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7524355 |
Nano-composite energetic powders prepared by arrested reactive milling
A method is disclosed for producing an energetic metastable nano-composite material. Under pre-selected milling conditions a mixture of powdered components are reactively milled. These components...
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6960238 |
Method and installation for the indirect reduction of particulate oxide-containing ores
In a process for the gas reduction of particulate oxide-containing ores, in particular iron-oxide-containing material, in the fluidized-bed process at a pressure of <5 bars, wherein the ore by...
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6830606 |
Method for decarbonization refining of chromium-containing molten steel
The present invention: solves the problems of hitherto disclosed technologies, such as insufficient suppression of the oxidation loss of [Cr] and the excessive erosion of refractories, in the...
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6726739 |
Method of treating metal analysis sample and device thereof
The present invention provides a pre-treatment apparatus for an analytical metal sample, the apparatus including (1) a treatment chamber having a sample charging port which can be opened and closed...
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6695936 |
Methods and apparatus for using large inertial body forces to identify, process and manufacture multicomponent bulk metallic glass forming alloys, and components fabricated therefrom
To identify and manufacture metallic glass forming alloys, large inertial forces or “g”-forces are used to sequentially separate crystalline phases (particles) as they sequentially form and...
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6669754 |
Method for optimizing the layout and operation of a reduction method
A description is given of a method of optimizing the design and operation of a reduction process for iron-containing charge materials ( 3 ), preferably in lump form, in a reduction shaft ( 1 ) to...
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6607577 |
Desulphurization reagent control method and system
A method and computer program for determining the amounts of desulphurizing reagents required to reduce the sulphur content in hot metal to meet a specified aim concentration. The determination of...
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6395054 |
Process for producing pozzolanes, synthetic blast furnace slags, belite or alite clinkers, or pig iron alloys from oxidic slags
A process that produces pozzolanes, synthetic blast furnace slags, belite, or alite clinkers, as well as pig iron alloys, from oxidic liquid slag. The oxidic liquid slag is reduced above an iron...
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6171364 |
Method for stable operation of a smelter reactor
A process of producing molten iron involves: a) introducing iron oxide, flux, oxygen, nitrogen, carbon, and hydrogen to a smelter reactor; b) maintaining conditions to cause (i) the iron...
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6165248 |
Evaluating precious metal content in the processing of scrap materials
A method for evaluating a batch of scrap material, subsequent to processing of the batch, to determine the content of precious metal present in the batch prior to processing of the batch, includes...
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6116079 |
Liquid copper hydrogen sample probe
A method is disclosed for improving the making of metals such as steel and copper by using a molten metal gas measurement system to measure the gas content of the molten metal particularly H 2 ...
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5948137 |
Scrap metal measuring and weighing process and apparatus
An on-line system for measuring the composition of scrap metal, including a loader with a load sensor having a motion compensator linked to a bulk material analyzer such as a prompt gamma-ray...
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5850034 |
Making of metal products using a gas analyzer
A method for improving the making of metals such as steel and copper by specially using a gas measurement system to analyze molten metals for gas, particularly H2 content, and to controlling the...
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5741348 |
Method for refining an aluminium scrap smelt
A method of refining a melt of aluminum scrap material which comprises metallic aluminum and impurities including iron, in order to obtain a target iron level. The method includes the steps of...
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5693120 |
Production method for low carbon molten steel using vacuum degassing and decarburization treatment
In a vacuum degassing and decarburization treatment, the present invention uses a CO 2 gas as a recirculating gas and as a stirring gas without inviting stoppage of decarburization and an increase...
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5618032 |
Shaft furnace for production of iron carbide
Apparatus for the production of iron carbide in a shaft furnace, by reacting a carbon containing reducing gas as the process gas with particulate metal oxide material for an extended residence time...
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5451246 |
Process and device for heating and melting lumps of sponge iron
For heating sponge iron to temperatures of about 850° C. without substantial oxidation losses, there are provided at least two separate preheating stages at different temperatures, to which the...
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5327357 |
Method of decarburizing molten metal in the refining of steel using neural networks
A method of decarburizing molten metal in the refining of steel using neural networks with a first neural network trained to analyze data representative of many process periods of one or more...
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5293924 |
Manufacture of copper rod
A method is disclosed for improving the continuous casting process for making copper by using a probe and analyzer which measures the gases present in the molten copper and controls the process...
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5125963 |
Metallurgical controlling method
The present invention relates to a method for monitoring and control of smeltmetallurgical processes, endothermic as well as exothermic ones, preferably pyrometallurgical processes, by means of...
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5082044 |
Method and apparatus for controlling the composition of a molten metal bath
An apparatus has means for controlling the composition of a molten metal bath of various elements for providing a consistent molten metal product. The apparatus is automated and the addition of...
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4940487 |
Process for utilizing of zinc-containing metallurgical dusts and sludges
In a process for utiliting zinc-containing metallurgical dusts and sludges, the zinc-containing dusts and sludges are agglomerated, briquetted in a cold manner or pelletized and are added to the...
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4880459 |
Method of and apparatus for reducing iron oxide to metallic iron
This invention relates to a method and apparatus for reducing iron oxide to metallic iron, utilizing a continuous process employing a reducing gas with high hydrogen and carbon monoxide content...
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4875934 |
Method of deoxidizing molten ferrous metals
The present invention discloses a method for efficient aluminum deoxidation of ferrous melts, generally comprising preparation of a deoxidizing agent having a discrete layer of aluminum surrounding...
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4776884 |
Process for determining the arrangement of the layered charges in a blast furnace prior to smelting
A process for determining the arrangement of the layered charges in a blast furnace prior to smelting. Positioned in the layered charges in the blast furnace are a plurality of upright tubes in...
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4744822 |
Process for continuous purification of hot metal
A process for the continuous treatment of hot metal as it is running from the blast furnace, in order to enable low phosphorus and sulphur levels to be attained simply and cheaply, so that the...
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4568386 |
Process for purifying metals by insufflation and product produced thereby
A process for refining pig iron from below the surface of a molten metal bath, and the resulting product, in which an oxidizing gas is injected in the bath and, during the last refining stage, a...
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4564391 |
Method for the recovery of silver from silver zeolite
High purity silver is recovered from silver exchanged zeolite used to capture radioactive iodine from nuclear reactor and nuclear fuel reprocessing environments. The silver exchanged zeolite is...
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4551175 |
Method for controlling slag chemistry in a refining vessel
Method for slag chemistry control in a refractory lined vessel during the process of refining metal by the injection of oxygen gas during a period of oxidation and by the injection of nonoxidizing...
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4544407 |
Process for producing cast iron castings with a vermicular graphite structure
Cast iron with a vermicular graphite structure is produced by a process which involves the steps of determining the ratio of magnesium to sulphur in the melt and then adjusting the value of such...
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4525211 |
Process for producing a microkilled steel suitable for freerun continuous casting for subsequent cold forming
In order to produce a microkilled steel suitable for free-run continuous casting for subsequent cold forming standardizing of the C - content to ≤0.05%, preferably ≤0.03%, Si - content to...
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4428770 |
Methods of manufacturing metal from a melt, determination of sulfur and carbon therein, sensors therefor and solid electrolyte compositions for said sensors
Materials, methods and articles for the electrochemical determination of sulfur and carbon in fluids are provided. In accordance with a preferred embodiment, an electrolyte is furnished comprising...
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4419128 |
Continuous melting, refining and casting process
In a continuous melting, refining and casting process which comprises, substantially in series, a step of melting and carburizing steel scrap, iron scrap and/or reduced iron as a raw material in a...
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4401464 |
Injection metallurgy method and equipment for its execution
The invention relates to a method and equipment of producing with good reproducibility steel which is extremely free from slag inclusions, particularly steel with low sulphur content and thus very...
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4394165 |
Method of preliminary desiliconization of molten iron by injecting gaseous oxygen
The present invention provides a method for preliminary treatment of molten iron from a blast furnace wherein only desiliconization of the iron is effected. Gaseous oxygen is injected into the...
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4319923 |
Recovery of gold and/or palladium from an iodide-iodine etching solution
A method of recovering gold and palladium from a spent aqueous potassium iodide-iodine etching solution, and regenerating the etching solution for reuse, involves adjusting the spent solution to a...
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4247325 |
pH Control during leaching of aluminum slags
A technique for controlling severe chemical reactions which occur when salt containing furnace slags from secondary aluminum melting operations are brought in contact with water is provided. The...
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4238225 |
Method of monitoring conversion of iron ore into high content pellets
Apparatus and method for monitoring selected samples in situ in an iron ore converter the stages of reduction of the ore into iron sponge pellets having a desired iron content. The apparatus...
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4227921 |
Method of controlling a blast furnace operation
This invention relates to a method of controlling blast furnace operation by manipulating the following variables: oil injection rate, blast moisture, blast oxygen rate, blast rate blast...
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4211555 |
Method of controlling combustion in a metal melting furnace
Disclosed is a method of treating the components of a gaseous fuel mixture to obtain a predetermined mass ratio of the gaseous components for use in metallurgical melting furnace. Two streams of...
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4148629 |
Process for controlling a steel refining process for steels having a carbon content within the range of 0.1 to 0.8 % by weight
Process for controlling a steel refining process for steels having a carbon content within the range of 0.1-0.8 percent by weight, in which the desired final carbon content of the metal bath and...
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4121922 |
Method and apparatus for measuring percentage reduction in a metal ore reduction reactor
A method and apparatus for measuring the percentage reduction of iron ore in a reduction reactor of a multiple reactor gaseous reduction system. In accordance with a preferred embodiment, the flow...
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4055212 |
Control system and method for controlling the oxygen content in continuously cast metal
A control system and method for controlling the oxygen content in continuously cast metal. The control system includes means for sensing the oxygen content of the molten metal at a first point...
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3970448 |
Low alloy die steel (Type F)
A method of making a die steel, and the product thereof, in which melting to specified chemical ranges is subordinated to the achievement of a specified final property or properties, such as...
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3884680 |
Automatically controlling the oxygen content in copper and copper alloys
A process for maintaining a desired oxygen content in molten copper by generating an electrical signal proportioned to the oxygen content of the molten copper and using this electrical signal to...
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3816720 |
PROCESS FOR THE DECARBURIZATION OF MOLTEN METAL
A process for making steel by refining a predetermined mass of molten metal having a composition containing at least carbon and iron comprising: injecting oxygen into such mass with a gaseous...
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3816104 |
DEOXIDIZING NICKEL BASE AND COBALT BASE ALLOYS
A method of deoxidizing metal while maintaining the carbon content of the metal at a level about equal to or lower than the level prior to deoxidizing. It comprises the steps of introducing...
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3802869 |
PROCESS FOR THE TREATMENT OF ORE
A continuous process of treating ore to recover volatiles such as mercury and by-products is disclosed, including steps by which environmental contamination and health hazards are reduced and...
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3770421 |
METHOD AND APPARATUS FOR CONTROLLING THE COMPOSITION OF A REDUCING GAS USED TO REDUCE METAL ORES
Apparatus and method are described for controlling the addition of steam to recycled gas circulating in a closed loop including the reduction zone of a reactor and a catalytic reformer of a system...
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3681972 |
PROCESS AND DEVICE FOR DETERMINING THE OXYGEN CONCENTRATION IN METAL MELTS
The oxygen concentration in a metal melt, such as a steel melt, is determined by comparing the melting point temperature of a sample taken from the melt with the melting point temperature of the...
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