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8003043 |
Systems and methods for accessing a furnace melt
A method and apparatus for accessing a furnace melt are provided. Preferably, the method and apparatus provide for the safe and efficient access to the molten metal melt in a furnace. According to...
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7905940 |
Method for reducing metal oxide slags or glasses and/or for degassing mineral melts, and device for carrying out said method
In a method for reducing metal-oxidic slags or glasses and/or degassing mineral melts, solid particles and/or melts are charged onto an at least partially inductively heated bed or column...
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7892599 |
Surface functionalization of nanomaterials for improved processing into devices and products
Methods for functionalizing the surface of nanomaterials to improve processing and product manufacturing. These methods are useful for oxides, nitrides, carbides, borides, metals, alloys,...
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7785389 |
Feed material composition and handling in a channel induction furnace
A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method...
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7776127 |
Use of a channel induction furnace to process at least one of a molten metal product, a vapor phase metal product and a slag product from a variety of feed materials
A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method...
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7776126 |
Processing parameters for operation of a channel induction furnace
A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method...
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7740681 |
Reductant addition in a channel induction furnace
A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. A molten...
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7727302 |
Slag control in a channel induction furnace
A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method...
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7704444 |
Method and apparatus for testing characteristics of a furnace melt
A method and apparatus for testing characteristics of a furnace melt are provided. Preferably, the method and apparatus provide for the safe and efficient testing of metal temperature and...
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7704445 |
Systems and methods for accessing a furnace melt
A method and apparatus for accessing a furnace melt are provided. Preferably, the method and apparatus provide for the safe and efficient access to the molten metal melt in a furnace. According to...
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6805724 |
Method for particulate introduction for metal furnaces
A method and an apparatus for advantageously introducing a flame, a high velocity oxidizing gas, and a high velocity particulate flow into a furnace for metal melting, refining and processing, for...
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6635096 |
Method for optimizing the operating conditions of a submerged arc furnace
A method for producing molten metal by the reduction and melting of raw materials in a submerged arc type electric furnace includes at least one electrode, where substantial amounts of slag are...
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6372010 |
Method for metal melting, refining and processing
An improved method and apparatus for metal melting, refining and processing, particularly adapted to steel making in an electric arc furnace. The method provides auxiliary thermal energy to the...
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6342086 |
Method and apparatus for improved EAF steelmaking
An improved method and apparatus for EAF steelmaking wherein the method provides additional thermal energy to the steel making process, carbon injection for the formation of foamy slag, and oxygen...
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6165247 |
Methods for producing platinum powders
Platinum powders and methods for producing platinum powders. The powders preferably have a small particle size, narrow size distribution and a spherical morphology. The method includes forming the...
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5980607 |
Steelmaking method with oxygen from rectification of air
A method of supplying both an oxygen steelmaking process and an ironmaking process with oxygen. The oxygen is separated from air by rectification of the air. A first stream of oxygen from the...
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5925165 |
Process and apparatus for the 3-stage treatment of solid residues from refuse incineration plants
In a method for processing solid residues from refuse incineration plants the slag is melted and heavy metals from the melt (16) are separated for reutilization. The slag is directly transferred...
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5902372 |
Process and apparatus for processing a shredder light fraction in a melt
A process and apparatus for processing a shredder light fraction including multi-duct nozzle having at least an end section positionable within a metallurgical vessel containing a molten metal...
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5700308 |
Method for enhancing reaction rates in metals refining extraction, and recycling operations involving melts containing ionic species such as slags, mattes, fluxes
A method and apparatus for enhancing reaction rates between ionic species such as slags, mattes, fluxes and the like with at least another component such as similar melts, metals, chemical...
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5500870 |
Process and device for the extraction of valuable substances
A process and melting furnace unit are provided for extracting valuable substances by reducing oxygen-bound metals which process includes exposing a charge in a first reaction zone of a furnace...
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5286441 |
Silver-metal oxide composite material and process for producing the same
A silver-metal oxide composite material comprising a silver matrix, (a) from 1 to 20% by weight, in terms of elemental metal, of an oxide of at least one element selected from the group consisting...
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5177763 |
Furnace bottom structure of direct current electric furnace
A furnace bottom structure of a direct current electric furnace has at least one furnace bottom electrode and at least one gas injection tuyere provided in the furnace bottom refractory of the...
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4762694 |
Molten salt extraction process for the recovery of valued transition metals from land-based and deep-sea minerals
A process for extracting transition metals and particularly cobalt and manganese together with iron, copper and nickel from low grade ores (including ocean-floor nodules) by converting the metal...
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4514223 |
Continuous direct process of lead smelting
There is disclosed a continuous direct process of lead smelting comprising a step of blowing a compounded feedstock by means of an oxygen-enriched air or oxygen into a smelting zone containing a...
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4514217 |
Method of producing lead from sulphidic lead raw-material
The invention relates to a method for producing lead from sulphidic lead raw-materials by direct smelting processes of the kind in which the lead raw-materials are smelted autogenously in a shaft...
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4504308 |
Method of operating a metallurgical plant
There is disclosed a method of operating a metallurgical plant including a metallurgical vessel through the ceiling of which one or several hollow electrode(s) are guided in whose cavity a supply...
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4465512 |
Procedure for producing lead bullion from sulphide concentrate
A procedure based on suspension smelting has been developed for producing lead bullion from sulphidic concentrates in which the proportion of iron and of slag-forming substances is low. In the...
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4455165 |
Increasing blast temperature
In a method of utilizing a plasma generator to increase the blast temperature in a shaft furnace for melting and possible reduction of metals and/or metal oxides, the thermal energy produced in the...
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4247087 |
Furnace installation for the pyrometallurgical treatment of fine-grained ore concentrates
A furnace assembly for the pyrometallurgical treatment of fine-grained ore concentrates including a housing in which there is located a reactor for reacting an ore concentrate and an oxygen-rich...
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4211556 |
Reverberatory smelting of non-ferrous metal sulfide ores
Banks of a green non-ferrous metal sulfide ore are formed along the inner surfaces of sidewalls of a reverberatory furnace of green-charge type and are melted thereby to form slag and matte, a...
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4150975 |
Process for producing metallic chromium
Disclosed is a process for producing metallic chromium from a chromium- and iron-containing ore. First, the chromium- and iron-containing ore is subjected to carbon reduction to obtain a...
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4108639 |
Process for recovering platinum group metals from ores also containing nickel, copper and iron
A process is described for the separation of platinum group metals (PGM) from ores also containing iron, nickel and copper as sulfides. The minerals in the ore are first concentrated by flotation...
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4072502 |
Method apparatus for increasing blast gas temperature in a shaft furnace
A method and apparatus for increasing blast gas temperature in a shaft furnace by passing at least part of the blast gas through a plasma burner, and also supplying additional fuel to the furnace...
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4029495 |
Process for recovering a heavy metal catalyst component from a spent catalyst
A supported catalyst contaminated with organic impurities or a mixture of such a catalyst and a flux is introduced into a rotary furnace, rocking furnace or gradient furnace and agitated and heated...
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3988421 |
Gas cleaning process and equipment
A process and an apparatus for the cleaning of combustible gases, particularly gases emitted in steel making plants, in which the gases are passed through a collecting duct together with additional...
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3964898 |
Process for batch production of sponge iron
Sponge iron is produced by a process including a charging step during which an iron oxide is arranged as a stationary bed in a furnace chamber, a heating step during which a hot, preferably...
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3902889 |
Electric arc melting furnace
An apparatus for and a method of melting scrap metal and refining the melted scrap metal is disclosed. A. the improved apparatus includes an electric arc melting furnace having a shell provided...
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3816100 |
METHOD FOR PRODUCING ALLOY STEEL
An improved method for producing alloy steel, comprising the steps of: charging a furnace with materials comprised of iron, carbon and sulfur, and at least one metal from the group consisting of...
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3555164 |
METHOD OF PROCESSING ORES AND CONCENTRATES CONTAINING RARE METALS AND A UNIT FOR EFFECTING SAID METHOD
An ore-processing device comprising a melting chamber, a cyclone apparatus having an outlet hole and being connected to said chamber, an ejecting device for furnishing a charge to the device and a...
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3501292 |
PURIFICATION OF ELECTROLYTIC COPPER
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3501290 |
METHOD OF TREATING MOLTEN METAL WITH ARC HEAT AND VACUUM
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3563726 |
PRODUCTION OF METAL FROM PULVERENT MATERIAL BY FLASH SMELTING IN A VORTEX
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3556770 |
PROCESS FOR MAKING ALLOYS AND METALS
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3594153 |
COPPER ORE REDUCTION AND METAL REFINING PROCESS
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3826646 |
METHOD FOR TREATING MELTS AND MEANS FOR CARRYING OUT THIS TREATMENT
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3406027 |
Method for regulating the thermal balance of a bath of molten material during a continuous refining process of the material
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3369887 |
Process for the production of manganese-silicon alloys
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3365185 |
Production of metals from pulverulent materials by flash smelting in an electrically heated furnace
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3351462 |
Electric furnace smelting of copper concentrates
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3279912 |
Treating molten metals with multiple electric arc columns
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