Specialized metallurgical processes, compositions for use therein, consolidated metal powder compositions, and loose metal particulate mixtures inventions 08/07

20070199408 - Inner rotor and outer rotor of internal gear pump: An inner rotor having excellent corrosion resistance, which has an outer gear serving as a component of an internal gear pump, and an outer rotor having excellent corrosion resistance, which has an inner gear engaging with the outer gear. The inner rotor and outer rotor of are made of Cu—Ni-based... Agent: Darby & Darby P.C.

20070199409 - Iron-based powder composition: The invention concerns an iron-based powder composition comprising, in addition to the iron-based powder, 0.02% and 1.0%, weight of a machinability improving additive, comprising calcium fluoride and hexagonal boron nitride. The invention also concerns the additive per se.... Agent: Buchanan, Ingersoll & Rooney PC

20070199410 - Method for the production of fine metal powder, alloy powder and composite powder: There is provided a method of producing a metal powder, alloy powder or composite powder having a mean particle diameter D50 of less than or equal to 25 μm, as determined using a particle size measuring apparatus (e.g., a MICROTRAC X 100 particle size measuring apparatus) in accordance with ASTM... Agent: Connolly Bove Lodge & Hutz, LLP

20070193410 - Copper alloy powder for electrically conductive paste: A copper alloy powder for an electrically conductive paste is provided, which is characterized in that the copper alloy powder comprises 80 to 99.9 mass % of Cu and 0.1 to 20 mass % of one or two elements selected from the group consisting of Ta and W and has... Agent: Oliff & Berridge, PLC

20070193409 - Methods for spherically granulating and agglomerating metal particles, and the metal particles prepared thereby, anodes made from the metal particles: A method for spherically granulating and agglomerating metal particles such as tantalum and/or niobium powders is described in the present invention, which includes the steps of: a). comminuting the metal particles to form fine particles having D50 less than 50 μm; b). granulating the comminuted metal particles comprising volatile liquid,... Agent: Christensen, O'connor, Johnson, Kindness, PLLC

20070193411 - Method for producing ti or ti alloy through reduction by ca: The present invention is a method for producing Ti or a Ti alloy through reduction of TiCl4 by Ca, which can produce the high-purity metallic Ti or high-purity Ti alloy. A molten salt containing CaCl2 and having Ca dissolved therein is held in a reactor vessel, and a metallic chloride... Agent: Clark & Brody

20070193412 - Method of making steel: A method of making steel in an electric arc furnace is provided. The method comprises the steps of charging a steelmaking furnace with an iron source, wherein the iron source is melted and refined in the steelmaking furnace during a campaign, providing a source of lime that is screened by... Agent: Hahn Loeser & Parks, LLP

20070193413 - Heap bioleaching process for the extraction of zinc: A method of extracting zinc from a sulphidic ore is provided which comprises bioleaching the ore in a heap with acidophilic microorganisms to produce a pregnant leach solution which is recovered from the bottom of the heap. An integrated process which comprises subjecting the pregnant leach solution to neutralization and... Agent: Russell Reyneke

20070193414 - Use of liquid-crystal displays, and processes for the recycling thereof: The present invention relates to the use of liquid-crystal displays (LCDs), and to processes for the recycling thereof. The processes according to the invention are characterised in that the LCDs are employed at least partly as replacement for other raw materials. In general, the LCDs are thermally treated here at... Agent: Millen, White, Zelano & Branigan, P.C.

20070186721 - Method of gel-casting a cemented carbide body slurry and gelled body: The present invention provides a method of gel-casting WC—Co cemented carbide powder, where the resulting gelled body can be of complex shape and has a high green density, a good homogeneity and sufficiently good mechanical properties for the gelled body to be demolded and dried without significant shape-distortions and cracking.... Agent: Drinker Biddle & Reath (dc)

20070186722 - Methods for preparing metallurgical powder compositions and compacted articles made from the same: Provided are methods of preparing high density compacted components that increase that lubricity of metallurgical powder compositions while reducing the overall organic content of the compacted component. Method of preparing high density compacted components having a high density include the steps of providing a metallurgical powder composition having particles at... Agent: Woodcock Washburn LLP

20070186723 - Method to increase the adherence of coating materials on ferrous materials: METHOD TO INCREASE THE ADHERENCE OF COATING MATERIALS ON FERROUS MATERIALS, comprising the step of: before the reduction of iron ores and/or on the agglomerates thereof, contacting same with a dispersion containing at least a particulate material, thus forming a composite coating of at least a material that cannot be... Agent: Katten Muchin Rosenman LLP

20070186724 - Remedial heap treatment: A system and method are disclosed for improving component extraction from heap leach operations. Following heap leaching for some time, portions of the heap deficient in component extraction are identified, and treatment wells are drilled and remedial treatments are selectively performed on the identified portions of the heap. The remedial... Agent: Marsh, Fischmann & Breyfogle LLP

20070186725 - Precious metal colloid, precious metal fine-particle, composition, and method for producing precious metal fine-particle: To provide a precious metal colloid enabling a production in simply and in low cost, a long-term storage, and a formation of a thin film having a high conductivity, a precious metal fine-particle, a composition including the same, and a method for producing a precious metal fine-particle for forming such... Agent: Westerman Hattori Daniels And Adrian

20070180949 - Method for removing boron from silicon: The present invention provides a method for removal of boron from metal silicon inexpensively and extremely efficiently by a simple method, specifically, heating metal silicon containing boron as an impurity to its melting point to 2200° C. to place it in a molten state, then adding a solid mainly comprised... Agent: Kenyon & Kenyon LLP

20070180950 - High capacitance capacitor anode: The invention is a high capacitance capacitor anode manufactured by creating a green anode body from particles of a dielectric oxide film-forming electrical conducting non-agglomerated powder, sintering the green anode body, and anodizing the sintered body. The non-agglomerated powder comprises fine particles having a small average particle size and a... Agent: Marsteller & Associates

20070180951 - Separation system, method and apparatus: A system, method and apparatus for treating a slurry of liquid metal and solid particles is disclosed using various combinations of vacuum distillation and transfer with hot inert gas. Various mechanisms are disclosed for sealing inerted or vacuum chambers to prevent oxygen infiltration... Agent: Harry M. Levy Emrich & Dithmar

20070180952 - Production of valve metal powders with improved physical and electrical properties: The invention relates to a process that involves (1) feeding (a) a first valve metal powder component containing valve metal particles and (b) reducing component into a reactor having a hot zone; and (2) subjecting the first valve metal powder component and the reducing component to non-static conditions sufficient to... Agent: Bayer Material Science LLC

20070180953 - High purity cobalt, method of manufacturing thereof, and high purity cobalt targets: High purity cobalt with a very few content of impurities such as copper, a method of manufacturing thereof, and high purity cobalt targets are provided. The cobalt containing impurities such as copper is dissolved in a hydrochloric acid solution, and the concentration of the hydrochloric acid of the aqueous solution... Agent: Sonnenschein Nath & Rosenthal LLP

20070180955 - Recovery of steel from contaminated scrap: This invention provides a method for overcoming the adverse effects of disintegration of molten steel streams due to sub-surface growth of carbon monoxide bubbles when exposed to reduced pressures and thus permits refining of liquid scrap much the same way as if it were a quiescent liquid melt. Steel scrap... Agent: Noel A Warner

20070175296 - Method of forming conductors at low temperatures using metallic nanocrystals and product: Metallic nanoparticles are provided which can be used in forming metallic film conductors at reduced temperatures compatible with plastic carriers for the film conductors. This is realized by using a lower molecular weight organic encapsulant of the nanoparticle and thereby reducing the temperature at which the organic encapsulant evaporates. Further,... Agent: Withrow & Terranova, P.l.l.c.

20070175297 - Launder burner: A launder is configured to convey a stream of molten metal from a tap hole in a vertical shaft melting furnace. A burner is arranged to fire in a direction extending upstream through the launder toward and into the furnace through the tap hole. In this arrangement, the burner can... Agent: Stephen D. Scanlon, Esq. Jones Day

20070175298 - Method for refining non-ferrous metal: A method for refining non-ferrous metal wherein a stream of oxygen containing gas is provided from a lance into the headspace of a refining vessel for passage to the molten metal bath within the refining vessel, and a flame envelope is provided around and along the oxygen containing gas stream... Agent: Praxair, Inc. Law Department - M1 557

20070175299 - Process for copper converting: The process for converting a copper sulphide matte to blister copper, is achieved by adding the copper sulphide matte and flux to a suitable agitated slag phase; and injecting, from a discharge tip at the lower end of a top-submerged lance, an oxidizing gas suitable for reacting with the matte... Agent: Norris, Mclaughlin & Marcus