Abstract: A method, apparatus and system for processing a composite waste source, such as e-waste, is disclosed. The composite waste source may comprise low-, moderate and high-melting point constituents, such as plastics, metals and ceramics. The composite waste source is heated to a first temperature zone, causing at least some of the low-melting point constituents to at least partially thermally transform. The composite waste source is subsequently heated to a second, higher, temperature zone, causing at least some of the moderate-melting point constituents to at least partially thermally transform. At least some of the at least partially thermally transformed constituents may be recovered. The method, apparatus and system disclosed may provide for the recovery and reuse of materials which would otherwise be sent to landfill or incinerated.

Abstract: The invention provides a thermal cracking system which comprises a reactor, and a feed module or a solid product discharge module. The feed module transports a feed material from the outside environment to the reactor. While being transported, the feed material is heated by the feed module to become molten and fills up the interior of the feed module, thereby preventing air from entering the reactor. The solid product discharge module transports a solid product from the reactor to the outside environment. One end of the solid product discharge module is connected with the reactor. The other end of the solid product discharge module comprises a first opening interfacing with the outside environment.

Abstract: The present invention has for its object to provide an adhesive composition that is based on a naturally occurring material less likely to have adverse influences on the human body and has a tensile shear strength (adhesive strength) of at least 1 MPa with respect to a variety of adherends. The present invention provides an adhesive composition including at least a first pack and a second pack, wherein the first pack contains a tannic acid derivative in which a hydrogen atom in at least some hydroxyl group of tannic acid is substituted by a chain hydrocarbon group having at least one hydroxyl group, and the second pack contains a hydrocarbon having at least two cyanate groups or a derivative of the hydrocarbon.

Abstract: The present technology provides an illustrative apparatus for recycling electric arc furnace (EAF) dust and method of use related to the same. The apparatus has a heat controlling region coupled to a separation volume and includes at least one magnet and a cooling region. The heating controlling region operates at a temperature sufficient to transform at least some of the EAF dust into a mixture of gaseous zinc and one or more additional metals. The magnet separates the iron-rich material from the mixture of gaseous zinc and one or more additional metals and the cooling region condenses the gaseous zinc.

Abstract: The invention generally relates to a system and method for selectively removing metals from a metal containing substance, and more particularly to a method and system for selectively extracting metals from fly ash with one or more of an acidic extraction process, basic extraction process, and supercritical carbon dioxide (scC02) and a co-solvent extraction process. Moreover, bi-products from an industrial process, e.g., coal fired plant, may be utilized in the extraction processes.

Abstract: A method for removing metal and/or precious metal-containing depositions from substrates, wherein said substrate is subjected to treatment with an organo amine protectant component P and an inorganic active component A. Component P may be formed in situ by reaction with component R. Component P is an organic amine and/or organic amine hydrochloride (preferably diisopropylamine hydrochloride), component A is an inorganic compound (preferably inorganic acid or a mixture thereof) and component R is an organic compound that can be split along the C—N bond by the component A into an organic amine (preferably dimethylformamide or N-methyl pyrrolidone). The metals in the form of organo-metallic complexes can be isolated and/or separated by means of different chemical reactions (preferably reduction reactions) and/or biosorption (preferably with seaweed or yeast).

Abstract: The present invention provides a composition for collecting a metal component from a metal component-containing material, the composition containing a compound containing at least one element selected from the group consisting of lanthanoid elements and elements in group 2 of the periodic table, and a compound containing at least one element selected from the group consisting of elements in groups 3, 4, 12, and 13 of the periodic table and transition metal elements in the 4th period of the periodic table. The present invention further provides a method for collecting a metal component using this composition. With the use of the composition of the present invention, a metal component can be easily and efficiently collected from a material containing a highly useful metal component such as noble or rare metal.

Abstract: An apparatus for recovering solder from solder coated scrap pieces includes a first centrifuge comprising a centrifuge receptacle having perforation holes, rotatably mounted about a first centrifuge axis for containing and rotating a quantity of solder coated scrap pieces. A solder collection container can surround the centrifuge receptacle. A heater can surround the solder collection container for heating the solder coated scrap pieces and melting the solder thereon. A drive system can be configured for rotating the centrifuge receptacle while the first centrifuge axis is in about a horizontal position at a low speed that tumbles the scrap pieces along a longitudinal length of the centrifuge receptacle, and later rotating the centrifuge receptacle at a high speed for centrifugally extracting molten solder from the centrifuge receptacle, radially outwardly through the perforation holes into the solder collection container.

Abstract: 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 a chlorine atmosphere, thereby removing the vanadium and the iron from the DeNOx catalyst, and a second heating step, performed after the first heating step, of heating the DeNOx catalyst in a chlorine atmosphere while the catalyst is exposed to a gas of a hydrocarbon compound (excluding CH4) or an oxygen-containing carbon compound, thereby volatilizing the tungsten and the titanium from the DeNOx catalyst, and recovering the tungsten and the titanium from the DeNOx catalyst.

Abstract: Methods of manufacturing Fe and Ni-containing material and Co-containing material from petrochemical desulfurization residue containing Fe and Ni or Fe and Co, manufacturing raw material for stainless steel using the Fe and Ni-containing material, and manufacturing ferro-nickel using the Fe and Ni-containing material. The method of manufacturing Ni and Fe-containing material includes acid-treating Ni and Fe-containing residue to remove alkali therefrom; drying the residue and heat treating the residue in a temperature range from 600° C. (degree Centigrade) to 1300° C.

Abstract: An improved method of reducing a mixed metal oxide composition comprising oxides of nickel, cobalt, copper and iron in a hydrogen atmosphere to produce a mixture of the respective metals, the improvement wherein the atmosphere further comprises water vapor at a concentration, temperature and time to effect selective reduction of the oxides of nickel cobalt and copper relative to the iron oxide to produce the metallic mixture having a reduced ratio of metallic iron relative to metallic nickel, cobalt and copper.

Abstract: A method for recycling of thin film Cadmium Telluride photovoltaic modules at the end of their life, and manufacturing scrap, has been developed. This method allows for minimum glass fine generation, requires little or no acid compared to other methods, and generates a pure cadmium and tellurium product at recoveries in excess of about 80 percent. In addition, the process allows for the recovery of a clean soda-lime plate glass product.

Abstract: There is provided a process for recovering AB5 alloy from spent nickel hydride storage batteries and/or their cells without thermal melting or dissolving the AB5 alloy. The process comprises a step of dissolving the Ni(OH)2 and separating AB5 alloy and still containing the lanthanum metal.

Abstract: Iron impurities may be removed from volumes of molten aluminum or magnesium metals or alloys by applying a static magnetic field gradient to each of the molten metal volumes, or melts. The magnetic field gradient is applied to each of the melts so that separate-phase iron impurities suspended therein will move in the direction of the applied magnetic field and become concentrated in a predetermined region of the of the melts, thereby forming an iron-rich region. The remaining iron-depleted region of each of the melts can be physically separated from the as-formed iron-rich region and cast into shaped articles of manufacture or into semi-finished articles for further processing. Such articles will have a lower iron-content than the original molten metal volumes.

Abstract: A method to obtain a manganese steel alloy having a percentage weight of carbon varying from about 0.5% to about 2%, a percentage weight of manganese varying from about 10% to about 20%, and a percentage weight of titanium varying from about 0.01% to about 5%. The method comprises at lest a step wherein a determinate quantity of steel scarp with manganese or steel scarp with carbon is melted in order to define a metal bath, a step wherein, in order to deoxidize the metal bath a determinate percentage weight of aluminum is added, a step wherein a determinate percentage weight of nitrogen is added, a step wherein a determinate percentage weight of titanium is added, and a step wherein the metal bath is cast at a determinate temperature.

Abstract: The present invention provides a metal component collection agent for collecting one or more metal components from a metal component-containing material; the agent containing, as an active ingredient, a compound containing one or more group 2 elements of the periodic table, or a compound containing one or more lanthanoid elements. The present invention further provides a method for collecting one or more metal components from a metal component-containing material; the method comprising heating the metal component-containing material and the metal component collection agent in such a manner that a metal vapor or metal oxide vapor produced by heating the metal component-containing material is brought into contact with the metal component collection agent. According to the present invention, metal components can be easily and efficiently collected from materials containing highly useful metal components such as noble or rare metal.

Abstract: Complete dezincing of steel scrap is achieved by the addition of oils, whereupon the dissolution of iron is substantially suppressed through the autogenous inhibition effect of the oils. The steel scrap arising when the dezincing process has been completed is protected against corrosion by the remaining film of oil, the corrosion protection preventing the formation of iron oxide layers and thus blackening of the scrap material. The oil discharged with the dezincing solution can be separated as a pure phase by resorting to flotation in support of the process and can then be reused as an inhibitor.

Abstract: A method for recovering a valuable material from a lithium-ion secondary battery, the method contains: roasting a lithium-ion secondary battery containing a valuable material in a metal battery case thereof to obtain a roasted material; stirring the roasted material with liquid to separate contents containing the valuable material from the inside of the metal battery case; and sorting the contents separated by the separation and the metal battery case to obtain a recovered material containing the valuable material.

Abstract: The present invention relates to a process for improving energy supply when heating and melting a scrap bulk wherein a preheated oxidizing gas with addition of fossil fuels melts a channel into the scrap bulk and further energy supply occurs through this channel. A significant improvement of the process is achieved by supplying hot blast to the scrap bulk from the top.

Abstract: A system for recovering precious metals. A container is configured to receive recyclable materials. The recyclable materials include non-metallic materials, base metals and precious metals. A separating solution is disposed in the container and is configured to separate the base metals and the precious metals from the non-metallic materials. The non-metallic materials, base metals, and precious metals are subsequently separated from each other.

Abstract: A method of separating metals that are physically or structurally combined in assemblies which includes the steps of: providing at least one assembly that comprises two or more different metals that are physically or structurally combined; heating the at least one assembly in a tunnel kiln furnace to melt at least one of the different metals while maintaining at least one of the different metals in a solid state; and separating the at least one of the different metals that was melted from the at least one of the different metals that was maintained in the solid state. According to one embodiment the assemblies are “copper meatballs.” Also disclosed is a system for separating metals that are physically or structurally combined in assemblies which system includes a tunnel kiln furnace and processing containers or processing containment assemblies into or onto which the assemblies are loaded and transported through the tunnel kiln furnace in.

Abstract: A silicon purification method includes a solidification purification step comprising: preparing the base material to be purified, loading the base material into a crucible, irradiating part of the base material, and fully melting the base material; gradually solidifying the base material by gradually weakening an electron beam so that the solidification proceeds until the solidifying portion occupies a first predetermined ratio of the base material; loading the remnant of the base material into the crucible, and fully melting the remnant of the base material by irradiating the entire area of the remnant of the base material with the electron beam; gradually solidifying the molten metal portion by gradually weakening the electron beam so that the solidification proceeds until the solidifying portion occupies a second predetermined ratio of the molten metal portion; and removing an unsolidified molten metal portion.

Abstract: A method for refining a metal such that, after a base material derived from the metal is melted by being irradiated with an electron beam, the base material is refined by solidifying the base material which was melted, the method including: a step melting all of the base material by irradiating the electron beam over an entire surface of the base material loaded inside a water-cooled crucible placed inside a high vacuum atmosphere; a step gradually solidifying the base material which was melted from a molten metal bottom part of the base material which was melted toward a molten metal surface part at a side being irradiated by the electron beam by gradually weakening an output of the electron beam while maintaining a condition in which the base material which was melted is irradiated with the electron beam; and a step removing a molten metal part which is not solidified, after the base material which was melted is solidified to a certain percentage.

Abstract: A revert alloy is used in the manufacture of a target alloy having a different composition. The weight percent of the elemental constituents of this first alloy and a second or target alloy are obtained, and the ratio of the percentage by weight of each elemental constituent in the first alloy to the second alloy is determined. The lowest ratio is used to determine the amount of the first alloy that is melted and the necessary elemental constituents that are added to the melt to produce the desired composition of the target alloy. The melt is solidified to produce the target alloy.

Abstract: A process is disclosed for separation and recovery of vanadium, molybdenum, iron, tungsten, cobalt and nickel from alumina-based materials, mattes, ores, manufacturing by-products and waste. These elements are oxidized. The oxides are reacted with gaseous HCl to form volatile chloride-bearing compounds that subsequently sublimate. The volatile compounds are condensed in a downward-stepped thermal gradient that allows collection of moderate to high purity compounds of individual elements with exception of a nickel-cobalt co-condensate. Nickel is separated from cobalt by precipitation of nickel chloride from concentrated HCl pressurized with gaseous HCl.

Abstract: A method for recovering rare earth metals from zeolite-containing waste FCC catalysts comprises an acid leaching step to remove the rare earth metals from the catalyst to form a leachate containing dissolved rare earth metals and separating the rare earth metals from the leachate such as by precipitation.

Abstract: A thermal system for separating out co-mingled metals in almost pure form, the system including a tunnel kiln having temperature zones through which the co-mingled metals are conveyed and progressively heated until at least one metal of the co-mingled metals melts thereby separating the melted metal from the other metal or metals of the co-mingled metals. The system includes molten metal catch basins for collecting the melted metal which are arranged beneath a conveyor on which the co-mingled metals are transported within the kiln. The catch basins are tapped to the outside of the kiln so that as the various metals melt out at progressively higher temperatures, they can be collected into cast iron chills or other collection devices to form pure ingots.

Abstract: A metal regeneration method including: a melting furnace cleaning step of melting pure aluminum with an aluminum content of 99.5% by weight or higher in a melting furnace to clean the inside of the melting furnace; and a metal regeneration step of melting waste lithographic printing plates selected from unused lithographic printing plates and used lithographic printing plates, in the melting furnace whose inside has been cleaned by the melting furnace cleaning step, to obtain regenerated metal.

Abstract: A method of separating metals that are physically or structurally combined in assemblies which includes the steps of: providing at least one assembly that comprises two or more different metals that are physically or structurally combined; heating the at least one assembly in a tunnel kiln furnace to melt at least one of the different metals while maintaining at least one of the different metals in a solid state; and separating the at least one of the different metals that was melted from the at least one of the different metals that was maintained in the solid state. According to one embodiment the assemblies are “copper meatballs.” Also disclosed is a system for separating metals that are physically or structurally combined in assemblies which system includes a tunnel kiln furnace and processing containers or processing containment assemblies into or onto which the assemblies are loaded and transported through the tunnel kiln furnace in.

Abstract: A method is provided herein for performing a leaching process on a substrate (113). In accordance with the method, a freeze wall (115) is created which isolates a portion (117) of a substrate, and the isolated portion of the substrate is subjected to a leaching process.

Abstract: A system and associated process are provided for recovering cadmium telluride (CdTe) that has plated onto components, such as components used in the manufacture of photovoltaic (PV) modules. The system includes a vacuum oven configured for maintaining a vacuum and being heated to a temperature effective for sublimating CdTe off of components placed within the oven. A collection member is disposed so that sublimated CdTe generated in the oven diffuses to the collection member. The collection member is maintained at a temperature effective for causing the sublimated CdTe to plate thereon. The collection member is subsequently processed to collect the plated CdTe.

Abstract: A method of recovering rhenium from rhenium-containing superalloy scrap is provided. The superalloy is usually a nickel-based superalloy. The method includes the steps of forming an oxidation feedstock of flaky morphology of the superalloy scrap, and oxidizing the oxidation feedstock to convert rhenium into a volatile rhenium oxide. The flaky morphology of the oxidation feedstock is achieved by increasing the surface area of the superalloy scrap.

Abstract: Process for recovering metals from metal-containing wastes and materials, characterized in that the metal-containing waste is preferably introduced continuously into a process chamber, treated thermally with continuous intensive mixing, the organic components are continuously removed and subsequently oxidized and the metal-containing components, preferably as metal conglomerates, and the further inorganic metal-free components are discharged essentially continuously from the process chamber and a plant for carrying out the process.

Abstract: 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 in the tin ash to be melted again to join the liquid tin; and scooping up and recycling the tin ash not melted in the tin liquid. The method precludes a waste of tin resources and high manufacturing costs which might otherwise arise from directly scooping up dross of high tin content.

Abstract: A system and associated process are provided for recovering cadmium telluride (CdTe) that has plated onto components, such as components used in the manufacture of photovoltaic (PV) modules. The system includes a vacuum oven configured for maintaining a vacuum and being heated to a temperature effective for sublimating CdTe off of components placed within the oven. A collection member is disposed so that sublimated CdTe generated in the oven diffuses to the collection member. The collection member is maintained at a temperature effective for causing the sublimated CdTe to plate thereon. The collection member is subsequently processed to collect the plated CdTe.

Abstract: Disclosed is a process and apparatus for the treatment of divided metal residues contaminated by one or more organic compounds, including mixing, inside a chamber, of metal residues with at least one calcium/magnesium compound capable of reacting exothermically with water; exothermic reaction of the at least one calcium/magnesium compound with the water that the metal residues contain; rise in temperature of the metal residues subject to an exothermic reaction; dehydration of the metal residues during this exothermic reaction; oxidation of the organic compounds during the mixing, by bringing the metal residues contaminated by one or more organic compounds mixed with the at least one calcium/magnesium compound into contact with a gas stream containing at least partly oxygen; and removal from the chamber of a handleable dehydrated treated product having a residual content of organic compounds of less than 1% by weight of the treated product.

Abstract: The invention relates in particular to a method for the recovery of at least one non-ferrous metal (11) contained in scrap (9), by melting the scrap (9) in a furnace (1), the method comprising: a step of charging the furnace (1) with scrap (9), a step of melting the scrap (9) in order to separate the at least one non-ferrous metal (11) from other components (13) which the scrap (9) comprises. The method is noteworthy in that it comprises a step of adding a silica-comprising product (15) in an amount which is sufficient to form an airtight layer on the surface of the scrap (9).

Abstract: Methods of manufacturing Fe and Ni-containing material and Co-containing material from petrochemical desulfurization residue containing Fe and Ni or Fe and Co, manufacturing raw material for stainless steel using the Fe and Ni-containing material, and manufacturing ferro-nickel using the Fe and Ni-containing material. The method of manufacturing Ni and Fe-containing material includes acid-treating Ni and Fe-containing residue to remove alkali therefrom; drying the residue and heat treating the residue in a temperature range from 600° C. (degree Centigrade) to 1300° C.

Abstract: A process for processing metallurgic residue that is obtained from electric steelworks dust, ESD, essentially containing iron and zinc in the form of zinc oxide and zinc ferrites, as well as a processing of the blast-furnace slags, BFS, and a combination with a synergy effect.

Abstract: The invention relates to a method for recovering gold from an acid digest of a gold-containing copper anode slime. The acid digest is selectively extracted with an alcohol having low miscibility with water. Gold is then recovered from the resulting alcoholic extract.

Abstract: Provided is an epoxy resin composition which excels in heat resistance properties and electrical properties, and is easily decomposable for the recycling of resources. The epoxy resin composition includes an epoxy compound and a curing agent, in which at least one of the epoxy compound and the curing agent contains a hydrolyzable tannin having a weight-average molecular weight (Mw) of 500 to 5000.

Abstract: Methods and systems for removing copper from ferrous scrap are described. Some amounts of copper in ferrous scrap are removed by oxidation and subsequent mechanical impact of the oxidized scrap. Further removal of copper from the solid scrap can be achieved by fluxing the copper oxide below the melting point of ferrous scrap using CaO—SiO2—B2O3— and Na2O—SiO2—B2O3-based slags. Using the invention, copper can be removed from ferrous scrap in a natural, cost-effective, and environmental-friendly manner.

Abstract: Provided is a film electrode assembly which can acquire unique information on a film electrode assembly even from the film electrode assembly alone. The film electrode assembly includes: a polymer electrolyte film; a pair of catalyst electrodes formed by a fuel pole and an air pole arranged to sandwich the polymer electrolyte film; and a unique information unit which contains unique information on the film electrode assembly. The unique information includes information on a catalyst composition of the catalyst electrode. More specifically, the unique information may be a content of Pt contained in the catalyst electrode.

Abstract: In a method and a system for sorting shredder residues of metal-containing wastes, in particular from vehicle body shells, shredder residues are separated into a shredder light fraction and a non-ferromagnetic fraction. The method and system provide for a raw-granulate fraction being produced during the sorting of the shredder light fraction and the shredder heavy fraction in preliminary processes and a main process, by separating out at least one ferromagnetic fraction, a nonferrous-metal fraction, a fiber fraction, and a sand fraction, and the raw-granulate fraction being split up in a refining process.

Abstract: A method of recovering the metal from automobile scrap and electronic waste. It includes separating the automobile scrap and the electronic waste to provide some metal pieces, washing and/or shredding and/or selecting said metal pieces to provide some groups of metal pieces having the same metal element, making a full-elemental analysis, comparing the weight of different metal pieces having the same metal element and attaining different combinations of value, weighted averaging the combination of value to calculate the full-elemental weighted average according to the different combinations of value, comparing the different full-elemental weighted averaging to different composite material, and finding a optimal set or some optimal sets, further disposing metal pieces according to the optimal set, and manufacturing alloy. Present invention has a lot of advantages, such as reducing pollution and cost, and processing more waste.

Abstract: A reduction treatment apparatus can include a reduction furnace configured to reduce zinc and/or iron oxide thorough heat treatment of zinc-containing iron oxide or zinc oxide or iron oxide, with a reducing material. The reduction treatment apparatus also has an oxide inlet configured to supply to the reduction furnace the zinc-containing iron oxide or zinc oxide or iron oxide. The reduction treatment apparatus further has a reducing material inlet configured to supply to the reduction furnace the reducing material. The reducing material can comprise at least one of ASR, shredder dust of home electric appliances, waste plastics, PDF, RPF, sludge, oil mud, chips of wood, thread debris, rubber debris, and animal and plant residues. The reduction furnace can be configured to use the reducing material as a heating material and reduce the zinc-containing iron oxide or zinc-oxide or iron oxide without auxiliary fuel.

Abstract: The invention relates to a process for recycling fuel cell components containing fluorine-containing and precious metal-containing constituents: in this process, the fluorine-containing constituents are separated off from the precious metal-containing constituents by treatment with a medium present in the supercritical state. Preference is given to using water as supercritical medium. After the fluorine-containing constituents have been separated off, the precious metal-containing residues can be recovered in a recycling process without harmful fluorine or hydrogen fluoride emissions. The fluorine-containing constituents can likewise be recovered. The process is used in the recovery of precious metals and/or fluorine-containing constituents from membrane fuel cells, electrolysis cells, batteries, sensors and other electrochemical devices.

Abstract: This invention provides a method and apparatus for recovering In in the form of an alloy or a metal simple substance as a valuable material from waste LCD. In the In recovery method and apparatus, there is no need to recover In as indium hydroxide, and In can be recovered as a valuable metal. Accordingly, unlike the case of indium hydroxide, the recovery does not suffer from poor handling, and In can easily be recovered through a filter or the like with significantly improved In recovery.

Abstract: The present invention relates to a method for treating of oil contaminated, metal-containing solids, in particular spent catalysts. The solids are cleaned with a dense phase gas and then metal is recovered from the cleaned solids.

Abstract: A method and device for the purification and separation of purified metal from a metal mother liquid having a specific density and comprising one or more foreign element(s). The method includes: providing in a column device a starting material including metal crystals and a metal mother liquid including at least one foreign element; applying a temperature difference between a relatively hot zone at the upper end of the column and a relatively cool zone at the lower end of the column; a separation step wherein at least a part of the metal crystals is separated from the metal mother liquid by rising of the metal crystals to the upper surface of the metal mother liquid; and a further separation step wherein purified metal floating on the upper surface of the metal mother liquid is discharged from the column device.