| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 075671000 |
Aluminum(Al)
| 28 |
| 075638000 |
Copper(Cu)
| 17 |
| 075611000 |
Refractory metal, singly or in combination
| 15 |
| 075594000 |
Magnesium(Mg)
| 14 |
| 075631000 |
Noble metal, singly or in combination
| 14 |
| 075693000 |
Lead(Pb)
| 6 |
| 075628000 |
Nickel(Ni) | 4 |
| 20190144971 | METHOD FOR SMELTING OXIDE ORE | 05-16-2019 |
| 20100307292 | METHOD OF REGULATING NICKEL CONCENTRATION IN LEAD-FREE SOLDER CONTAINING NICKEL - A method by which the amount of nickel contained in an alloy having a composition represented by Sn—X—Ni can be regulated. The method of nickel concentration regulation comprises adding phosphorus to Sn—X—Ni in a molten state (wherein X is one or more elements selected from the group consisting of Ag, Zn, Cu, Bi, Au, Ti, Ge, Ga, Si, and Ce), holding the mixture at 250-400° C., and removing the resultant dross floating on the surface of the liquid phase and containing a P—Ni compound and a P—Sn—Ni compound. An example of X is copper, and the content thereof may be 0.3-5 wt %. The phosphorus may be added in the state of a Sn—P alloy. The upper limit of the amount of the phosphorus to be added may be about half the nickel amount in terms of atomic amount. | 12-09-2010 |
| 20140020510 | RECOVERY OF BASE METALS FROM SULPHIDE ORES AND CONCENTRATES - The present invention discloses a new recovery of base metals from sulphide ores and concentrates, which comprises mixing the base metal's ore with ferric salts, heating the said mixture; adding water to form a pulp, stirring and filtering the pulp. | 01-23-2014 |
| 20150315673 | METHOD FOR PRODUCING MATTE OR CRUDE METAL IN A SUSPENSION SMELTING FURNACE AND SUSPENSION SMELTING FURNACE - A method is provided for producing matte such as copper or nickel matte or crude metal such as blister copper in a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. Also provided is a suspension smelting furnace such as a flash smelting furnace or a flash converting furnace. The suspension smelting furnace comprises a reaction shaft, a settler in communication with a lower end of the reaction shaft, and an uptake shaft. The settler extending in two opposite directions from a landing zone for a jet of oxidized suspension below the reaction shaft in the settler so that the settler comprises a first settler part on a first side of the landing zone and a second settler part on an opposite second side of the landing zone. | 11-05-2015 |
| 075626000 |
Cobalt(Co) | 3 |
| 20100275731 | APPARATUS AND PROCESS FOR MAKING HIGH PURITY NICKEL - 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 vapour 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. | 11-04-2010 |
| 20120011966 | USE OF LIQUID-CRYSTAL DISPLAYS, AND PROCESSES FOR THE RECYCLING THEREOF - The present invention relates to the use of liquid-crystal displays (LCDs), and to processes for the recycling thereof. The processes according to the invention are characterised in that the LCDs are employed at least partly as replacement for other raw materials. In general, the LCDs are thermally treated here at a temperature in the range from 900 to 1700° C. | 01-19-2012 |
| 20120240729 | Process for the Valorization of Metals from Li-Ion Batteries - The invention concerns a recycling process for recovery of metals from Li-ion batteries. More particularly, an autogeneous process is disclosed for the recovery of Co from Li-ion batteries also containing Al and C, comprising the steps of: —providing a bath furnace equipped with means for O | 09-27-2012 |
| 075654000 |
Zinc(Zn) | 3 |
| 20100050814 | Recovery of Non-Ferrous Metals from By-Products of the Zinc and Lead Industry using Electric Smelting with Submerged Plasma - This invention relates to a single-step pyrometallurgical process for the recovery of non-ferrous metals from zinc bearing residues, in particular from by-products of the zinc and lead industry such as goethite and jarosite. A process for the recovery of metals from industrial Zn residues containing Zn, Fe and S is defined, wherein Zn is fumed, Fe is slagged, and S is oxidized to SO | 03-04-2010 |
| 20100126312 | DIRECT SMELTING OF ZINC BEARING COMPOUNDS TO PRODUCE METALLIC ZINC - A process and apparatus for producing lead and zinc from concentrates of zinc and lead sulfides or oxides includes the steps of:
| 05-27-2010 |
| 20160177416 | METHOD FOR RECOVERING ZINC FROM ELECTRIC FURNACE STEELMAKING DUST AND DEVICE FOR RECOVERING ZINC FROM ELECTRIC FURNACE STEELMAKING DUST | 06-23-2016 |
| 075690000 |
Tin(Sn) | 3 |
| 20150376735 | TIN STRIPPING ADDITIVE AND APPLICATION THEREOF - The present invention provides an additive for tin stripping, comprising 0.1 to 20 wt % of copper corrosion inhibitor and 0.1 to 20 wt % of nickel corrosion inhibitor; wherein said weight percentage is based on the total weight of said additive. The present additive can be used with nitric acid conventionally used for metal-stripping for not only reducing the usage of nitric acid but also improving the efficiency of tin stripping. The present invention also provides a method for Tin recycle and a reaction tank for metal recycle. Both of them are favorable for satisfying the needs of metal recycle (especially, tin recycle) in the field. | 12-31-2015 |
| 20140060252 | METHOD OF PRODUCING TIN EMITTED LOW ALPHA RADIATION BY USING VACUUM REFINING - A method of producing a purified tin, which emits low alpha radiation by using a vacuum refining has developed: the steps are comprising: preparing a crude tin; containing the crude tin in a crucible and placing it in a vacuum furnace; and removing the impurities, which have higher vapor pressures and low boiling points than that of the tin from the vacuum furnace. The impurities, such as a lead and bismuth can be removed as much as possible by utilizing the difference of the vapor pressure of the elements in the tin. It is possible to minimize the emission of alpha radiation, so that it can be prevented the occurrence of the software errors. | 03-06-2014 |
| 20150368746 | APPARATUS AND METHOD FOR SOLDER RECOVERY - The invention provides an apparatus and a method for recovering good solder for re-use from dross. Dross is introduced into a chamber ( | 12-24-2015 |
| 075610000 |
Rare earth metal, singly or in combination | 2 |
| 20120152062 | RARE EARTH RECOVERY FROM PHOSPHOR MATERIAL AND ASSOCIATED METHOD - A method for recovering at least one rare earth element from a phosphor is presented. The method includes a halogenation step (a) and a reduction step (b). The phosphor is first halogenated in a molten salt to convert at least one rare earth constituent contained therein to a soluble rare earth halide. Then, the rare earth halide in the molten salt can be reduced, to convert the rare earth halide to a rare earth element in its elemental state. A method for individually recovering multiple rare earth elements from a phosphor is also presented. | 06-21-2012 |
| 20160108498 | METHOD FOR RECOVERING RARE EARTH ELEMENT - An object of the present invention is to provide a method according to which a rare earth element can be efficiently recovered from a workpiece containing at least a rare earth element and an iron group element, and also wear and damage to the treatment container can be suppressed, allowing the container to be used repeatedly for a long period of time. The method of the present invention as a means for resolution is characterized in that in the heat treatment of an oxidation-treated workpiece in the presence of carbon, when the oxidation-treated workpiece is placed in a treatment container, a carbon substance is interposed between the oxidation-treated workpiece and the bottom surface of the container, and the heat treatment is performed in an inert gas atmosphere or in vacuum at a temperature of 1300° C. or more. | 04-21-2016 |
| 075586000 |
Concurrent production of Nonferrous metal and other desired nonmetallic product (e.g., cement, etc.) | 1 |
| 20100242682 | METHOD AND SYSTEM OF DRY PROCESSING OF CONVERTER SLAG IN COPPER SMELTING - A method for processing converter slag produced in copper smelting includes feeding the converter slag into a reducing furnace, reducing zinc and copper contained in the converter slag by heating and removing the reduced zinc through volatilization in a reducing furnace. The slag discharged from the converter is transformed into a raw material for iron making. | 09-30-2010 |
| 075624000 |
Manganese(Mn) | 1 |
| 20110265608 | PROCESS FOR PRODUCTION OF ULTRA LOW PHOSPHOROUS AND CARBON FERROMANGANESE BY USING OF FERROMANGANESE SLAG - Disclosed is a method of producing ultra low phosphorus and carbon ferromanganese having 0.1 wt % or less carbon and 0.03 wt % or less phosphorus. The method includes preparing low carbon silicomanganese having low phosphorus content, preparing molten manganese slag, subjecting the molten manganese slag and the low carbon silicomanganese having low phosphorus content to primary mixing and stirring at a ratio of 70˜72:28˜30 in a ladle, thus producing a metal melt and slag, and subjecting the metal melt separated from the above slag and the molten manganese slag identical to that used in the primary mixing and stirring to secondary mixing and stirring, thus producing slag and a metal melt including 91˜93 wt % manganese, 0.60˜0.85 wt % silicon, 0.05˜0.10 wt % carbon and 0.015˜0.02 wt % phosphorus. | 11-03-2011 |
| Entries |
| Document | Title | Date |
|---|
| 20090007729 | Method of Precious Metal Recovery - The proposed invention relates to methods of precious metal recovery and may be applied to the recovery of precious metals from various types of mineral raw source materials containing chlorides of alkali and earth metals, e.g. collective concentrate produced from clay-salt residue of potassium production, or marker clays, etc. This method includes chlorinating roasting of the collective concentrate produced during enrichment of the material with residual chlorides content of 7-13%, or natural concentrate with up to 15% chlorides content. Thereafter, the cinder is leached by an aqua-regia solution, the precious metals are recovered from the pulp via of sorption, chlorinating roasting is held at 600-700° C., the precious metals are leached from the cinder using diluted solution of aqua-regia, and then via sorption. The process is cost-efficient due to the use of chlorinating agent, reduction of the process steps number, decreasing of the roasting temperature, and the leaching by diluted acid. | 01-08-2009 |
| 20090064820 | Method for operating non-ferrous smelting plant - In the operation, a flux mainly composed of silica ore and a non-ferrous metal-ore raw-material are charged into a smelting furnace via a conveying system. | 03-12-2009 |
| 20090126531 | Method of Roasting Material Containing At Least One of V, Mo and Ni and Rotary Kiln for Roasting the Same - Provided is a roasting method capable of reducing both C and S components in minerals down to 0.5% or less, respectively, and securing a yield ratio of 90% or more for the Mo component. In a rotary kiln | 05-21-2009 |
| 20090217785 | METHOD FOR SEPARATING IMPURITIES OUT OF FEED STOCK IN COPPER MELTS - The invention relates to a method for separating impurities out of slags, dusts, minerals, preparation residues of minerals or of recyclings or remaining substances, subsequently called feed stock. In order to save energy and reduce costs, the inventive method is characterized by the combination of the following features: melting the feed stock containing the impurities; forming a copper melt; bring the feed stock into contact with the copper melt while adding reducing agents, preferably coke and/or coal; vaporizing, if required, existing volatile compounds such as metal chlorides; reducing metals of the feed stock more noble than copper in the copper melt, and; forming a slag with constituents of the feed stock to be purified that is less noble than copper. | 09-03-2009 |
| 20100011910 | METHOD OF PRODUCING A MATERIAL COMPOSITE - A material composite has at least one region of copper or a copper alloy, at least one region of a predominantly graphitic material, and at least one boundary region between them. The boundary region has one or more carbides from the group of the IV | 01-21-2010 |
| 20100107819 | Method for the recovery by melting of at last one non-ferrous metal, and product for the implementation of the method - The invention relates in particular to a method for the recovery of at least one non-ferrous metal ( | 05-06-2010 |
| 20100147112 | ELECTRODE, ELECTRICAL CONTACT AND METHOD OF MANUFACTURING THE SAME - An electrical contact comprising a matrix of an alloy of a high electro-conductive metal and a low melting point metal and particles of a refractory metal dispersed in the matrix. The electrical contact comprises the alloy containing a low melting point metal of at least one of Sn, Te and Be, and the refractory metal is Cr. The alloy comprising the low melting point metal in an amount of 0.5 to 3% by weight and the balance being Cu. | 06-17-2010 |
| 20110126673 | RHENIUM RECOVERY FROM SUPERALLOYS AND ASSOCIATED METHODS - 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. | 06-02-2011 |
| 20110146451 | CHROME-MAGNESIUM(Cr-Mg) - Technical Description | 06-23-2011 |
| 20120132035 | LITHIUM-BASED ALLOY AND METHOD OF PRODUCING THE SAME - A lithium (Li)-based alloy and a preparation method thereof are disclosed, in which the lithium metal is wrapped by a metal foil with a higher melting point, followed by subjecting to multi-stage thermal treatment to cast alloy, thereby obtaining the Li-based alloy with high purity-Li. | 05-31-2012 |
| 20120318101 | METHOD OF ALLOYING REACTIVE COMPONENTS - Metal seeds for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin films of material together. In particular, described herein are methods of forming AlCuNi SMAs by first producing high-quality seeds (ingots) of copper, aluminum, and nickel to produce for pulling single crystal shape memory alloys, in particular superelastic or hyperelastic alloys. The method is applicable to a wide range of alloys in which one or more of the components are reactive. The method is an improvement upon traditional methods such as mixing and melting pellets. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized. | 12-20-2012 |
| 20130055854 | METHOD AND SYSTEM FOR PRODUCING AN ALUMINUM-SILICON ALLOY - A method and system for producing an aluminum-silicon alloy are provided and include preheating silica to a predetermined temperature and combining aluminum with the preheated silica to melt the aluminum and produce an aluminum-silicon alloy. | 03-07-2013 |
| 20130167689 | Oxidation Method - The present invention relates to a novel process for producing metal composites by internal oxidation. | 07-04-2013 |
| 20140196572 | 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 for scavenging metal oxide from the solder and assimilating metal oxide into a liquid layer. The active additive is an organic liquid having nucleophilic and/or electrophilic groups. As an example, a layer of dimer acid maintained on a wave soldering apparatus scavenges metal oxide from the bath, and assimilates dross that may form on the surface. Scavenging metal oxide cleanses the bath and lowers viscosity of the solder, and PC boards or the like soldered on the wave have reliable solder joints. | 07-17-2014 |
| 20150128764 | SILICON PURIFICATION MOLD AND METHOD - The present invention relates to an apparatus and method for purifying materials using a fractional solidification. Devices and methods shown provide control over a temperature gradient and cooling rate during fractional solidification, which results in a material of higher purity. The apparatus and methods of the present invention can be used to make silicon material for use in solar applications such as solar cells. | 05-14-2015 |
| 20150300740 | METHOD FOR SMELTING NON-FERROUS METAL SULFIDES IN A SUSPENSION SMELTING FURNACE AND SUSPENSION SMELTING FURNACE - The invention relates to a method for smelting non-ferrous metal sulfides ( | 10-22-2015 |
