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Specialized Metallurgical Processes, Compositions For Use Therein, Consolidated Metal Powder Compositions, And Loose Metal Particulate Mixtures > Processes > Producing Or Treating Free Metal

Producing Or Treating Free Metal

Producing Or Treating Free Metal patent applications listed include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

08/14/14 - 20140224068 - Method and device for producing pig iron
A method for reducing material containing iron oxide in a solid bed in a reduction shaft and converting the material to pre-reduced material in the reduction shaft by introducing pre-reduction gas into the solid bed at a pressure p1. Pre-reduced material is introduced from the reduction shaft into a melter...

07/17/14 - 20140196571 - Process and device for charging into a smelting unit
A process and a device for charging a primary product for pig iron into a smelting unit are provided. According to the process and device, some of the primary product that has been formed by reducing oxidic iron carriers is stored in the hot state in a reservoir tank before...

05/15/14 - 20140130639 - Carbon dioxide reduction in steelworks
A method reduces carbon dioxide resulting from a steel production process. The carbon dioxide is reacted with an electropositive metal in combustion to produce carbon monoxide. The resultant carbon monoxide is fed back into the steel production process. In this method, the carbon monoxide can be used in a direct...

11/07/13 - 20130291684 - Process and plant for treating ore concentrate particles containing valuable metal
The present invention concerns a process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process comprising a first roasting step (1) made in a first roasting reactor (16) and a second roasting...

10/31/13 - 20130283975 - Method of separating and recovering metal elements
A separation and recovery method that enables titanium and tungsten to be separated and recovered from a used DeNOx catalyst in high yield. Specifically, a method of separating and recovering metal elements that includes a first heating step of heating a DeNOx catalyst containing titanium, tungsten, vanadium and iron in...

10/24/13 - 20130276584 - Production of iron
A two stage ironmaking process is disclosed. A first stage includes solid state reduction of iron ore and producing a partially-reduced iron-containing feed material and an off-gas containing CO2 at a location that is in close proximity to a site for sequestering CO2. A second stage includes transporting the feed...

08/15/13 - 20130205951 - Method and system for the production of direct reduced iron using a synthesis gas with a high carbon monoxide content
Methods and systems for the production of direct reduced iron, including: removing a top gas from a direct reduction furnace; carbon monoxide shifting the top gas using a carbon monoxide shift reactor to form a carbon monoxide shifted top gas having a reduced carbon monoxide content; adding one of a...

07/18/13 - 20130180362 - Partially-reduced iron producing apparatus and partially-reduced iron producing method
A partially-reduced iron producing apparatus includes: a supplying device laying ignition raw- material pellets on an endless-grate; a heating furnace heating the ignition raw-material pellets; another supplying device laying the raw material pellets on the ignition raw-material pellets; and an exhaust gas circulation device supplying an oxygen-containing gas to the...

06/27/13 - 20130160609 - Method for recovering platinum from aviation engine components
The disclosure relates generally to methods for platinum recovery from articles. More specifically, the disclosure relates to methods for recovering platinum from gas engine components....

06/13/13 - 20130145901 - Pyrometallurgical method
A method for the pyrometallurgical processing of sulphide material containing nickel using a fluxing composition that includes calcium. The fluxing composition forms a slag having an Fe/CaO ratio of between about 0.5 and 5.0 by weight and an SiO2/Fe ratio of less than 0.2 by weight....

01/10/13 - 20130008288 - Method for controlling beta-tin orientation in solder joints
A method for controlling the beta-tin crystal orientation in solder joints is provided. The method is suitable for joining metallization pads using a solder containing tin and silver. By adjusting the silver content in the solder within a specific range of equal to or more than 2.5 wt. % and...

12/06/12 - 20120304822 - Gasification or liquefaction of coal using a metal reactant alloy composition
This invention relates to a method and apparatus for gasifying or liquifying coal. In particular, the method comprises reacting a coal with a molten aluminum or aluminum alloy bath. The apparatus includes a reaction vessel for carrying out the reaction, as well as other equipment necessary for capturing and removing...

08/23/12 - 20120210823 - Method of hardening an interface of carbon material using nano silicon carbide coating
Disclosed is a method for hardening an interface of a carbon material by using nano silicon carbide coating. A carbon material-aluminum composite prepared by the disclosed method is light in weight, and has a high dynamic strength, and thus can be applied to currently used cars and aluminum wheels. Furthermore,...

08/09/12 - 20120198966 - System and method for making metallic iron with reduced co2 emissions
A method and system for making metallic iron nodules with reduced CO2 emissions is disclosed. The method includes: assembling a linear hearth furnace having entry and exit portions, at least a conversion zone and a fusion zone, and a moving hearth adapted to move reducible iron bearing material through the...

07/26/12 - 20120186395 - Method for producing briquettes, method for producing reduced metal, and method for separating zinc or lead
Disclosed is a method for producing briquettes, by which briquettes having enhanced strength can be produced even when the amount of a binder used therefor is reduced as much as possible. Specifically disclosed is a method for producing briquettes, which comprises: a step of forming a primary granular material having...

07/12/12 - 20120174710 - Reformer-gas-based reduction process with decarbonization of the fuel gas for the reformer
In a process and apparatus for the reduction of metal oxides to form metalized material by contact with hot reducing gas, which is produced at least partially by catalytic reformation of a mixture of—a gas containing carbon dioxide (CO2) and/or steam (H2O) with—gaseous hydrocarbons, the fuel gas for burners which...

07/12/12 - 20120174711 - Apparatus for manufacturing reduced iron and method for manufacturing the same
Provided is an apparatus for manufacturing reduced iron and a method for manufacturing reduced iron. The method for manufacturing reduced iron includes the steps of: i) drying ores in an ore drier; ii) supplying the dried ores to at least one reduction reactor; iii) reducing the ores in the at...

05/31/12 - 20120132034 - Process for producing refined metal or metalloid
Process for producing a refined metal or metalloid, comprising: an electrolysis step of, in an electrolytic bath set in a container for an electrolysis in which a material comprising a metal element or metalloid element and impurities acts as an anode, and an alloy comprising the same metal element or...

05/24/12 - 20120125157 - Method for producing direct reduced iron with limited co2 emissions
A method and apparatus for producing direct reduced iron (DRI), also known as sponge iron, by means of direct contact of iron oxides with a stream of recycled and regenerated hot reducing gases containing hydrogen and carbon monoxide. The invention provides a way for decreasing the uncontained emission of CO2...

05/03/12 - 20120103136 - Apparatus and method for producing reduced iron from alkali-containing ironmaking dust serving as material
Provided is a movable hearth furnace for thoroughly removing alkali metal elements and producing high-strength reduced iron when producing reduced iron using iron production dust containing alkali metal elements in a movable hearth furnace. The movable hearth furnace comprises: a reduction zone for heating and reducing a carbon composite briquette...

01/05/12 - 20120000316 - Method for producing pressed articles containing coal particles
Coal particles to be processed into compressed articles are impregnated with a substance before being mixed with a binder system containing water and finally being processed into compressed articles....

12/29/11 - 20110314966 - Method and apparatus for direct reduction ironmaking
An apparatus for producing a reducing gas for direct reduction iron-making includes an internal-heating type reformer for reforming a natural gas by adding steam and oxygen to the natural gas and by partially burning the natural gas to generate reducing gas containing hydrogen and carbon monoxide; a remover for removing...

12/08/11 - 20110296952 - Soldering process
A process by which molten solder is purified in-situ, making the soldering process more efficient and yielding better results, particularly for lead-free soldering. Lead-free solder becomes practical for use since the temperature for reliable soldering is reduced. A layer of active additive is maintained on the surface of molten solder...

12/01/11 - 20110290075 - Nozzle for injecting gas containing oxygen into a pig iron device having an injector insertion pipe
An injector insert pipe is arranged in the gas channel of a nozzle for injecting oxygen-containing gas into a pig iron production unit, wherein an interspace which surrounds the pipe is present over the entire pipe length between the wall of the gas channel and the pipe outer wall ....

11/17/11 - 20110277591 - System and method for reducing iron oxide to metallic iron using coke oven gas and oxygen steelmaking furnace gas
A process for the direct reduction of iron ore when the external source of reductants is one or both of coke oven gas (COG) and basic oxygen furnace gas (BOFG). Carbon dioxide (CO2) is removed from a mixture of shaft furnace off gas, obtained from a conventional direct reduction shaft...

10/13/11 - 20110247456 - Ultrasonic degassing of molten metals
Methods for degassing and for removing impurities from molten metals are disclosed. These methods can include operating an ultrasonic device in a molten metal bath, and adding a purging gas into the molten metal bath in close proximity to the ultrasonic device....

10/13/11 - 20110247457 - Process for production of direct reduced iron
The present invention relates to a process for the direct reduction of iron ore performed by means of a plant comprising a gravitational furnace (2) having at least one iron ore reduction zone (8) in the upper part thereof, and at least one carbon deposition zone (9) and one reduced...

09/22/11 - 20110226091 - Variable karat gold alloys
A gold alloy that is usable for jewelry and other applications. The gold alloy is made by combining Y % gold with Z % of a master alloy, wherein Y+Z=100. The master alloy includes 16% silver, 71.771% Copper, 12% zinc and 0.229% X, wherein X being selected from the group...

09/08/11 - 20110214535 - System and method of carbon capture and sequestration, environmental remediation, and metals recovery
Systems and methods of capturing and sequestering carbon dioxide, comprising mixing a substantially non-aqueous solvent and an alkali such that the solvent and alkali form a solvent suspension, mixing water and a flue gas containing carbon dioxide with the solvent suspension such that a reaction occurs, the reaction resulting in...

06/09/11 - 20110132145 - Method for separating dross in soldering process
Proposed is a method for separating dross in a soldering process for a printed circuit board using a tin bath containing liquid tin. The method includes collecting dross produced during the soldering process; grinding the dross to tin ash in the tin bath for allowing a portion of tin contained...

02/03/11 - 20110023659 - Process for preparing a foaming slag former, product and use thereof
The present invention relates to a process for preparing a foaming slag former 40 for electric arc furnaces 1, with at least 20 wt. % of solid slag particles, to the product of this process, and to its use in electric arc furnaces 1. The process of the invention comprises...

02/03/11 - 20110023660 - Method and apparatus for recovery of rare earth element
Disclosed is a method for recovering a rare earth element from a rare earth alloy, which has improved extraction efficiency of the rare earth element from the rare earth alloy, and is applicable to the extraction of various rare earth elements. The method is characterized by comprising a step of...

01/20/11 - 20110011210 - Process for making glycol ether compositions useful for metal recovery
Glycol ether compositions useful for metal recovery by froth flotation and processes for making the compositions are disclosed. In one process, dipropylene glycol methyl ether (DPM) is propoxylated to give a composition comprising 4 to 15 wt. % of DPM and at least 20 wt. % of tripropylene glycol methyl...

01/20/11 - 20110011211 - Metallurgical process and plant herefor
A process for the production and/or treatment of at least one metal in a reactor includes discharging a waste gas stream via a waste gas conduit and after-treating the waste gas stream by supplying a cooling gas and/or a cooling gas mixture. The after-treating includes injecting the cooling gas and/or...

01/20/11 - 20110011212 - Method, apparatus and system for manufacture of a cyanide
A method for producing a cyanide including the steps of supplying a hydrocarbon and nitrogen source to an onsite plasma reactor and removing cyanide synthesised inside the onsite plasma reactor to thereby produce the cyanide is disclosed. Also disclosed is a method which includes a monitor for monitoring the cyanide...

01/06/11 - 20110000338 - Method and apparatus for detecting concavo-convex shape surface defects
A detection method for detecting a concavo-convex shape surface defect existing on a ferromagnetic metal object including sensing a signal attributed to strain of the concavo-convex shape surface defect having a size in a range of 0.5 to 6 μm. The signal is magnetic flux leaking from the ferromagnetic metal...

12/23/10 - 20100319490 - Methods for improving the recovery of metal leaching agents
Processes for metal leaching/solvent extraction are described which comprise: (a) providing a first aqueous leach pulp which comprises a mixture of leached solids and an aqueous leach solution comprising a metal, a leaching agent and water; (b) subjecting the first aqueous leach pulp to a first solid-liquid separation to provide...

12/02/10 - 20100300247 - Method for producing reduced metal and slag containing oxidized nonferrous metal using an upgraded coal
The present invention provides a method for producing a high-quality reduced metal using an upgraded coal as a carbonaceous material to be incorporated. In the method, coal is first aged by heating in an organic solvent to produce upgraded coal for metallurgy having higher thermal plasticity than that of the...

11/18/10 - 20100288076 - Device and method for obtaining non-ferrous metals
Device and method for separating metals and metal oxides thereof, in particular in non-ferrous alloys, such as zinc. To this end, zinc residues (dross) is placed in a rotary drum and heated. After a certain treatment time, pure metal located in the bottom part of the drum is poured out....

11/18/10 - 20100288077 - Method of making an alloy
A method of making an alloy comprises alloying components comprising: ferrosilicon having a ratio of iron to silicon; and at least one of a metallic element or a metallic compound. The alloy may be used in electrode compositions for lithium ion batteries....

08/19/10 - 20100206133 - Method of refining solder materials
The invention includes solder materials having low concentrations of alpha particle emitters, and includes methods of purification of materials to reduce a concentration of alpha particle emitters within the materials. The invention includes methods of reducing alpha particle flux in various lead-containing and lead-free materials through purification of the materials....

08/05/10 - 20100192729 - Process and apparatus for producing sponge iron
A process and an apparatus for producing sponge iron from iron-oxide-containing material in lump form by direct reduction in a reduction shaft using a reducing gas, wherein the entire reducing gas is introduced by means of a number of reducing gas distribution ducts in a star-like arrangement or arranged parallel...

06/17/10 - 20100147111 - Process of treating metal bearing crushed rock to control respirable dust during transport in the process including a metal concentrating circuit
A method of alleviating dust in the early stages of metal ore processing, such as copper ore, through mining the ore through concentration involves spraying and wetting crushed ore rock and ground particles and dust at least several of a series of locations with a dust suppressant containing major amounts...

05/13/10 - 20100116090 - Method for recovering metal
A method for recovering the metals according to the present invention is characterized by recovering at least one metal selected from the group comprising gallium, indium and aluminum from the III-V group compound semiconductors or the semiconducting materials of them containing at least one element selected from the group comprising...

05/06/10 - 20100107817 - Method for recovering valuable metals from wastes
A method for recovering valuable metals, which include at least one M element selected from the group consisting of Mo, Ni and Co, and V, in the form of iron-based alloys from a waste containing the valuable metals, comprising the steps of (a) roasting the waste to form a roasted...

04/22/10 - 20100095807 - Separation reagent of platinum group metal, method for separating and recovering platinum group metal, and amide-containing tertiary amine compound
R1 to R3 other than the amide group and R4 to R6 represent a group selected from an optionally branched chain hydrocarbon group of 1 to 18 carbon atoms, an alicyclic hydrocarbon group of 1 to 10 carbon atoms, and an aromatic hydrocarbon group of 1 to 14 carbon atoms....

03/04/10 - 20100050812 - Process for production of elemental iron
A process to prepare elemental iron by contacting an iron ore feed with a reducing gas at a pressure of between 1 and 10 bar to obtain iron and an off-gas includes preparing the reducing gas by performing the following steps: (a) partially oxidizing a mixture comprising a solid or...

02/11/10 - 20100031776 - System and method of producing metallic iron
A hearth furnace 10 for producing metallic iron material has a furnace housing 11 with a drying/preheat zone 12 capable of providing a drying/preheat atmosphere for reducible material, a conversion zone 13 capable of providing a reducing atmosphere for reducible material, a fusion zone 14 capable of providing an atmosphere...

11/12/09 - 20090277303 - Separation and recovery of precious metals using polymer materials
A method of separation and/or recovery of a precious metal from a solution containing said precious metal in ionic form, optionally in the presence of impurities, including the step of contacting a solution containing said precious metal in ionic form with a conducting polymer. The method is generally applicable to...

10/15/09 - 20090255374 - Methods of using tires and scrap rubber in the manufacture and melting of steel and other metals
A method of using scrap rubber and other scrap materials, such as tires or parts or pieces of tires, to manufacture or melt steel and other metals in a furnace is disclosed. The scrap rubber may be used as a carbon source for the manufacture of steel and other metals,...

10/08/09 - 20090249921 - Process for production of nickel and cobalt using metal hydroxide, metal oxide and/or metal carbonate
A method for producing metal oxide from a metal salt selected from nickel hydroxide, cobalt hydroxide, mixed nickel-cobalt hydroxide, nickel carbonate, cobalt carbonate, mixed nickel-cobalt carbonate and combinations thereof includes providing a mixture of the metal salt, mixing the metal salt with a binder selected from the group consisting of...