Patents Represented by Attorney Bruce E Harang
  • Patent number: 4622046
    Abstract: Stabilized high solids content coal-oil mixtures are provided by the admixture of coal and oil in the presence of a saturated or unsaturated fatty acid and a gel-forming agent under selected conditions of admixture.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: November 11, 1986
    Assignee: The Standard Oil Company
    Inventors: Joseph D'Intino, Carl E. Eckman, Lester E. Burgess
  • Patent number: 4605494
    Abstract: An improved method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith, such as ash and sulfur. In this arrangement, a forward product stream is formed in which a mixture of the particulate matter slurry and the chemical reagents is sprayed through a nozzle at a first relatively low pressure onto the surface of water in a forward stream flotation tank to create a floating froth phase containing therein a first quantity of the particulate matter. The remainder of the particulate matter slurry separates from the froth phase by sinking in the water, and the froth phase is separated as a first product.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: August 12, 1986
    Assignee: Sohio Alternate Energy Development Co.
    Inventors: Lester E. Burgess, Phillip E. McGarry, David E. Herman
  • Patent number: 4605420
    Abstract: A process for modifying the surface of oxidized coal, said process comprising subjecting coal having oxidized surfaces to high shear agitation in water followed by desliming the resultant aqueous coal mixture.
    Type: Grant
    Filed: July 2, 1984
    Date of Patent: August 12, 1986
    Assignee: Sohio Alternate Energy Development Company
    Inventors: Phillip E. McGarry, David E. Herman, Robert A. Treskot, David C. Fistner, Sr.
  • Patent number: 4597858
    Abstract: An improved method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith such as ash and sulfur. In this arrangement, a forward product stream is formed in which a first quantity of chemical reagents is mixed with the particulate matter slurry. The treated particulate matter slurry is then sprayed through a nozzle onto the surface of water in a forward stream flotation tank to create a floating froth phase containing therein a first quantity of the particulate matter. The remainder of the particulate matter slurry separates from the froth phase by sinking in the water, and the froth phase is separated as a first product. The remainder of the particulate matter slurry is then directed to a scavenger product stream in which an additional quantity of chemical reagents is mixed with the remainder of the separated particulate matter slurry.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: July 1, 1986
    Assignee: Sohio Alternate Energy Development Co.
    Inventors: Lester E. Burgess, Phillip E. McGarry, David E. Herman
  • Patent number: 4583990
    Abstract: Process for the beneficiation and recovery of low rank coals comprising subjecting pulverized low rank coal to surface treatment by admixing said coal with an aqueous mixture comprised of a polymerizable monomer, a polymerization catalyst and a coal derived oil; and the beneficiated low ash, low sulfur containing product resulting therefrom.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: April 22, 1986
    Assignee: The Standard Oil Company
    Inventors: Phillip E. McGarry, David E. Herman
  • Patent number: 4564369
    Abstract: An improved process for the beneficiation of coal and the separation of impurities therefrom comprising subjecting coal to surface treatment by contact with an aqueous medium comprising polymerizable monomer, polymerization catalyst and liquid organic carrier, thereby rendering said coal hydrophobic and oleophilic, the improvement comprising the high shear intermixing of the surface treated coal with at least one water wash medium thereby providing for the removal of further hydrophilic impurities, such as mineral ash from the coal. Apparatus for carrying out the process and the products prepared therefrom are also provided.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: January 14, 1986
    Assignee: The Standard Oil Company
    Inventors: Lester E. Burgess, Karl M. Fox, Phillip E. McGarry, David E. Herman
  • Patent number: 4551179
    Abstract: Coal-aqueous mixture having high solids content and excellent stability are provided by an improved process involving selective mixing and other conditions.
    Type: Grant
    Filed: October 11, 1983
    Date of Patent: November 5, 1985
    Assignee: The Standard Oil Company
    Inventor: Seymour Mark
  • Patent number: 4534356
    Abstract: Disclosed is a solid state oxygen sensor utilizing a noble metal first electrode and a silver/silver halide reference electrode and an oxygen permeable polymeric membrane electrolyte. Also disclosed is a method of producing said sensor and a method of using said sensor.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: August 13, 1985
    Assignee: Diamond Shamrock Chemicals Company
    Inventor: Nicholas Papadakis
  • Patent number: 4526585
    Abstract: A process for the production of beneficiated coal and coal slurries having low ash, and sulfur involving admixing coal in an aqueous medium with a surface treating admixture comprising a polymerizable monomer, polymerization catalyst and a liquid organic carrier thereby rendering said coal highly hydrophobic and oleophilic. The resultant beneficiated coal product is formed into coal slurries, such as coal-oil mixtures.
    Type: Grant
    Filed: July 22, 1983
    Date of Patent: July 2, 1985
    Assignee: The Standard Oil Company
    Inventors: Lester E. Burgess, Karl M. Fox, Phillip E. McGarry
  • Patent number: 4518486
    Abstract: An improved quality premium (needle) coke is produced from an aromatic concentrate as the feed and a non-coking feed supplement in lieu of recycle. The premium coker feed bypasses a fractionator, is combined with a non-coking feed supplement, heated in a furnace and charged to a coke drum. Vapors from the premium coking process are returned to a fractionator which is concurrently utilized in a regular grade coking operation. The premium coke thus formed is of a higher quality than coke made from conventional fractionator bottoms, and system costs are reduced by utilizing a single fractionator with concurrent production of regular and premium coke. A preferred embodiment shows additional benefits produced by a higher ratio of recycle to fresh feed to the coke drum during the last stage consisting of about 15 to 25 percent of the total fill cycle.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: May 21, 1985
    Assignee: The Standard Oil Company
    Inventor: John C. Jansma
  • Patent number: 4514291
    Abstract: An improved method and apparatus for froth flotation separation of the components of a slurry, having particular utility for the beneficiation of coal by the flotation separation of coal particles from impurities associated therewith, such as ash and sulfur. In this arrangement, an improved open flow, spiral nozzle is positioned above a flotation tank having a bath therein, and sprays an input slurry through an aeration zone into the surface of the water. The spraying operation creates a froth on the water surface in which a substantial quantity of particulate matter floats, while other components of the slurry sink into the water bath. A skimming arrangement skims the froth from the water surface as a cleaned or beneficiated product.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: April 30, 1985
    Assignee: The Standard Oil Company
    Inventors: Phillip E. McGarry, David E. Herman, Robert A. Treskot, David C. Fistner, Sr.
  • Patent number: 4511365
    Abstract: Coal-aqueous mixtures having high solids content, excellent stability and viscosity are provided by admixture of a small amount of fuel oil.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: April 16, 1985
    Assignee: Sohio Alternate Energy Development Company
    Inventor: Seymour Mark
  • Patent number: 4468362
    Abstract: This disclosure is directed to the preparation of a self-sustaining hydrophobic backing layer which also possesses excellent electrical conductivity so that it can serve as an intermediate layer between the current distributor and the active layer of a complete oxygen cathode. Said backing layer is formed by a simple process in which an intimate liquid dispersion containing finely divided carbon black and not more than equal parts by weight of PTFE particles ranging in size from about 0.05 to about 0.5 microns is dewatered and shaped into a thin layer which is thereafter lightly pressed and consolidated at elevated temperatures. Preferably, the carbon black is an acetylene black of a particle size range between 50 and 3000 Angstroms and the weight proportion of same is greater than the PTFE.
    Type: Grant
    Filed: December 20, 1982
    Date of Patent: August 28, 1984
    Assignee: Diamond Shamrock Corporation
    Inventor: Frank Solomon
  • Patent number: 4465561
    Abstract: Metals such as lead, silver, copper, calcium, antimony, cadmium, nickel and zinc are electroplated onto a film-forming metal substrate from the group of aluminium, titanium, zirconium, niobium, molybdenum, tungsten, tantalum and alloys thereof, using an etching/electroplating solution comprising ions of the metal(s) to be plated, optionally alkali metal ions, aluminium halide and an aromatic hydrocarbon. Surface oxide is removed from the film-forming metal substrate by reaction with the aluminium halide and the metal(s) in solution to form soluble complexes, this possibly being assisted by anodization. This is followed by cathodically connecting the substrate and passing current to electroplate the metal(s) onto the oxide-free surface, directly in the same etching/electroplating solution.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: August 14, 1984
    Assignee: Diamond Shamrock Chemicals Company
    Inventors: Thinh Nguyen, Jean-Marie Fresnel, Henri B. Beer
  • Patent number: 4459197
    Abstract: The active layer of an electrode is laminated on its working surface to a current distributor and on its opposite surface to a porous coherent, hydrophobic, wetproofing layer. The active layer contains from about 60 to about 85 wt. % active carbon particles bound in a matrix of a fibrillated mixture of a fluorocarbon polymer and carbon black. The electrode is useful in chlor-alkali cells.
    Type: Grant
    Filed: June 22, 1983
    Date of Patent: July 10, 1984
    Assignee: Diamond Shamrock Corporation
    Inventor: Frank Solomon
  • Patent number: 4459189
    Abstract: An electrode in particular an oxygen-evolving anode for metal electrowinning from an acid electrolyte comprises a body of aluminum or other metal coated with lead or a lead alloy by electroplating preferably from a non-aqueous electrolyte. The substrate can be a sheet of aluminium or compacted particles of aluminium plated with lead or a lead alloy. A sheet of lead or lead alloy is clad to the electroplated substrate and advantageously an electrocatalytic material such as surface-activated valve metal sponge is applied to the surface of the lead or lead alloy.
    Type: Grant
    Filed: February 16, 1983
    Date of Patent: July 10, 1984
    Inventors: Christopher J. Vance, Thinh Nguyen, Jean-Marie Fresnel, Henri B. Beer, Siegfried Ernst
  • Patent number: 4459324
    Abstract: A catalytic electrode has an electrically conductive substrate such as titanium or lead and is provided with a coating comprising a platinum-group metal catalyst finely dispersed in a matrix consisting of a semi-conducting polymer formed in situ on the substrate. The catalyst may be a platinum-group metal oxide such as iridium oxide formed in situ together with the semi-conducting polymer by a controlled heat treatment.The semi-conducting polymer is preferably formed from polyacrylonitrile, polybenzimidazo-pyrrolone or an adamantane based polybenzoxazole.
    Type: Grant
    Filed: April 8, 1982
    Date of Patent: July 10, 1984
    Assignee: Diamond Shamrock Corporation
    Inventors: Jurgen Gauger, Jean-Marcel Hinden, Michael Katz
  • Patent number: 4448803
    Abstract: A semi-conducting, stable polychelate coating is manufactured in situ on a conducting substrate providing metal coordination centers, by carrying out a controlled chelating reaction and thermal treatment on the substrate surface with a predetermined specific amount (X.sub.o) of tetranitrile compound per unit substrate area. The temperature and duration as well as this specific amount (X.sub.o) are selected from given ranges to form a uniform polychelate coatingbonded to the substrate surface.Titanium electrodes are provided with such polychelate coatings for different purposes. Electrodes with other metal substrates are further provided with such polychelate coatings.
    Type: Grant
    Filed: October 19, 1981
    Date of Patent: May 15, 1984
    Assignee: Diamond Shamrock Corporation
    Inventors: Jurgen F. Gauger, Jean M. Hinden, Michael Katz
  • Patent number: 4448886
    Abstract: A process for producing high dispersion metal crystallites dispersed substantially homogeneously in a carbonaceous material matrix is disclosed. The novel metal crystallite dispersions disclosed herein have the added advantage of being locked into the matrix thereby preventing migration of the metal crystallites.
    Type: Grant
    Filed: November 30, 1981
    Date of Patent: May 15, 1984
    Assignee: Diamond Shamrock Corporation
    Inventors: Lawrence J. Gestaut, P. David Simcox
  • Patent number: 4447566
    Abstract: Improved resin reinforced, asbestos diaphragms for use in chlor-alkali cells and their method of manufacture are disclosed.
    Type: Grant
    Filed: January 27, 1983
    Date of Patent: May 8, 1984
    Assignee: Eltech Systems Corp.
    Inventors: Louis W. Hruska, Shan-Pu Tsai