| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205574000 | Copper produced | 18 |
| 20080223728 | Ultrahigh-Purity Copper and Process for Producing the Same - Ultrahigh purity copper having a residual resistance ratio of 38,000 or greater and a purity of 8N or higher (excluding gas components of O, C, N, H, S and P), and in particular ultrahigh purity copper wherein the respective elements of O, C, N, H, S and P as gas components are 1 ppm or less. Further provided is a manufacturing method of ultrahigh purity copper wherein, upon subjecting copper to high purification with the electrolytic method, an anode and a cathode are partitioned with an anion exchange membrane, an anolyte is intermittently or continuously extracted and introduced into an active carbon treatment vessel, a chlorine-containing material is added to the active carbon treatment vessel so as to precipitate impurities as chloride, active carbon is subsequently poured in and agitated so as to adsorb the precipitated impurities, the adsorbed impurities are removed by filtration, and the obtained high purity copper electrolytic solution is intermittently or continuously introduced into the cathode side and electrolyzed. This technology enables the efficient manufacture of ultrahigh purity copper having a purity of 8N (99.999999 wt %) or higher from a copper raw material containing large amounts of impurities by performing electrolysis with a copper-containing solution, and the provision of ultrahigh purity copper obtained thereby. | 09-18-2008 |
| 20090152124 | DOUBLE CONTACT BAR INSULATOR ASSEMBLY FOR ELECTROWINNING OF A METAL AND METHODS OF USE THEREOF - In various embodiments, the present invention provides an electrolytic cell contact bar having a first pole and a pair of second poles. The second poles are opposite in charge to the first pole and each of the pair of second poles are adjacent to and parallel to the first pole. In various embodiments, the contact bar may include an electrode holder capable of holding at least one electrode. | 06-18-2009 |
| 20100089763 | Devices and methods of copper recovery - Contemplated configurations and methods allow for effective removal of copper from aqueous media by selectively concentrating copper in a first stage, wherein competing metal ions are subjected to a redox reaction to thereby increase selective concentration. Copper is then plated in a flow through electrode from a relatively concentrated copper solution that is depleted from competing non-copper metals. In preferred aspects, the first stage provides a copper-depleted effluent that includes zinc and/or manganese for further recovery. | 04-15-2010 |
| 20100163425 | Ultrahigh-Purity Copper and Process for Producing the Same - Ultrahigh purity copper having a residual resistance ratio of 38,000 or greater and a purity of 8N or higher (excluding gas components of O, C, N, H, Sand P), and in particular ultrahigh purity copper wherein the respective elements of O, C, N, H, S and P as gas components are 1 ppm or less is provided. A manufacturing method of ultrahigh purity copper is also provided wherein, upon subjecting copper to high purification with the electrolytic method, an anode and a cathode are partitioned with an anion exchange membrane, an anolyte is intermittently or continuously extracted and introduced into an active carbon treatment vessel, a chlorine-containing material is added to the active carbon treatment vessel so as to precipitate impurities as chloride, active carbon is subsequently poured in and agitated so as to adsorb the precipitated impurities, the adsorbed impurities are removed by filtration, and the obtained high purity copper electrolytic solution is intermittently or continuously introduced into the cathode side and electrolyzed. This technology enables the efficient manufacture of ultrahigh purity copper having a purity of 8N (99.999999 wt %) or higher from a copper raw material containing large amounts of impurities by performing electrolysis with a copper-containing solution, and the provision of ultrahigh purity copper obtained thereby. | 07-01-2010 |
| 20110056842 | METHOD FOR OPERATING COPPER ELECTROLYSIS CELLS - In a process for the operation of copper electrolysis cells including a plurality of anode and cathode plates arranged vertically and parallel to each other, a longitudinal electrolyte inflow and an electrolyte outflow, the electrolyte is injected via the electrolyte inflow horizontally and parallel to the electrodes in each electrode gap always at the height of the lower third of the electrodes at a speed of from 0.3 to 1.0 m/s, with the cathode plates being arranged stationarily relative to the inflow direction. As a result, an optimized flow guidance of the electrolyte with regard to the electrodes is achieved, resulting in an increase in the limiting current density. | 03-10-2011 |
| 20140231269 | EQUIPMENT AND METHOD FOR ELECTROLYTIC RECOVERY OF METAL - The invention concerns a system of gas ducts ( | 08-21-2014 |
| 20160068982 | ELECTROLYTIC CELL FOR METAL ELECTROWINNING - The invention relates to a cell for metal electrowinning equipped with a device useful for preventing the adverse effects of dendrite growth on the cathodic deposit. The cell comprises a porous conductive screen, positioned between the anode and the cathode, capable of stopping the growth of dendrites and preventing them from reaching the anode surface. | 03-10-2016 |
| 205575000 | Utilizing specified electrode other than consumable copper containing electrode | 5 |
| 20130153437 | CATHODE ASSEMBLY INCLUDING A BARRIER, SYSTEM INCLUDING THE ASSEMBLY AND METHOD FOR USING SAME - A cathode assembly, a system including the cathode assembly, and method of using the assembly and system are disclosed. The cathode assembly includes a conductive element and a barrier element proximate the conductive element. The assembly, system and method provide for improved metal powder formation. The system may be stationary or portable. | 06-20-2013 |
| 205576000 | Specified anode | 4 |
| 20090288958 | ELECTROCHEMICALLY ACTIVE COMPOSITION, METHODS OF MAKING, AND USES THEREOF - Accordingly, in various embodiments, the present invention provides methods for making electrochemically active materials. Methods include making an electrochemically active material by reacting a platinum group metal salt in a organic solvent to yield a mixture, then heating the mixture to create a metal-organic solvent complex and an acid, followed by removing at least a portion of the acid, and yielding an electrochemically active material comprising the metal-organic solvent complex. In an exemplary embodiment, the resulting electrochemically active material may be used for coating an electrode. | 11-26-2009 |
| 20160024670 | ELECTROLYTIC CELL FOR METAL ELECTROWINNING - The invention relates to a cell for metal electrowinning equipped with a device useful for preventing the adverse effects of dendrite growth on the cathodic deposit. The cell comprises a porous conductive screen, positioned between the anode and the cathode, capable of stopping the growth of dendrites and avoiding that they reach the anode surface. | 01-28-2016 |
| 205577000 | Elemental carbon containing (e.g., graphite, etc.) | 1 |
| 20140353165 | EFFECT OF OPERATING PARAMETERS ON THE PERFORMANCE OF ELECTROCHEMICAL CELL IN COPPER-CHLORINE CYCLE - The electrolysis of cuprous chloride was carried out in the electrochemical cell. The particle size, current density, cathodic current efficiency, conversion of cuprous chloride and yield of copper formed depends strongly on current flow, heat transfer and mass transfer operation. The current flow, heat transfer and mass transfer are depends on surface area ratio of anode to cathode, distance between electrodes, concentration of HCl, applied voltage, flow rate of electrolyte, CuCl concentration and reaction temperature. The electrolysis of cuprous chloride as a part of Cu—Cl thermochemical cycle for hydrogen production is experimentally demonstrated in proof-of-concept work. | 12-04-2014 |
| 205578000 | Lead containing | 1 |
| 20160017508 | METHOD FOR MANUFACTURING ELECTROLYTIC COPPER - Provided is a method for producing electrolytic copper having a low Ag content by successfully suppressing the Ag concentration in an electrolytic solution. The electrolytic copper production method involves a step in which blister copper comprising Ag is used as an anode, and electrolysis is carried out under sulfuric acid acidity while maintaining the anode electric potential at a relatively low electric potential in comparison to the electric potential of the Ag elution. | 01-21-2016 |
| 205580000 | Leaching, dissolving, or extracting prior to synthesis | 4 |
| 20090183997 | METHOD AND APPARATUS FOR ELECTROWINNING COPPER USING AN ATMOSPHERIC LEACH WITH FERROUS/FERRIC ANODE REACTION ELECTROWINNING - The present invention relates, generally, to a method and apparatus for recovering metal values from a metal-bearing materials, and more specifically, a process for recovering copper and other metals through leaching, electrowinning using the ferrous/ferric anode reaction, and the synergistic addition of ferrous iron to the leach step. | 07-23-2009 |
| 205581000 | Utilizing organic material | 1 |
| 20090101518 | PROCESS FOR RECOVERY OF COPPER FROM COPPER-BEARING MATERIAL USING PRESSURE LEACHING, DIRECT ELECTROWINNING AND SOLVENT/SOLUTION EXTRACTION - The present invention relates generally to a process for recovering copper and/or other metal values from a metal-bearing ore, concentrate, or other metal-bearing material using pressure leaching and direct electrowinning. More particularly, the present invention relates to a substantially acid-autogenous process for recovering copper from chalcopyrite-containing ore using pressure leaching and direct electrowinning in combination with a leaching, solvent/solution extraction and electrowinning operation. | 04-23-2009 |
| 205583000 | Utilizing sulfur containing material | 2 |
| 20120103827 | METHOD FOR LEACHING CHALCOPYRITE CONCENTRATION - The invention relates to a method for leaching bulk concentrate of chalcopyrite-type by means of an aqueous solution containing sulphuric acid and an oxygen feed at atmospheric pressure and at a temperature between 75° C. and the boiling point of the solution. It is typical of the method that the particle size of the concentrate to be fed into leaching is in the region of 80% below 60-100 μm and that the concentrate is leached with an aqueous solution, the acid concentration of which is regulated to be around 20-90 g/l. | 05-03-2012 |
| 20160068977 | SYSTEMS AND METHODS FOR IMPROVED METAL RECOVERY USING AMMONIA LEACHING - Systems and methods for basic leaching are provided. In various embodiments, a method is provided comprising leaching a slurry comprising a copper bearing material and an ammonia leach medium, adding copper powder to the slurry, separating the slurry into a pregnant leach solution and solids, and performing a solvent extraction on the pregnant leach solution to produce an loaded aqueous stream. | 03-10-2016 |
| 205585000 | Bath contains organic material | 1 |
| 20150292097 | EQUIPMENT FOR SEPARATING ORGANICS FROM AN ELECTROLYTIC STREAM IN ELECTROWINNING PROCESS OF SX/EW PLANTS AND PROCESS THERETO - A compact, light, and continuous-process apparatus for filtering impurities and separating organics contained in an electrolyte stream feeding an electrowinning cell, the apparatus includes an outer body having an octagonal tubular piece, a rear cover and rims or flanges, and an inner body having support housing, a common cover, at least one perforated or slotted tube and at least one high-contract surface filler. The apparatus also includes a rich electrolyte input, a rich electrolyte output, a contaminated electrolyte output, a lower flow input chamber, a mid-chamber for filtered electrolyte output, an upper chamber, and a lower distribution chamber. | 10-15-2015 |
| 205586000 | Purifying or treating electrolyte or bath prior to or after synthesis | 1 |
| 20080217185 | SYSTEM AND METHOD FOR PRODUCING COPPER POWER BY ELECTROWINNING IN A FLOW-THROUGH ELECTROWINNING CELL - This invention relates to a system and method for producing a metal powder product using conventional electrowinning chemistry (i.e., oxygen evolution at an anode) in a flow-through electrowinning cell. The present invention enables the production of high quality metal powders, including copper powder, from metal-containing solutions using conventional electrowinning processes and/or direct electrowinning. | 09-11-2008 |
