Catalyst Containing Inorganic Metal Patents (Class 585/530)
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Patent number: 4814519Abstract: A process for the production of ethers from an olefin containing feedstock. The process includes two-stages for the production of ethers which comprises, in a first stage, isomerizing an olefin containing feedstock over a thermally stable layered metal oxide type catalyst having interspathic polymeric silica between the layers so as to produce iso-olefins and then, in a second stage, reacting the resultant iso-olefins with alcohols in the presence of an etherification catalyst so as to produce ethers from the iso-olegins.Type: GrantFiled: December 30, 1987Date of Patent: March 21, 1989Assignee: Mobil Oil CorporationInventors: Mohsen N. Harandi, Hartley Owen
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Patent number: 4720475Abstract: Amorphous, substantially spherical silica particles obtained by acidic hydrolysis of substantially spherical synthetic crystalline calcium silicates having a size of from 20 to 120 microns are coated with a layer comprising silica and alumina. The silica particles obtained may be directly employed as catalysts for the oligomerization of olefins and, having been loaded with platinum, as hydrocracking catalysts.Type: GrantFiled: October 20, 1986Date of Patent: January 19, 1988Assignee: Redco N.V.Inventors: Octavian Anton, Dirk Van Wouwe, Georges Poncelet, Pierre Jacobs, Johan Martens
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Patent number: 4695669Abstract: Uranium di(poly-substituted cyclopentadienyl)-hydride complexes, as well as certain uranium (IV) and rare earth metal complexes, can be employed to catalyze the dimerization of propylene to form selectively 4-methyl-1-pentene.Type: GrantFiled: September 2, 1986Date of Patent: September 22, 1987Assignee: The Dow Chemical CompanyInventors: James C. Stevens, William A. Fordyce
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Patent number: 4687877Abstract: A process for the dimerization of propylene or a C.sub.4 olefin or the codimerization of ethylene with propylene or a C.sub.4 olefin comprising passing the olefin(s) in contact with a catalyst comprising (a) elemental potassium and (b) elemental copper, and (c) an alpha-alumina support therefor, wherein:(i) the potassium is present in the catalyst in an amount in the range of about 0.25 to about 30 percent by weight based on the weight of the catalyst;(ii) the ratio of copper to potassium, by weight, is in the range of about 0.1 to one to about 5 to one; and(iii) the process is carried out at a temperature in the range of about 75.degree. C. to about 225.degree. C. and at a pressure in the range of about atmospheric pressure to about 10,000 psig.Type: GrantFiled: June 30, 1986Date of Patent: August 18, 1987Assignee: Union Carbide CorporationInventors: William J. Bartley, Werner C. von Dohlen, deceased
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Patent number: 4665263Abstract: Olefin polymerization catalysts are described which are based on solid inorganic oxides (such as silica) and polychromium complexes (such as octakis(.mu.-trimethylsilylmethyl) tetrachromium(II)). Linear low density ethylene homopolymers with specific short chain branching as well as polymerization processes to make these polymers using the specific catalyst described are also disclosed.Type: GrantFiled: March 21, 1986Date of Patent: May 12, 1987Assignee: Phillips Petroleum CompanyInventors: Paul D. Smith, Eric T. Hsieh
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Patent number: 4605807Abstract: A method for converting normally gaseous olefins (esp., ethylene) to normally liquid hydrocarbons wherein the olefin feed is contacted with a siliceous molecular sieve at elevated temperatures and short olefin contact times under high severity conditions favorable for substantial conversion of olefins with maximized liquids productivity. ZSM-5 type zeolites and crystalline borosilicate molecular sieves are particularly preferred catalysts.Type: GrantFiled: May 6, 1985Date of Patent: August 12, 1986Assignee: Atlantic Richfield CompanyInventor: Harry Mazurek
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Patent number: 4595787Abstract: Catalyst supports, catalysts, method for the preparation thereof, and dimerization processes therewith are provided. Catalyst supports consist essentially of potassium carbonate with a crush strength of at least 5 pounds and at least one carbonaceous compound. Catalysts consist essentially of at least one elemental alkali metal deposited on the novel catalyst supports. Optionally, the catalysts further consist essentially of at least one promoter selected from the group consisting of elemental copper, elemental cobalt, and finely divided stainless steel.Type: GrantFiled: June 24, 1985Date of Patent: June 17, 1986Assignee: Phillips Petroleum CompanyInventor: Charles A. Drake
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Patent number: 4579987Abstract: A process is provided for converting feedstock comprising paraffins, olefins or mixtures thereof to product comprising C.sub.5 + hydrocarbons over a catalyst comprising a high silica crystalline zeolite which has been treated by steps of calcining the crystalline material, contacting the calcined material with solid aluminum fluoride, and converting the aluminum fluoride contacted material to hydrogen form.Type: GrantFiled: May 13, 1985Date of Patent: April 1, 1986Assignee: Mobil Oil CorporationInventors: Clarence D. Chang, Joseph N. Miale
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Patent number: 4579989Abstract: A process for converting a gaseous feed material including an olefinic mixture comprising primarily ethylene and propylene to higher molecular weight hydrocarbons such as gasoline range products including aromatics. The process comprises passing the feed material under conversion conditions through a reaction zone containing an unmodified crystalline silica polymorph silicalite catalyst. The feed material also contains catalytic poisons such as water, oxides of carbon or sulfur-containing compounds which are commonly encountered in refinery off-gas streams such as those coming from a fluidized catalytic cracking unit.Type: GrantFiled: May 20, 1983Date of Patent: April 1, 1986Assignee: Cosden Technology, Inc.Inventor: James R. Butler
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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: 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: 4542251Abstract: A process for oligomerizing olefins in the liquid phase using nickel-containing silicaceous crystalline molecular sieve catalyst.Type: GrantFiled: February 27, 1984Date of Patent: September 17, 1985Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4533781Abstract: A process for preparing 4-methyl-1-pentene comprising dimerizing propylene in the presence of a catalyst, characterized in that the catalyst is composed from the treatment of precatalyst by at least one oxygen-containing compound selected from oxygen, alcohols, ethers, acetals, orthocarboxylates and esters. The precatalyst is composed of element or compound selected from sodium, potassium, sodium amide and potassium amide supported on a carrier principally represented by the following formula (1):K.sub.2 O.xAl.sub.2 O.sub.3 (1)wherein x has a value in the range of 0.5.ltoreq.x.ltoreq.11. In one embodiment, the precatalyst is hydogenated prior to the use thereof.The use of above mentioned catalyst so remarkably increases the rate of reaction and the selectivity of 4-methyl-1-pentene and allows the reaction rate and selectivity to be kept high for a long period of time.Type: GrantFiled: October 26, 1984Date of Patent: August 6, 1985Assignee: Nippon Oil Company, Ltd.Inventors: Mitsuo Matsuno, Michio Kudoh, Hiroshuke Imai
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Patent number: 4531014Abstract: C.sub.2 to C.sub.10, preferably C.sub.3 to C.sub.6, aliphatic linear olefins are converted to a product comprising at least one hydrocarbon of higher carbon number selected from dimers, oligomers, alkanes, olefins and aromatics by contacting the olefin at elevated temperature with a catalyst comprising a cation-exchangeable layered clay.Type: GrantFiled: February 7, 1984Date of Patent: July 23, 1985Assignee: The British Petroleum Company p.l.c.Inventors: Reginald Gregory, David J. Westlake
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Patent number: 4520222Abstract: Calcium silicate treated with an acid can be used as a polymerization catalyst or as a deodorizing agent. The acid is sulfuric acid, phosphoric acid or nitric acid.Type: GrantFiled: August 1, 1983Date of Patent: May 28, 1985Assignee: Phillips Petroleum CompanyInventors: Robert E. Reusser, Joseph R. Kenton, Elizabeth A. Todd
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Patent number: 4513158Abstract: Catalytically active amorphous silicas are prepared by dehydrating a silica hydrogel or precipitate prepared from an acidified aqueous silicate solution containing an amine of pK.sub.a above 10 or a cation containing either a nitrogen or phosphorus atom bonded to four carbon atoms. The resultant amorphous silica is catalytically active for, among other chemical reactions, the isomerization of ortho-xylene and the cracking of hydrocarbons.Type: GrantFiled: September 10, 1984Date of Patent: April 23, 1985Assignee: Union Oil Company of CaliforniaInventors: Dean A. Young, Jeffery W. Koepke
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Patent number: 4511746Abstract: A process for the pure oligomerization of C.sub.2 -C.sub.6 alkenes over low hydrogen transfer activity molecular sieves is disclosed.Type: GrantFiled: September 25, 1981Date of Patent: April 16, 1985Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4476343Abstract: Olefins are oligomerized to higher oligomers by contact with a catalyst comprising a metal oxide substrate having tantalum (V) halide/oxide bound to the surface thereof.Type: GrantFiled: September 23, 1983Date of Patent: October 9, 1984Assignee: Shell Oil CompanyInventor: Thomas H. Johnson
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Patent number: 4463212Abstract: Olefinic hydrocarbons containing from 2 to about 6 carbon atoms may be oligomerized to provide selective olefins by treatment with a catalyst comprising a metal halide intercalated in a carbon matrix. The oligomerization may be effected at temperatures ranging from about 50.degree. to about 350.degree. C. and a pressure in the range of from about 500 to about 2000 psig in the presence of a catalyst such as antimony fluoride intercalated in graphite.Type: GrantFiled: December 10, 1982Date of Patent: July 31, 1984Assignee: UOP Inc.Inventor: Tamotsu Imai
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Patent number: 4454367Abstract: 1-Butane and isobutene are effectively separated without isomerization of 1-butene by contacting an isobutene-containing hydrocarbon mixture with a solid acid catalyst having a solid acid quantity of 0.05 to 0.25 mmol/g of solid acid catalyst, represented by the adsorption quantity of pyridine, thus low-polymerizing selectively isobutene and then separating the low polymers of isobutene from 1-butene.Type: GrantFiled: March 15, 1983Date of Patent: June 12, 1984Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Satoshi Sakurada, Takao Hashimoto, Nobuaki Tagaya, Tsugio Maeshima, Kayako Ueda, Masahiro Kokubo
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Patent number: 4430515Abstract: The oligomerization of alpha-olefins to produce lube oil range oligomers is made more efficient with Group VB metal chlorides as catalysts.Type: GrantFiled: September 7, 1982Date of Patent: February 7, 1984Assignee: Phillips Petroleum CompanyInventor: Rex L. Bobsein
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Patent number: 4423269Abstract: A process for oligomerizing gaseous olefins using intermediate pore size molecular sieves is disclosed.Type: GrantFiled: September 25, 1981Date of Patent: December 27, 1983Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4423268Abstract: A process for oligomerizing normally gaseous olefins over essentially alumina free molecular sieves at low pressures is disclosed.Type: GrantFiled: January 8, 1982Date of Patent: December 27, 1983Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4417088Abstract: A new process for oligomerizing liquid olefins using intermediate pore size molecular sieves is disclosed.Type: GrantFiled: September 25, 1981Date of Patent: November 22, 1983Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4417086Abstract: A highly efficient oligomerization process using molecular sieves is disclosed.Type: GrantFiled: April 30, 1982Date of Patent: November 22, 1983Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4417087Abstract: A fluidized oligomerization process is disclosed.Type: GrantFiled: April 30, 1982Date of Patent: November 22, 1983Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4414423Abstract: A multistep process for preparing high-boiling hydrocarbons from normally gaseous hydrocarbons is disclosed.Type: GrantFiled: September 25, 1981Date of Patent: November 8, 1983Assignee: Chevron Research CompanyInventor: Stephen J. Miller
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Patent number: 4388480Abstract: A process for preparing 4-methyl-1-pentene comprising dimerizing propylene in the presence of a catalyst, characterized in that the catalyst is composed of sodium and/or sodium amide supported on a carrier represented by the following formula K.sub.2 O.xAl.sub.2 O.sub.3 wherein x has a value in the range of 0.5.ltoreq..times..ltoreq.11. In one embodiment, the catalyst is hydrogenated prior to the use thereof.Type: GrantFiled: January 7, 1982Date of Patent: June 14, 1983Assignee: Nippon Oil Co., Ltd.Inventors: Hirosuke Imai, Mitsuo Matsuno, Michio Kudoh
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Patent number: 4334113Abstract: A synthetic hydrocarbon fluid is prepared by oligomerizing an olefin reactant in the presence of a catalyst prepared by reacting tungsten hexafluoride and water at a moderate temperature. For example, 1-butene is oligomerized at a temperature of about 40.degree. C. in the presence of a catalyst obtained by reacting tungsten hexafluoride and water in a four to one mol ratio. The liquid oligomer product is then hydrogenated to remove residual unsaturation.Type: GrantFiled: September 29, 1980Date of Patent: June 8, 1982Assignee: Gulf Research & Development CompanyInventors: John P. Pellegrini, Jr., David L. Beach, Thaddeus P. Kobylinski
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Patent number: 4319065Abstract: A synthetic hydrocarbon fluid is prepared by oligomerizing an olefin reactant in the presence of a catalyst prepared by reacting tungsten hexafluoride and a branched-chain aliphatic alcohol at a moderate temperature. For example, 1-butene is oligomerized at a temperature of about 40.degree. C. in the presence of a catalyst obtained by reacting tungsten hexafluoride and isopropanol in a four to one mol ratio. The liquid oligomer product is then hydrogenated to remove residual unsaturation.Type: GrantFiled: December 3, 1980Date of Patent: March 9, 1982Assignee: Gulf Research & Development CompanyInventors: Richard G. Austin, David L. Beach, John P. Pellegrini, Jr.
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Patent number: 4311864Abstract: A synthetic hydrocarbon fluid is prepared by oligomerizing an olefin reactant in the presence of a catalyst prepared by reacting tungsten hexafluoride and hydrogen fluoride at a moderate temperature. For example, 1-butene is oligomerized at a temperature of about 40.degree. C. in the presence of a catalyst obtained by reacting tungsten hexafluoride and hydrogen fluoride in a four to one mol ratio. The liquid oligomer product is then hydrogenated to remove residual unsaturation.Type: GrantFiled: July 14, 1980Date of Patent: January 19, 1982Assignee: Gulf Research & Development CompanyInventors: John P. Pellegrini, Jr., David L. Beach, Thaddeus P. Kobylinski
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Patent number: 4311868Abstract: Hydrocarbon is catalytically converted by using a fluorine compound represented by the general formula Z.sup.+ MF.sub.6.sup.-, wherein Z is a hydrogen atom or a hydrogen group, and M is a niobium atom, an antimony atom or a tantalum atom as a catalyst, wherein a catalytically inactive component is settled as a heavy liquid phase or deposited as a solid in a reaction product solution from the conversion of hydrocarbon, the heavy liquid phase or the solid is removed from the reaction product solution, thereby removing substantially the catalytically inactive component therefrom, and the remaining catalytically active component is reused in the conversion of hydrocarbon. An amount of a fresh catalyst solution to be supplemented is considerably reduced by effectively reusing the catalytically active component.Type: GrantFiled: November 20, 1979Date of Patent: January 19, 1982Assignee: Mitsubishi Gas Chemical Company, Inc.Inventors: Tamotsu Ueno, Takehiko Takahashi, Kazuo Takada, Toshio Hidaka, Makoto Takagawa