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WO/2021/193096A1 |
Provided is an alloy treatment method comprising separating copper and zinc from an alloy containing nickel and/or cobalt and also containing copper and zinc to obtain nickel and/or cobalt selectively. An alloy treatment method is prov...
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WO/2021/190026A1 |
Disclosed is a system for capturing a semi-volatile heavy metal in zinc-containing solid waste by means of high-temperature separation in cooperation with ammonium complexing. The system comprises: a pre-processing system, which comprise...
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WO/2021/193095A1 |
The present invention provides a method for treating an alloy, wherein nickel and/or cobalt is obtained by separating copper and zinc from an alloy that contains copper, zinc, and nickel and/or cobalt. The present invention is a method...
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WO/2021/177843A1 |
The present invention relates to a new hydrometallurgical method for simultaneously extracting zinc, lead, silver, iron and calcium from electric arc furnace dust (hazardous waste) produced by the steelmaking industry (steelworks), in th...
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WO/2021/170181A1 |
The present invention relates to a sustainable method for recycling smelting works dusts and sludges to produce iron-containing, heavy-metal-depleted reclaimed materials and recovering lead and zinc by: providing a first starting materia...
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WO/2021/166755A1 |
Provided is a method for treating an alloy by which nickel and/or cobalt can be selectively isolated from an alloy that contains copper as well as nickel and/or cobalt, in a waste lithium ion battery or the like. The present invention ...
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WO/2021/147803A1 |
A method for removing nickel, cobalt and germanium in a zinc sulfate solution by means of continuous deep purification. A continuous purification device for removing nickel, cobalt and germanium by means of two-stage purification is comp...
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WO/2021/147816A1 |
A method for purification of an aqueous zinc sulfate solution. Copper and cadmium are removed from a neutral leaching solution by using a zinc powder, a zinc powder and a copper-antimony activator are added at a temperature of 80-95°C f...
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WO/2021/129205A1 |
A method for the coordinated treatment of slag from the pyrolysis of and smoke from smelting a scrap circuit board, which belongs to the field of the comprehensive recovery and use of valuable elements in typical ash from the fire treatm...
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WO/2021/094761A1 |
A method of treating particulate by-product of ferrous metal processing, the method comprising exposing said particulate by-product to ultrasound, said particulate by- product being located in a fluid. An apparatus for treating said part...
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WO/2021/074522A1 |
The invention relates to a method for selective leaching of metal zinc, comprising the following consecutive steps: a) providing a mixture of solid particles comprising metal zinc and metal copper in alloy form, b) immersing the mixture ...
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WO/2021/028694A1 |
A process for recovering a metal in the form of a metal halide from a metal-containing source is described, the process comprising the steps of:- (i) forming a solid metal halide containing product by contacting the metal-containing sour...
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WO/2021/027634A1 |
The present invention relates to the technical field of metallurgical solid waste treatment, and relates to a treatment process of zinc-containing dust sludge solid waste. The treatment process of the zinc-containing dust sludge solid wa...
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WO/2021/024935A1 |
Provided is a detoxification facility for detoxifying hydrogen sulfide gas, wherein gas leakage from the facility to the outside is inhibited with greater accuracy. The present invention is a facility (detoxification facility) 1 for de...
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WO/2020/245619A1 |
The object of the invention is the process of copper and zinc separation from industrial electrolytes of very complex composition, including pregnant leach solutions (PLS) which are the products of the ores, flue dusts and solid flotatio...
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WO/2020/218237A1 |
This dross generation suppression method involves: setting an environmental atmosphere, in which a metal-containing object is placed, to a condition of having a water content less than that of the air environment of the periphery of the ...
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WO/2020/181607A1 |
A method for extracting ions from an ore solution, comprising the following steps: (1) after a P204 organic phase is subject to soda soap treatment, adding nickel sulfate therein for a nickel soap reaction, till sodium ions in the organi...
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WO/2020/149777A1 |
A method for treating ferric-iron based material comprising at least zinc and sulphur comprises smelting and heating (S10) of the ferric-iron based material and added flux forming a liquid slag. The flux comprises a refractory material a...
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WO/2020/118455A1 |
It is disclosed a chemical process for recovery of silver, copper, lead, cadmium, zinc and iron from a zinc and iron bearing feed material including electric arc furnace dust and spent pickle liquor. In the process, a feed solution prepa...
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WO/2020/107669A1 |
A method for recycling zinc by comprehensively utilizing steelmaking dust. Steelmaking dust is mixed with a reducing agent and an additive and is pressed into pellets, the pellets are fed into a vacuum carbon tube furnace to perform vacu...
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WO/2020/107122A1 |
A process for recovering zinc and associated value metals from zinc-bearing ores, concentrates and intermediates, especially from electric arc furnace dust (EAFD) and spent steel mill zinc pickle liquor (ZPL), comprising leaching the fee...
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WO/2020/107670A1 |
A method for concentrating iron by comprehensively utilizing steelmaking dust: steelmaking dust is mixed with a reducing agent, an additive and water, is pressed into balls which are dried and then baked in vacuum, and a volatile substan...
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WO/2020/057026A1 |
A method for recovering a bromide salt from a bromine-containing smelting soot, belonging to the technical field of recovery of bromide salt and valuable lead and zinc elements, and specifically relating to highly efficient separation an...
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WO/2020/057025A1 |
A method for separating and recovering bromine from circuit board incineration ash using a two-step process belonging to the field of comprehensive recovery of valuable elements from ash using full-wet processes. The method particularly ...
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WO/2020/019777A1 |
Disclosed is a method for producing a zinc-containing complex or zinc oxide using a zinc-containing raw ore via an intermediate step for the synthesis of calcium zincate. The method for producing a zinc-containing complex using a zinc-co...
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WO/2020/021244A1 |
A method of providing an agglomerate, for example a pellet or a briquette, for use in iron- making and/or steel-making,is described. A mixture is provided by binding particles, including a ferrous material and a carbon material,using a b...
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WO/2020/019834A1 |
A mineral processing method for a low-grade zinc-containing raw ore, in particular, relating to a mineral processing method for a low-grade zinc-containing raw ore by a calcium zincate synthesis step. The method comprises a leaching step...
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WO/2020/019854A1 |
A method for producing zinc oxide by means of double leaching, comprising a primary leaching step, an optional purification step, a first precipitation step, a second precipitation step, a primary calcination step, a secondary leaching s...
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WO/2020/002697A1 |
Process for recovering non-ferrous metals from industrial mineral residues Process for recovering a non-ferrous metal from a first solid residue (11) comprising iron. The first solid residue (11) is mixed (10) with a second solid residue...
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WO/2019/242607A1 |
A copper slag depletion device and method. The device comprises a copper slag depletion treatment furnace (10) and a wire feeding device (20), wherein the copper slag depletion treatment furnace (10) uses electrothermal or plasma heat as...
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WO/2019/185863A1 |
The invention relates to a method for the recovery of zinc from zinc containing materials using a smelting apparatus for smelting a metalliferous feed material, wherein the smelting apparatus comprises a smelting vessel, a smelt cyclone ...
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WO/2019/178654A1 |
This patent application refers to a method and a modular plant for chemical and metallurgical processing of industrial waste, such as steel powders, filter dusts, sludges, insoluble residue originated from the extraction, sludges, drosse...
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WO/2019/157589A1 |
Methods and apparatuses for treating aluminum dross, zinc dross, or metal-rich residues. These methods comprise heating aluminum dross, zinc dross or metal-rich residues in an induction furnace to induce electrical current in at least on...
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WO/2019/150005A1 |
The present invention relates to a process for processing a leach solution of black mass of spent alkaline batteries which leach solution (14) includes metals dissolved to an acidic solution and in which process one or more elements (49)...
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WO/2019/128863A1 |
A method for circulated chloridized enrichment of noble metals from circuit board molten pool smelted flue dust. The smelted flue dust is subjected to acid extraction, and calcined two times to obtain calcined sands and flue gas, the cal...
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WO/2019/122985A1 |
A method for the treatment of sludge containing iron, said method comprising - a leaching step wherein the sludge containing iron is mixed with an acid and an oxidation agent so as to create an oxidized leachate, and - a step of precipit...
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WO/2019/123138A1 |
A method for the treatment of sludge containing iron, said method comprising - a leaching step wherein the sludge containing iron is mixed with an acid and an oxidation agent so as to create an oxidized leachate, and - a step of precipit...
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WO/2019/113652A1 |
Controlled crystallisation of zinc containing crystals from a zinc containing purified ammonia – ammonium chloride liquor where the liquor used has a composition of 0.3 to 1M/l Zinc, 1 to 5M/l NH3 and 0.5 to 2.5M/l NH4Cl and is obtaine...
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WO/2019/071797A1 |
A method for producing mixed slag containing nickel and iron, comprising the following steps: S1. furnace slag mixing: adding nickel smelting slag into a reaction apparatus, and adding one or more of lead smelting slag, blast furnace sla...
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WO/2019/071795A1 |
A manufacturing method using a copper-containing slag, comprising the following steps: S1, slag mixing: putting a copper slag into a reaction device and adding calcium-based minerals and additives, heating the slag into a molten state an...
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WO/2019/071788A1 |
A manufacturing method using a copper and iron containing mixing slag. The manufacturing method comprises the following steps: S1, slag mixing: putting a copper slag into a smelting reaction device, adding one or more of a lead smelting ...
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WO/2019/071791A1 |
A method for smelting reduction production of zinc smelting slag. The method comprises the following steps: S1, adding zinc smelting slag to a heat preservation device or a smelting reaction device from which slag may flow out, adding ca...
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WO/2019/071787A1 |
A method for recovering valuable components from smelting slag containing nickel, comprising: adding nickel smelting slag into a reaction device, adding a calcium-series mineral and an additive, forming mixed slag, heating the mixed slag...
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WO/2019/071793A1 |
A method for recovering a valuable component from slag containing copper, comprising: S1. mixing furnace slag: adding copper slag into a smelting reaction device, adding a calcium-series mineral and an additive, forming mixed slag, heati...
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WO/2019/071790A1 |
A method for recovering valuable components from mixed slag containing zinc and iron, comprising the following steps: S1, adding zinc smelting slag into a heat preservation device or into a smelting reaction device from which slag may fl...
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WO/2019/071792A1 |
A production method based on smelting reduction of slag containing zinc and iron. The method comprises the following steps: S1, adding zinc smelter slag into a thermal insulation apparatus or a smelting reaction apparatus allowing slag t...
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WO/2019/071789A1 |
A method for recovering valuable components from zinc smelting slag. The method comprises the following steps: S1, adding zinc smelting slag to a heat insulating device or a smelting reaction device from which slag may flow out, and addi...
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WO/2019/055457A1 |
Described herein are biological devices and methods for using the same to produce oxidized zinc. The biological devices include microbial cells transformed with a DNA construct containing genes for producing a zinc-related protein, an al...
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WO/2019/043261A1 |
The present application relates to a process for the purification of waste materials or industrial by-products, the process comprising the steps of: a) Preparing a composition (C) by blending or mixing waste materials or industrial by-pr...
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WO/2019/043244A1 |
A process is described for the recovery of the chemical components of the "black paste" resulting from the opening of dead alkaline and zinc-carbon batteries.
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