Alkylaromatic dealkylation
Patent 4560820 Issued on December 24, 1985. Estimated Expiration Date: 
October 25, 2004. 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 25, 2004. 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 Re29857 3267023 3660309 3716596 3829519 3856873 3926782 Manufacture of lower aromatic compounds Processing heavy reformate feedstock Hydrodealkylation of alkylaromatic hydrocarbons InventorAssigneeApplicationNo. 06/664658 filed on 10/25/1984US Classes:585/489, Transition metal-containing catalyst585/486, Using extraneous agent in reaction zone, e.g., catalyst, etc.585/487, And steam585/488And HExaminersPrimary: Waltz, Thomas A.Attorney, Agent or FirmInternational ClassesC07C 4/18 (20060101)C07C 4/00 (20060101) AbstractA process for dealkylating alkylaromatic hydrocarbons using intermediate pore size zeolites substantially free of acidity is disclosed. |
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