Producing Or Treating Aluminum(al) Or Aluminum Alloy Patents (Class 75/10.21)
  • Patent number: 8821612
    Abstract: The present invention relates to a stepwise method for the production of titanium-aluminum compounds and some titanium alloys and titanium-aluminum inter-metallic compounds and alloys. In a first step an amount of aluminum is mixed with an amount of aluminum chloride (AlCl3) and then an amount of titanium chloride (TiCl4) is added to the mixture. The mixture is heated to a temperature of less than 220° C. to form a product of TiCl3, aluminum and AlCl3. In a second step, more aluminum can be added if required, and the mixture heated again to a temperature above 900° C. to form titanium-aluminum compounds. This method results in the production of powdered forms of titanium-aluminum compounds with controllable composition. Suitable reactor apparatus is also described.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: September 2, 2014
    Assignee: Commonwealth Scientific and Industrial Research Organisation
    Inventors: Jawad Haidar, Sabaratnasingam Gnanarajan, John Burton Dunlop
  • Patent number: 8562712
    Abstract: The present invention relates to a method and apparatus for the production of titanium alloys and titanium-aluminum inter-metallic compounds and alloys. Starting from a precursor material including titanium subchloride (titanium trichloride or titanium dichloride), the precursor material is reduced by aluminum to produce titanium-aluminum intermetallic complexes or alloys and aluminum chloride which is driven away from the reaction zone so as to favor the forward reaction and the production of the titanium-aluminum compounds. Starting from a precursor material of titanium subchloride avoids the problems associated with starting from titanium metal (which is expensive to produce) or titanium tetrachloride (a reaction very difficult to control), and results in the production of powdered forms of titanium-aluminum compounds with controllable composition.
    Type: Grant
    Filed: July 5, 2004
    Date of Patent: October 22, 2013
    Assignee: Commonwealth Sci. and Ind. Res. Org.
    Inventor: Jawad Haidar
  • Patent number: 8388921
    Abstract: A mass of solid aluminum carbide containing product is produced by a process in which a mixture is formed of an aluminum containing material and a carbonaceous material consisting of, containing or yielding carbon. Then the resulting mixture is heated to a temperature sufficient to react carbon of the carbonaceous material with the aluminum of the aluminum containing material to produce solid aluminum carbide. The solid aluminum carbide then is able to be heated with an aluminum compound selected from Al2O3, Al4CO4, AlO, Al2O and mixtures thereof, to produce aluminum metal and carbon monoxide.
    Type: Grant
    Filed: May 8, 2009
    Date of Patent: March 5, 2013
    Assignee: Thermical IP Pty Ltd.
    Inventor: Yaghoub Sayad-Yaghoubi
  • Patent number: 8357223
    Abstract: This invention relates to a waste treatment furnace and method comprising: Generating a molten metal bed, which moves in a forward direction, such as to define a closed circuit in a cyclical and continuous manner, the surface of said bed comprising at least one essentially-slag-free segment. Loading waste onto the aforementioned essentially-slag-free segment, the waste being dragged by the molten metal bed such that it floats in the mentioned forward direction. Retaining the waste on the surface of the molten metal bed as it moves in the mentioned forward direction. Treating the waste under the effect of the constant and continuous heat exchange generated by the movement of the molten metal bed beneath the waste retained thereon.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: January 22, 2013
    Assignee: Fundacion Tecnalia Research and Innovation
    Inventor: Luis Cobos Jimenez
  • Patent number: 8062616
    Abstract: The present invention relates to a method for treating spent pot liner material (SPL) containing carbon and/or an inorganic material, the method comprising: providing a plasma furnace having first and second electrodes for generating plasma and a crucible having a non-electrically conductive inner surface, heating the SPL material in the crucible in the presence of a flux material and an oxidant by passing an arc between the first and second electrodes via the SPL material to form a molten slag material and convert at least some of the carbon in the SPL material to CO and/or CO2 and/or incorporate at least some of the inorganic material into the molten slag material.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: November 22, 2011
    Assignee: Tetronics Limited
    Inventors: Chris Chapman, Hao Ly, David Deegan
  • Publication number: 20110165332
    Abstract: A mass of solid aluminium carbide containing product is produced by a process in which a mixture is formed of an aluminium containing material and a carbonaceous material consisting of, containing or yielding carbon. Then the resulting mixture is heated to a temperature sufficient to react carbon of the carbonaceous material with the aluminium of the aluminium containing material to produce solid aluminium carbide. The solid aluminium carbide then is able to be heated with an aluminium compound selected from AI2O3, AI4CO4, AIO, AI2O and mixtures thereof, to produce aluminium metal and carbon monoxide.
    Type: Application
    Filed: May 8, 2009
    Publication date: July 7, 2011
    Inventor: Yaghoub Sayad-Yaghoubi
  • Patent number: 7022155
    Abstract: A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first electrode by a distance sufficient to achieve a plasma arc therebetween, (c) means for introducing a plasma gas into the space between the first and second electrodes, (d) means for generating a plasma arc in the space between the first and second electrodes, wherein the first electrode has a channel (7) running therethrough, an outlet of the channel exiting into the space between the first and second electrodes, and wherein means are provided for feeding solid material (20) through the channel to exit therefrom via the outlet into the space between the first and second electrodes.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: April 4, 2006
    Assignee: Tetronics Limited
    Inventors: David Edward Deegan, Chris David Chapman, Timothy Paul Johnson
  • Patent number: 6824585
    Abstract: A method for refining a titanium metal containing ore such as rutile or ilmenite or mixtures to produce titanium ingots or titanium alloys and compounds of titanium involves production of titanium tetrachloride by processing the ore with a chlorinating procedure and removing various impurities by a distillation or similar procedures to form a relatively pure titanium tetrachloride. Thereafter, the titanium tetrachloride is introduced continuously into a reactor at the focal point of a plasma under atmospheric pressures of inert gas along with molten metallic reductant for the initial reduction of gas phase titanium tetrachloride into molten titanium drops which are collected in a set of skulled crucibles. Thereafter, further processing is carried out at atmospheric pressures in under inert gas where the titanium is heated by plasma guns to maximize titanium purity and, in a final optional stage, alloying compounds are added under the same controlled environment and high temperature conditions.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: November 30, 2004
    Assignee: Adrian Joseph
    Inventors: Adrian A. Joseph, John G. Whellock
  • Patent number: 6821500
    Abstract: An apparatus for thermal conversion of one or more reactants to desired end products includes an insulated reactor chamber having a high temperature heater such as a plasma torch at its inlet end and, optionally, a restrictive convergent-divergent nozzle at its outlet end. In a thermal conversion method, reactants are injected upstream from the reactor chamber and thoroughly mixed with the plasma stream before entering the reactor chamber. The reactor chamber has a reaction zone that is maintained at a substantially uniform temperature. The resulting heated gaseous stream is then rapidly cooled by passage through the nozzle, which “freezes” the desired end product(s) in the heated equilibrium reaction stage, or is discharged through an outlet pipe without the convergent-divergent nozzle. The desired end products are then separated from the gaseous stream.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: November 23, 2004
    Assignee: Bechtel BWXT Idaho, LLC
    Inventors: James R. Fincke, Brent A. Detering
  • Patent number: 6600127
    Abstract: A process for synthesizing nanosized powders utilizes a hybrid exploding wire device containing a solid metal wire fuse in the bore of a tube that is open at each end. The ends of the fuse are connected to electrodes on the ends of the tube. The electrodes are designed to erode to maintain a heavy metal plasma. The bore may comprise a corresponding ceramic to be produced, and a microcrystalline powder of a corresponding ceramic may be retained within the bore. An electrical discharge vaporizes and ionizes the fuse. The tube confines the radial expansion of the plasma such that the plasma exits from both ends of the tube where it reacts with a suitable gas to form nanoscale particles. In addition, the plasma gas ablates and vaporizes a portion of the bore wall to contribute to the nanoceramic synthesis. Other alternatives include replacing the fuse with a thin conductive sheath or a consumable metal insert.
    Type: Grant
    Filed: September 13, 2000
    Date of Patent: July 29, 2003
    Assignee: Nanotechnologies, Inc.
    Inventors: Dennis Roger Peterson, Dennis Eugene Wilson, Darrin Lee Willauer
  • Publication number: 20030097903
    Abstract: A plasma arc reactor and process for producing a powder from a solid feed material, for example aluminium, is provided. The reactor comprises: (a) a first electrode (5), (b) a second electrode (10) which is adapted to be spaced apart from the first electrode by a distance sufficient to achieve a plasma arc therebetween, (c) means for introducing a plasma gas into the space between the first and second electrodes, (d) means for generating a plasma arc in the space between the first and second electrodes, wherein the first electrode has a channel (7) running therethrough, an outlet of the channel exiting into the space between the first and second electrodes, and wherein means are provided for feeding solid material (20) through the channel to exit therefrom via the outlet into the space between the first and second electrodes.
    Type: Application
    Filed: November 21, 2002
    Publication date: May 29, 2003
    Inventors: David Edward Deegan, Chris David Chapman, Timothy Paul Johnson
  • Patent number: 6361580
    Abstract: A continuous process for the production of elemental aluminum is described. Aluminum is made from aluminum oxide and a reducing gas such as a light hydrocarbon gas or other reducing gas, for example hydrogen. In the process, a feed stream of the aluminum oxide and the reducing gas is continuously fed into a reaction zone. There the aluminum oxide and reducing gas are reacted at a temperature of about 1500° C. or greater in the reaction zone to provide a continuous product stream of reaction products, which include elemental aluminum. The product stream is continuously quenching after leaving the reaction zone, and the elemental aluminum is separated from the other reaction products.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: March 26, 2002
    Assignee: Massachuetts Institute of Technology
    Inventors: Sven Plahte, Bjorn Lillebuen, Alexander F. Diaz, Jack B. Howard, Anthony J. Modestino, William A. Peters
  • Patent number: RE37853
    Abstract: A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a restrictive convergent-divergent nozzle at its outlet end. Reactants are injected into the reactor chamber. The resulting heated gaseous stream is then rapidly cooled by passage through the nozzle. This “freezes” the desired end product(s) in the heated equilibrium reaction stage.
    Type: Grant
    Filed: May 11, 2000
    Date of Patent: September 24, 2002
    Assignee: Betchel BWXT Idaho, LLC
    Inventors: Brent A. Detering, Alan D. Donaldson, James R. Fincke, Peter C. Kong