| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205587000 | Ion, cobalt, or nickel produced | 8 |
| 20110253552 | Method Of Electrochemical Dissolution Of Ruthenium-Cobalt-Based Alloy - A method of electrochemical dissolution of ruthenium-cobalt (Ru—Co)-based alloy is disclosed, in which a Ru—Co-based alloy bulk is subjected into an electrolyte solution comprising about 50 wt. % to 75 wt. % of sulfuric acid, thereby electrolyzing the Ru—Co-based alloy bulk and forming a product solution comprising Ru and Co ions in the electrolyte solution. | 10-20-2011 |
| 205589000 | Leaching, dissolving, or extracting prior to synthesis | 5 |
| 20100089764 | METHOD FOR PRODUCTION OF METALLIC COBALT FROM THE NICKEL SOLVENT EXTRACTION RAFFINATE - ‘Method for production of metallic cobalt from the raffinate from solvent extraction of nickel’. Said method comprises the following stages: (A) obtaining the raffinate from solvent extraction of nickel, for production of cobalt; (B) adding a sulfide precipitation agent to said raffinate, for cobalt sulfide and zinc sulfide precipitation; (C) removing all ammonia from the sulfidized pulp (solids and liquid); (D) subjecting the filtered solid—cobalt sulfide (and impurities)—to atmospHeric leaching; (E) reducing to a minimum the zinc concentration in the cobalt round, by means of solvent extraction with D2EPHA extractant diluted in Escaid 110 solvent or equivalent solvent, in any solvent extraction system comprising the required number of extraction, scrubbing, and stripping stages, with resident time of not less than 1 minute at each of the stages used; (F) performing nickel removal by ion exchange, for nickel purification; (G) adding sodium carbonate to the solution, for cobalt carbonate precipitation; (H) leaching the produced cobalt carbonate in a system that utilizes an acid, preferably sulfuric acid, and more preferably, the anolyte from cobalt electrolysis; (I) performing cobalt electrowinning so as to recover the cobalt from the solution in its metallic form; and (J) allowing the metallic cobalt to settle on insoluble stainless steel plates during the time required for production of the cobalt cathodes. | 04-15-2010 |
| 20130206607 | Lithium Extraction Method, and Metal Recovery Method - To provided a method for recovering lithium from a lithium ion battery using comparatively simple equipment and without using a cumbersome process. A lithium extraction method for extracting lithium from the positive electrode material of a lithium ion battery containing lithium and cobalt, the method being characterized in that the positive electrode material is immersed into an acidic solution at 50° C. or less, lithium ions are selectively leached into the acidic solution while inhibiting the leaching of cobalt ions, and the leaching of lithium ions is stopped while the amount of lithium contained in the positive electrode material is sufficient. | 08-15-2013 |
| 20140262815 | SYSTEMS AND METHODS FOR COBALT RECOVERY - Various embodiments provide a method comprising producing a cobalt hydroxide bearing material, leaching the cobalt hydroxide hearing material to form a slurry, filtering the slurry to yield solids and a cobalt bearing liquid phase, performing a solution extraction of the cobalt bearing liquid phase to yield a purified cobalt bearing liquid phase, conditioning a first portion of the purified cobalt bearing liquid phase to yield a conditioned cobalt bearing solution and, electrowinning the conditioned cobalt bearing solution to yield cobalt metal. | 09-18-2014 |
| 20140262816 | SYSTEMS AND METHODS FOR COBALT RECOVERY - Various embodiments provide a method comprising leaching a cobalt bearing material to form a slurry, filtering the slurry to yield solids and a cobalt bearing liquid phase, performing a solution extraction of the cobalt bearing liquid phase to yield a purified cobalt bearing liquid phase, precipitating cobalt gypsum by adding lime to a first portion of the purified cobalt bearing liquid phase, and recycling the cobalt gypsum to the leaching. | 09-18-2014 |
| 20140262817 | SYSTEMS AND METHODS FOR SELECTIVE PROXIMITY COBALT RECOVERY - Various embodiments provide a method comprising leaching a cobalt bearing material to form a slurry, filtering the slurry to yield solids and a cobalt bearing liquid phase, and forwarding the solids to a second leaching operation. | 09-18-2014 |
| 205594000 | Nickel | 2 |
| 20140110270 | ELECTRICAL ANODE REDUCTION OF SOLID OXIDE FUEL CELL - A solid oxide fuel cell is anode reduced without the use of a reducing gas by applying a voltage to the cell when the temperature is elevated to a target temperature. | 04-24-2014 |
| 205595000 | Bath contains organic material | 1 |
| 20080308429 | METHOD FOR IMPROVING CATHODE MORPHOLOGY - An acidic aqueous electrolyte solution for production of a nickel cathode is provided which includes nickel ions, and 2,5-dimethyl-3-hexyne-2,5-diol. The 2,5-dimethyl-3-hexyne-2,5-diol may be present in the acidic aqueous electrolyte solution in an amount ranging from about 5 ppm to about 300 ppm. Also provided is a process for electrowinning or electrorefining a nickel cathode which includes providing an acidic aqueous electrolyte solution including nickel ions, and 2,5-dimethyl-3-hexyne-2,5-diol; and electrolytically depositing nickel to form a nickel cathode. Addition of 2,5-dimethyl-3-hexyne-2,5-diol results in a reduction of striations and other defects which may occur on the surface of cathodes made by electrowinning or electrorefining. | 12-18-2008 |
