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WO/2021/119728A1 |
A method for the recovery of vanadium from a vanadium containing feed stream, the method comprises: subjecting the vanadium containing feed stream to an acid leach step to form a slurry including a pregnant leach solution that comprises ...
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WO/2021/105215A1 |
The present invention relates to a method for recovery of metals from exhausted acid solutions, which acid solutions contain metal oxides comprising iron, chrome and nickel, comprising the steps of adjusting the solution, by adding preci...
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WO/2021/088277A1 |
The present invention relates to the technical field of flue gas denitration catalysts. Disclosed are a hydrogenated TiO2 denitration catalyst, a preparation method therefor, and application thereof. The hydrogenated TiO2 denitration cat...
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WO/2021/091049A1 |
Provided is a method for refining tantalum by using metallothermic reduction, the method incrementally injecting a reducing agent so as to minimize the amount of unreacted materials, thereby being capable of refining tantalum to have hig...
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WO/2021/091822A1 |
An integrated refinery process for the disposal of metal-containing spent coked catalyst from hydrotreating and/or hydrocracking unit operations includes introducing the spent coked catalyst into a membrane wall gasification reactor in t...
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WO/2021/081590A1 |
A vanadium recovery process (10), the process comprising: (i) passing an ore or concentrate (12) containing vanadium, titanium and iron to a reduction step (18) forming a reduced ore or concentrate; (ii) passing the reduced ore or concen...
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WO/2021/072534A1 |
A process for the recovery of titanium dioxide from various feedstocks comprising titanium, vanadium and iron compounds is disclosed. The process comprises: leaching the feed material with a first HCl solution (e.g. 20% by weight or more...
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WO/2021/056110A1 |
A process for the recovery of a vanadium oxide from iron-bearing chloride-based processing liquors is disclosed. The process comprises: heating the chloride leach solution to precipitate a portion of both vanadium and iron as oxides in s...
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WO/2021/047707A1 |
The invention relates to a method and a device for thermochemically producing titanium. The method comprises at least the following method steps: providing gaseous titanium tetrachloride, involving a) providing a starting material having...
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WO/2021/044200A1 |
Method for recovering Cr from a bath for pickling metallic materials (1), the bath (1) being an aqueous solution containing at least one sulphate and Cr from the pickled metal, the method comprising the steps of: - forming an aqueous two...
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WO/2021/045174A1 |
Provided is a method for producing low-carbon ferrochromium, whereby blowing up of molten raw material can be suppressed. A method for producing low-carbon ferrochromium, the method comprising tapping a molten raw material (12) obtained ...
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WO/2021/036092A1 |
Disclosed are an energy-saving-type system and method for extracting titanium. The system comprises a raw material pre-drying kiln, a preheating kiln, a reduction rotating kiln, a cooling rotating kiln, a ball mill, a magnetic separator,...
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WO/2021/028769A1 |
The present invention discloses a process for extracting titanium dioxide nanomaterials from natural ilmenite at moderate conditions. The process includes pre-treating the ilmenite to form ilmenite particles. The process further includes...
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WO/2021/019983A1 |
The purpose of the present invention is to react radioactive zirconium at a high reaction rate to synthesize a zirconium complex even using low-concentration DOTA or NOTA. A mixed solution, obtained by finally mixing zirconium dissolved ...
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WO/2021/019564A1 |
The present invention relates to an energy efficient system and method for oxidative roasting of waste catalysts bearing precious metals like molybdenum, vanadium, tungsten involving a removal of hydrocarbons, coke and sulfur, thereby ge...
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WO/2021/014095A1 |
The present invention relates to a method for extracting a refractory metal selected from Nb, Ta, Mo, W and V, from a solid material comprising the refractory metal in an oxidised form, the method using a layered double hydroxide, and th...
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WO/2021/005526A1 |
An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover catalyst metals used in the petroleum ...
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WO/2021/002332A1 |
Provided is a method for removing iron, silica, and other impurities from a titanium-containing iron ore or an analogue thereof by an industrially advantageous method to produce a high-quality titanium concentrate. In the present inven...
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WO/2020/263517A1 |
A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, a...
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WO/2020/259500A1 |
The present invention relates to the technical field of vanadium hydrometallurgy, and specifically relates to a method for clean vanadium extraction by carbonation leaching of vanadium slag. The technical problem to be solved by the pres...
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WO/2020/250989A1 |
This production method comprises: an alkali extraction step (step 12) for obtaining an alkaline leachate by adding an alkali and water or an alkaline solution to raw material ash, which contains ammonium sulfate, sulfuric acid, vanadium,...
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WO/2020/237312A1 |
The present invention relates to a method for the extraction and recovery of titanium products from a feedstock comprising titanomagnetite species, the method comprising the steps of: i. subjecting the feedstock to a primary leach step c...
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WO/2020/228749A1 |
A method for extracting vanadium by direct leaching of sodium-containing vanadium slag produced from molten iron, belonging to the field of ferrous metallurgy and vanadium-titanium chemical engineering. Said method comprises the steps of...
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WO/2020/228750A1 |
A method for producing calcium-containing vanadium slag by adding lime to converter molten iron and a leaching method therefor, comprising: adding molten iron into a converter, adding a coolant and lime, and performing blowing using top-...
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WO/2020/222995A1 |
A Ti-Zr alloy in powder form is described. Sintered pellets containing the Ti-Zr alloy powder of the present invention, as well as capacitor anodes, are further described.
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WO/2020/217890A1 |
In the present invention, an AC electric furnace equipped with three electrodes is charged with charge material containing a metallic raw material and an unreduced slag, the metallic raw material containing at least one of a ferrosilicon...
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WO/2020/213393A1 |
According to the present invention, a charge containing: ferrochromium and/or ferrosilicon alloy iron containing metallic Si; and unreduced slag containing Cr oxide generated during oxidative refining is charged into an electric furnace,...
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WO/2020/197009A1 |
The present invention relates to a system for extracting tungsten concentrate on the basis of a continuous process method, the system comprising: a storage means which is equipped with a storage bin (10) and a cushion bin (15) for storag...
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WO/2020/191504A1 |
Pyro-hydrometallurgical methods are described to economically and environmentally recover a target metal from iron slag or steel slag. For instance, the method can enable subjecting an iron or steel slag feed to acid-baking with an acid ...
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WO/2020/188379A1 |
A process (10, 200) for recovery of chromite fines from a slurry includes feeding a feed slurry (68) comprising chromite fines to a wet spiral concentrator stage (14) comprising a plurality of wet spiral separators or wet spiral concentr...
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WO/2020/174907A1 |
A tungsten recovery method characterized by inducing the leaching of tungsten while suppressing the leaching of silicon from a tungsten raw material containing tungsten oxide and silicon by using a weak alkali compound, wherein the major...
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WO/2020/174976A1 |
A method for producing titanium powder according to the present invention involves a process of reducing titanium tetrachloride in a metallic reduction reactor, the method comprising: a gas collection step for collecting a powder-contain...
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WO/2020/151034A1 |
Disclosed is a method for the separation and enrichment of valuable components from a titanium-containing iron mineral, the method involving: blending a titanium-containing iron mineral with a ferrosilicon alloy powder as a reducing agen...
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WO/2020/153779A1 |
The present invention provides a system for leaching valuable metals from a waste de-NOx catalyst through alkali fusion. The system comprises: a supply part including a plurality of hopper tanks for supplying a fixed quantity of waste de...
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WO/2020/138083A1 |
Provided is a method for producing an electrolyte solution for redox flow batteries using incineration ash as a raw material, whereby it becomes possible to collect high-purity vanadium easily and with high efficiency to produce an elect...
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WO/2020/131276A1 |
A method for manufacturing metal components [36] includes the steps of providing a waste feedstock [10] having a selected chemical composition; producing an additive manufacturing (AM) grade alloy powder [12] from the waste feedstock [10...
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WO/2020/120034A1 |
A system (100) for the recovery of titanium, titanium alloys, zirconium and zirconium alloys is disclosed; wherein such a system is fed with a mixture of chips (H) comprising titanium chips, titanium alloy chips, zirconium chips and zirc...
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WO/2020/122740A1 |
The invention relates to processes for the extraction of products from titanium-bearing materials or a composition produced in a process for the production of titanium dioxide, and more particularly, although not exclusively, extracting ...
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WO/2020/117098A1 |
What is proposed is a method for producing titanium and silicon powders by aluminothermic reduction thereof from liquid tetrachlorides at low temperatures and a pressure of 1.0 to 1,05 atm, whereby a suitable tetrachloride is fed on the ...
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WO/2020/110440A1 |
Provided is a method for producing titanium sponge, the method being capable of producing a titanium sponge lump that has a large volume for the lump even at the upper end side, i.e., that has a shape approximating a column shape. The ti...
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WO/2020/108188A1 |
Disclosed are an apparatus and a method for recovering variable valence metals from hazardous solid wastes by low-temperature reductive chlorination. The apparatus comprises a raw material comminuting machine (1), a material feeding mach...
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WO/2020/103642A1 |
A device and method for treating heavy metal hazardous waste by means of vacuum chlorination roasting. The method comprises: drying, grinding and sieving heavy metal hazardous solid waste, adding a chlorinating agent or a chlorinating ag...
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WO/2020/093096A1 |
A method for the preparation of titanium dioxide, the method comprising the steps of subjecting a titanium containing leach residue to a concentrated sulfuric acid digest step; and in turn subjecting that residue to a leach in dilute sul...
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WO/2020/059090A1 |
In order to manufacture a titanium alloy ingot having a more correct and uniform chemical composition, the method of the present invention includes a titanium-containing raw material supply step for supplying a raw material 50 to a heart...
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WO/2020/044841A1 |
A method for producing metal titanium by carrying out electrolysis in a molten salt bath using a positive electrode and a negative electrode, the method comprising a titanium deposition step of depositing metal titanium on the negative e...
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WO/2020/013678A1 |
The invention relates to non-ferrous metallurgy and concerns a device for chlorinating titanium-containing material in a solution of chloride salts. The technical effect of the invention is an increase in the service life of the device a...
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WO/2020/010745A1 |
A solar cell recycling method, comprising: separating an organic film layer from a solar cell, and thereby forming a de-encapsulated solar cell, the de-encapsulated solar cell comprising a stainless steel substrate and an active material...
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WO/2019/235098A1 |
An apparatus for producing metal titanium is provided with a reduction device (1, 2, 3, 4, 5) for carrying out a reduction treatment of titanium tetrachloride (X2) in the presence of bismuth (X1) and magnesium (X3) to produce a liquid al...
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WO/2019/215563A1 |
A method and plant for molybdenum recovery from a low-grade crude ore by low-temperature chlorination, where the molybdenum-bearing fine ore is chlorinated with gaseous chlorine at a temperature of 220–250°C to form a volatile chlorid...
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WO/2019/210810A1 |
Disclosed is a method for clean metallurgy of molybdenum, comprising the steps of: 1) leaching a calcified molybdenum calcine, which is obtained by roasting molybdenite with the addition of calcium, by using an inorganic acid, to obtain ...
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