Separation of HF from polymer, constant boiling mixture relief gases and vent gases in alkylation process
Patent 3959402 Issued on May 25, 1976. Estimated Expiration Date: 
May 25, 1993. 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.
May 25, 1993. 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 2322800 2432030 2448601 2493384 2542927 3243474 InventorsAssigneeApplicationNo. 531514 filed on 12/11/1974US Classes:585/711, Including nonhydrocarbon reactant585/724With additional nonhydrocarbon agentExaminersPrimary: Gantz, Delbert E.Assistant: Crasanakis, G. J. Attorney, Agent or FirmAbstractHF-containing vent gases, relief gases, CBM and polymers discharged from the alkylation zone of an HF alkylation process are contacted with water. Hydrogen fluoride is absorbed within the water, reacted with olefins, converted to organic fluorides and returned to the alkylation zone of the process. HF leaving the alkylation process in vent gases, relief gases, CBM and polymers is thereby recovered. |
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