Antifoulants for thermal cracking processes
Patent 4507196 Issued on March 26, 1985. Estimated Expiration Date: 
August 16, 2003. 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.
August 16, 2003. 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 2063596 2168840 2336054 2551124 Protective metal oxide films on metal or alloy substrate surfaces susceptible to coking, corrosion or catalytic activity Antifoulants for thermal cracking processes Patent #: 4404087 InventorsApplicationNo. 06/523540 filed on 08/16/1983US Classes:208/48AA, Antifoulant additive208/106, Cracking507/90, PREVENTING CONTAMINANT DEPOSITS IN PETROLEUM OIL CONDUITS585/950Prevention or removal of corrosion or solid depositsExaminersPrimary: Gantz, Delbert E.Assistant: McFarlane, Anthony International ClassesC10G 9/00 (20060101)C10G 9/16 (20060101) AbstractThe formation of carbon on metals exposed to hydrocarbons in a thermal cracking process is reduced by contacting such metals with an antifoulant selected from the group consisting of an organic compound of chromium, a combination of tin and elemental chromium or an organic compound of chromium, a combination of antimony and elemental chromium or an organic compound of chromium and a combination of tin, antimony and elemental chromium or an organic compound of chromium. |
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