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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/2022/183256A1 |
A process and a plant for recovering valuable material in the form of gold and/or copper from sulphide ore systems that includes an Accurate Rock Breakage System ("ARBS") circuit.
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WO/2022/185974A1 |
Provided is a method for recovering manganese from a waste dry battery, whereby it becomes possible to recover a high-purity manganese-containing solution in a simple manner. The present invention includes the following steps in this ord...
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WO/2022/184756A1 |
The present invention relates to a method for recycling waste material generated in a stainless steelmaking process in a stainless steel mill. Most of the waste materials are already recycled such the steel slag materials and the filter ...
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WO/2022/181742A1 |
When copper concentrate is to be produced through ore floatation for separating copper minerals and arsenic minerals by using an oxidizer and a sulfur oxoacid, the present invention reduces arsenic in the copper concentrate by using a si...
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WO/2022/176709A1 |
The present invention has an acid leaching step S4 for adding acid S to battery slag M extracted from a lithium ion cell to form a leachate E, a fourth addition step S11 for adding sodium carbonate A4 to a third treated filtrate F3 that ...
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WO/2022/177081A1 |
A sintering apparatus is disclosed. The sintering apparatus according to an embodiment of the present invention may comprise: a case having an inner space and provided at the front thereof with a door which opens/closes the inner space; ...
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WO/2022/178235A1 |
A method of delamination of a printed circuit board includes comminuting (202) the printed circuit board, and soaking (204) the comminuted PCB in a solvent system comprising at least two solvents. Once soaking (204) has been completed th...
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WO/2022/167970A1 |
A method of extracting lithium from a raw material mixture, comprising the steps of introducing a raw material mixture into a rotary kiln, subjecting the raw material mixture to a thermal treatment in the rotary kiln for melting the raw ...
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WO/2022/168805A1 |
The present invention has: a heating step (S3) for heating a battery slag (M1) having a positive-electrode active material that includes one or both of Ni and Co and a negative-electrode active material that includes graphite, and thereb...
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WO/2022/165588A1 |
A method and system for processing aluminum alloy rims are provided, involving providing a feed of a plurality of aluminum alloy rims of different compositions, each aluminum alloy rim in the plurality of aluminum alloy rims having a ser...
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WO/2022/166925A1 |
The present invention belongs to the technical field of molybdenum smelting, and disclosed is a molybdenum oxide roasting system comprising a first rotary kiln, a first heat exchanger, a hot air distributor, a second rotary kiln, a secon...
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WO/2022/168110A1 |
The present invention provides a process for recovery of base metal of steel from mill scale waste. Said process coverts the mill scale waste into base metal of steel alloys along with the respective parent elements such as Fe, Ni, Cr, M...
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WO/2022/164990A1 |
An iron-ore based composite and method of preparing the composite by: - contacting a plurality of iron ore particles with at least one water-soluble polymer to form an agglomeration; and - forming a composite said iron ore particles comp...
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WO/2022/164878A1 |
Methods of reducing copper metal content of shredded scrap steel are provided. The method includes continuously separating a first scrap steel fraction from an amount of scrap steel concurrently with separating a second fraction from the...
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WO/2022/165151A1 |
A tribo-electrostatic separation process for beneficiation of bauxite minerals is disclosed. The process may include one or more steps of grinding, drying, de-agglomeration, air classification and electrostatic separation.
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WO/2022/160002A1 |
The present disclosure broadly relates to processes for preparing iron and ferro-alloys using coffee as a source of carbon.
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WO/2022/163179A1 |
Provided is a method with which it is possible to inexpensively recover a valuable metal.　The present invention is a method for recovering a valuable metal, the method including the following steps: a readying step for readying a charg...
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WO/2022/158441A1 |
Provided is a waste lithium-ion battery treatment method capable of obtaining battery powder without the need to treat fluorine generated by pyrolysis. The present invention is characterized in that a waste lithium-ion battery is heat-tr...
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WO/2022/159374A1 |
Methods for processing machining chips comprising aluminum-lithium alloys are provided. The method comprises cleaning machining chips comprising an aluminum-lithium alloy to remove at least a portion of processing fluid from the machinin...
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WO/2022/150880A1 |
The present disclosure broadly relates to a process for recovering cobalt from lithium-ion batteries using thermal techniques.
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WO/2022/153342A1 |
Solid agglomerated product, such as a briquette (B), which can be used as charge material for an electric arc furnace, comprising at least one by-product fraction (M; M1, M2, M3) deriving from a steel plant and comprising a first part co...
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WO/2022/137585A1 |
A method for recovering lead from copper smelting dust according to the present invention comprises: an alkali leaching step for leaching, with an alkali solution, lead which is contained in copper smelting dust; a step for solid-liquid ...
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WO/2022/138239A1 |
Provided is a method with which it is possible, when manufacturing an ore slurry containing a metal ore such as nickel oxide ore as a raw material, to obtain an ore slurry in which the solid content and the slurry density are raised with...
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WO/2022/133599A1 |
Method and apparatus are provided to select target metal particles from aggregate ore. A feed stream of aggregate is directed along a path and a higher density portion is segregated therefrom. Detectors are arranged in-line and along the...
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WO/2022/134322A1 |
A layered compound heat supply-based heat-balanced sintering method, which comprises: 1) performing material preparation on an iron-containing raw material, a flux, a solid fuel, and water, and performing material distribution of a prepa...
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WO/2022/127117A1 |
Disclosed in the present invention is a low-cost method for cleanly treating a positive electrode material of a waste lithium ion battery. The method comprises: performing high-temperature reduction on the pre-treated positive electrode ...
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WO/2022/126217A2 |
This invention refers to a technically and economically viable process for recovery of relevant metallic and non-metallic contents from mining residues, particularly the bauxite residue, using it in its integral form. Such a process rout...
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WO/2022/123438A1 |
The present invention discloses a process for recovering precious metals from electronic waste comprising the steps of cutting the terminals from the electronic waste involving metallic and non-metallic fractions using a mechanical proce...
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WO/2022/125872A1 |
The present disclosure is related to the recovery of metal(s) using molten salt and related systems.
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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/2022/116859A1 |
The present invention relates to a method for separating and extracting rare earth and regenerated rare earth polishing powder from waste rare earth polishing powder. The method is characterized by comprising: first using a primary acid ...
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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/2022/116870A1 |
The present invention relates to a method for recovering rare earths from waste cerium-based rare-earth polishing powder by two-step acid leaching stepwise separation, characterized by: first using primary acid leaching to treat a waste ...
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WO/2022/113669A1 |
A method for producing an alkali metal salt of tungstic acid according to the present invention comprises a process wherein a molten carbonate, which contains metal ions that serve as an oxidant with respect to an alkali metal carbonate ...
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WO/2022/115512A1 |
A method of processing red mud comprising: heating red mud to a predetermined temperature; grinding the red mud to a predetermined particle size; and physically extracting iron components from the red mud; physically extracting aluminum ...
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WO/2022/106660A1 |
A process for extracting fluoride from a solution of high pH comprising more than 0.1 mol of alkaline hydroxide and/or alcoholate per liter dissolved in a polar solvent is described. The polar solvent is chosen from water, lower alcohols...
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WO/2022/101930A1 |
A process (100) for treating spent lithium ion batteries (102) to recover metals is disclosed. The process includes discharging (104) the spent lithium ion batteries (106). The discharged lithium ion batteries are shredded 106) and roast...
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WO/2022/095263A1 |
A red mud comprehensive utilization method and device. The red mud comprehensive utilization device comprises a red mud pretreatment device (2), a red mud drying bin (3), a feeding device (4), an atmospheric micro-plasma discharge device...
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WO/2022/088396A1 |
A method for extracting iron from high-phosphorus oolitic iron ore by suspension roasting and removing phosphorus by acid leaching. A fluidized material is treated by high-temperature oxidizing roasting and a large number of cracks thus ...
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WO/2022/088641A1 |
The present invention relates to the technical field of resource recovery, and discloses a non-full extraction battery recovery method, comprising the following steps: introducing pre-treatment gas into a device containing waste battery ...
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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/2022/078667A1 |
The invention relates to a method for recovering noble metal from a heterogeneous catalytic converter comprising a solid supporting material and palladium, platinum or rhodium, present at least partially in elemental form, said method co...
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WO/2022/082042A1 |
In described embodiments, a process for recovery of a metal from a grounded ore comprises leaching the grounded ore with a leaching reagent, an oxidant and an oxygen vector. In particular, a process for recovery of gold from a grounded g...
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WO/2022/077062A1 |
A process for thermally treating a mineral feedstock, the process comprising partially combusting fuel to generate hot syngas; preheating the mineral feedstock utilising the hot syngas generated by partially combusting fuel; thermally tr...
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WO/2022/071274A1 |
This method for eluting a valuable metal from a glass-containing electrode containing glass and a valuable metal insoluble in a hydrofluoric acid involves: immersing an object including the glass-containing electrode in a hydrofluoric ac...
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WO/2022/071369A1 |
Provided are: a method for manufacturing a sintered ore with which it is possible to promote nucleation in a blended sintering raw material in which a smaller amount of easily aggregating fine ore is blended, and to effectively obtain a ...
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WO/2022/071297A1 |
Provided is a method for eluting valuable metals from a glass-containing electrode that contains valuable metals and glass, wherein the method includes: a step for pulverizing an object that contains a glass-containing electrode; and a s...
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WO/2022/063955A1 |
The invention relates to a process of heap leaching metal from a metal bearing ore comprising the steps: a) agglomerating the ore with an agglomeration agent to form an agglomerated ore, b) forming the agglomerated ore into a heap; and c...
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WO/2022/061398A1 |
A method for producing direct reduced iron ("DRI") from iron ore and biomass is disclosed. The method includes heating a batch of iron ore and biomass in each oven chamber of a non-recovery batch oven by a combination (i) the thermal mas...
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