;0.25, 6.9&#b1;0.15, 3.57&#b1;0.07 and 3.42&#b1;0.07 Angstrom, such as MCM-22, with a dealuminating agent under conditions effective to remove framework aluminium from the material and produce a dealuminated product. The dealuminated product is then treated with a titanium-containing material under conditions effective to insert titanium into the dealuminated product and produce a titanium-containing, dealuminated catalyst composition.The resultant catalyst is useful in the epoxidation of olefins, such as propylene and cyclohexene, with hydrogen peroxide and organic hydroperoxides.Other References
|
| ||||||||||||||
