The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 21, 1980
Filed:
Feb. 05, 1979
Dzantemir N Tmenov, Kiev, SU;
Nikolai I Svintsov, Kiev, SU;
Lidia P Shapovalova, Kiev, SU;
Albert V Tabakov, Kiev, SU;
Mikhail L Dvoretsky, Kiev, SU;
Gavril I Vasiliev, Novokuibyshevsk Kuibyshevskoi oblasti, SU;
Gennady P Zhestovsky, Novokuibyshevsk Kuibyshevskoi oblasti, SU;
Valentina D Kandalova, Moscow, SU;
Boris S Korotkevich, Moscow, SU;
Anatoly I Lukashov, Moscow, SU;
Valery P Lukyanenko, Kiev, SU;
Roman I Polataiko, Kiev, SU;
Evgeny A Malov, Novokuibyshevsk Kuibyshevskoi oblasti, SU;
Jury A Shmuk, Moscow, SU;
Other;
Abstract
A process for producing unsaturated hydrocarbons which comprises contacting a paraffin, monoolefin and/or alkylaromatic compounds with a catalyst at a temperature within the range of from 400.degree. to 700.degree. C. in the presence of an inert gas and/or steam. The catalyst comprises a carrier having deposited thereonto an oxide of molybdenum in an amount of from 5 to 35% by weight of the catalyst. As the carrier, use is made of a granulated porous crystalline silica modified with magnesia in an amount of from 1 to 20% by weight of the carrier; a granulated magnesium-titanium carrier consisting of 50 to 95% by weight of MgO and 50 to 5% by weight of TiO.sub.2, or a granulated magnesium-aluminum carrier consisting of 70 to 95% by weight of MgO and 5 to 30% by weight of Al.sub.2 O.sub.3. Through the spent catalyst an oxygen-containing gas is passed at a temperature within the range of from 400.degree. to 700.degree. until catalytic activity is restored to the catalyst. The process, according to the present invention, ensures a high selectivity; substantially simplifies temperature control in the reaction zone; avoids the possibility of forming of a hazardous mixture of hydrocarbons with oxygen; and simplifies purification of waste waters.