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Class 585/379 - By dehydrogenation


Subclass of Class 585 - Chemistry of hydrocarbon compounds
Definition: Subject matter wherein the synthesis involves removal of
No. of patents: 51
Last issue date: 06/17/2008


1    
NumberTitleIssue Date
7388119Method for the hydrogenation of aromatic compounds with hydrogen containing residual gas
The present invention relates to a process for the hydrogenation of substituted or unsubstituted, monocyclic or polycyclicaromatics to form the corresponding cycloaliphatics, in particular of benzene to cyclohexane, by bringing the aromatic into contact with a hydro...
06/17/2008
7160839Catalyst for purifying nitrogen oxides
A catalyst for purifying NOx is provided which efficiently decomposes and purify the NOx in an exhaust gas in an oxygen-excess atmosphere, excels in resistance to heat and in durability in a high temperature range under a high-temperature oxidizing atmosphere and in...
01/09/2007
7151199Hydrocarbon conversion processes using non-zeolitic molecular sieve catalysts
Hydrocarbon or oxygenate conversion process in which a feedstock is contacted with a non zeolitic molecular sieve which has been treated to remove most, if not all, of the halogen contained in the catalyst. The halogen may be removed by one of several methods. One m...
12/19/2006
7071371Gel catalysts and methods for their use in catalytic dehydrogenation processes
A gel composition substantially contained within the pores of a solid material is disclosed for use as a catalyst or as a catalyst support in dehydrogenation and dehydrocyclization processes. ...
07/04/2006
6582589Process for the catalytic dehydrogenation of a light alkane
The present invention relates to a new catalyst support material comprising a mixed oxide consisting essentially of a divalent metal and a trivalent metal in a substantially homogeneous phase, the mixed oxide being a calcination product of a hydrotalcite-...
06/24/2003
6380450Process for producing indene
Tetrahydroindene is dehydrogenated in a vapor phase in the presence of a metallic catalyst, e.g., a nickel-molybdenum catalyst, to produce indene, which is industrially useful in high yield while inhibiting the catalyst from suffering a decrease in activi...
04/30/2002
6313068Synthesis methods, complexes and delivery methods for the safe and convenient storage, transport and application of compounds for inhibiting the ethylene response in plants
The present invention generally relates to the regulation of plant physiology, in particular to methods for inhibiting the ethylene response in plants or plant products, and has three embodiments. The first embodiment relates to methods of minimizing impu...
11/06/2001
6162758Process for dehydrogenating secondary cyclic alcohols
In the dehydrogenation of secondary alcohols in the presence of a catalyst comprising zinc oxide and calcium carbonate at elevated temperature in the gas phase, secondary cyclic alcohols are used and the dehydrogenation is carried out in the presence of h...
12/19/2000
6017849Synthesis methods, complexes and delivery methods for the safe and convenient storage, transport and application of compounds for inhibiting the ethylene response in plants
The present invention generally relates to the regulation of plant physiology, in particular to methods for inhibiting the ethylene response in plants or plant products, and has three embodiments. The first embodiment relates to methods of minimizing impu...
01/25/2000
5962757Dehydrogenation catalyst and process
Dehydrogenation catalysts are prepared by a predoping process comprising, mixing iron oxide materials with a predopant to form a blend of iron oxide and predopant and heating the blend to the predoping conditions and thereafter forming a catalyst. The cat...
10/05/1999
5856541Process for preparing 1 3-disubstituted cyclopentadienyl ligands and transition metal complexes thereof
The invention relates to an improved process which, starting from 2-cyclopenten-1-ones substituted in the 3-position, gives a high yields of 1,3-dialkylcyclopentadienes which can be directly metallated and reacted to give the corresponding 1,3-dialkylcycl...
01/05/1999
5414181Integrated catalytic cracking and olefin producing process
Disclosed is a method which combines catalytic cracking and olefin production using a coked catalytic cracking catalyst to dehydrogenate an alkane feed stream and form an olefin rich product stream. Preferably, the coked catalytic cracking catalyst has a ...
05/09/1995
5365001Method for preparing dialkylnaphthalene
A method for preparing a dialkylnaphthalene in one step by contacting an dialkylbenzene compound with a solid catalyst in a gas or liquid phase in the presence of hydrogen, using a catalyst having composition (I) or (II) below: (1) (M1)a.
11/15/1994
5284986Upgrading of normal pentane to cyclopentene
This invention is a process of converting n-pentane to cyclopentene. In accordance with a preferred embodiment n-pentane feed is converted in a dual temperature stage-dual catalyst process without interstage processing of the first-stage product mixture....
02/08/1994
5283385Upgrading of normal pentane to cyclopentane
This invention is a process of converting n-pentane to cyclopentane. In accordance with a preferred embodiment of the invention, n-pentane feed is converted in dual temperature stage process without interstage processing of the first stage product mixture...
02/01/1994
5097086Liquid catalyst for oxidative coupling reactions
A liquid catalyst composition for the oxidative coupling of methane and other hydrocarbon compounds to produce higher hydrocarbons and for the oxidative dehydrogenation of aliphatic and alicyclic hydrocarbon compounds, aliphatic and alicyclic substituted ...
03/17/1992
4922050Catalytic dehydrogenation of hydrocarbons over indium-containing crystalline microporous materials
A catalytic dehydrogenation to produce the unsaturated analogs of aliphatic compounds with high process selectivity for the unsaturated analog production. The catalytic dehydrogenation comprises contacting the aliphatic compound, under dehydrogenation con...
05/01/1990
4863623Novel VI improver, dispersant, and anti-oxidant additive and lubricating oil composition containing same
An additive composition comprising a graft and amine-derivatized copolymer prepared from ethylene and at least one C3 -C10 alpha-monoolefin and, optionally, a polyene selected from non-conjugated dienes and trienes comprising from ab...
09/05/1989
4849567Catalytic dehydrogenation of hydrocarbons over indium-containing crystalline microporous materials
A catalytic dehydrogenation to produce the unsaturated analogs of aliphatic compounds with high process selectivity for the unsaturated analog production. The catalytic dehydrogenation comprises contacting the aliphatic compound, under dehydrogenation con...
07/18/1989
4676885Selective process for the upgrading of distillate transportation fuel
The invention disclosed herein comprises a process for the selective upgrading of combustion quality of a distillate transportation fuel by careful selective dehydrogenation, disproportionation and hydrogenation to convert cycloparaffinic materials contai...
06/30/1987
4644089Catalytic reforming of hydrocarbons
A process is provided for converting alkanes and cycloalkanes having up to 20 carbon atoms per molecule to a product comprising hydrogen gas and dehydrogenated and/or dehydrocyclized hydrocarbons, in the presence of a catalyst composition comprising vanad...
02/17/1987
4607129Catalytic dehydrocyclization and dehydrogenation of hydrocarbons
A process is provided for converting alkanes and cycloalkanes having up to 20 carbon atoms per molecule to a product comprising hydrogen gas and dehydrogenated and/or dehydrocyclized hydrocarbons, in the presence of a catalyst composition comprising divan...
08/19/1986
4568783Indenes by catalytic dehydrogenation of indanes
Disclosed is the vapor phase catalytic dehydrogenation of indanes to indenes over a Co--Mo oxide on alumina catalyst and in the presence of sulfur....
02/04/1986
4476339Dehydrogenation process using a rhodium catalyst
Steam dehydrocyclization of paraffinic hydrocarbons to aromatic hydrocarbons is effected in the presence of supported catalyst, typically bearing rhodium and preferably chromium and potassium, and characterized by a pH less than about 8....
10/09/1984
4447665Dehydrogenation reactions
A method is disclosed for dehydrogenating a parafinic or naphthenic compound and for dehydrocyclizing a paraffinic compound comprising a straight chain of at least 5 carbon atoms, comprising: contacting an aforesaid compound under dehydrogenation conditio...
05/08/1984
4438288Dehydrogenation of hydrocarbons with a halogen contacting step
This invention relates to a new process for dehydrogenating hydrocarbons utilizing a catalyst comprising a platinum group component, an alkali or alkaline earth component and a porous support material. After the catalyst is used to dehydrogenate hydrocarb...
03/20/1984
4430517Dehydrogenation process using a catalytic composition
This invention relates to a new catalyst for converting hydrocarbons. The catalyst comprises a platinum group component, a Group IVA component, especially tin, an alkali or alkaline earth component, more than 0.2 weight %, calculated on an elemental basis...
02/07/1984
4374046Hydrocarbon dehydrogenation method and nonacidic multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a nickel component, and a zinc compon...
02/15/1983
4371730Dehydrogenation of organic compounds with a zinc silicate catalyst
The catalytic dehydrogenation of at least one dehydrogenatable organic compound which has at least one ##STR1## grouping is carried out in the presence of a zinc silicate catalyst and in the substantial absence of free oxygen....
02/01/1983
4366091Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel attenuated superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyz...
12/28/1982
4353815Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel attenuated superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyz...
10/12/1982
4343724Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel attenuated superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyz...
08/10/1982
4341664Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel attenuated superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyz...
07/27/1982
4320019Multi-purpose additive compositions and concentrates containing same
Reaction products prepared by reacting (a) interpolymers of ethylene, one or more C3 -C8 ଱-monoolefins, and one or more polyenes selected from non-conjugated dienes and trienes, with (b) one or more olefinic carboxylic acid acylatin...
03/16/1982
4312792Hydrocarbon dehydrogenation with an attenuated superactive multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel attenuated superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyz...
01/26/1982
4289917Alkoxides of 2-pinanol
Alkali metal oxides of cis- and trans-2,6,6-trimethylbicyclo(3.1.1)-heptan-2-ol are surprisingly effective bases in organic reactions calling for the use of a strong base, especially those reactions wherein abstraction of a proton from attachment to ...
09/15/1981
4271323Process for hydrogenating unsaturated compounds
Process for hydrogenating unsaturated compounds in the liquid phase in the presence of a soluble catalyst obtained by reacting an organometal derivative or a metal hydride with a synergistic mixture of (a) a compound of zinc, zirconium, manganese, molybde...
06/02/1981
4235755Hydrocarbon dehydrogenation method and nonacidic multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a nonacidic catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, a lanth...
11/25/1980
4216346Hydrocarbon dehydrogenation method employing platinum-cobalt-zinc catalyst
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at dehydrogenation conditions, with a catalytic composite comprising a combination of catalytically effective amounts of a platinum group component, a cobalt component, and a zinc compon...
08/05/1980
4210769Hydrocarbon dehydrogenation with a superactive multimetallic catalytic composite for use therein
Dehydrogenatable hydrocarbons are dehydrogenated by contacting them, at hydrocarbon dehydrogenation conditions, with a novel superactive multimetallic catalytic composite comprising a combination of a catalytically effective amount of a pyrolyzed rhenium ...
07/01/1980
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