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Matches 1 - 50 out of 11,807

Document Document Title
WO/2020/190822A1
Disclosed are methods of reducing nitration of extractants in metal solvent extraction systems. The methods include at least one of adding a sacrificial compound to the leaching solution or contacting the leaching solution with a gas.  
WO/2020/190237A2
The present invention relates to the use of electric arc furnace flue dust and materials that are recovered from the flue dust of electric arc furnaces (EAF) used in the production of ferroalloys or steel from scrap metals, as electrode ...  
WO/2020/185777A1
A process for water removal and/or recycling of sodium sulphate and/or sodium dithionate containing liquors derived from processing a cobalt resource derived from components of lithium ion batteries comprising steps of deriving from the ...  
WO/2020/179692A1
Provided are a treatment system and a treatment method for waste lithium ion batteries with which a heating treatment can be made more efficient, and large-size waste lithium ion batteries can be subjected to the heating treatment withou...  
WO/2020/179695A1
Provided is an apparatus for roasting a lithium ion battery waste, in which the efficiency of a heating treatment can be improved and the rate of recovery of a valuable metal can be improved. One example of the apparatus for roasting a l...  
WO/2020/178480A1
The present invention relates to a method for smelting metal- and metal oxide- containing side streams, such as slags and wastes generated at stainless steel and ferrochromium works. The invented processing method is a smelting process f...  
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...  
WO/2020/171009A1
Provided is a lithium recovery method whereby highly pure lithium can be recovered from a fluid to be processed that has lithium and an inorganic salt dissolved therein. The lithium recovery method has: a concentration step S8 in which t...  
WO/2020/165502A1
The present disclosure provides a method for recovering metal from metal-containing waste material by leaching, the method comprising providing aqueous solution (14), providing leaching agent precursor, providing a source of external ene...  
WO/2020/161339A1
The invention relates to a method (300) for extracting lithium from an assembly of at least one electric battery cell comprising solid lithium metal, such as a lithium-metal-polymer battery, said method (300) comprising an extraction pha...  
WO/2020/157543A1
The invention relates to a process for recovering precious metals, in particular gold, from activated carbon powder used in a cyanide leaching process for extracting metal, said process comprising the following steps: - an activated carb...  
WO/2020/152457A1
A method for recycling lead-containing waste comprises: (a) dissolving the lead-containing waste in an aqueous solution of a first acid to form a solution of a first lead salt; (b) adding a second acid to the solution of the first lead s...  
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...  
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...  
WO/2020/145829A1
A crushing method for galvanic cells with high energy densities characterised in that a mixture of used cells is placed inside an insulated container and carbon dioxide as dry ice is added to this mixture as a cooling medium. Dry ice is ...  
WO/2020/132733A1
A method for recovering aluminium, or recycling method, is described that is based on separating the aluminium contained in aseptic carton packages (1), flexible packages (2) and residual aluminium alloy powders (3) used in additive manu...  
WO/2020/137995A1
A method for recovering at least cobalt, among valuable metals of cobalt and nickel, from an acidic solution that is produced by subjecting a waste material containing a positive electrode material of a lithium ion secondary battery to a...  
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...  
WO/2020/137997A1
Provided is a method for recovering at least cobalt from among the valuable metals cobalt and nickel from an acid solution containing cobalt ions, nickel ions and impurities, obtained by subjecting waste containing positive electrode mat...  
WO/2020/138321A1
The present invention pertains to a metal sheet comprising a plurality of plated parts, a frame part, and a linking part linking the plated parts and the frame part, wherein the plurality of plated parts, the frame part, and the linking ...  
WO/2020/124130A1
A method for the recovery of metals from a feed stream containing one or more value metals and lithium, the method comprising: subjecting the feed stream to a sulphuric acid leach to form a slurry comprising a pregnant leach solution of ...  
WO/2020/125000A1
Disclosed is a method for separating cobalt from a cobalt and manganese carbonate mixture. The method comprises the following steps: S1, dissolving a cobalt and manganese carbonate mixture using an inorganic acid, in order to obtain an a...  
WO/2020/115369A1
The present invention concerns a process for producing calcium carbonate from a calcium- containing alkaline slag material, the process containing the steps of - extracting the alkaline slag material in a series of extraction steps, incl...  
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...  
WO/2020/109045A1
The present invention relates to a process for the recovery of transition metals from batteries comprising (a) treating a transition metal material with a leaching agent to yield a leach which contains dissolved salts of nickel and/or co...  
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...  
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...  
WO/2020/112221A1
A recycling process that facilitates separation of materials from metallic substrates by cryogenically cooling the recyclable items to induce embrittlement of the metals. Embrittled metals may be shattered more efficiently and with a hig...  
WO/2020/110198A1
A method for producing lead is a method for producing lead using a lead paste having or not having grid lead or galena ore as a raw material, the method comprising bringing the raw material into contact with a solvent that contains, in a...  
WO/2020/105861A1
The present invention relates to a method for reusing plastic and recovering valuable metals using plated plastic and, more specifically, to a method for separating and recovering plated metals (nickel, copper, chromium) and separating a...  
WO/2020/104164A1
The present disclosure concerns a process for the concentration of lithium in metallurgical fumes. The process comprises the steps of: - providing a metallurgical molten bath furnace; - preparing a metallurgical charge comprising lithium...  
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...  
WO/2020/090690A1
This method is for treating a lithium ion secondary battery positive electrode active substance waste product that contains cobalt, nickel, manganese and lithium, and involves: a carbon mixing step in which a powder-form positive electro...  
WO/2020/093041A1
Provided are processes for extracting nickel and lithium from a Nickel(II)/Lithium(I) (Ni2+/Li+) solution. The process for extracting nickel and lithium includes providing a Ni2+/Li+ solution comprising an amount of lithium and an amount...  
WO/2020/092157A1
Processes are described for extracting metals from a combination derived from spent lithium-ion batteries and comprising such metals, a liquid, an acid, and other components.  
WO/2020/080509A1
With this treatment method of a coated wire, for a coated wire for which a metal wire is coated by resin, in coexistence with an alkali, and in a non-combustion atmosphere, the coated wire undergoes low temperature heating to embrittle t...  
WO/2020/078779A1
The present invention relates to a process for the recovery of transition metals from batteries comprising treating a transition metal material with a leaching agent to yield a leach which contains dissolved copper impurities, and deposi...  
WO/2020/076315A1
Systems and methods are described in which spent pickle liquor from metal cleaning processes is utilized to regenerate a lixiviant used to recover valuable metals from industrial waste and other sources. The spent pickle liquor is neutra...  
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...  
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 ...  
WO/2020/044365A1
The present invention relates to a method of extraction of metals from printed circuit boards of electronic devices in an environmentally friendly and economical process. This is achieved by the use of a single acid. The main principle u...  
WO/2020/035181A1
Method for producing thermally processed material (50), the method comprising providing material (35) to be thermally processed, providing carbon-containing scrap material (20) from an electrolysis cell (10) for the production of primary...  
WO/2020/031178A1
The invention relates to hydrometallurgical method for recovering metals from spent energy storage devices. The method comprises combining aqueous hydrobromic acid leach solution and an electrode material of spent energy storage devices ...  
WO/2020/031060A1
A method for obtaining a brass billet with a reduced lead content provides for machining a finished or semi-finished product made of traditional brass by chip removal and obtaining traditional brass chips, and performing a fragmentation ...  
WO/2020/021365A1
Plant for disposing and recovering lithium batteries, comprising: storage (10); supply (20); - crushing (30), submerged in liquid solution and in overpressure of inert gas, for destroying the batteries through cutting discs (32) and mill...  
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...  
WO/2020/016671A1
The purpose of the present invention is to recover a material that constitutes a fuel cell stack, in a simple way. This method for recovering a material that constitutes a fuel cell stack is for recovering a material that constitutes a f...  
WO/2020/018377A1
The present invention relates to the methods of recycling electrochromic devices and also designing such devices while keeping recyclability in perspective. Recyclability includes recovering of certain materials for re-use within the sam...  
WO/2020/011765A1
Process for the recovery of transition metal from spent lithium ion batteries containing nickel, wherein said process comprises the steps of (a) heating a lithium containing transition metal oxide material to a temperature in the range o...  
WO/2020/013293A1
Provided are: an alloy powder that can be obtained from a waste lithium ion battery, wherein the alloy powder can be dissolved easily in an acid solution and enables efficient recovery of valuable metals contained in the alloy powder; an...  

Matches 1 - 50 out of 11,807