Patents Examined by Patrick P. Garvin
  • Patent number: 5438027
    Abstract: Inorganic oxides, modified with a metal alkyl and an unsaturated hydrocarbon, can be used to support a metal source, such as, for example, chromium, and a pyrrole-containing compound. The resultant catalyst system can be used to trimerize olefins. Olefin trimerization processes are also provided.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: August 1, 1995
    Assignee: Phillips Petroleum Company
    Inventors: William K. Reagen, Max P. McDaniel
  • Patent number: 5427994
    Abstract: A method is provided for preparing particulate calcium hydroxide/calcium lignosulfonate sorbent by contacting calcium oxide with water.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: June 27, 1995
    Assignee: The United States of America as represented by the Environmental Protection Agency
    Inventors: David A. Kirchgessner, Jeffrey M. Lorrain
  • Patent number: 5401896
    Abstract: Relatively long chain alkyl aromatic compounds are prepared by alkylating an alkylatable aromatic compound with a relatively long chain alkylating agent under alkylation reaction conditions in the presence of catalyst comprising zeolite MCM-49.
    Type: Grant
    Filed: November 23, 1992
    Date of Patent: March 28, 1995
    Assignee: Mobil Oil Corp.
    Inventors: Guenter H. Kuehl, Daria N. Lissy, Hye Kyung C. Timken
  • Patent number: 5371157
    Abstract: A high activity olefin polymerization catalyst, useful in the polymerization of lower .alpha.-olefins, comprises the solid product resulting from contacting a complex magnesium-containing, titanium-containing alkoxide compound with alkylaluminum halide, optionally employed in conjunction with a selectivity control agent.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: December 6, 1994
    Inventor: Robert C. Job
  • Patent number: 5348987
    Abstract: NOx removal catalyst can be obtained by kneading various kinds of inorganic fibers and water containing a surfactant to make a pulp-like substance, adding a catalytic component thereto and then further kneading the resultant mixture to prepare a catalyst paste. The thus obtained catalyst paste is shaped into a honeycomb-like, plate-like or column-like form according conventional various molding methods, and then dried and calcined for use. Instead of the above catalytic components; catalytic carriers such as titanium, zeolite, zirconia and the like may be shaped and calcined in the same manner and used for carrying a catalytic component. A particularly high performance and strength can be obtained with good result when a composition produced by calcining a molybdenum (Mo), vanadium (V) or tungsten (W) compound born on titanium oxide at 400.degree. to 700.degree. C. is used.
    Type: Grant
    Filed: January 12, 1993
    Date of Patent: September 20, 1994
    Assignee: Babcock-Hitachi Kabushiki Kaisha
    Inventors: Yasuyoshi Kato, Kunihiko Konishi
  • Patent number: 5345027
    Abstract: A continuous alkylation process for the production of high octane gasoline comprising contacting a mixture of an isoparaffin and an olefin with a catalyst complex comprising BF3:H.sub.3 PO.sub.4 in a continuous hydrocarbon downflow reactor.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: September 6, 1994
    Assignee: Mobile Oil Corp.
    Inventors: Jonathan E. Child, Kenneth J. Del Rossi, Albin Huss, Jr., Frederick J. Krambeck, Thomas R. Melli, Sergei Yurchak
  • Patent number: 5336653
    Abstract: The present invention provides a catalyst for asymmetric synthesis prepared from a dialkali metal salt of an optically active 2,2'-dihydroxy-1,1'-binaphthyl represented by the formula (I.sub.R) ##STR1## or the formula (I.sub.S) ##STR2## (wherein M is Li, K or Na), a lanthanum compound represented by LaX.sub.3 (X is F, Cl, Br, I, NO.sub.3 or CH.sub.3 CO.sub.2) and an alkali metal alkoxide or an alkali metal hydroxide represented by MOR or MOH (M is Li, K or Na, and R is isopropyl or t-butyl), respectively, in the presence of a water-containing solvent. The catalyst of the present invention is extremely valuable as a catalyst for asymmetric synthesis of an asymmetric nitroaldol reaction useful in the synthesis of a .beta.-hydroxynitro compound which is an important synthetic raw material for an optically active compound such as a medicine.
    Type: Grant
    Filed: November 3, 1992
    Date of Patent: August 9, 1994
    Assignee: Chisso Corporation
    Inventors: Masakatsu Shibasaki, Hiroaki Sasai
  • Patent number: 5336831
    Abstract: An improved process is disclosed for the isomerization of butenes and/or pentenes using a catalyst comprising a non-zeolitic molecular sieve. It is of particular interest to increase the proportion of olefins containing tertiary carbons in the product with low formation of undesirable by-products. Product olefins may be further processed to obtain ethers, which enjoy high current interest as components for reformulated gasoline.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: August 2, 1994
    Assignee: UOP
    Inventors: Gregory J. Gajda, Paul T. Barger, Hayim Abrevaya
  • Patent number: 5332706
    Abstract: A support containing methylalumoxane and derivatives thereof is described which is formed by an incipient impregnation technique. The most preferred support is silica. Incipient impregnation in accordance with the invention provides a supported alumoxane, methylalumoxane, which substantially eliminates the problem of fluid bed reactor fouling when methylalumoxane is introduced into the reactor during its operation.In accordance with the invention, the process comprises providing methylalumoxane activated metallocene compound in particulate form as catalysts in fluid bed gas phase.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: July 26, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Thomas E. Nowlin, Frederick Y. Lo, Ronald S. Shinomoto, Pradeep P. Shirodkar
  • Patent number: 5330947
    Abstract: This invention relates to a catalyst system using a boron alkyl in combination with an aluminum alkyl as a co-catalyst, a process for making the catalyst system and a process using the catalyst system for polymerization of olefins, especially .alpha.-olefins, such as propylene. While both boron alkyls and aluminum alkyls are known as co-catalysts separately, use of a boron alkyl with an aluminum alkyl as co-catalysts in olefin polymerization resulted in an unexpected increase in polymer yield. An increase in yield is accomplished without any increase in the amount of aluminum residue in the polymer product. The preferred boron alkyl is triethyl boron. The preferred aluminum alkyl is TEAl.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: July 19, 1994
    Assignee: Fina Technology, Inc.
    Inventors: Edwar S. Shamshoum, David J. Rauscher, Shabbir A. Malbari
  • Patent number: 5330948
    Abstract: The synthesis, and use as precatalysts of chiral organozirconium complexes for olefin polymerization are disclosed, having the structure (C.sub.5 R'.sub.4-x R*.sub.x) A (C.sub.5 R".sub.4-y R'".sub.y) M Q.sub.p, where x and y represent the number of unsubstituted locations on the cyclopentadienyl ring; R', R", R'", and R* represent substituted and unsubstituted alkyl groups having 1-30 carbon atoms and R* is a chiral ligand; A is a fragment containing a Group 13, 14, 15, or 16 element of the Periodic Table; M is a Group 3, 4, or 5 metal of the Periodic Table; and Q is a hydrocarbyl radical, or halogen radical, with 3.ltoreq.p.ltoreq.o. Related complexes may be prepared by alkylation of the corresponding dichorides. In the presence of methylalumoxane or triarylborane cocatalysts, these complexes form "cation-like" species which are highly active for olefin polymerization. In combination with a Lewis acid cocatalyst, propylene or other .alpha.
    Type: Grant
    Filed: March 31, 1992
    Date of Patent: July 19, 1994
    Assignee: Northwestern University
    Inventors: Tobin J. Marks, Moris S. Eisen, Michael A. Giardello
  • Patent number: 5328883
    Abstract: A contact material composition containing an intimately mixed, mixed oxide of at least one cationic species of a naturally occurring Group IIIB element, at least one cationic species of a Group IIA metal of magnesium, calcium, strontium, and barium and a cationic species of aluminum, as well as methods for hydrocarbon conversion using such contact material compositions are provided.
    Type: Grant
    Filed: February 4, 1993
    Date of Patent: July 12, 1994
    Assignee: Amoco Corporation
    Inventors: Don M. Washecheck, Mark K. Barr, George A. Huff, Jr., Mark P. Kaminsky, Mark S. Kleefisch, Victor K. Shum
  • Patent number: 5326922
    Abstract: The transfer of hydrogen from a paraffin to an olefin is carried out in the presence of, as catalyst, MCM-36. Especially when the paraffin reactant is an isoparaffin, the olefin produced from the reacted isoparaffin may react with unreacted isoparaffin to also produce an alkylate product.
    Type: Grant
    Filed: August 13, 1992
    Date of Patent: July 5, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Albin Huss, Jr., Quang N. Le, Robert T. Thomson
  • Patent number: 5326920
    Abstract: A process for the production of polyisobutylene (PIB) from isobutene-containing feed comprises contacting said feed with a catalyst composition comprising halides of a metal component anchored on an adsorbent inorganic oxide solid by an oxygen-metal bond to provide a reaction mixture containing said polyisobutylene; and thereafter separating and recovering said polyisobutylene.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: July 5, 1994
    Assignee: Mobil Oil Corporation
    Inventors: Suzzy C. Ho, Margaret M. Wu
  • Patent number: 5326925
    Abstract: An isomerization process maximizes the production of 2,3-dimethylbutane by using an arrangement of two reaction zones that operate at low conversion conditions to maximize the production of a methyl pentane containing intermediate and limit the interconversion of 2,3-dimethylbutane to 2,2-dimethylbutane. The process converts a feed comprising normal hexane in a first reaction zone. The effluent from the first reaction zone has a high concentration of methyl pentanes which is separated from normal hexane and passed to a second separation section that receives the effluent from a second reaction zone. Methyl pentanes from the first and second reaction zone effluents enter the second reaction zone for conversion to dimethylbutane in a high 2,3-dimethylbutane to 2,2-dimethylbutane ratio. In this manner the process produces a principally dimethylbutane product having a relatively high octane rating as a result of the high 2,3-dimethylbutane concentration.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: July 5, 1994
    Assignee: UOP
    Inventor: J. W. Adriaan Sachtler
  • Patent number: 5326923
    Abstract: This invention is a process for the regeneration of solid acidic hydrocarbon conversion catalysts, but particularly certain transition aluminas and zeolites promoted with Lewis acids (preferably BF.sub.3) which have been used in the alkylation of isoparaffins with olefins. The process involves the removal of some portion of the reaction product residue adhering to the solid catalyst by contact with a solvent to partially recover the catalyst's initial activity.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: July 5, 1994
    Assignee: Catalytica, Inc.
    Inventors: Michael D. Cooper, Pradip Rao, David L. King, Ronald R. Lopez
  • Patent number: 5326921
    Abstract: Poly-n-butene is prepared from a mixed C.sub.4 hydrocarbon feedstream containing less than about 5 wt. % isobutylene 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 M.sub.n range of 300 to 900.
    Type: Grant
    Filed: September 18, 1992
    Date of Patent: July 5, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventor: Frank J. Chen
  • Patent number: 5324881
    Abstract: The alkylation of isoparaffin with olefin to provide alkylate is carried out in the presence of, as catalyst, a supported heteropoly acid. The support may be MCM-41, and the heteropoly acid may be dodecawolframophosphoric acid (i.e., phosphotungstic acid, i.e., H.sub.3 PW.sub.12 O.sub.40).
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: June 28, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Charles T. Kresge, David O. Marler, Gayatri S. Rav, Brenda H. Rose
  • Patent number: 5324878
    Abstract: Disclosed is a process for carrying out the selective dimerization of isobutene in order to produce alpha- and beta-di-isobutene dimer.sub.3, according to which process an isobutene stream is brought into contact, under dimerization conditions, with a solid silica gel/alumina catalyst which is amorphous when analyzed by X-ray diffraction, displays a molar ratio of SiO.sub.2 /Al.sub.2 O.sub.3 comprised within the range of from 30:1 to 500:1, has a surface-area comprised within the range of from 500 to 1000 m.sup.2 /g, a porosity of from 0.3 to 0.6 ml/g and an average pore diameter of approximately 10 .ANG. (.ANG.ngstrom), and is free from pores with a larger diameter than 30 .ANG..
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: June 28, 1994
    Assignees: Eniricerche S.p.A., Euron S.p.A.
    Inventors: Maurizio Brunelli, Walter Castelvetro, Carlo Perego, Stefano Peratello
  • Patent number: 5324700
    Abstract: Carbonic acid esters are important compounds as a gasoline extender, an octane number improver, an organic solvent and a reacting agent in place of phosgene for production of isocyanates, polycarbonates and various intermediates of agricultural chemicals and pharmaceuticals.According to the present invention, carbonic acid esters can be prepared by reacting an alcohol with carbon monoxide and oxygen in the presence of a catalyst comprising a copper halide and a tertiary organophosphorus compound having phenyl group or alkyl group.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: June 28, 1994
    Assignee: JGC Corporation
    Inventors: Kenji Mori, Masao Tonosaki, Hidekazu Nakamura, Kenzo Yamamoto, Tsutomu Toida, Miki Tojima