Patents Examined by Patrick P. Garvin
  • Patent number: 5302360
    Abstract: A method for working up antimony halide catalysts containing inactivating organic impurities having high boiling points, in which anhydrous antimony trichloride can be isolated in a technically simple manner. The antimony trichloride can be chlorinated to obtain antimony pentachloride which can be re-used as a catalyst in a fluorination process.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: April 12, 1994
    Assignee: Kali-Chemie AG
    Inventors: Guenter Fernschild, deceased, Sarah Fernschild, heir
  • Patent number: 5302773
    Abstract: A process for preparing olefins and diolefins in high productivity which involves contacting an aliphatic hydrocarbon, such as butane, with a heterogeneous catalyst composition containing reactive oxygen under reaction conditions sufficient to produce a more highly unsaturated aliphatic hydrocarbon, such as 1,3-butadiene. The catalyst composition contains a glassy silica matrix of specified surface area and macro-porosity into which are encapsulated domains of a catalyst component containing oxides of magnesium and molybdenum. The catalyst has high crush strength and is useful in transport reactors.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: April 12, 1994
    Assignee: The Dow Chemical Company
    Inventors: G. Edwin Vrieland, Stephen J. Doktycz, Bijan Khazai
  • Patent number: 5302732
    Abstract: Silica-aluminas having a sodium content less than about 0.1 weight percent show increased stability when used as a catalyst for the alkylation of aromatic compounds. Where such silica-aluminas are used as the catalyst in detergent alkylation their increased stability permits continuous alkylation to be performed at lower temperatures, as a result of which the detergent alkylate product shows an incrementally higher linearity. Fluorided silica-aluminas having a sodium content of under 0.05 weight percent are particularly advantageous.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: April 12, 1994
    Assignee: UOP
    Inventors: Karl Z. Steigleder, Christine M. Conway, David M. Baldwin, Diane C. Dierking
  • Patent number: 5302622
    Abstract: The invention relates to a process for the conversion of synthesis gases into a mixture of essentially linear and saturated hydrocarbons, characterized by the use of a catalyst prepared by a gelling procedure, incorporating cobalt, copper and ruthenium, the cobalt, copper and ruthenium being dispersed on a support having at least one oxide of a metal chosen from within the group formed by silica and alumina, the cobalt content, expressed by cobalt weight based on the catalyst weight, being between 1 and 60% by weight, the ruthenium content, expressed by ruthenium weight based on the cobalt weight, being between 0.1 and 20%, and the copper weight, expressed by copper weight based on the cobalt weight, being between 0.1 and 10%.
    Type: Grant
    Filed: May 5, 1993
    Date of Patent: April 12, 1994
    Assignee: Institut Francais Du Petrole
    Inventors: Patrick Chaumette, Catherine Verdon, Daniel Cruypelinck
  • Patent number: 5300597
    Abstract: A method is disclosed for preparing an olefin polymerization catalyst of improved particle size from a solution of magnesium containing component and a transition metal containing component which is reacted with an organoaluminum halide compound. The improved particle size is provided by employing the organoaluminum halide compound in conjunction with a silicon compound, such as for example an alkyl silicate or a polysiloxane.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: April 5, 1994
    Assignee: Phillips Petroleum Company
    Inventor: Nemesio D. Miro
  • Patent number: 5300470
    Abstract: Solid catalyst components for the preparation of catalysts capable of producing polymers and copolymers of ethylene with ultra high molecular weight are obtained in the form of particles having an average diameter of less than 10 micrometers, by way of reaction, in the presence of H.sub.2 O, between:1) a liquid obtained by reacting:A) a titanium compound containing at least one Ti--OR bond, where R is a C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.20 cycloalkyl, or C.sub.6 -C.sub.20 aryl radical; withB) a magnesium compound selected from the group consisting of: halides; compounds comprising at least one --OR or--OCOR group bonded to the magnesium, where R is a C.sub.1 -C.sub.20 alkyl, C.sub.3 -C.sub.20 cycloalkyl, or C.sub.6 -C.sub.20 aryl radical; organometallic compounds; products of the reaction between the above mentioned compounds and electron-donor compounds; and2) a compound or composition capable of halogenating and optionally reducing (A).
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: April 5, 1994
    Assignee: Himont Incorporated
    Inventors: Illaro Cuffiani, Umberto Zucchini
  • Patent number: 5300246
    Abstract: A salty water absorbing composition, salty water ice packs, and salty water absorbing packs used to preserve freshness of meat, fresh fish and shells, vegetables and other watery food when they are transported over a long distance. The salty water absorbing composition and packs containing the composition absorb drippings or exudation discharged from such food, in particular the salty drippings, which ooze from the fresh fish and shells and other marine products. The salty water absorbing pack containing antibiotic materials is accommodated in a bag made of paper sheet coated with a perforated polymer to construct a salty water absorbing pack. The salty water ice pack is obtained by absorbing the pack with salty water and freezing.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: April 5, 1994
    Inventors: Masayuki Yamamoto, Etsuro Sakagami, Iko Ito
  • Patent number: 5300715
    Abstract: An improved process for the production of linear olefinic hydrocarbons by paraffin dehydrogenation and adsorptive separation is disclosed. Aromatic by-products normally formed in paraffin dehydrogenation are selectively removed using at least one aromatics removal zone. Removal of these aromatic by-products significantly increases the purity of the olefinic hydrocarbon product and increases the capacity of the adsorptive separation zone. The improved process is believed to increase the life of the adsorbent in the adsorptive separation zone and the life of the catalyst in the dehydrogenation zone.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: April 5, 1994
    Assignee: UOP
    Inventor: Bipin V. Vora
  • Patent number: 5300716
    Abstract: A process for the preparation of a polyunsaturated olefinic compound, i.e. undeca-1,3,5-triene, in its (3E,5Z) isomeric form, consisting of four consecutive steps starting from deca-1,4-diyne, is disclosed.Said process has the advantage of making it possible to obtain the desired isomer in its essentially pure form.
    Type: Grant
    Filed: September 6, 1991
    Date of Patent: April 5, 1994
    Assignee: Firmenich SA
    Inventor: Christian Chapuis
  • Patent number: 5298471
    Abstract: This invention relates to a two component catalyst system for polymerization of metathesis polymerizable cycloolefins, comprising(a) a tungsten compound of the formula WOX.sub.4-x (OAr).sub.x wherein x represents chlorine, bromine or fluorine, Ar represents a hindered phenyl ring having 1-5 substituents and x=1, 2, or 3; and(b) an activator compound.Among the preferred molecules or groups that are substituted on the phenyl ring of the tungsten compound are chlorine, bromine, phenyl, methoxy and isopropyl groups. Ar can also represent a multisubstituted phenyl group such as 2,4-dichloro-6-methylphenyl.
    Type: Grant
    Filed: November 20, 1992
    Date of Patent: March 29, 1994
    Assignee: Hercules Incorporated
    Inventor: Andrew Bell
  • Patent number: 5296432
    Abstract: Solid component of catalyst for the (co)polymerization of ethylene, including magnesium, halogen and titanium, obtained by:(i) dissolution, in an inert organic solvent, of a magnesium dialkyl, or a magnesium alkyl halide, a tin halide (IV) and possibly also an alkyl halide and their contact until a granular solid precipitates from the solution;(ii) contact of said granular solid and its interaction with a titanium halide, alkoxide or halo-alkoxide, to form a solid component of catalyst.
    Type: Grant
    Filed: July 9, 1992
    Date of Patent: March 22, 1994
    Assignee: ECP Enichem Polimeri S.r.l.
    Inventors: Federico Milani, Luciano Luciani, Maddalena Pondrelli
  • Patent number: 5296434
    Abstract: Catalyst systems for the polymerization of C.sub.2 -C.sub.10 -alk-1-enes contain, as active components,a) a metallocene complex of the general formula I ##STR1## where M is titanium, zirconium, hafnium, vanadium, niobium or tantalum, X is halogen or C.sub.1 --C.sub.8 -alkyl, Y is carbon, phosphorus, sulfur, silicon or germanium, Z is C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.10 -cycloalkyl or C.sub.6 -C.sub.10 -aryl, R.sup.1 and R.sup.2 are identical or different and are each C.sub.1 -C.sub.4 -alkyl, R.sup.3 to R.sup.6 are identical or different and are each hydrogen or C.sub.1 -C.sub.8 -alkyl, or two adjacent radicals R.sup.3 and R.sup.4 and R.sup.5 and R.sup.6 in each case together form a hydrocarbon ring system of 4 to 15 carbon atoms and n is 0, 1 or 2, andb) an open-chain or cyclic alumoxane compound of the general formula II or III ##STR2## where R.sup.7 is C.sub.1 -C.sub.4 -alkyl and n is from 5 to 30.
    Type: Grant
    Filed: June 18, 1992
    Date of Patent: March 22, 1994
    Assignee: BASF Aktiengesellschaft
    Inventors: Eberhard Karl, Werner Roell, Hans Brintzinger, Bernhard Rieger, Udo Stehling
  • Patent number: 5296430
    Abstract: A so-called Ziegler catalyst composed of a titanium halide-containing solid ingredient and an organoaluminum compound for the polymerization of olefins can be imparted with greatly improved storage stability by first subjecting the catalytic composition to a pre polymerization treatment and then to a contacting treatment with carbon dioxide and/or carbon monoxide. The catalytic activity is almost unchanged even after storage of the stabilized catalyst for 90 days or longer in nitrogen gas. The stabilized catalyst can also be used advantageously in a continuous-process polymerization of propylene by continuously introducing the monomer carrying the catalyst owing to absence of blocking of the pipe line with the polymer formed in-line.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: March 22, 1994
    Assignee: Idemitsu Petrochemical Company, Ltd.
    Inventors: Hideo Funabashi, Yoichi Matsuo, Shigeo Iwasaki
  • Patent number: 5294581
    Abstract: A process and a catalyst for the production of mildly elastomeric primarily isotactic polyolefins characterized by intermediate average block lengths wherein olefins are polymerized in the presence of the catalyst which comprises the reaction product of a magnesium alkoxide and a tetravalent titanium halide which takes place in the presence of an electron donor, an organoaluminum compound, and a selectivity control agent which is an effectively unhindered heterocyclic aromatic nitrogen compound.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: March 15, 1994
    Assignee: Shell Oil Company
    Inventor: Robert C. Job
  • Patent number: 5294578
    Abstract: A novel method to prepare a solid acid catalyst through the reaction of a metal-alkyl halide species and the surface hydroxyl group of a solid support is disclosed. Lewis acidic metals, e.g., B, Al and Ga, etc., can then be anchored on the surface via the formation of an oxygen-metal bond. The solids containing these metals can be used as catalysts that will catalyze organic compound coversion reactions, e.g., Friedel-Crafts type reactions, olefin oligomerization, aromatic alkylation and acylation, alkane alkylation and isomerization reactions.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: March 15, 1994
    Assignee: Mobil Oil Corp.
    Inventors: Suzzy C. Ho, margaret M. Wu
  • Patent number: 5292984
    Abstract: An improved process is disclosed for the isomerization of 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 methyl t-amyl ether, which enjoy high current interest as components for reformulated gasoline. Pentenes in raffinate from etherification may be returned to the isomerization process.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: March 8, 1994
    Assignee: UOP
    Inventors: Gregory J. Gajda, Paul T. Barger
  • Patent number: 5292699
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon comprises contacting the carbon monoxide and hydrocarbon under polymerization conditions in the presence of a reaction diluent and a novel catalyst composition formed from a compound of palladium, the anion of a strong non-hydrohalogenic acid and a bis(diethylphosphino)alkane.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: March 8, 1994
    Assignee: Shell Oil Company
    Inventor: Eit Drent
  • Patent number: 5292700
    Abstract: An improved process for the production of linear alternating polymers of carbon monoxide and at least one ethylenically unsaturated hydrocarbon, preferably propylene, includes an aromatic amine in the catalyst composition formed from a palladium salt, the anion of a strong non-hydrohalogenic acid and a bidentate ligand of phosphorus. The presence of the aromatic amine reduces the proportion of 3-alkyl-2,5-furandiyl moieties present in the polymer chain.
    Type: Grant
    Filed: January 25, 1993
    Date of Patent: March 8, 1994
    Assignee: Shell Oil Company
    Inventors: Peter A. A. Klusener, Johannes J. M. Snel, Hans A. Stil
  • Patent number: 5292696
    Abstract: A hydrocarbon adsorbing body for use in the purification of exhaust gas comprises a monolith type carrier, a coating layer of Pd ion-exchanged H-type ZSM-5 zeolite powder, and a coating layer of zeolite powder other than the above zeolite.
    Type: Grant
    Filed: September 15, 1992
    Date of Patent: March 8, 1994
    Assignee: Nissan Motor Company, Limited
    Inventors: Tetsuo Ito, Hiroyuki Kanesaka
  • Patent number: 5292989
    Abstract: A catalyst useful for hydroisomerizing wax containing feeds comprises a Group VIII metal on an alumina or silica-alumina support having less than about 35 wt % silica and is surface treated with at least about 0.5 wt % silica or a silica precursor.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: March 8, 1994
    Assignee: Exxon Research & Engineering Co.
    Inventor: Stephen M. Davis