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7226494 |
Secure postage payment system and method
In a postage payment system, a secure integrated circuit (IC) card is used to manage postage funds, and create encrypted postage indicia. Among other things, the system is capable of performing...
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7217312 |
Method of recycling metallic coated scrap pieces
A method of recycling metallic coated scrap pieces wherein the coating layer liquidus temperature is lower than the core layer solidus temperature, such as brazing sheet scrap pieces, or metallic...
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6932853 |
Mechanical separation of volatile metals at high temperatures
A method of operating mechanical separation devices at high temperatures to separate various volatile metals, metal halides and metal oxides to produce high purity materials.
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6338446 |
Method of removing a metallic coating layer from scrap metal pieces
A metallic coating layer is removed at least partly from scrap metal pieces having a core and the coating layer on the core. The coating layer has a lower melting temperature than the core. The...
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6332909 |
Processing apparatus, processing system and processing method
A processing apparatus capable of separating and recovering resins and metals, respectively, from an object being processed, which has resins and metals as its constituent, comprises a first...
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6268590 |
Apparatus and method for continuous retorting of mercury from ores and others mercury contaminated materials
A mercury retorting apparatus, a retorting system, and a method for continuous removal of mercury from dry, semi-granular, and sludge materials contaminated with mercury without shutting down the...
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6139601 |
Method of recycling simultaneously a plurality of oil filters
A method of simultaneously recycling a plurality of used oil filters involves placing a plurality of the filters into a rectangular compartment having a top, opposite sides, a bottom, and first and...
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6126716 |
Iron-base scrap preheating apparatus and method
In order to preheat pieces of iron scrap of various sizes and shapes highly effectively while avoiding the fusion of the pieces of iron scrap, a rotary kiln type preheating furnace and a shaft type...
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6080224 |
Method for processing waste containing metal contaminants using a reducing agent
The invention relates to a method for processing waste that contains contaminants. The contaminants may be metals modified by carbon, oxygen, phosphorus, or sulfur. The waste in the form of a...
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6007599 |
Method for re-utilizing scrap steels
A methods for re-utilizing, for example, scrap steels are provided. A method is provided for separating Sn-containing oxides from steel by blowing Sn-containing oxides away from a steel using a...
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6007597 |
Electron-beam melt refining of ferroniobium
Niobium, Nb, is refined from FeNb by electron beam melt refining. The amount of the impurities in the FeNb which form suboxides with oxygen is optionally determined. Sufficient oxygen is added to...
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5849062 |
Method for recovering metallic materials of gas generator for air bag
To provide a method for taking out gas generators readily from waste vehicles and then recovering metallic materials of gas generators taken out efficiently. The method is comprised by a) crushing...
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5755853 |
Process for the treatment of solid residues containing metals, in particular residues from the cleaning of household garbage incineration smoke
This process comprises; mixing (1) the solid residues with a solid reducing agent; treating (2) the mixture in a furnace at a temperature above 1000° C. to obtain (3) a vitrified product rendered...
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5698759 |
Treatment of polyvinylchloride
A method is described which allows two hazardous waste products, namely PVC and electric arc furnace dust, both of which have negative commercial value, to be combined to produce an iron oxide...
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5575907 |
Process for the recovery of raw materials from presorted collected waste, especially scrap electrochemical batteries and accumulators
The invention relates to a process for the recovery of raw materials from presorted collected waste, especially scrap electrochemical batteries and accumulators in which the scrap (10)is first...
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5567223 |
Method for dealing with mercury-containing waste
A method for dealing with mercury-containing waste including button-type batteries, wherein the waste is heated in a furnace while being agitated and in the presence of elementary selenium vapour...
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5387273 |
Process for removing copper in a recoverable form from solid scrap metal
A process for removing copper in a recoverable form from a copper/solid ferrous scrap metal mix is disclosed. The process begins by placing a copper/solid ferrous scrap metal mix into a reactor...
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5350438 |
Method and apparatus for removing plated metal from steel sheet scraps
Metal plated steel sheet scraps are heated to a temperature in the range of about 200° C.-500° C. so that organic material adhered to the scraps is evaporated and removed. Then, the scraps from...
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5342428 |
Separation of free lead from aluminum beverage cans
A method for removing free lead from a feed stream of used aluminum beverage cans (UBC) to reduce the total lead content of the feed stream. The UBC material is shredded, heated to a temperature...
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5294244 |
Thermal reclamation method for the recovery of metals from air bag inflators
A method of recovering an aluminum alloy and a stainless steel alloy from an air bag inflator 10 that has aluminum alloy parts, including an aluminum alloy housing 12 and non-aluminum alloy parts,...
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5205857 |
Method and apparatus for recovering substance adhered to object to be processed
A method for recovering substance such as zincing or the like adhered to the surface of an object to be processed, by causing such materials to be evaporated in a vacuum. In this method, the object...
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5199975 |
Method for processing used battery
The invention relates to a method for recovering cadmium in used nickel-cadmium batteries by heat treatment. According to the invention, a plastic case for a battery can be separated from a battery...
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5198018 |
Pyrolysis process and apparatus
A process and apparatus for the continuous pyrolytic decomposition of a feed material having an organic and an inorganic component and recovery of the inorganic component, carbon-free, for reuse in...
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5186740 |
Method for preheating scrap iron by pyrolysis of resinous residues contained therein, with total recovery of their energy content and improvement of the steelmaking cycle
This method of preheating scrap iron mixed with plastic, rubber and resinous, ie organic, materials and intended for electric furnaces, in particular electric arc furnaces, is characterized by...
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5112389 |
Process for the removal of an embedding body from the embedded component
A process and an arrangement are disclosed for the removal of a low-melting embedding body from a higher-melting embedded component. A groove is provided along a molding-in base of the component...
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4552342 |
Method and apparatus for preheating and charging scrap in steelmaking
Scrap metal for steelmaking in a converter is preheated by a heating installation and subsequently charged into a charging trough. The preheating takes place in a separate furnace which is aligned...
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4518423 |
Method for preparing a low residual alloy steel charge from scrap metal
A process is disclosed for treating tin scraps such as tin cans and home scrap, to reduce the tin content of the scrap to a sufficient level to permit the scrap to be reprocessed in an electric...
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4498523 |
Continuous method for reclaiming, melting and casting aluminum scrap
A continuous process is disclosed for the recovery of an aluminum alloy from aluminum scrap containing more than one alloy. The recovery is made in a manner which will conserve energy. The process...
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4468847 |
Method of segregating metallic components
A method of detaching and segregating metallic components secured to metallic articles is disclosed. The segregation is made in accordance with the alloy composition of the components. The method...
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4457494 |
Metal melting furnace
A refractory lined melting furnace particularly suited for separation of non-ferrous metals with embedded or attached ferrous components, includes a casing or body pivotally mounted and tiltable by...
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4430119 |
Selective removal of magnesium in the consumption of aluminum used beverage container scrap
The magnesium content in used aluminum scrap is reduced by preheating the scrap to a temperature sufficiently high to promote migration of the magnesium to the surface of the scrap. Thereafter, the...
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4383678 |
Electric furnace scrap handling mill layout
A mill layout operating apparatus system and procedure for maximizing the recovery of exhaust or effluent gases from an electric arc metal refining or melting furnace is provided that makes use of...
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4227922 |
Material separation
A metal or alloy, present in material containing another metal or alloy having a higher melting point, can be recovered by heating the material in conditions preventing oxidation of the lower...
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4203762 |
Process for separating and recovering aluminum and steel from bimetal scrap
A process for separating and recovering aluminum lining from a ferrous backing strip without incurring appreciable formation of contaminating iron-aluminum intermetallic compounds by subjecting...
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4119454 |
Smelting method
An improved method is provided for smelting steel from scrap in an electric arc furnace which reduces energy consumption, reduces operating noise, and improves the product quality in relation to...
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4086083 |
Recovering material
This invention is a method of recovering an expensive bearing lining alloy from a multilayer bearing material comprising the alloy bonded to a steel backing, possibly through a pure aluminium foil....
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4025335 |
Method for the recovery of useful metallic components
Disclosed is a method for the recovery of useful metallic components such as lead, tin, copper, etc. from a closely layered member having its surface layer of copper or a copper or aluminum alloy...
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3984090 |
Metal recovery method
A non-ferrous metal is recovered from a batch of scrap material by combustion of a fuel to generate heat and transmittal of said heat to the material by convection flow. The flow rate of fuel is...
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3837791 |
APPARATUS AND PROCESS FOR PREHEATING SCRAP IRON
Preheating is carried out in two time-stages. During the first stage, the burner performance is initially at a maximum and when the temperature below the charged basket reaches a certain...
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3762911 |
METHOD OF REFINING SCRAP, ESPECIALLY OF COPPER-NICKEL ALLOY
A method of refining scrap of a high-melting-point metal alloy, especially a copper-nickel alloy, in which the scrap is heated in vacuo to a temperature lower than the smelting point of the scrap,...
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3736896 |
METHOD AND APPARATUS FOR SEPARATING END PORTIONS FROM METAL CANS
A method and apparatus for separating the end portions, or lids from a metal can including a cylindrical steel body portion and aluminum end portions wherein the aluminum end portions are melted...
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3657997 |
RECOVERING METAL VALUES
Materials containing metal values and contaminants are subjected to a grinding operation to selectively pulverize the contaminants while minimizing grinding action on the metal values. Selective...
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3630675 |
SELECTIVE OXIDATION OF FERROUS SCRAP
A method for utilizing ferrous scrap, particularly automobile scrap, comprising selectively oxidizing the scrap under conditions such that portions of the scrap having a thickness less than about...
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3615357 |
REMOVAL OF TIN FROM COPPER SCRAP
Removal of metallic tin from copper scrap on which the tin is present as a coating by heating in a controlled atmosphere whereby the tin is removed as a volatile chloride.
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3556500 |
METHOD AND APPARATUS FOR SEPARATING METALS FROM COMINGLED SCRAP METAL
Separating a scrap nonferrous and ferrous metal mixture into its constituent components by breaking it into approximately equal size pieces and passing it through a furnace having heating zones,...
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3550925 |
APPARATUS FOR SEPARATING METALS
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3539163 |
VIBRATING REFRACTORY FURNACE
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3538589 |
METHOD FOR RECLAIMING COMPOSITE METAL SCRAP
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3484231 |
METHOD OF CONVERTING SCRAP AUTOMOBILE BODIES TO HIGH GRADE PIGS
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3442643 |
RECOVERY OF ELECTROPLATE UTILIZING MOLTEN LEAD
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