| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 423062000 | Group VB metal (V, Nb, or Ta) | 12 |
| 20120164040 | METHODS FOR THE CONCENTRATION OF VANADIUM FROM CARBONACEOUS FEEDSTOCK MATERIALS - This invention relates to a process that utilizes high-temperature oxidation with controlled stoichiometry in the concentration of vanadium from carbonaceous feedstock materials containing vanadium, such as residues, ashes and soots resulting from the combustion or gasification of petroleum vacuum residuum, petroleum coke, kerogen from oil shale, and bituminous sand, e.g., tar sand or oil sand, or extra heavy oil or other carbonaceous feedstocks that contain vanadium. A preferred embodiment uses a counter-rotating vortex reactor and a cyclonic, entrained-flow reactor to rapidly heat and oxidize feedstock at temperatures in the range of about 2100° F. to 2900° F., resulting in a vapor stream with entrained, solid materials comprising the concentrated vanadium species. The entrained, vanadium-rich product solids may be removed from the high-temperature vapor stream by a high-temperature filter assembly, with or without the aid of a high-temperature cyclone separator which removes a portion of the vanadium-rich solids upstream of the filter. The filtered vapor stream may be stored or then ducted to suitable unit operations for possible oxidation and heat recovery, followed by entailed pollution control prior to its final discharge to the atmosphere. | 06-28-2012 |
| 20120213680 | HYDROMETHANATION OF A CARBONACEOUS FEEDSTOCK WITH NICKEL RECOVERY - The present invention relates to processes for hydromethanating a nickel-containing (and optionally vanadium-containing) carbonaceous feedstock while recovering at least a portion of the nickel content (and optionally vanadium content) originally present in the carbonaceous feedstock. | 08-23-2012 |
| 20120328496 | TREATMENT OF MINERALS - A process for treating a feedstock is provided. The feedstock comprises a mineral and/or a metal oxide/silicate derived from or associated with a mineral. The process comprises treating the feedstock by reacting, in a reaction step, the mineral and/or the metal oxide/silicate derived from or associated with a mineral, with an ammonium acid fluoride having the generic formula NH | 12-27-2012 |
| 20150139873 | METHOD FOR THE EXTRACTION OF VANADIUMPENTOXIDE, V2O5, FROM A SOURCE CONTAINING VANADIUM - The invention relates to a method for the extraction of vanadium from various sources in the form of vanadiumpentoxide, V | 05-21-2015 |
| 423063000 | Ion exchanging or liquid-liquid extracting | 5 |
| 20110262323 | HYDROMETHANATION OF A CARBONACEOUS FEEDSTOCK WITH VANADIUM RECOVERY - The present invention relates to processes and apparatuses for hydromethanating a vanadium-containing carbonaceous feedstock while recovering at least a portion of the vanadium content originally present in the carbonaceous feedstock. | 10-27-2011 |
| 20130195738 | PROCESS FOR THE RECOVERY OF TITANIUM DIOXIDE AND VALUE METALS AND SYSTEM FOR SAME - A process and system for recovering titanium dioxide and other value metals from a titanium bearing solid is disclosed. The process includes leaching the solid in hydrochloric acid to produce a leachate comprising undissolved solids and a leach solution comprising the titanium dioxide and the value metals, wherein the hydrochloric acid concentration is maintained above a value required to maintain the titanium dioxide and the value metals dissolved in the leach solution at atmospheric pressure. The leachate is separated into the leach solution and the undissolved solids. The concentration of hydrochloric acid concentration in the leach solution is reduced to recover titanium dioxide by hydrolysis and precipitation to produce a titanium dioxide rich slurry. In a preferred embodiment, HCl is recovered with a matrix solution. | 08-01-2013 |
| 20140079609 | VANADIUM OXIDE PURIFICATION PROCESS - Process for purifying vanadium oxide that includes cationic exchange resin and solvent extraction. | 03-20-2014 |
| 20140134083 | METHOD FOR EXTRACTING VANADIUM FROM SHALE - A method for extracting vanadium from shale, the method including: a) grinding the shale into fine powders, mixing the fine powders with an additive in a mass ratio of 1:0.04-0.12 to yield a mixture, heating the mixture to a temperature of between 850 and 950° C. at a heating rate of 5-9° C./min, and baking the mixture for between 30 and 90 min; b) immersing the product in water and acid respectively to yield a first solution and a second solution, combining the two solutions, and performing ion exchange adsorption on the combined solution using a styrene-divinylbenzene based macroporous anion-exchange resin; and c) performing desorption, purification, and precipitation to yield poly ammonium vanadate, and calcining the poly ammonium vanadate at a temperature of between 450 and 530° C. for between 20 and 50 min to yield V | 05-15-2014 |
| 20160138131 | METHOD OF SEPARATING AND RECOVERING VALUABLE METAL FROM REMANUFACTURING SOLUTION OF SPENT DESULFURIZATION CATALYST CONTAINING VANADIUM - The disclosure describes a method of separating and recovering valuable metals from remanufacturing solution of a spent desulfurization catalyst containing vanadium, and more particularly, to a method of separating and recovering a valuable metal from remanufacturing solution of a spent desulfurization catalyst containing vanadium, which includes: adding organic acid to a spent hydrodesulfurization catalyst after collecting the spent hydrodesulfurization catalyst in order to prepare the remanufacturing solution of the spent hydrodesulfurization catalyst; adding an extracting agent and a diluent to the remanufacturing solution to extract molybdenum and extracting vanadium from an extracted filtrate to obtain an organic phase; and adding a stripping agent to the organic phase to strip and recover vanadium. | 05-19-2016 |
| 423065000 | Forming insoluble substance in liquid | 1 |
| 423067000 | Ammoniating or sulfating | 1 |
| 20140248199 | RECOVERY OF VANADIUM FROM PETROLEUM COKE SLURRY CONTAINING SOLUBILIZED BASE METALS - A method for recovering vanadium from a spent slurry catalyst for hydrocarbon oil hydroprocessing is disclosed. In one embodiment after de-oiling, the spent catalyst is treated with ammonia and air, forming a leach slurry. The leach slurry is subsequently treated with a flocculant. After solid-liquid separation to recover the solid residue containing coke and ammonium metavanadate, the solid residue is washed with an ammonium sulfate solution and leached with hot water. After solid-liquid separation to recover a solution containing ammonium metavanadate, the ammonium metavanadate is crystallized and purified from the leach solution. | 09-04-2014 |
| 423068000 | Leaching, washing, or dissolving | 2 |
| 20120034141 | FLUORINE BASED VANADIUM BORIDE NANOPARTICLE SYNTHESIS - The present disclosure generally relates to Vanadium Boride nanoparticle synthesis. In some examples, a method is described that includes fluorine based Vanadium Boride nanoparticle synthesis. In some examples, the method includes providing Vanadium Boride battery waste products, treating the battery waste products to treat precursors for fluoridation, heating the precursors for fluoridation to form VF | 02-09-2012 |
| 20130336858 | TANTALUM RECOVERY METHOD - There is provided a technology for decreasing copper and tungsten contained in tantalum-containing wastes, and recovering a high-purity tantalum. The present invention is a tantalum recovery method for recovering tantalum from a tantalum-containing waste, the method comprising subjecting the tantalum-containing waste to an acid treatment in an oxidizing atmosphere, thereafter to a roasting treatment and an alkali treatment, and further comprising carrying out a magnetic separation treatment before the acid treatment to thereby separate a tantalum-containing material in the tantalum-containing waste. This is particularly a suitable recovery method for recovering tantalum from wastes containing a relatively large amount of copper and tungsten such as discarded substrates such as printed wiring boards. | 12-19-2013 |
