Shaped catalyst and process for making it
Patent 4826799 Issued on May 2, 1989. Estimated Expiration Date: 
April 14, 2008. 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.
April 14, 2008. 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 References 1628190 1915473 2139602 2461396 2903438 2977327 3351495 3904551 3907710 Raney copper catalyst production and use InventorsApplicationNo. 07/181357 filed on 04/14/1988US Classes:502/301Raney typeExaminersPrimary: Shine, W. J.Attorney, Agent or FirmInternational ClassesB01J 25/00 (20060101)B01J 37/00 (20060101) AbstractCatalysts made by the Raney process (e.g., Raney process nickel) pelletized in matrix of polymer and plasticizer are activated by either (a) removal of plasticizer (e.g., by solvent extraction) followed by leaching out Al with caustic solution, leaving an active catalyst made by the Raney process in a polymer matrix; or (b) removal of plasticizer, then calcining to remove polymer, followed by leaching with caustic. The activated catalyst pellets have sufficient strength and attrition resistance for efficient use in fixed beds and packed columns for superior hydrogenation of toluene, heptene, butyraldehyde, and other conventional feedstockers used with catalysts made by the Raney process.Other References
Field of SearchRaney type |
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