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WO/2024/079439A1 |
A method of treating zinc-containing by-product is provided. The method comprises contacting an aqueous liquid with slag to produce a treatment composition having a pH of from 8 to 11; and contacting the treatment composition with ferrou...
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WO/2024/081721A1 |
A method of extracting a metal of interest comprises dissolving an oxidizable metal compound in an electrolyte contained in an electrochemical cell; dissolving a sulfoarsenide compound comprising the metal of interest in the electrolyte;...
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WO/2024/046656A1 |
The invention relates to a process for the selective heavy metal removal from iron- and/or steelmaking flue dust, the process comprising the steps of: preparing a feedstock (FS) by blending or mixing a chloride precursor material (CPM) a...
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WO/2024/033477A1 |
The present invention relates to waste treatment and provides a process for depletion of zinc from Zn-coated Fe by subjecting the Zn-coated Fe to a leaching step in an acidic solution comprising Fe3+ to provide an acidic solution contain...
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WO/2024/032804A1 |
The present invention belongs to the technical field of solid waste resource utilization, and provides a method for extracting zinc and enriching iron in cooperation with the consumption of CO2 by means of the hot alkali dissolution of m...
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WO/2024/029129A1 |
According to the present invention, a dust D containing zinc is indirectly heated in a rotating rotary kiln 10, thereby gasifying the zinc contained in the dust; a treated gas G containing the gasified zinc is sucked by a suction tube 30...
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WO/2024/009695A1 |
The present invention provides a method for removing zinc, the method being capable of removing zinc by determining the heating temperature of a galvanized steel sheet, while taking the oxidation of lead into consideration. The present...
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WO/2024/010474A1 |
A method for the recovery of metals from metallurgical waste, especially zinc and iron from dusts is characterized in that the zinc-bearing dusts are granulated with the addition of a reducing agent (coal dust, carboniser, fly ash) in an...
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WO/2023/243337A1 |
The present invention provides: a technology for producing a metal by means of the reduction of a metal compound, while suppressing a carbon dioxide gas to be discharged into the environment as much as possible, the technology being capa...
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WO/2023/242861A1 |
The present disclosure relates to a method for manufacturing aluminium deox, aluminium powder, and zinc oxide in a single batch process. The method comprises feeding galvalume dross into induction furnace to melt the galvalume dross. The...
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WO/2023/234608A1 |
The present invention is a method for refining iron oxide which is a by-product of a zinc smelting process, the method comprising: a firing process for firing the iron oxide; a washing process for washing an iron oxide cake with a washin...
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WO/2023/234562A1 |
The present invention provides a method for removing chlorine in a process solution in zinc hydrometallurgy, the method comprising the steps of: preparing a process solution from a leaching process for leaching zinc calcine; adding the p...
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WO/2023/234623A1 |
The present disclosure relates to a method for removing halides from waelz oxide which comprises halides. According to the present method it is possible to effectively remove halides included in waelz oxide, particularly insoluble fluori...
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WO/2023/221907A1 |
Disclosed is a method for synchronously removing fluorine, chlorine and iron in a solution, comprising: continuously introducing gas containing a strong oxidizing gas into a solution containing Fe2+, F- and Cl-, at the same time adding a...
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WO/2023/209646A1 |
A method for processing a source material containing zinc ferrite that includes the following step: B. Partially reduce source material using a reducing gas containing hydrogen to form a reduced material; where step B is carried out at b...
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WO/2023/199257A1 |
The invention relates to a method for melting non-ferrous metal by means of at least one electric immersion heater, wherein: - at least one electric immersion heater is brought into contact or into close proximity with non-ferrous metal ...
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WO/2023/154976A1 |
According to the present invention there is provided a method for smelting a zinc sulfide concentrate, the method comprising the steps of: feeding the zinc sulfide concentrate to a reduction furnace at a known mass flow rate of sulfur; f...
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WO/2023/157826A1 |
A zinc recovery method comprising: an alkaline melting step 102 for bringing, at a temperature equal to or higher than the melting point of sodium hydroxide, a material (1) and the like into contact with molten sodium hydroxide which is ...
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WO/2023/126274A1 |
A method for recycling zinc (Zn), wherein the method comprises the following steps: providing a feed composition; adding the feed composition to a rotary oven; heating the added feed composition for producing a first liquid molten metal ...
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WO/2023/115152A1 |
An apparatus for changing one or more physical properties of a material is disclosed. The apparatus comprises first and second grinding surfaces movable relative to one another, the first and second grinding surfaces being spaced apart b...
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WO/2023/109224A1 |
The present invention discloses a high-value processing method for a solid waste containing zinc and iron, and belongs to the technical field of metal recycling. The method comprises the following steps: washing, filtering, drying, and g...
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WO/2023/105492A1 |
The present invention relates to a formulation of hydroxychloroquine/chloroquine in conjugation with Zinc oxide nanoparticles and methods thereof. The nanoparticles are in conjugation with at least one biodegradable polymer and are dispe...
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WO/2023/104719A1 |
The present invention relates to a method for handling particulate metal and in particular for transporting energy over great distances, comprising the following steps: 1a) Providing particulate metal to a pretreatment unit (1) at a firs...
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WO/2023/091896A1 |
A system and method for continuous production of Mg from metallothermic reduction of magnesium bearing ore from both the reactor side and condenser side of the system, using a separate collection vessel. The furnace is a heated tube thro...
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WO/2023/089234A1 |
The present invention relates to a process for recovering zinc and iron products from zinc- containing waste materials obtained from the zinc or steel industry, or both, by first treating the waste material(s) with strong acid, to conver...
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WO/2023/004476A1 |
According to the present invention there is provided a method for treating a zinc leach residue comprising the steps of: adding the zinc leach residue and a sulfide material comprising copper and flux to a furnace having a molten bath th...
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WO/2023/283685A1 |
The present disclosure generally relates to processes for recovering and separating electrode materials from alkaline batteries, such as cathode and/or anode materials. The process comprises comminuting alkaline MMD to reduce the average...
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WO/2022/262971A1 |
The invention is directed to a process and its relating plant for recycling zinc oxide residues. Thereby, zinc oxide residues are granulated to particles with a size of d80 between 0,3 and 5 mm, preferably between 0.5 and 2 mm. These par...
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WO/2022/190153A1 |
The present invention concerns a method for the treatment of jarosite and other residues (1) of the zinc and lead production industry, including the following steps: thermal treatment (10) of the residues (1), at a temperature between 50...
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WO/2022/172495A1 |
According to the present invention, dust Da containing zinc and iron is placed in a rotating cylindrical kiln base body 11 of an indirect-heating rotary kiln 10, and is subjected to a heat treatment in the kiln base body so that zinc con...
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WO/2022/156227A1 |
The present invention relates to a high-temperature-resistant liquid reflux and air outlet structure for preparing fine powder by a gas-phase method, comprising a channel shared by liquid reflux and air outlet. A thermal preservation str...
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WO/2022/140805A1 |
Provided is a process for the production of zinc as zinc oxide or zinc metal directly from sulfide ores, the process including the steps of (i) preparing zinc sulfide ore; (ii) preparing manganese ores; (iii) mixing and grinding the zinc...
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WO/2022/130462A1 |
This zinc recovery method is characterized by comprising: a dissolution step for dissolving zinc contained in a raw material by treating a zinc-containing raw material with an alkaline fluid having a temperature of at least 100 °C; and ...
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WO/2022/123444A1 |
The invention relates to a process for the treatment of photovoltaic panels at the end of their life and has the aim of recovering plastics and especially high-purity glass, to put them back on the market as secondary raw materials. The ...
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WO/2022/118927A1 |
A zinc production method, according to the present invention, further comprises chlorine concentration adjustment steps 101, 101', and 105 for using a hydroxylated alkaline aqueous solution as an extraction solvent for selectively extrac...
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WO/2022/104427A1 |
A process for recovery of one or more target metals, selected from precious metals and chalcophile metals as respectively herein defined, from materials containing precious and/or chalcophile metal/s, said process including: (i) leaching...
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WO/2022/096223A1 |
The invention relates to a method for processing hard metal, more particularly hard metal scrap, wherein: - the hard metal is alloyed with a low-melting alloying metal in a reaction chamber of a reactor (10) while heat is applied; - the ...
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WO/2022/087063A1 |
A process which improves the environmental performance of primary non-ferrous metal smelters by reducing carbon emissions, providing enhanced energy utilization, improving consumption efficiencies, and improving worker safety. The smelte...
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WO/2022/081411A1 |
The present disclosure provides a method of recovering copper, molybdenum, and a precious metal value from a metal-bearing material, the method comprising bulk flotation of the metal-bearing material to form a flotation product, wherein ...
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WO/2022/081413A1 |
The present disclosure provides a method of recovering copper, molybdenum, and a precious metal value from a metal-bearing material, the method comprising bulk flotation of the metal-bearing material to form a flotation product, wherein ...
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WO/2022/075525A1 |
A method for recovering zinc, indium and gallium from a waste IGZO target is provided. The method comprises the steps of: grinding a waste target composed of indium gallium zinc oxide, so as to generate a ground product; generating a mix...
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WO/2022/069692A1 |
The present invention discloses the use of a spinel-based recovered sorbent of formula Zn0.85Mn2.15O4 or Zn0.25Mn2.75O4, working at a temperature range between 300 °C and 500 °C, for the removal of sulphur in gasification processes suc...
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WO/2022/057882A1 |
Disclosed is a resource recycling method for a copper smelting residue, comprising the following steps: (1) mixing a copper blowing residue, a vulcanizing agent 1, a residue type modifier 1 and a reducing agent 1, smelting same to obtain...
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WO/2022/053568A1 |
The invention relates to a method for producing a valuable material product from industrial dust. The method has the steps of: i) providing the industrial dust, which has at least one valuable material and a first concentration of volati...
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WO/2022/037781A1 |
A method for separating zinc from an industry product (110) is described, the method comprising: i) providing the industry product (110) which comprises oxidized zinc (102); ii) heating the industry product (110) so that the industry pro...
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WO/2021/243477A1 |
The composition of the present application comprises: one or more surfactants and one or more adjuvant gases in the hydrometallurgical and pyrometallurgical processes in which it is used, which are added thereto as nanobubbles and microb...
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WO/2021/217220A1 |
Disclosed herein is a method for reducing a metal oxide in a metal oxide containing precursor. The method comprises providing a reaction mixture comprising the metal oxide containing precursor and an aluminium reductant; heating the reac...
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WO/2021/215486A1 |
The present invention provides a method for producing lithium hydroxide, said method enabling the production of lithium hydroxide from lithium sulfate at a relatively low cost. A method for producing lithium hydroxide from lithium sulfat...
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WO/2021/208450A1 |
A zinc recovery method and device for a blast furnace or a shaft furnace. The zinc recovery device comprises a flue gas extraction annular flue (1), a flue gas extraction pipe (2), a flue gas extraction duct (4), a heat exchanger (6), a ...
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WO/2021/190025A1 |
An ammonium complex system-based method for separating and purifying lead, zinc, cadmium, and copper, comprising the following steps: a zinc-containing raw material is leached using a leach solution to produce a leached solution; a filtr...
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