Group Viii Metal Patents (Class 585/531)
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Patent number: 5011990Abstract: Compounds having the formula ##STR1## wherein R is an aromatic or aliphatic group; R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, C.sub.1-4 alkyl or phenyl; X is halogen; and Y is halogen or an aromatic group; are prepared in a regioselective manner by treating a compound having the formula ##STR2## with a catalytic amount of a palladium(O) or a palladium(II) transition metal catalyst.Type: GrantFiled: December 27, 1988Date of Patent: April 30, 1991Inventor: Raymond A. Felix
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Patent number: 5002915Abstract: A process for regenerating solid particulate catalyst used in fixed bed hydrocarbon conversion processes, such as the shape selective zeolite conversion of olefins to gasoline and diesel fuel. Regeneration is achieved using a portion of a flue gas stream to regenerate catalyst and preheat feedstock. Economies in equipment and operation are realized by employing a once-through configuration for the regenerator gas stream.Type: GrantFiled: May 30, 1989Date of Patent: March 26, 1991Assignee: Mobil Oil Corp.Inventors: Mohsen N. Harandi, Hartley Owen
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Patent number: 5003125Abstract: The present invention relates to a process for the oligomerization of light olefins or mixtures thereof, wherein a reaction is brought about between olefins with a carbon number of between 2 and 20 and synthetic zeolites containing silicon, titanium and gallium oxides which in the calcined, anyhdrous state have the following empirical formula:pHGaO.sub.2 .multidot.qZTiO.sub.2 .multidot.SiO.sub.2,where p is of a value greater than zero and less than or equal to 0.050 and q is of value greater than zero and less than or equal to 0.025, with the H.sup.+ of HGaO.sub.2 being at least partly exchangeable or exchanged with cations.Type: GrantFiled: June 28, 1989Date of Patent: March 26, 1991Assignees: Eniricerche S.p.A., AGIP S.p.A.Inventors: Aldo Giusti, Stefano Gusi, Giuseppe Bellussi, Vittorio Fattore
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Patent number: 4996383Abstract: In processes for dimerization of olefins in the presence of potassium catalysts, plugging of the catalyst bed may be avoided by purging with certain aliphatic hydrocarbons.Type: GrantFiled: March 26, 1990Date of Patent: February 26, 1991Assignee: Phillips Petroleum CompanyInventors: Jeffrey R. Burkinshaw, Leo L. Gingerich
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Patent number: 4946579Abstract: A crystalline, galliosilicate molecular sieve having the erionite-type structure and the following composition expressed in terms of oxide mole ratios in the anhydrous state:Ga.sub.2 O.sub.3 :xSiO.sub.2 :yM.sub.2 O:zN.sub.2 O:tQ.sub.2 Owhere M is an alkali metal, preferably sodium, N is an alkali metal other than M, preferably potassium, Q is a cation derived from the templating agent used in synthesizing the galliosilicate molecular sieve, preferably a choline cation, x equals 5.5 to 30, y equals 0.1 to 0.9, z equals 0.1 to 0.9, t equals 0.1 to 0.6 and y+z+t equals about 1.0. The crystalline, galliosilicate molecular sieve of the invention may be employed, after reducing its alkali metal content, as a component of a catalyst which can be used in a variety of chemical conversion processes, preferably hydrocarbon conversion processes, and most preferably hydrodewaxing, hydrocracking and isomerization processes.Type: GrantFiled: May 1, 1989Date of Patent: August 7, 1990Assignee: Union Oil Company of CaliforniaInventor: Mario L. Occelli
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Patent number: 4939313Abstract: Catalyst supports, catalyst systems, methods for the preparation thereof, and dimerization process therewith are provided catalyst supports are prepared from an alkali metal carbonate, water, water soluble ketone and optionally at least one carbonaceous compound. Catalyst systems comprise at least one elemental alkali metal deposited on the catalyst support. Optionally, the catalyst system further comprises at least one promoter.Type: GrantFiled: November 3, 1989Date of Patent: July 3, 1990Assignee: Phillips Petroleum CompanyInventor: Charles A. Drake
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Patent number: 4902845Abstract: Catalyst activity life of an iron oxide-containing catalyst is extended by contacting such catalyst with a feedstream containing about 0.0001 to about 0.01 mole of oxygen per mole of feed in the substantial absence of an oxidation catalyst.Type: GrantFiled: November 21, 1988Date of Patent: February 20, 1990Assignee: Amoco CorporationInventors: Dae K. Kim, George A. McConaghy
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Patent number: 4876410Abstract: Catalyst supports, catalyst systems, methods for the preparation thereof, and dimerization process therewith are provided catalyst supports are prepared from an alkali metal carbonate, water, alcohol, and optionally at least one carbonaceous compound. Catalyst systems comprise at least one elemental alkali metal deposited on the catalyst support. Optionally, the catalyst system further comprises at least one promoter.Type: GrantFiled: November 14, 1988Date of Patent: October 24, 1989Assignee: Phillips Petroleum CompanyInventors: Warren M. Ewert, Donald H. Kubicek, Charles A. Drake
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Patent number: 4855528Abstract: There are disclosed catalysts and process for oligomerizing C.sub.3 -C.sub.12 olefins in the liquid phase at 50.degree. C.-150.degree. C. in the presence of a nickel containing zeolite catalyst, the zeolite being a Cs or Ba exchanged CSZ-1, high silica ultra-stable faujasite and zeolites isostructural with mazzite.Type: GrantFiled: February 5, 1988Date of Patent: August 8, 1989Assignee: Exxon Chemical Patents Inc.Inventors: David A. Young, David E. Vaughan, Roy L. Pruett, Mafer E. Tunison
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Patent number: 4835331Abstract: Olefinic feedstocks which contain catalyst contaminants or poisons such as sulfur containing compounds may be oligomerized to a desired product by effecting the reaction in the presence of an added amount of hydrogen to the feedstock. The catalyst which is employed to effect this oligomerization will remain stable and will not deactivate due to the presence of the aforementioned poisons. The catalyst composite will comprise a porous support which has been impregnated with a catalytically effective amount of an iron group metal compound and, if so desired, a compound containing a metal of the Group IVA of the Periodic Table. In addition, the catalyst composite will also contain in combination therewith, a catalytically effective amount of an alkyl aluminum compound and, if so desired, an aluminum alkoxy or aluminum halide compound.Type: GrantFiled: May 23, 1988Date of Patent: May 30, 1989Assignee: UOPInventors: Harold U. Hammershaimb, Robert R. Frame
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Patent number: 4831201Abstract: A process is disclosed for oligomerizing light olefins or mixtures thereof, which consists in reacting said olefins, possibly diluted with an inert gas, by means of synthetic zeolites containing oxides of silicon, titanium and iron, having, in their calcined and anhydrous state, the following empirical formula:pHFeO.sub.2. qTiO.sub.2.SiO.sub.2,wherein p has a value larger than zero and smaller than, or equal to, 0.050 and g has a value larger than zero and smaller than, or equal to 0.025, and the H.sup.+ of HFeO.sub.2 can be at least partially substitutable or substituted with cations.Type: GrantFiled: May 3, 1988Date of Patent: May 16, 1989Assignees: Eniricerche S.P.A., AGIP S.P.A.Inventors: Aldo Giusti, Stefano Gusi, Giuseppe Bellussi, Vittorio Fattore
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Patent number: 4816610Abstract: The invention concerns a procedure for manufacturing short-chain linear .alpha.-olefines, in particular 1-butylene, selectively from ethylene. A nickel chelate in which the ligand is diphenyl (2-carboxymethyl) phosphine, diphenyl (2-carboxyethyl) phosphine, or an alkali metal salt of these, or an alkali metal salt of diphenyl (2-hydroxyethyl) phosphine, with or without a promoter, is used for a catalyst.Type: GrantFiled: February 12, 1988Date of Patent: March 28, 1989Assignee: Neste OyInventors: Salme Koskimies, Leena Rantanen, Jouni Kivi, Erkki Halme
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Patent number: 4804796Abstract: Improved, heterogeneous, refractory catalysts are in the form of gas-impervious, hollow, thin-walled spheres (10) suitable formed of a shell (12) of refractory such as alumina having a cavity (14) containing a gas at a pressure greater than atmospheric pressure. The wall material may be itself catalytic or a catalytically active material coated onto the sphere as a layer (16), suitably platinum or iron, which may be further coated with a layer (18) of activator or promoter. The density of the spheres (30) can be uniformly controlled to a preselected value within .+-.10 percent of the density of the fluid reactant such that the spheres either remain suspended or slowly fall or rise through the liquid reactant.Type: GrantFiled: April 8, 1987Date of Patent: February 14, 1989Assignee: California Institute of TechnologyInventors: Taylor G. Wang, Daniel D. Elleman, Mark C. Lee, James M. Kendall, Jr.
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Patent number: 4777314Abstract: New nickel composition having substantial solubility in hydrocarbons and prepared by reacting at least one inorganic divalent nickel compound, at least one halogenoacetic acid and at least one ester of the formula R.sub.1 COO R.sub.2 wherein R.sub.1 is hydrogen or hydrocarbyl and R.sub.2 is hydrocarbyl. The resultant composition can be used in admixture with a hydrocarbylaluminum halide as catalyst for olefin dimerization.Type: GrantFiled: November 12, 1987Date of Patent: October 11, 1988Assignee: Institut Francais du PetroleInventors: Gerard Provin, Alain Forestiere, Dominique Commereuc
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Patent number: 4753720Abstract: Olefin containing gasolines are upgraded to improve octane number with less than 5 wt.% yield loss by contacting such gasolines at elevated temperatures with acidic zeolites having alpha values between 5 and 100.Type: GrantFiled: April 16, 1987Date of Patent: June 28, 1988Assignee: Mobil Oil CorporationInventor: Roger A. Morrison
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Patent number: 4749675Abstract: The present invention relates to a catalyst for the selective dimerization of ethylene or of propylene into monoolefines of the type based on nickel on a silica support whose active sites are complexes of the Ni.sup.+ ion. This catalyst is characterized in that practically the whole of the nickel is present in the form of Ni.sup.+ complexes co-ordinated with the oxygen of the surface of the silica support and whose co-ordination sphere comprises one or two trialkylphosphine ligands. The invention also relates to a process for the preparation of these catalysts and to a process of dimerization employing them.Type: GrantFiled: June 27, 1986Date of Patent: June 7, 1988Assignee: Centre National de la Recherche Scientifique (CNRS)Inventors: Daniele Olivier, Feng X. Cai, Christine Lepetit, Maggy Kermarec
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Patent number: 4740652Abstract: Olefinic hydrocarbons which contain from 2 to about 6 carbon atoms may be oligomerized to form oligomers of desired configuration utilizing a process which comprises contacting said olefins with a catalyst which comprises a porous support containing a catalytically effective amount of a non-stoichiometric hydrogen and oxygen-containing iron group metal in combination with a catalytically effective amount of an alkyl aluminum compound and an aluminum halide. Oligomerization conditions which are employed to effect the process will include temperatures in the range of from about -20.degree. to about 120.degree. C. and a pressure in the range of from about 350 to about 1,000 pounds per square inch gauge.Type: GrantFiled: February 27, 1987Date of Patent: April 26, 1988Assignee: UOP Inc.Inventor: Robert R. Frame
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Patent number: 4740645Abstract: A continuous multi-stage catalytic process for converting ethene-rich lower olefinic feedstock to heavier liquid hydrocarbon product, comprising the steps ofcontacting ethene-rich feedstock at elevated temperature and moderate pressure in a primary stage reaction zone with a first catalyst comprising shape selective medium pore zeolite to convert at least a portion of the lower olefinic components to intermediate olefinic hydrocarbons;cooling primary stage reaction effluent by introducing a stream of cold water sufficient to reduce the primary stage effluent to second stage reaction temperature; andcontacting unreacted ethene and at least a portion of the intermediate olefinic hydrocarbons from the primary stage with nickel-containing shape selective medium pore zeolite oligomerization component at elevated temperature to provide a heavier hydrocarbon effluent stream comprising gasoline and/or distillate range hydrocarbons.Type: GrantFiled: September 5, 1986Date of Patent: April 26, 1988Assignee: Mobil Oil CorporationInventors: William E. Garwood, Frederick J. Krambeck, John D. Kushnerick, Samuel A. Tabak
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Patent number: 4737480Abstract: Olefinic feedstocks which contain catalyst contaminants or poisons such as sulfur-containing compounds may be oligomerized to a desired oligomer and configuration of the oligomer by utilizing a catalyst which is stable and will not deactivate due to the presence of the aforementioned poisons. The catalyst comprises a porous support which has been impregnated with a catalytically effective amount of a non-stoichiometric hydrogen and oxygen-containing iron group metal compound and a compound containing a metal of Group IVA of the Periodic Table. In addition, the catalyst composite will also contain in combination therewith, a catalytically effective amount of an alkyl aluminum compound and an aluminum alkoxy/aluminum halide compound.Type: GrantFiled: March 12, 1987Date of Patent: April 12, 1988Assignee: UOP Inc.Inventors: Robert R. Frame, Tamotsu Imai
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Patent number: 4737479Abstract: An olefinic feedstock containing contaminants such as oxygenates may be oligomerized to a desired oligomer which contains a particular configuration. The process may be effected by utilizing a catalyst which comprises a porous support containing a catalytically effective amount of a non-stoichiometric hydrogen and oxygen-containing iron group metal compound in combination with a catalytically effective amount of an alkyl aluminum compound and an activator comprising an aluminum alkoxide. The presence of the latter compound in the catalyst compound will permit the catalyst to maintain its activity and stability over a relatively long period of time.Type: GrantFiled: March 13, 1987Date of Patent: April 12, 1988Assignee: UOP Inc.Inventors: Robert R. Frame, Paul T. Barger
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Patent number: 4717782Abstract: A continuous catalytic process for converting ethene-rich olefinic feedstock containing reducing gas to heavier liquid hydrocarbon product, comprising the steps ofcontacting the ethene-rich feedstock at elevated temperature in a catalytic reaction zone with a zeolite catalyst comprising a nickel-ethene oligomerization component and a shape-selective medium pore acid zeolite oligomerization component to convert at least a portion of the lower olefinic components to heavier olefinic hydrocarbons; andfeeding water with the feedstock in sufficient amount to prevent substantial reduction of the nickel component.Type: GrantFiled: August 5, 1986Date of Patent: January 5, 1988Assignee: Mobil Oil CorporationInventors: William E. Garwood, John D. Kushnerick, Samuel A. Tabak
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Patent number: 4711970Abstract: A method for increasing the total amount of lattice metal in the framework of a particular porous inorganic crystalline composition, its conversion to hydrogen or hydronium form and use thereof as a catalyst component having enhanced catalytic activity for conversion of paraffins and/or olefins to higher hydrocarbons is provided.Type: GrantFiled: January 8, 1986Date of Patent: December 8, 1987Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, Joseph N. Miale
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Patent number: 4711969Abstract: A process for oligomerizing ethylene using a nickel ylide catalyst substituted with a sulfonato group, wherein the oligomerization is carried out in the presence of methanol and water.Type: GrantFiled: August 25, 1986Date of Patent: December 8, 1987Assignee: Chevron Research CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4686315Abstract: A process for oligomerizing ethylene using a bicomponent catalyst comprising a nickel ylide substituted with a sulfonato group and an alkyl aluminum alkoxide.Type: GrantFiled: December 12, 1986Date of Patent: August 11, 1987Assignee: Chevron Research CompanyInventors: David L. Beach, Yury V. Kissin
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Patent number: 4634793Abstract: A process for the dimerization in the liquid phase of an aliphatic mono-olefin having 2 to about 12 carbon atoms with a catalytic system formed by combining, in the presence of water, an alcohol or a carboxylic acid,a. a palladium compound,b. a chelate ligand having as coordinating atoms at least two Group Va atoms which are connected through a chain comprising 2 to about 6 carbon atoms, andc. a compound containing an anion of an acid, except hydrohalogenic acids.Type: GrantFiled: October 3, 1985Date of Patent: January 6, 1987Assignee: Shell Oil CompanyInventor: Eit Drent
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Patent number: 4628138Abstract: An improved heterogeneous catalyst effective to catalyze the oligomerization of ethylene is formed by hydrogenating bis(.eta..sup.5 -cyclopentadienyl) nickel (nickelocene) onto an omega zeolite support in the presence of a small, but effective amount of a promoter. The promoters are oxides of nickel, iron or copper and mixtures thereof. The catalyst is particularly effective in terms of selectivity and reactivity in catalyzing the formation of 1-butene from ethylene.Type: GrantFiled: September 20, 1985Date of Patent: December 9, 1986Assignee: Ashland Oil, Inc.Inventors: Kenneth W. Barnett, Mary J. Brown
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Patent number: 4628139Abstract: An improved heterogeneous catalyst effective to catalyze the oligomerization of ethylene is formed be depositing a bis(1,5-cyclooctadiene)Ni(O) compound onto an omega zeolite or type Y zeolite support. The catalyst is used to oligomerize olefins. The catalyst is particularly effective in terms of selectivity and reactivity in catalyzing the formation of 1-butene from ethylene.Type: GrantFiled: September 20, 1985Date of Patent: December 9, 1986Assignee: Ashland Oil, Inc.Inventor: Kenneth W. Barnett
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Patent number: 4613580Abstract: Olefins may be oligomerized to a desired oligomer and configuration of the oligomer by utilizing a catalyst which comprises a porous support containing a catalytically effective amount of an hydrate of an iron group metal salt in which the mole ratio of water of hydration to iron group metal is greater than 0.5:1 in combination with a catalytically effective amount of an alkyl aluminum compound and an aluminum halide.Type: GrantFiled: May 23, 1985Date of Patent: September 23, 1986Assignee: UOP Inc.Inventor: Robert R. Frame
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Patent number: 4613726Abstract: Nickel, aluminum and chlorine derivatives which remain dissolved in olefin oligomers, after oligomerization in the presence of a nickel, aluminum, and chlorine-containing catalysts, are removed by successive treatments with:(a) anhydrous ammonia,(b) an aqueous solution of alkali metal hydroxide, a treatment with an aqueous solution containing at least one hydroxy-acid or at least one alkali metal salt of said hydroxyacid being performed after treatment (a) and before or after or simultaneously with treatment (b), and preferably a treatment with oxygen or with an oxygen-containing gas being performed before or after treatments (a) and (b) or simultaneously with these treatments. Preferably, tartaric acid or an alkali metal tartrate is used.Type: GrantFiled: June 27, 1985Date of Patent: September 23, 1986Assignee: Institut Francais du PetroleInventors: Yves Chauvin, Dominique Commereuc, Daniel Cruypelinck, Francois Hugues, Georges Vidouta
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Patent number: 4558170Abstract: Polyisobutylene is prepared from a mixed C.sub.4 hydrocarbon feedstream using an AlCl.sub.3 --HCl catalyst system wherein the HCl is introduced separately into the feedstream to form organochloride in the feedstream. Polymer product having a very narrow molecular weight distribution is obtained over the Mn range of 700 to 3,000. Dispersants derived from this polyisobutylene exhibit substantially improved performance in lubricating oil compositions.Type: GrantFiled: September 20, 1984Date of Patent: December 10, 1985Assignee: Exxon Research & Engineering Co.Inventors: Frank J. Chen, Darrell W. Brownawell
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Patent number: 4554396Abstract: A process for upgrading lower olefin to produce heavier hydrocarbons having a substantially linear molecular conformation comprising contacting olefinic feedstock under oligomerization conditions at reaction temperature and pressure favorable to formation of higher molecular weight aliphatic hydrocarbons with a shape selective medium pore acidic crystalline ferrosilicate zeolite catalyst having a major portion of zeolitic iron in tetrahedral coordination therein.Type: GrantFiled: September 18, 1984Date of Patent: November 19, 1985Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, Cynthia T. W. Chu
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Patent number: 4544790Abstract: Catalysts and proceses for the dimerization or co-dimerization of dimerizable olefins are provided. Catalysts consist essentially of at least one elemental alkali metal on one of several potassium carbonate-containing supports optionally in the presence of at least one promoter selected from the group consisting of elemental copper, elemental cobalt and finely divided stainless steel.Type: GrantFiled: July 26, 1984Date of Patent: October 1, 1985Assignee: Phillips Petroleum CompanyInventor: Charles A. Drake
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Patent number: 4511750Abstract: An olefin oligomerization catalyst containing nickel sulfate on a porous support, activated by calcining in an oxidizing atmosphere, followed by inert gas treatment at a lower but elevated temperature, is useful for oligomerizing propylene and butenes.Type: GrantFiled: June 14, 1984Date of Patent: April 16, 1985Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4503282Abstract: A process to convert a substantially linear alkene, such as n-butene, to isomerized products comprises contacting such alkene under conversion conditions comprising a temperature of above 300.degree. C. to about 650.degree. C. and an alkene reactant partial pressure of less than about 0.4 atmospheres with an AMS-1B borosilicate catalyst composition containing at least 50 wt. % hydrogen from AMS-1B incorporated in an inert binder.Type: GrantFiled: September 24, 1982Date of Patent: March 5, 1985Assignee: Standard Oil Company (Indiana)Inventor: David L. Sikkenga
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Patent number: 4499325Abstract: A process to convert an alkene to oligomerized, aromatized and isomerized products comprises contacting such alkene under conversion conditions with an AMS-1B borosilicate catalyst composition.Type: GrantFiled: September 24, 1982Date of Patent: February 12, 1985Assignee: Standard Oil Company (Indiana)Inventors: Marvin R. Klotz, Edwin F. Peters
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Patent number: 4499326Abstract: A process to convert a normal butene to isomerized products comprises contacting such alkene under conversion conditions with a hydrogen form AMS-1B borosilicate catalyst composition at a conversion temperature below 250.degree. C.Type: GrantFiled: September 24, 1982Date of Patent: February 12, 1985Assignee: Standard Oil Company (Indiana)Inventor: John L. Melquist
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Patent number: 4481145Abstract: Unsaturated acids in rosin or tall oil are disproportionated by heating the rosin or tall oil with a catalyst comprising iodine and an iron compound using ammonia, an ammonium salt or an amine as an additional component of the catalyst. Use of this additional component gives a remarkable and unexpected increase in reaction rate and enables the preparation of a disproportionated rosin containing 0.5% or less residual abietic acid, as measured by ultraviolet spectroscopy.Type: GrantFiled: January 31, 1983Date of Patent: November 6, 1984Assignee: Enichem Elastomers LimitedInventor: Donald G. Timms
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Patent number: 4465788Abstract: An olefin oligomerization catalyst containing nickel sulfate on a porous support, activated by calcining in an oxidizing atmosphere, followed by inert gas treatment at a lower but elevated temperature, is useful for oligomerizing propylene and butenes.Type: GrantFiled: September 10, 1982Date of Patent: August 14, 1984Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4436946Abstract: This invention is a process for the selective conversion of propylene and the n-butylenes to their dimers, in the presence of a heterogeneous palladium cyanide catalyst. The product dimers are predominantly of straight-chain structure.Type: GrantFiled: November 19, 1982Date of Patent: March 13, 1984Assignee: Shell Oil CompanyInventor: Edgar J. Smutny
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Patent number: 4423267Abstract: Iron sulfate supported on alumina or silica alumina and cobalt sulfate supported on alumina are catalysts used for olefin oligomerization. These new catalysts allow olefin oligomerizations to be carried out at lower temperatures than many other known catalysts. The reaction is normally carried out under sufficient pressure to keep the olefin present as a liquid. In addition, the catalysts provide excellent selectivity for the formation of lower olefins and require no water to maintain activity, thereby leading to increased productivity by avoiding problems of polymerization, coking and reactor plugging.Type: GrantFiled: June 1, 1982Date of Patent: December 27, 1983Assignee: Conoco Inc.Inventors: Robin M. Dowling, David P. Higley
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Patent number: 4398049Abstract: A catalyst composition is manufactured by admixing a hydrocarbyl aluminum halide of a nickel compound of the formula (R.sub.1 COO)(R.sub.2 COO)Ni, where R.sub.1 is hydrocarbyl with at least 5 carbon atoms and R.sub.2 is haloalkyl of 1-3 carbon atoms. Olefins such as ethylene, propylene and butenes can be oligomerized, for example, dimerized and trimerized, with the above catalyst composition.Type: GrantFiled: September 28, 1982Date of Patent: August 9, 1983Assignee: Institut Francais du PetroleInventors: Dominique Le Pennec, Dominique Commereuc, Yves Chauvin
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Patent number: 4382153Abstract: Ethylene is oligomerizied by reacting ethylene under an elevated pressure greater than about 700 pounds per square inch gauge (4826 kPa) in methanol in contact with a nickel ylide defined by the following Formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.Type: GrantFiled: April 5, 1982Date of Patent: May 3, 1983Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4382132Abstract: A process for the high pressure polymerization of ethylene in a reactor in the presence of conventional free radical generating initiators, wherein the initiator material is admixed with certain additives in small concentrations to lower the polymerization initiation temperature.Type: GrantFiled: June 1, 1981Date of Patent: May 3, 1983Assignee: El Paso Polyolefins CompanyInventors: Joseph M. Kelley, John J. Roderick
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Patent number: 4320243Abstract: At least one of propene and butene is oligomerized, preferably dimerized, in an elongate cylindrical reaction zone. A recycle flow and the fresh feed charge are injected tangentially into said reaction zone. The catalyst preferably comprises a nickel compound and a hydrocarbyl aluminum halide.Type: GrantFiled: March 27, 1979Date of Patent: March 16, 1982Assignee: Institut Francais du PetroleInventors: Yves Chauvin, Jean Gaillard, Gerard Leger, Hugo Van Landeghem
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Patent number: 4310716Abstract: Ethylene is oligomerized by reacting ethylene in methanol under oligomerization conditions in contact with a nickel ylide defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.Type: GrantFiled: August 18, 1980Date of Patent: January 12, 1982Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4301318Abstract: Ammonium hydroxide is used to remove nickel ylide residue from an oligomerization reaction product obtained by contacting ethylene with a nickel ylide catalyst under oligomerization conditions. The oligomerization reaction product is contacted with ammonium hydroxide to obtain a product composed of two layers, an upper layer containing normal alpha olefins and a lower layer containing nickel ylide residue. The two layers are then separated from each other to recover the desired normal alpha olefins.Type: GrantFiled: November 25, 1980Date of Patent: November 17, 1981Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4299686Abstract: A method is provided for preparing a synthetic crystalline aluminosilicate zeolite Alpha containing platinum-group metal within the zeolite pores as synthesized, thereby providing shape-selective hydrogenation activity. The method comprises synthesizing the zeolite from a reaction mixture of controlled composition including a source of a cationic platinum-group metal complex. Catalysts made with the zeolite synthesized in accordance hereto are stable, both thermally and in the presence of steam, and exhibit beneficial shape-selectivity in catalysis and absorption.Type: GrantFiled: September 12, 1979Date of Patent: November 10, 1981Assignee: Mobil Oil CorporationInventor: Guenter H. Kuehl
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Patent number: 4293727Abstract: Ethylene is oligomerized by contacting ethylene under oligomerization conditions with a nickel ylide defined by the following Formula I: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.Type: GrantFiled: August 18, 1980Date of Patent: October 6, 1981Assignee: Gulf Research & Development CompanyInventors: David L. Beach, James J. Harrison
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Patent number: 4214112Abstract: A process for producing an olefin oligomer comprising polymerizing olefin having not less than 6 carbon atoms in the presence of a catalyst consisting essentially of (a) aluminum halide, (b) polyhydric alcohol derivative of which alcohol the hydrogen atoms of the entire hydroxyl groups are substituted with either one or both of alkyl and acyl groups and (c) a nickel compound or cobalt compound is provided. Thus, an olefin oligomer having a narrow distribution of the polymerization degree and good properties can be obtained with a high selectivity by using a catalyst capable of being easily handled.Type: GrantFiled: March 27, 1979Date of Patent: July 22, 1980Assignee: The Lion Fat & Oil Co., Ltd.Inventors: Hiroshi Mandai, Anri Tominaga, Yoshikazu Yoshimura, Hiroshi Isa
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Patent number: 4197416Abstract: 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 rhenium component, a cobalt component, a germanium component, and an alkali or alkaline earth component with a porous carrier material in amounts sufficient to result in a composite containing about 0.01 to about 2 wt. % platinum group metal, about 0.01 to about 2 wt. % rhenium, about 0.1 to about 5 wt. % cobalt, about 0.001 to about 1 wt. % germanium and about 0.1 to about 5 wt. % alkali metal or alkaline earth metal.Type: GrantFiled: September 22, 1978Date of Patent: April 8, 1980Assignee: UOP Inc.Inventor: George J. Antos