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| Number | Title | Issue Date |
| 7998240 | Process of preventing as elution from copper slag A process of water-granulating copper smelting slag can readily suppress elution of As from the copper smelting slag. A process of water-granulating a copper smelting slag with granulation water in a circulating system, includes granulating the copper smelting slag ... | 08/16/2011 |
| 7314499 | Method and device for manufacturing advanced water containing ultra-fine gold particles Produce high-function water useful for consumption as healthy drinking water or in the production of health supplements, cosmetic products, food preservatives, freshness-keeping agents for food, insect repellents or deodorizers, wherein such water contains micro-dis... | 01/01/2008 |
| 7150776 | Metalothermic reduction of refractory metal oxides High purity refractory metals, valve metals, refractory metal oxides, valve metal oxides, or alloys thereof suitable for a variety of electrical, optical and mill product/fabricated parts usages are produced from their respective oxides by metalothermic reduction of... | 12/19/2006 |
| 6586046 | Fluidized bed apparatus and method for treatment of nonspherical, nonequiaxed particles Apparatus and method for producing metallic flake having an environmental coating for use in oxidative and corrosive atmospheres. Fluidized bed techniques are utilized to perform a controlled oxidation of metallic particles that include aluminum. The flui... | 07/01/2003 |
| 6387494 | Method for producing ultra microparticles and ultra microparticles A method for producing ultra microparticles including steps: dissolving or dispersing at least one of metallic salts into a solvent to form a solution, and irradiating a microwave to the solution to produce the ultra microparticles made of a metal in the metal... | 05/14/2002 |
| 6309620 | Carbonyl iron silicide powder A process for preparing carbonyl iron silicide comprises heat treatment of an iron/silicon mixture comprising a) from 20 to 99.9% by weight of finely divided carbonyl iron and b) from 0.1 to 80% by weight of finely divided silicon powder. Also provided ar... | 10/30/2001 |
| 6284013 | Method for preparing high-purity ruthenium sputtering target and high-purity ruthenium sputtering target There is provided a high-purity ruthenium sputtering target with a low impurity content, in particular producing extremely few particles, which is suitable for applications such as the formation of semiconductor thin films. The high-purity ruthenium sputt... | 09/04/2001 |
| 6036741 | Process for producing high-purity ruthenium A process comprises forming ruthenium tetroxide by blowing ozone-containing gas into crude ruthenium powder while hypochlorous acid is being added to the powder, allowing a hydrochloric acid solution to absorb the ruthenium tetroxide, evaporating the solu... | 03/14/2000 |
| 5928405 | Method of making metallic powders by aerosol thermolysis An economical process and associated hardware for commercial manufacture of controllable submicrometer size metallic powders for electronic and other applications. The method is based on the preparation of a stable high concentration precursor solution, p... | 07/27/1999 |
| 5658395 | Method of preparing powders for hard materials from APT and soluble cobalt salts According to the present invention there is now provided a method for preparing a powder containing W and Co and/or Ni characterized in reacting APT and a soluble salt of Co (Ni) in water at temperatures from room temperature to the boiling point of the s... | 08/19/1997 |
| 5632824 | Method of preparing powders for hard materials from cobalt salts and soluble tungstate salts There is disclosed a method for preparing a powder containing ammonium salts of W+Co(Ni) complex ions, through chemical reactions, in a water solution at temperatures from 70° C. to the boiling point and at pH around neutral, between tungstate salts and ... | 05/27/1997 |
| 5284614 | Method of forming fine dispersion of ceria in tungsten Doped tungsten powder, or sintered tungsten bodies formed therefrom, having a fine dispersion of oxide particles of at least one metal from the group zirconium, hafnium, lanthanum, yttrium, and rare earth's are formed by the method of this invention. A mi... | 02/08/1994 |
| 5173108 | Method for controlling the oxygen content in agglomerated molybdenum powders A method is disclosed for producing an agglomerated molybdenum plasma spray powder with a controlled level of oxygen which comprises forming a relatively uniform mixture of agglomerated powders containing molybdenum dioxide and one or more ammonium-contai... | 12/22/1992 |
| 4859241 | Metal flake and use thereof Silver flake having an organo-silver surfactant thereon. Preferably the surfactant is silver stearate. The flake is made by milling silver powder and the surfactant in a liquid medium in which the surfactant is insoluble. The flake makes possible silver-f... | 08/22/1989 |
| 4824482 | Pyrophoric iron product and process of making Diffusion aluminizing, when applied to titanium is effected with little or no activator to produce more uniform case and less etching. Workpieces are very rapidly pack-diffusion coated by using an excess of energizers in the pack, heating the retort containing... | 04/25/1989 |
| 4740238 | Platelet-containing tantalum powders An ingot-derived unagglomerated (or preagglomerated) tantalum powder composition includes a platelet tantalum powder having an average FSSS of less than two micrometers, preferably in the range of 0.6 to 1.1 micrometers, a Scott density not greater than a... | 04/26/1988 |
| 4663189 | Ceramic multilayer electrical capacitors Ceramic multilayer capacitors are prepared having a reduced metal content in the electrode by the use of finely-divided metal alloy flaked particles.... | 05/05/1987 |
| 4501611 | Powder forging of aluminum and its alloys This invention relates to (a) a powder of aluminium or an alloy thereof having at least 0.04% w/w of gallium concentrated on the grain boundaries of the particles in the powder, (b) a method of producing the powder by fragmenting a substrate of aluminium ... | 02/26/1985 |
| 4486225 | Production of highly reflective metal flake Metal flake of improved reflectivity is produced by a method comprising wet ball milling a metal powder in the presence of a lubricant comprising an organometallic compound.... | 12/04/1984 |
| 4482374 | Production of electrically conductive metal flake Metal flake of improved conductivity is produced by a method comprising wet ball milling a powder of a conductive metal in the presence of a lubricant comprising an organometallic compound.... | 11/13/1984 |
| 4273583 | Flake silver powders with chemisorbed monolayer of dispersant Flake silver powders which have a chemisorbed monolayer of organic dispersing agent such as oleic acid on the surfaces and process for their preparation are provided. Such silver powders can be formulated into thick film pastes at above 85% solids levels ... | 06/16/1981 |
| 4129441 | Recovery of silver from silver containing solutions Silver is precipitated from an aqueous sulphate solution containing dissolved silver and other metals at a temperature between about 60° C. and about 125° C. by hydrogen gas at a partial pressure between about 2 and about 5 kg/cm2.... | 12/12/1978 |
| 3988146 | Process for producing large particle size aluminum pigments by working and welding smaller particles A process for the production of aluminum particles of uniform size and shape is provided comprising milling particulate aluminum in a non-oxidizing atmosphere and under inert conditions promoting welding using particular inert liquids which control the sh... | 10/26/1976 |
