N- Or P-containing Catalyst Patents (Class 585/527)
  • Patent number: 4973785
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of ELO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 framework oxide units are disclosed. The molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (EL.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; "EL" represents at least one element capable of forming a framework oxide unit; and "w", "x", "y" and "z" represent the mole fractions of element(s) "EL", aluminum, phosphorus and silicon, respectively, present as framework oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: April 18, 1988
    Date of Patent: November 27, 1990
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Lawrence D. Vail, Edith M. Flanigen, Robert L. Patton, Stephen T. Wilson
  • Patent number: 4882038
    Abstract: Crystalline molecular sieves having a three-dimensional microporous framework structures of MgO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mg.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of magnesium, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is disclosed.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: November 21, 1989
    Assignee: UOP
    Inventors: Brent M. T. Lok, Lawrence D. Vail, Edith M. Flanigen
  • Patent number: 4869805
    Abstract: Titanium-aluminum-silicon-oxide molecular sieves are disclosed having use as molecular sieves and as catalyst compositions in hydrocarbon conversion and other processes. The molecular sieves have a unit empirical formula on an anhydrous basis ofmR: (Ti.sub.x Al.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic+emplating agent; "m" represents the moles of "R" present per mole of (Ti.sub.x Al.sub.y Si.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of titanium, aluminum and silicon, respectively, present as tetrahedral oxides.
    Type: Grant
    Filed: July 22, 1988
    Date of Patent: September 26, 1989
    Assignee: UOP
    Inventors: Brent M. T. Lok, Bonita K. Marcus, Edith M. Flanigen
  • Patent number: 4864068
    Abstract: The invention involves the oligomerization of olefins using a catalyst comprising a composite structure of multiple phases, at least two of which are inorganic crystalline compositions that are contiguous and have a common crystal framework and structure, and at least one of them contains phosphorus and aluminum atoms as part of its crystalline framework structure.
    Type: Grant
    Filed: November 16, 1988
    Date of Patent: September 5, 1989
    Assignee: UOP
    Inventor: Edwar S. Shamshoum
  • Patent number: 4861457
    Abstract: A novel family of crystalline, microporous gallophosphate compositions is synthesized by hydrothermal crystallization at elevated temperatures from gallophosphate gels containing a molecular structure-forming template. The family comprises distinct species, each with a unique crystal structure. Calcination removed volatile extraneous matter from the intracrystalline void space and yields microporous crystalline adsorbents with pores, the dimensions of which vary, among the individual species, from about 3A to 10A in diameter. The compositions represent a new class of adsorbents of the molecular sieve type, and also exhibit properties somewhat analogous to zeolitic molecular sieves which render them useful as catalysts or catalyst based in chemical reactions such as hydrocarbon conversion.
    Type: Grant
    Filed: October 12, 1988
    Date of Patent: August 29, 1989
    Assignee: UOP
    Inventors: Stephen T. Wilson, Naomi A. Woodard, Edith M. Flanigen
  • Patent number: 4855527
    Abstract: A process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under oligomerization/polymerization conditions with siliceous acidic ZSM-23 zeolite having Bronsted acid activity; wherein the zeolite has acidic pore activity and wherein the zeolite surface is rendered substantially inactive for acidic reactions. The zeolite surface can be neutralized by a bulky pyridine compound having an effective cross-section larger than the zeolite pore. The preferred deactivating agent is 2,4,6-collidine, which may be applied to the zeolite as a pretreatment or added with olefin feed in a continuous process.
    Type: Grant
    Filed: January 13, 1989
    Date of Patent: August 8, 1989
    Assignee: Mobil Oil Corporation
    Inventors: Nancy M. Page, Lewis B. Young
  • Patent number: 4851106
    Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of CrO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Cr.sub.x Al.sub.Y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Cr.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represents the mole fractions of chromium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: March 31, 1988
    Date of Patent: July 25, 1989
    Assignee: UOP
    Inventors: Edith M. Flanigen, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
  • Patent number: 4846956
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of MnO.sub.2, AlO.sub.2, SiO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Mn.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Mn.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of manganese, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: September 28, 1988
    Date of Patent: July 11, 1989
    Assignee: UOP
    Inventors: Brent M. Lok, Bonita K. Marcus, Edith M. Flanigen
  • Patent number: 4824554
    Abstract: Crystalline molecular sieves having three-dimensional microporous framework structures of CoO.sub.2, AlO.sub.2, SiO.sub.2, PO.sub.2 and tetrahedral units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Co.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Co.sub.w Al.sub.x P.sub.y Si.sub.z)O.sub.2 ; and "w", "x", "y" and "z" represent the mole fractions of cobalt, aluminum, phosphorus and silicon, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: January 28, 1988
    Date of Patent: April 25, 1989
    Assignee: UOP
    Inventors: Brent M. Lok, Bonita K. Marcus, Edith M. Flanigen
  • Patent number: 4789535
    Abstract: Molecular sieve compositions having three-dimensional microporous framework structures of LiO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedral oxide units are disclosed. These molecular sieves have an empirical chemical composition on an anhydrous basis expressed by the formula:mR: (Li.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the molar amount of "R" present per mole of (Li.sub.x Al.sub.y P.sub.z)O.sub.2 ; and "x", "y" and "z" represent the mole fractions of lithium, aluminum and phosphorus, respectively, present as tetrahedral oxides. Their use as adsorbents, catalysts, etc. is also disclosed.
    Type: Grant
    Filed: February 28, 1986
    Date of Patent: December 6, 1988
    Assignee: Union Carbide Corporation
    Inventors: Edith M. Flanigen, David A. Lesch, Brent M. T. Lok, Robert L. Patton, Stephen T. Wilson
  • Patent number: 4749675
    Abstract: 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: Grant
    Filed: June 27, 1986
    Date of Patent: June 7, 1988
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Daniele Olivier, Feng X. Cai, Christine Lepetit, Maggy Kermarec
  • Patent number: 4724273
    Abstract: The invention relates to polymers and oligomers characterized in that they have been prepared from .alpha.-olefin monomers or mixtures thereof and the distances between the methyl branching points are controllable by the selection of the .alpha.-olefins and to a process for preparing said novel polymers and oligomers.
    Type: Grant
    Filed: February 7, 1986
    Date of Patent: February 9, 1988
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Gerhard Fink, Volker Mohring
  • Patent number: 4717785
    Abstract: Phosphine impurities are effectively removed from higher olefin products containing such impurities by treatment of the olefin with a macroreticular cation exchange resin in the acid form. The invention is particularly useful in removing phosphine catalyst residues from the C.sub.6 and higher mono-olefin products of ethylene oligomerization reactions.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: January 5, 1988
    Assignee: Shell Oil Company
    Inventor: Timm E. Paxson
  • Patent number: 4711969
    Abstract: 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: Grant
    Filed: August 25, 1986
    Date of Patent: December 8, 1987
    Assignee: Chevron Research Company
    Inventors: David L. Beach, James J. Harrison
  • Patent number: 4709112
    Abstract: An improved process for dimerizing lower .alpha.-olefins using a novel nickel-containing Ziegler catalyst system including(A) an organic acid salt or complex of nickel,(B) a trialkylaluminum,(C) a trivalent phosphorus compound of the formula:PR.sup.1 R.sup.2 R.sup.3 (I)P(NR.sup.1.sub.2).sub.3 (II)P(OR.sup.1).sub.3 (III)wherein R.sup.1, R.sup.2, R.sup.3 are alkyl, cycloalkyl, aryl or aralkyl,(D) a fluorinated isopropanol of the formula: ##STR1## wherein m and n are in 4.ltoreq.m+n.ltoreq.6, and optionally (E) a catalyst co-activator: halogenated compounds of the formulae: ##STR2## wherein X is halogen, R.sup.4, R.sup.5, R.sup.6 are alkyl, and n is 1 to 3, and further optionally,(F) a compound selected from aliphatic alcohol and aliphatic carboxylic acid or ester thereof,which yields the dimers with high selectivity of isomers and uniformity of the catalyst without corrosion of the apparatus.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: November 24, 1987
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Hiroshi Sato, Kiyoshi Ikimi, Hideto Tojima, Mikoto Takahashi
  • Patent number: 4689437
    Abstract: An olefin oligomerization/cooligomerization process with a catalyst comprising the reaction product of (1) a transition metal compound selected from the metals Ni, Co, Cr, Fe, Cu, (2) a catalyst activator capable of donating a hydride, alkyl, alkenyl or aryl group when the transition metal has the oxidation state of O or the transition metal compound does not have a hydride, alkyl, alkenyl or aryl group, and (3a) an organophosphorus sulfonate ligand containing one benzene ring with trivalent phosphorus P(III) group and SO.sub.3 M group at ortho-positions, or one benzene ring with CH.sub.2 --P(III) and CH.sub.2 --SO.sub.3 M groups at ortho-positions, or a bridging or fused aromatic ring system with P(III) or CH.sub.2 --P(III) group and SO.sub.3 M or CH.sub.2 --SO.sub.3 M group at adjacent positions on different rings, or any aromatic ring having the P(III) and SO.sub.3 M groups at adjacent positions, where M is H, Group IA or Group IIA metals, quarternary ammonium or phosphonium (NR.sub.4, PR.sub.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: August 25, 1987
    Assignee: Union Carbide Corporation
    Inventor: Rex E. Murray
  • Patent number: 4686315
    Abstract: A process for oligomerizing ethylene using a bicomponent catalyst comprising a nickel ylide substituted with a sulfonato group and an alkyl aluminum alkoxide.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: August 11, 1987
    Assignee: Chevron Research Company
    Inventors: David L. Beach, Yury V. Kissin
  • Patent number: 4675460
    Abstract: Gasoline capable of further processing into diesel fuel is produced by catalytic conversion of lower olefins, using a zeolite catalyst which has been modified by substituting a significant portion of the cation sites thereof by basic cations. A preferred catalyst comprises a zeolite and a binder, said catalyst containing at least 0.2% by weight of exchangeable basic cations. The gasoline so produced is readily converted by contact with a Friedel Crafts catalyst into a hydrocarbon product having a significant fraction boiling in the distillate range.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: June 23, 1987
    Assignees: The Broken Hill Propietary Company Limited, Commonwealth Scientific & Industrial Research Organization
    Inventors: Duncan Seddon, Sandra Bessell
  • Patent number: 4634793
    Abstract: 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: Grant
    Filed: October 3, 1985
    Date of Patent: January 6, 1987
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 4613719
    Abstract: A process for oligomerizing olefins to C.sub.5 -C.sub.12 hydrocarbons comprises contacting, under suitable reaction conditions, at least one olefin having from 2 to 4 carbon atoms per molecule, free hydrogen and a catalyst composition comprising chemically bound copper, phosphorus and oxygen. Preferably, the olefin is propylene or 1-butene. The preferred catalyst composition comprises a mixture of copper(II) orthophosphate, zirconium orthophosphate and aluminum orthophosphate, preferably formed by coprecipitation.
    Type: Grant
    Filed: October 17, 1985
    Date of Patent: September 23, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Simon G. Kukes, Gerhard P. Nowack, Robert L. Banks
  • Patent number: 4535135
    Abstract: The invention relates to new associations of strong bases, having the following general formula:n' RLi--n MZin which: n and n' are the numbers of mols of each compound, R is an alkyl or aryl radical, M is an alkali metal chosen from amongst lithium, sodium or potassium and Z is a hydride or an inorganic amide, the ratio n/n' being between 0.2 and 50.It is preferred to use bases in which the metal of the alkali metal amide or hydride is potassium or sodium. These associations are formed very rapidly and can be applied to anionic polymerization, in particular of conjugated dienes, in a solvent of low polarity or an apolar solvent.The polymers thus obtained contain a high percentage of 1,2 or 3,4 structures.
    Type: Grant
    Filed: October 24, 1983
    Date of Patent: August 13, 1985
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Serge Lecolier, Serge Raynal
  • Patent number: 4528414
    Abstract: The process for the oligomerization of linear and/or branched chain C.sub.2 to C.sub.12 olefins with non-zeolitic molecular sieves having a framework structure of MO.sub.2, AlO.sub.2 and PO.sub.2 tetrahedra and having an empirical chemical composition on an anhydrous basis expressed by the formulamR: (M.sub.x Al.sub.y P.sub.z)O.sub.2wherein "R" represents at least one organic templating agent present in the intracrystalline pore system; "m" represents the moles of "R" present per mole of (M.sub.x Al.sub.y P.sub.z)O.sub.2. "M" represents silicon, iron, titanium or at least one of magnesium, manganese, cobalt and zinc such being present in the form of a tetrahedral oxide; "x", "y" and "z" represent the mole fractions of "M", aluminum and phosphorous, respectively.
    Type: Grant
    Filed: November 15, 1983
    Date of Patent: July 9, 1985
    Assignee: Union Carbide Corporation
    Inventors: Gary N. Long, Regis J. Pellet, Jule A. Rabo
  • Patent number: 4528416
    Abstract: An improved process for the conversion of ethylene to its linear alpha-olefin oligomers by contact with a catalytic nickel complex dissolved in a polar organic solvent. The improvement relates to the use as solvent in such a process of a mixture of certain monohydric and dihydric alcohols in specified proportions. Practice of the invention provides enhanced rate of ethylene oligomerization and/or modification of the carbon number distribution of the product oligomer mixture.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: July 9, 1985
    Assignee: Shell Oil Company
    Inventor: Eugene F. Lutz
  • Patent number: 4528415
    Abstract: A novel ethylene dimerization catalyst is provided consisting essentially of a nickel compound, a phosphine compound, and an acidic compound. In addition, an improved ethylene dimerization process is provided which comprises contacting ethylene with the novel catalyst composition present, in an effective solvent, at a temperature from about 0.degree. C. to about 200.degree. C. As a result of the inventive precess, high catalyst productivity and good selectivity to the desired dimerized product, 1-butene, is obtained.
    Type: Grant
    Filed: August 20, 1981
    Date of Patent: July 9, 1985
    Assignee: Phillips Petroleum Company
    Inventor: Ronald D. Knudsen
  • Patent number: 4520222
    Abstract: 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: Grant
    Filed: August 1, 1983
    Date of Patent: May 28, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Robert E. Reusser, Joseph R. Kenton, Elizabeth A. Todd
  • Patent number: 4518814
    Abstract: A novel ethylene oligomerization catalyst is provided consisting essentially of a nickel compound, a phosphine compound, and an acid. In addition, an improved ethylene oligomerization process is provided which comprises contacting ethylene with the novel catalyst composition present, in an effective solvent, at a temperature from about 0.degree. C. to about 200.degree. C. As a result of the inventive process, high catalyst productivity and good selectivity to desired oligomeric products are obtained.
    Type: Grant
    Filed: August 24, 1984
    Date of Patent: May 21, 1985
    Assignee: Phillips Petroleum Company
    Inventors: Ronald D. Knudsen, Stephen E. Reiter
  • Patent number: 4513158
    Abstract: 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: Grant
    Filed: September 10, 1984
    Date of Patent: April 23, 1985
    Assignee: Union Oil Company of California
    Inventors: Dean A. Young, Jeffery W. Koepke
  • Patent number: 4503279
    Abstract: Ethylene is oligomerized to linear, alpha-olefins by reacting ethylene in liquid phase solution in the presence of a catalyst composition produced by contacting in the presence of ethylene (1) a simple divalent nickel salt, (2) a boron hydride reducing agent, and (3) an o-dihydrocarbylphosphinophenyl alcohol or lower alkyl ether.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: March 5, 1985
    Assignee: Shell Oil Company
    Inventor: David M. Singleton
  • Patent number: 4503280
    Abstract: Ethylene is oligomerized to a mixture of olefinic products of high linearity in the presence of a catalyst comprising an atom of nickel in complex with an olefinically unsaturated compound and an o-dihydrocarbylphosphinophenyl alcohol or lower alkyl ether ligand.
    Type: Grant
    Filed: June 11, 1984
    Date of Patent: March 5, 1985
    Assignee: Shell Oil Company
    Inventor: David M. Singleton
  • Patent number: 4490571
    Abstract: An oligomerization process is effected by treating olefinic hydrocarbons containing from 2 to about 6 carbon atoms in the presence of a catalyst comprising boron fluoride composited on an alumina support. The catalyst is treated with an additive comprising an oxygen or nitrogen-containing compound either prior to or during the process whereby the product which is obtained from the reaction will contain oligomer isomers possessing minimal branching.
    Type: Grant
    Filed: October 5, 1983
    Date of Patent: December 25, 1984
    Assignee: UOP Inc.
    Inventors: Mark J. O'Hara, Tamotsu Imai
  • Patent number: 4487847
    Abstract: A novel ethylene dimerization catalyst is provided consisting essentially of a nickel compound, a phosphine compound, and an acidic compound. In addition, an improved ethylene dimerization process is provided which comprises contacting ethylene with the novel catalyst composition present, in an effective solvent, at a temperature from about 0.degree. C. to about 200.degree. C. As a result of the inventive process, high catalyst productivity and good selectivity to the desired dimerized product, 1-butene, is obtained.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: December 11, 1984
    Assignee: Phillips Petroleum Company
    Inventor: Ronald D. Knudsen
  • Patent number: 4482640
    Abstract: A novel ethylene oligomerization catalyst is provided consisting essentially of a nickel compound, a phosphine compound, and an acid. In addition, an improved ethylene oligomerization process is provided which comprises contacting ethylene with the novel catalyst composition present, in an effective solvent, at a temperature from about 0.degree. C. to about 200.degree. C. As a result of the inventive process, high catalyst productivity and good selectivity to desired oligomeric products are obtained.
    Type: Grant
    Filed: May 2, 1983
    Date of Patent: November 13, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Ronald D. Knudsen, Stephen E. Reiter
  • Patent number: 4472525
    Abstract: Ethylene is oligomerized to a mixture of olefinic products of high linearity in the presence of a catalyst comprising an atom of nickel in complex with an olefinically unsaturated compound and an o-dihydrocarbylphosphinophenyl alcohol or lower alkyl ether ligand.
    Type: Grant
    Filed: June 6, 1983
    Date of Patent: September 18, 1984
    Assignee: Shell Oil Company
    Inventor: David M. Singleton
  • Patent number: 4436946
    Abstract: 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: Grant
    Filed: November 19, 1982
    Date of Patent: March 13, 1984
    Assignee: Shell Oil Company
    Inventor: Edgar J. Smutny
  • Patent number: 4434313
    Abstract: A process for preparing linear alpha olefins and waxes having a total product M.sub.n in the range 200 to 700 comprising at least 90 mole percent linear alpha olefins which includes polymerizing an ethylene containing gas in the presence of the reaction product of a zirconium halide compound with an aluminum cocatalyst selected from the group consisting of dialkyl aluminum alkoxides or aryloxides and dialkyl aluminum disubstituted amides in the presence of a diluent at a temperature of about 50.degree. to 200.degree. C. and an ethylene pressure above about 3.5 MPa, wherein the M.sub.n of said reaction product is controlled by the molar ratio of said aluminum cocatalyst/Zr halide, said molar ratio being less than about 10.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: February 28, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventor: Arthur W. Langer, Jr.
  • Patent number: 4425226
    Abstract: 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: Grant
    Filed: December 10, 1982
    Date of Patent: January 10, 1984
    Assignee: Phillips Petroleum Company
    Inventors: Robert E. Reusser, Joseph R. Kenton, Elizabeth A. Todd
  • Patent number: 4410750
    Abstract: A process for preparing linear alpha olefins and waxes having a total product M.sub.n in the range 200 to 700 comprising at least 90 mole percent linear alpha olefins which includes polymerizing an ethylene containing gas in the presence of the reaction product of a zirconium halide compound with an aluminum cocatalyst selected from the group consisting of dialkyl aluminum alkoxides or aryloxides and dialkyl aluminum disubstituted amides in the presence of a pi base and in the presence of a diluent at a temperature of about 50.degree. to 200.degree. C. and an ethylene pressure above about 3.5 MPa, wherein the M.sub.n of said reaction product is controlled by the molar ratio of said aluminum cocatalyst/Zr halide, said molar ratio being less than about 1.
    Type: Grant
    Filed: December 29, 1982
    Date of Patent: October 18, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Arthur W. Langer, Jr.
  • Patent number: 4382132
    Abstract: 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: Grant
    Filed: June 1, 1981
    Date of Patent: May 3, 1983
    Assignee: El Paso Polyolefins Company
    Inventors: Joseph M. Kelley, John J. Roderick
  • Patent number: 4382153
    Abstract: 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: Grant
    Filed: April 5, 1982
    Date of Patent: May 3, 1983
    Assignee: Gulf Research & Development Company
    Inventors: David L. Beach, James J. Harrison
  • Patent number: 4377719
    Abstract: A process for preparing 1,7-octadiene by dimerizing butadiene in the presence of a catalytic amount of palladium acetate and a tertiary phosphine, a solvent in an amount sufficient to dissolve the catalyst, a strong base and formic acid, wherein: (a) the molar ratio of the strong base to the formic acid is 1:1-2, (b) the mole ratio of tertiary phosphine to palladium is at least 1, (c) the amount of strong base present is such that the pH of the reaction medium is from 7.5 to 10.5 and (d) the solvent is at least one member selected from the group consisting of aromatic hydrocarbons, lower alkyl substituted aromatic hydrocarbon, halogenated aromatic hydrocarbons, halogenated lower aliphatic hydrocarbons, nitriles, amides, dilower alkyl ethers, lower alkyl phenyl ethers, lower alkyl esters of lower alkanoic acids, ketones and lower alkanols.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: March 22, 1983
    Assignee: Charles U. Pittman, Jr.
    Inventors: Charles U. Pittman, Jr., Ronald Hanes
  • Patent number: 4377720
    Abstract: A process for preparing linear alpha olefins and waxes having a total product M.sub.n in the range 200 to 700 comprising at least 90 mole percent linear alpha olefins which includes polymerizing an ethylene containing gas in the presence of the reaction product of a zirconium halide compound with an aluminum cocatalyst selected from the group consisting of dialkyl aluminum alkoxides or aryloxides and dialkyl aluminum disubstituted amides in the presence of a diluent at a temperature of about 50.degree. to 200.degree. C. and an ethylene pressure above about 3.5 MPa, wherein the M.sub.n of said reaction product is controlled by the molar ratio of said aluminum cocatalyst/Zr halide, said molar ratio being less than about 1.
    Type: Grant
    Filed: December 14, 1981
    Date of Patent: March 22, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventor: Arthur W. Langer
  • Patent number: 4310716
    Abstract: 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: Grant
    Filed: August 18, 1980
    Date of Patent: January 12, 1982
    Assignee: Gulf Research & Development Company
    Inventors: David L. Beach, James J. Harrison
  • Patent number: 4293727
    Abstract: 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: Grant
    Filed: August 18, 1980
    Date of Patent: October 6, 1981
    Assignee: Gulf Research & Development Company
    Inventors: David L. Beach, James J. Harrison
  • Patent number: 4260548
    Abstract: Low molecular weight ethylene homo and copolymer waxes are prepared by using a combination of (1) incremental addition of free radical catalyst (2) at high temperatures up to 150.degree. C. and (3) high pressures up to 3000 psi. Preferably molten aliphatic waxes are used as the solvent.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: April 7, 1981
    Assignee: Princeton Polymer Laboratories
    Inventors: Donald E. Hudgin, Thomas Zawadzki
  • Patent number: 4252987
    Abstract: Dimerization of alpha,beta-unsubstituted 1-alkenes, having at least three carbon atoms, in the presence of a catalyst comprising(a) a titanium-containing component of the formulaCp.sub.2 TiXY,wherein Cp represents an optionally alkyl-substituted cyclopentadienyl group, X represents a halogen atom or an alkyl group, and Y represents a halogen atom,(b) an alkylaluminum halide, and(c) a nitrogen Lewis base,is characterized by high reaction selectivity to certain dimer products and little formation of higher polymers.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: February 24, 1981
    Assignee: Shell Oil Company
    Inventors: Brian L. Goodall, Harry van der Heijden