Olefin oligomerization with surface modified zeolite catalyst
July 18, 2009. 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 2143566 2318719 Process for the dimerization or co-dimerization of linear olefins and catalysts therefore Organic compound conversion over ZSM-23 Preparation of improved alkylphenylsulfonates Selective production of aromatics Selective production of olefins Process for converting -olefin dimers to higher more useful oligomers Process of making high VI lubes Production of lubricant range hydrocarbons from light olefins InventorsAssigneeApplicationNo. 381230 filed on 07/18/1989US Classes:585/7, Component of indefinite molecular weight greater than 150562/93, Processes including alkylation of a benzene ring, and the products thereof562/95, Sulfonation processes585/10, Polymer585/11, Containing aromatic ring585/18, Acyclic585/19, Containing aromatic ring585/24, Aromatic585/323, Including an alkylation step585/329, Including polymerization of olefin585/455, Resulting side-chain restricted to more than five C atoms, e.g., "detergent alkylate", etc.585/467, Using metal, metal oxide, or hydroxide catalyst585/533Al oxide, e.g., aluminosilicate, etc.ExaminersPrimary: Davis, Curtis R.Attorney, Agent or FirmForeign Patent References
International ClassesC10L 001/16C07C 002/64 AbstractA process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under oligomerization/polymerization conditions with siliceous acidic ZSM-23 zeolite having Bronsted acid activity; wherein the zeolite has acidic pore activity and wherein the zeolite surface is rendered substantially inactive for acidic reactions. The zeolite surface can be neutralized by a bulky pyridine compound having an effective cross-section larger than the zeolite pore. The preferred deactivating agent is 2,4,6-collidine, which may be applied to the zeolite as a pretreatment or added with olefin feed in a continuous process. The olefin oligomers may be used as alkylating agents to prepare biodegradable alkylbenzenes and alkylphenylsulfonates. A preferred catalyst for this alkylation reaction is dealuminized mordenite.Field of SearchComponent of indefinite molecular weight greater than 150Polymer Containing aromatic ring Acyclic Containing aromatic ring Aromatic Including an alkylation step Including polymerization of olefin Resulting side-chain restricted to more than five C atoms, e.g., "detergent alkylate", etc. Al oxide, e.g., aluminosilicate, etc. Processes including alkylation of a benzene ring, and the products thereof Sulfonation processes |
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