Patents Examined by Edward J. Meros
  • Patent number: 4597956
    Abstract: The instant process relates to a process for treating fluoride-containing catalysts or aluminosilicates which contain insoluble fluoride compounds by the use of soluble aluminum compounds.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: July 1, 1986
    Assignee: Union Carbide Corporation
    Inventors: Richard J. Hinchey, Alexander J. Caglione
  • Patent number: 4594235
    Abstract: A process is provided for the production of vanadyl hydrate including solvent extraction and stripping steps. The vanadyl hydrate is then reacted with carbon to produce vanadium carbide.
    Type: Grant
    Filed: June 19, 1985
    Date of Patent: June 10, 1986
    Assignee: Union Carbide Corporation
    Inventor: Harry E. Gardner
  • Patent number: 4592902
    Abstract: There is provided a method and a reaction mixture for preparing crystalline silicate having the structure of ZSM-5 with an alkyltropinium directing agent, alkyl being of 2 to 5 carbon atoms.
    Type: Grant
    Filed: February 26, 1985
    Date of Patent: June 3, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4590050
    Abstract: There is provided a method for preparing a microporous crystalline aluminum phosphate with a urea templating agent. Also provided are microporous, crystalline aluminum phosphates having characteristic structures.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: May 20, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Joseph N. Miale
  • Patent number: 4587115
    Abstract: A faujasite type zeolite having a high SiO.sub.2 /Al.sub.2 O.sub.3 ratio is prepared by simultaneously and continuously supplying an aqueous solution of an alkali metal silicate and an aqueous solution of an aluminum-containing compound whereby the alkali metal silicate is continuously reacted with the aluminum-containing compound to prepare a homogeneous phase compound of a granular amorphous aluminosilicate containing aluminum in an amount of 10 to 16% by weight, as Al.sub.2 O.sub.3 and based on the anhydride; and then, crystallizing the granular homogeneous phase amorphous aluminosilicate in an aqueous alkali metal hydroxide solution having a concentration of 4 to 10% by weight.
    Type: Grant
    Filed: June 8, 1984
    Date of Patent: May 6, 1986
    Assignee: Toyo Soda Manufacturing Co., Ltd.
    Inventors: Junji Arika, Michiyuki Aimoto, Hiroshi Miyazaki
  • Patent number: 4585641
    Abstract: This invention relates to crystalline gallosilicates having the following composition in terms of the mole ratios of the oxides:0.9.+-.0.25M.sub.2 /.sub.n O:Ga.sub.2 O.sub.3 :xSiO.sub.2 :yH.sub.2 O.zQwherein M is at least one cation having a valence n, x is at least 10, y/x is from 0 to 30, Q is a template used in the synthesis of the gallosilicate and z/x is 0-20, wherein the gallosilicate in the organic free hydrogen-form has an X-ray diffraction pattern substantially as set forth in Table A of this specification. The gallosilicates may be used, whether or not impregnated and/or ion-exchanged, admixed, supported or bound, for catalyzing a reaction selected from alkylation, dealkylation, dehydrocyclodimerization, aromatization, transalkylation, isomerization, dehydrogenation, hydrogenation, cracking, hydrocracking, cyclization, oligomerization, polymerization, conversion of carbon monoxide/hydrogen mixtures to hydrocarbons and dehydration reactions.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: April 29, 1986
    Assignee: The British Petroleum Company P.L.C.
    Inventors: Sami A. I. Barri, Dennis Young
  • Patent number: 4585639
    Abstract: This invention relates to a new and improved form of crystalline silicate ZSM-12, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Rosemarie Szostak
  • Patent number: 4585638
    Abstract: This invention relates to a new form of crystalline silicate identified as zeolite ZSM-5, to a new method for synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Gunter H. Kuhl
  • Patent number: 4585637
    Abstract: This invention relates to a new and improved form of crystalline silicate identified as zeolite ZSM-12, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Mae K. Rubin
  • Patent number: 4585746
    Abstract: This invention relates to a new and improved form of crystalline silicate identified as zeolite ZSM-12, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4585747
    Abstract: This invention relates to a new and improved form of crystalline silicate identified as zeolite ZSM-48, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: April 29, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4584286
    Abstract: This invention relates to a new and improved form of crystalline silicate identified as zeolite ZSM-35, to a new and useful improvement in synthesizing said crystalline silicate and to use of said crystalline silicate prepared in accordance herewith as a catalyst for organic compound, e.g. hydrocarbon compound, conversion.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: April 22, 1986
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4581212
    Abstract: A new zeolite material designated EU-7 has a molar composition expressed by the formula:0.5 to 2.5 R.sub.2 O:Y.sub.2 O.sub.3 : at least 20 XO.sub.2 : 0 to 600 H.sub.2 Owherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminum, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having an X-ray powder diffraction pattern substantially as set out in Table 1. The zeolite material is prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and optionally an organic compound, most preferably butane-1,4-diamine.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: April 8, 1986
    Assignee: Imperial Chemical Industries PLC
    Inventors: Abraham Araya, Barrie M. Lowe
  • Patent number: 4581211
    Abstract: A new zeolite material designated EU-12 has a molar composition expressed by the formula: 0.5 to 2.0 R.sub.2 O: Y.sub.2 O.sub.3 : at least 5 XO.sub.2 : 0 to 1000 H.sub.2 O wherein R is a monovalent cation or 1/n of a cation of valency n, X is silicon and/or germanium, Y is one or more of aluminum, iron, chromium, vanadium, molybdenum, arsenic, antimony, manganese, gallium or boron and H.sub.2 O is water of hydration additional to water notionally present when R is H, and having an X-ray powder diffraction pattern substantially as set out in Table 1. The zeolite material is prepared from a reaction mixture containing XO.sub.2 (preferably silica), Y.sub.2 O.sub.3 (preferably alumina) and an organic compound, most preferably a tetramethylammonium compound.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: April 8, 1986
    Assignee: Imperial Chemical Industries PLC
    Inventors: Abraham Araya, Barrie M. Lowe
  • Patent number: 4578260
    Abstract: Diamond can be easily purified from a powdery mixture of diamond and graphite by heating the mixture together with ammonium nitrate and at least one metal oxide of lead monoxide, trilead tetroxide, magnesium oxide and zinc oxide, to oxidize the graphite powder, and removing the oxidized graphite.
    Type: Grant
    Filed: April 24, 1985
    Date of Patent: March 25, 1986
    Assignee: Nippon Oil and Fats Company Limited
    Inventors: Yutaka Kuroyama, Masatada Araki
  • Patent number: 4578259
    Abstract: Crystalline aluminosilicates, a process for the production thereof and uses therefor are disclosed. The crystalline aluminosilicates are of new crystalline structure, which, as determined after calcination in the air at 550.degree. C., have a composition represented by the general formula (I):pM.sub.2/n O.Al.sub.2 O.sub.3.qSiO.sub.2(the symbols are as defined in the appended claims) and give a principal X-ray diffraction pattern as shown in Table 1. They are used as catalysts for the conversion of synthesis gas or oxygen-containing organic compounds such as alcohol, ether into hydrocarbons.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: March 25, 1986
    Assignee: Research Association for Petroleum Alternatives Development
    Inventors: Nobuyuki Morimoto, Kozo Takatsu, Michio Sugimoto
  • Patent number: 4578371
    Abstract: The invention provides a process for the manufacture of a crystalline, phosphorus-containing zeolite of the ZSM-5 type by mixing water, a silicon dioxide source, an alkali metal hydroxide and an aluminum compound, and reacting this mixture at a temperature of from 95.degree. to 230.degree. C. until the zeolite has crystallized, which comprises carrying out the reaction without addition of an organic compound but in the presence of aluminum phosphate. The zeolite obtained has the following molar ratios:SiO.sub.2 :Al.sub.2 O.sub.3 from 15 to 200,M.sub.2 O:SiO.sub.2 from 10.sup.-6 to 1 andH.sub.2 O:SiO.sub.2 from 0 to 40(M being an alkali metal). It is free from organic compounds and contains phosphate in a molar ratio of P.sub.2 O.sub.5 :SiO.sub.2 of from 10.sup.-5 to 0.1. X-ray diffraction patterns are indicated.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: March 25, 1986
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Hans-Peter Rieck, Hans-Jurgen Kalz
  • Patent number: 4576807
    Abstract: The present invention relates to a process for producing a crystalline synthetic faujasite of the zeolite Y type wherein a relatively small amount of a zeolite Y seed is thoroughly mixed with sodium silicate at ambient temperature to form an activated sodium silicate system and to such activated system, sodium aluminate is added at ambient temperature. The mixture is then heated and reacted with stirring until the desired cyrstalline product is formed. Zeolite Y is filtered out and then dried.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: March 18, 1986
    Assignee: Ethyl Corporation
    Inventor: Cecil P. Loechelt, II
  • Patent number: 4576805
    Abstract: 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 is provided.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: March 18, 1986
    Assignee: Mobil Oil Corporation
    Inventors: Clarence D. Chang, Joseph N. Miale
  • Patent number: 4574077
    Abstract: Provided is a process for producing a pitch-based graphite fiber, which process comprises treating a pitch fiber in an oxidative gas atmosphere to render it infusible, said pitch fiber being obtained by melt-spinning a carbonaceous pitch, then heat-treating the infusibilized fiber at 400.degree.-750.degree. C. in an inert gas atmosphere to obtain a precarbonized fiber substantially containing oxygen, then raising the temperature to 2,000.degree.-3,000.degree. C. at a rate of 500.degree. C. or higher per minute in an inert gas atmosphere and heat-treating the precarbonized fiber at the raised temperature of 2,000.degree.-3,000.degree. C. in said inert gas atmosphere.
    Type: Grant
    Filed: October 10, 1984
    Date of Patent: March 4, 1986
    Assignee: Nippon Oil Company Limited
    Inventors: Seiichi Uemura, Takao Hirose, Yoshio Sohda, Takayoshi Sakamoto, Yoshio Kishimoto