Alkylation catalyst regeneration
Patent 5284993 Issued on February 8, 1994. Estimated Expiration Date: 
September 21, 2012. 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.
September 21, 2012. 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 3778489 3887635 3925318 Distillative purification of alkane sulfonic acids Treatment of sulfur-containing HF-alkylation feed, hydrocarbon product, propane and acid-soluble oils derived from the alkylation Patent #: 4316998 InventorAssigneeApplicationNo. 947611 filed on 09/21/1992US Classes:585/842, HF and another fluoride502/27, Using acid585/718, With coalescing or sorption of, or addition of specific agent to, effluent or effluent component585/719, With plural separation procedures applied to effluent or effluent component585/723, HF585/857, S dioxide, sulfolane, or sulfolene585/868Inorganic O-containing agentExaminersPrimary: Pal, AsokAttorney, Agent or FirmInternational ClassesC07C 007/04C07C 002/62 AbstractDisclosed is a process for removing acid soluble oils, produced as an undesirable by-product of an acid catalyzed alkylation reaction, from a mixture containing a strong acid and methanesulfonic acid. The process includes the use of water to induce the formation of the two immiscible liquid phases of ASO and methanesulfonic acid with water. The two immiscible phases can subsequently be separated from each other. |
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