Patents Examined by Jackson Leeds
  • Patent number: 4512905
    Abstract: Homogeneous sodium zirconium silico-phosphates having the formulaNa.sub.1+x+4y Zr.sub.2-y (SiO.sub.4).sub.x (PO.sub.4).sub.3-xwhere x is from 1 to 2.8 and y is between 0 and about 0.5, are prepared by heating a zirconium phosphate with an aqueous, alkaline sodium silicate solution and calcining the resulting solid orthorhombic crystalline product. The calcined product is useful as a solid electrolyte for transporting sodium ions in a sodium-sulfur storage battery.
    Type: Grant
    Filed: December 23, 1982
    Date of Patent: April 23, 1985
    Assignee: The Texas A&M University System
    Inventors: Abraham Clearfield, Paul Jerus
  • Patent number: 4511547
    Abstract: A crystalline aluminosilicate zeolite is obtained by stirring under heating an aqueous reaction mixture containing a silica source, an alumina source, an alkali source and an organic carboxylic acid not containing an aromatic ring preferably having 3 to 6 carbon atoms and 1 to 3 carboxyl groups.
    Type: Grant
    Filed: December 22, 1983
    Date of Patent: April 16, 1985
    Assignee: Toray Industries, Incorporated
    Inventors: Kazuyoshi Iwayama, Takao Kamano, Kuniyuki Tada, Takehisa Inoue
  • Patent number: 4503021
    Abstract: Finely-divided titanium diboride or zirconium diboride powders are formed by reacting gaseous boron trichloride with a material selected from the group consisting of titanium powder, zirconium powder, titanium dichloride powder, titanium trichloride powder, and gaseous titanium trichloride.
    Type: Grant
    Filed: April 26, 1983
    Date of Patent: March 5, 1985
    Assignee: The United States of America as represented by the Department of Energy
    Inventors: Jorulf Brynestad, Carlos E. Bamberger
  • Patent number: 4499061
    Abstract: A new compound consisting essentially of strontium, iron, boron and oxygen is termed strontium ferrite borate or corabelleite. A fluxed melt for the growth of single crystals and a method for growing single crystals of the corabelleite are disclosed.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: February 12, 1985
    Assignee: Rockwell International Corporation
    Inventor: Howard L. Glass
  • Patent number: 4496528
    Abstract: The invention relates to the preparation of the zeolite ZK-5 from a starting zeolite selected from the group consisting of the zeolites P (Cl), P' (Cl), Q (Br) and Q' (Br).In accordance with the invention, the barium ions contained in the starting zeolite are extracted therefrom by means of a barium-binding agent selected from the group consisting of precipitating agents which form with the barium ions a compound that precipitates, and of complexing agents which form with the barium ions a barium complex.The zeolite ZK-5 obtained may be used in the separation or cracking of hydrocarbons.
    Type: Grant
    Filed: March 29, 1983
    Date of Patent: January 29, 1985
    Assignee: Compagnie Francaise de Raffinage
    Inventors: Michel Bourgogne, Jean-Louis Guth, Georges Szabo, Raymond Wey
  • Patent number: 4496760
    Abstract: A process for the decomposition of complexes of ortho-benzoyl benzoic acids, hydrogen fluoride, and boron trifluoride, whether or not the ortho-benzoyl benzoic acid is substituted, is disclosed wherein the ortho-benzoyl benzoic acid is obtained separately from the hydrogen fluoride and boron trifluoride. This process is characterized in that the complex is treated with an inert solvent at a temperature of at least 20.degree. C., in a distillation column having at least about 8 theoretical plates whereby the solvent reflux is operated at a rate equal to about 5 to about 40 times the weight of the feed delivery rate of the column.The process of the present invention also makes it possible to recover hydrogen fluoride and boron trifluoride for reuse as catalysts in the synthesis of ortho-benzoyl benzoic acid without causing decomposition of the acid.
    Type: Grant
    Filed: August 17, 1983
    Date of Patent: January 29, 1985
    Assignee: PCUK Produits Chimiques Ugine Kuhlmann
    Inventor: Michel Devic
  • Patent number: 4495166
    Abstract: A novel process for the preparation of ZSM-5 and ZSM-11 utilizing a mixture of both quaternary ammonium ions and amines in the forming solution is disclosed in order to enhance the rate of crystallization.
    Type: Grant
    Filed: July 19, 1982
    Date of Patent: January 22, 1985
    Assignee: Mobil Oil Corporation
    Inventors: Robert B. Calvert, Louis D. Rollmann
  • Patent number: 4493784
    Abstract: A method for dehydrating aluminum chloride hexahydrate which comprises contacting the hexahydrate with a melt consisting essentially of a chlorobasic mixture of aluminum chloride and alkali metal chloride and then treating the resulting mixture with HCl to form an AlCl.sub.3 /alkali metal chloride melt enriched in AlCl.sub.3. NaCl is a preferred alkali metal chloride.
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: January 15, 1985
    Assignee: Atlantic Richfield Company
    Inventors: Gleb Mamantov, Charmaine B. Mamantov
  • Patent number: 4493819
    Abstract: A new compound consisting essentially of strontium, iron, boron and oxygen is termed strontium ferrite borate or corabelleite. A method for preparing polycrystalline ceramic corabelleite is disclosed.
    Type: Grant
    Filed: August 3, 1983
    Date of Patent: January 15, 1985
    Assignee: Rockwell International Corporation
    Inventor: Howard L. Glass
  • Patent number: 4483835
    Abstract: Molecular sieves, particularly zeolites, of intermediate pore size are prepared using imidazole derivatives as templates.
    Type: Grant
    Filed: November 14, 1983
    Date of Patent: November 20, 1984
    Assignee: Chevron Research Company
    Inventor: Stacey I. Zones
  • Patent number: 4483934
    Abstract: Raw bentonite is beneficiated by treating a substantially iron oxide-free bentonite, as an aqueous suspension, with an alkali at a temperature of at least 60.degree. C.; washing the alkali treated bentonite at least once with water; and then subjecting a suspension of the alkali-treated and washed bentonite to shearing, attrition and impact forces in a homogenizer of the type wherein the suspension is forced in the form of a film through a thin, hard-surfaced gap under a pressure of at least 1.7 MPa, and at high velocity. The suspension of bentonite thus obtained can then be dried to a product which has a good white color and is more resistent to bacteriological growth.
    Type: Grant
    Filed: May 10, 1983
    Date of Patent: November 20, 1984
    Assignee: English Clays Lovering Pochin & Co., Ltd.
    Inventors: Howard Goodman, Ian S. Bleakley
  • Patent number: 4481177
    Abstract: An improved process for preparing ZSM-22 zeolite is disclosed and claimed. The process comprises preparing a reaction mixture comprised of sources of an alkali or alkaline earth metal, alumina, silica, organic promoter and water, and having the following composition, in terms of mole ratios of oxides:SiO.sub.2 /Al.sub.2 O.sub.3 =20 to .infin.H.sub.2 O/SiO.sub.2 =10 to 100OH.sup.- /SiO.sub.2 =0 to 1.0M.sup.+ /SiO.sub.2 =0 to 2.0RN/SiO.sub.2 =0.01 to 2.0wherein RN is a functional group of a heterocyclic organic compound containing one or more four (4) to ten (10) member, saturated or unsaturated, non-fused rings, wherein the hetero atoms are the same or different, and they are oxygen, phosphorus or nitrogen, an alkyl and/or alkene derivative of the heterocyclic organic compound, wherein the alkyl and/or alkene groups contain one (1) to ten (10) carbon atoms, or an organic or inorganic salt of the heterocyclic organic compound or its alkyl or alkene derivative, and M is an alkali or alkaline earth metal, e.g.
    Type: Grant
    Filed: December 9, 1982
    Date of Patent: November 6, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Ernest W. Valyocsik
  • Patent number: 4481173
    Abstract: The alkali metal content of zeolite ZSM-11 in its as-synthesized form is reduced by crystallizing the zeolite from a solution containing a source of benzyltrimethyl ammonium ions.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: November 6, 1984
    Assignee: Mobil Oil Corporation
    Inventor: Pochen Chu
  • Patent number: 4481174
    Abstract: The crystalline aluminosilicate PZ 1 is produced by carrying out the crystalline in the presence of an organic template compound of the formula R.sub.3 P--(CH.sub.2).sub.n --PR.sub.3 X.sub.2 where R is a lower alkyl group, n is an integer of 2 to 6 and X is Br.sup.- or I.sup.-. The synthesis mixture has the composition:______________________________________ SiO.sub.2 /Al.sub.2 O.sub.3 = 20-250 Na.sub.2 O/SiO.sub.2 = 0.01-0.5 OH/SiO.sub.2 = 0.01-1.0 T/SiO.sub.2 = 0.01-0.2 H.sub.2 O/SiO.sub.2 = 10-40 ______________________________________whereas T means template compound.The synthesis mixture is stirred at a temperature between 90.degree. and 200.degree. C. at autogenous pressure. The aluminosilicate PZ 1 is changed into the aluminosilicate PZ 2 by treatment with dilute acids or with ammonium chloride and subsequent calcining. This aluminosilicate PZ 2 can be employed as catalyst in the conversion of alcohols into hydrocarbons.
    Type: Grant
    Filed: March 23, 1983
    Date of Patent: November 6, 1984
    Assignee: Degussa Aktiengesellschaft
    Inventors: Michael Baacke, Peter Kleinschmit
  • Patent number: 4481181
    Abstract: Hydrogen is produced from hydrogen sulfide by coupling, in a single reaction zone, the partial oxidation of hydrogen sulfide to water and sulfur with the thermal decomposition of hydrogen sulfide to hydrogen and sulfur. When one mole of hydrogen sulfide is burned with a stoichiometric deficiency of oxygen, enough thermal energy is generated by the exothermic partial oxidation to effect the thermal dissociation of about two moles of hydrogen sulfide. The gas mixture exiting from the reaction zone is substantially instantaneously cooled by quenching with cooler gas of substantially the same composition to prevent significant recombination of hydrogen and sulfur. The thermal energy in the gas following the quench step is used to preheat the H.sub.2 S and to cause some dissociation before entry into the reaction zone.
    Type: Grant
    Filed: September 29, 1983
    Date of Patent: November 6, 1984
    Assignee: GA Technologies Inc.
    Inventor: John H. Norman
  • Patent number: 4476102
    Abstract: Novel molybdenum oxycarbonitride compositions are described together with a general method of synthesis. The compositions can be obtained by the relatively low temperature thermal decomposition of an amine molybdate and can be amorphous, poorly crystalline, or substantially crystalline, and can unexpectedly possess high surface areas in the region of about 130 m.sup.2 /g and higher. The compositions have the general formula: MoO.sub.a C.sub.b N.sub.c, where a, b and c are non-zero decimal values and the sum: a+b+c, is less than or equal to about one, as evidenced by X-ray diffraction and chemical analyses. The compositions are useful as abrasives, as for removing oxide coatings from metals.
    Type: Grant
    Filed: November 24, 1980
    Date of Patent: October 9, 1984
    Assignee: Exxon Research and Engineering Co.
    Inventors: Larry E. McCandlish, Larissa W. Turaew
  • Patent number: 4476104
    Abstract: Manganese dioxide is produced from manganous nitrate hexahydrate-containing material by heating such manganous nitrate-containing material to about 150.degree. C. under an oxygen-containing atmosphere until a substantially complete decomposition to manganese dioxide has occurred, further elevating the temperature to about 250.degree. C., and maintaining this temperature until the manganese dioxide has a surface area no greater than about 15 m.sup.2 /gm and a high degree of amorphousness relative to crystalline beta manganese dioxide.
    Type: Grant
    Filed: March 24, 1983
    Date of Patent: October 9, 1984
    Assignee: Union Carbide Corporation
    Inventor: Geoffrey W. Mellors
  • Patent number: 4474741
    Abstract: A process for the preparation of a crystalline aluminosilicate of the pentasil type by hydrothermal crystallization of SiO.sub.2 and Al(OH).sub.3 in the presence of an alkali metal salt at from 80.degree. to 250.degree. C., wherein the crystallization is carried out in ether or aqueous ether. Particularly suitable solvents include the ethers from the group of the poly-(ethylene glycol) dimethyl ethers and mixtures of these ethers with water. The use of these crystalline aluminosilicates as catalysts for alkylating aromatics, and for preparing olefins and/or aromatics from methanol and/or dimethyl ether is also described.
    Type: Grant
    Filed: October 28, 1981
    Date of Patent: October 2, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Hoelderich, Laszlo Marosi, Wolf D. Mross, Matthias Schwarzmann
  • Patent number: 4474742
    Abstract: Toxicity of asbestos is reduced by treating it with non-mutagenic non-toxic hydroxamic acid iron-chelating agents.
    Type: Grant
    Filed: February 17, 1983
    Date of Patent: October 2, 1984
    Assignees: Boston Biomedical Research Institute, Inc., The General Hospital Corporation
    Inventors: Philip Graceffa, Sigmund A. Weitzman
  • Patent number: 4472199
    Abstract: A mineral polymer of the silicoaluminate family has a composition expressed in terms of oxides as follows:yK.sub.2 O:Al.sub.2 O.sub.3 :xSiO.sub.2 :w H.sub.2 Owhere, in the fully hydrated form, "w" is a value at the most equal to 4, "x" is a value in the range of about 4.0 to about 4.2, and "y" is a value in the range of about 1.3 to about 1.52. These mineral polymers are solid solutions which comprise one phase of a potassium polysilicate having the formula:(y-1)K.sub.2 O:(x-2)SiO.sub.2 :(w-1)H.sub.2 Oand one phase of a potassium polysialate polymer having the following formula: ##STR1## where "n" is the degree of condensation of the polymer.
    Type: Grant
    Filed: April 29, 1982
    Date of Patent: September 18, 1984
    Inventor: Joseph Davidovits