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| Number | Title | Issue Date |
| 7938879 | Power generation from solid aluminum A fuel for splitting water into hydrogen and an oxide component comprises a substantially solid pellet formed from a solid-like mixture of a solid-state source material capable of oxidizing in water to form hydrogen and a passivation surface layer of the oxide compo... | 05/10/2011 |
| 7361209 | Apparatus and process for preparing sorbents for mercury control at the point of use A system for treating a contaminated gas stream is provided that includes a comminution device 204 operable to effect size reduction of a plurality of sorbent particles and form a plurality of comminuted particles, a plurality of nozzles 224 distribute... | 04/22/2008 |
| 7326346 | High capacity regenerable sorbent for removal of arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/05/2008 |
| 7189438 | Magnetic recording medium, method of producing magnetic recording medium and magnetic storage apparatus A magnetic recording medium has a recording layer, disposed above a surface of a substrate and made of hard magnetic nano-particles. The hard magnetic nano-particles are made of an alloy having as a main component an element selected from a group consisting of FePt,... | 03/13/2007 |
| 7183235 | High capacity regenerable sorbent for removing arsenic and other toxic ions from drinking water The present invention is directed to a sorbent comprising a disordered polyvalent metal oxide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered silicate suc... | 02/27/2007 |
| 7108777 | Hydrogen-assisted electrolysis processes A process and electrolytic cell for reducing in an ionic alkali metal compound, the cell containing anode and cathode electrodes, by supplying an electrolyte containing the alkali metal compound to the cell, applying an electric voltage to the cell to reduce said al... | 09/19/2006 |
| 7063793 | Apparatus and method for removing mercury and mercuric compounds from dental effluents The present invention is directed to processes for removing a contaminant from dental effluents and includes transporting a three-phase effluent through a suction line into a particle collection vessel, introducing a suction line cleaning solution which includes a r... | 06/20/2006 |
| 7048781 | Chemically-impregnated silicate agents for mercury control The present invention is directed to a contaminant removal agent comprising a polyvalent metal sulfide on the surface of an inert substrate. The substrate can be a layered silicate, such as vermiculite, an aluminosilicate such as montmorillonite, or a nonlayered sil... | 05/23/2006 |
| 7033419 | Method for high temperature mercury capture from gas streams A process to facilitate mercury extraction from high temperature flue/fuel gas via the use of metal sorbents which capture mercury at ambient and high temperatures. The spent sorbents can be regenerated after exposure to mercury. The metal sorbents can be used as pu... | 04/25/2006 |
| 6942840 | Method for removal and stabilization of mercury in mercury-containing gas streams The present invention is directed to a process and apparatus for removing and stabilizing mercury from mercury-containing gas streams. A gas stream containing vapor phase elemental and/or speciated mercury is contacted with reagent, such as an oxygen-containing oxid... | 09/13/2005 |
| 6911570 | Method for fixating sludges and soils contaminated with mercury and other heavy metals The invention relates to a method, composition and apparatus for stabilizing mercury and other heavy metals present in a particulate material such that the metals will not leach from the particulate material. The method generally involves the application of a metal ... | 06/28/2005 |
| 6312499 | Method for stabilization of liquid mercury A method for stabilization of liquid mercury in which powdered copper particles are cleaned with a chemically reactive fluid suitable for removing surface oxidation from the surface. "Clean" powdered copper particles are mixed with liquid mercury to form ... | 11/06/2001 |
| 5354353 | Amalgamable composition and method of production A multi-component composition suitable for amalgamation with mercury to form a dental amalgam, an amalgam and a method for producing such a multi-component composition. The multi-component composition has: from 30 to 90% (by weight) of a first component c... | 10/11/1994 |
| 5209773 | Dual function mercury trap/particulate filter beds A method and guardbed useful for the removal of residual amounts of mercury and entrained particulate matter from a gas such as a natural gas stream are disclosed. The guardbed contains at least two different particle size porous substrates impregnated wi... | 05/11/1993 |
| 5034054 | Process for treating mercury in preparation for disposal Mercury is mixed with an inorganic powder resulting in a permanent bonding of the mercury to the powder in a solid form. Thereafter the amalgam may be easily, safely, and legally deposited in a landfill. Suggested powders include copper, zinc, nickel, and... | 07/23/1991 |
| 5017218 | Method and apparatus for the production of metal granules Method and apparatus for the production of metal granules from a molten metal are disclosed. A molten metal stream is directed against an impact element located above the surface of water in a water tank. The impact of the molten metal upon the impact ele... | 05/21/1991 |
| 4913407 | Precious metal recovery system A precious metal recovery system utilizing an amalgamation process which results in substantially complete recovery both of the precious metal sought and of the mercury utilized in the process. Mercury has undesirable health and environmental characterist... | 04/03/1990 |
| 4728400 | Method and apparatus for extraction of amalgamatable metals from a slurry Method for extracting metals amalgamatable with mercury from fluid material containing those metals in the form of metal particles. The method comprises contacting a slurry or aqueous solution containing metal particles of the metal to be recovered by ama... | 03/01/1988 |
| 4702765 | Method of making selenium-containing amalgam alloys for dental restoration Selenium-containing amalgam alloys for dental restoration comprises 0.1-50% by weight of any one of the following alloy powders (A), (B) and (C) mixed with 50-99.9% by weight of the following amalgam alloy powders (D). (A): Silver alloy powders containing no l... | 10/27/1987 |
| 4494986 | Gold extracting process and apparatus A process and apparatus for extracting gold fines and other precious metals dissolved or suspended in water and not usually visible to the naked eye by circulating a stream of water determined to contain such gold fines and the like downwardly through a t... | 01/22/1985 |
| 4230486 | Process for removal and recovery of mercury from liquids A method is presented for recovering mercury from mercury-containing liquids in which the liquids are contacted with particles of metallic silver. The method produces highly purified liquids which may be employed in applications having a low mercury toler... | 10/28/1980 |
| 4207138 | Mercury vapor leaching from microelectronic substrates A method for leaching mercury soluble metals from mercury insoluble substrates such as microelectronic devices without damaging the substrate or contaminating the environment with mercury. A mercury vapor jet is formed by passing mercury vapors through an... | 06/10/1980 |
| 4165981 | Method and composition for the decomposition of sodium-mercury amalgam A method and composition are described for the decomposition of sodium-mercury amalgam in a reactor containing solid packing particles to form hydrogen, sodium hydroxide, and denuded mercury. The novel packing particles are comprised of a heterogeneous so... | 08/28/1979 |
| 4164419 | Powdered alloy for dental amalgam A dental alloy capable of combination with mercury to form a dental amalgam comprising by weight 20% and above silver, 20 to 50% tin, 9.5 to 50% copper, and 0.5% and above indium.... | 08/14/1979 |
| 4077856 | Removal of mercury from liquids In a process for the removal of mercury by treatment with elementary nickel an external voltage is applied to maintain the potential of the nickel at a value which differs from the potential of the reversible hydrogen electrode in the liquid concerned by ... | 03/07/1978 |
| 4076553 | Spill control composition and use thereof A spill of liquid elemental mercury is cleaned up by contacting the mercury with zinc coated metal wools which have been activated by immersion in an acid activator solution.... | 02/28/1978 |
| 4019971 | Method of recovering fine gold from ore Ore bearing small particles of precious metal which forms an amalgam with mercury is passed in a water-ore pulp first over a positively charged conductive surface to neutralize particles of organic matter and then over amalgamating plates, flouring of mer... | 04/26/1977 |
| 3998629 | Method for recovering small particles of heavy precious metals by amalgamation There is disclosed a method and apparatus for recovering small particles of gold or platinum from a slurry by feeding the slurry onto a layer of mercury which is flowing downwardly along a generally conical, downwardly converging inner wall of a housing. ... | 12/21/1976 |
| 3997330 | Dental amalgams An improved dental composition comprises an admixture in specified proportions of two powdered alloys of specified composition, one in the form of spheres, the other in the form of irregularly-shaped particles such as flakes. When the admixture is amalgam... | 12/14/1976 |
