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Matches 251 - 300 out of 9,430

Document Document Title
WO/2023/042194A1
The present invention relates to a process for the beneficiation of solids and ores. The solids comprise metal oxides or metal hydroxides or metal carbonate. In said process, a strong acid salt is reacted with organic weak base (OWB) in ...  
WO/2023/039668A1
The present application relates to a method of recovering vanadium in the form of a vanadyl sulfate solution from a secondary source of vanadium using a reductive leaching process using a saccharide and sulfuric acid. The secondary sourc...  
WO/2023/040534A1
A method for lithium adsorption in a carbonate- and/or sulfate-containing solution, comprising using an aluminum-based lithium adsorbent for adsorption of lithium ions in the carbonate- and/or sulfate-containing solution, after the adsor...  
WO/2023/043071A1
The present invention relaters to a method for recycling a cathode active material and a cathode active material recycled thereby and, more specifically, to a method for recycling a cathode active material and a cathode active material r...  
WO/2023/042606A1
The purpose of the present invention is to recover a high-purity manganese-containing solution from a waste dry battery with high yield. Provided is a method for recovering manganese contained in a waste dry battery, the method comprisin...  
WO/2023/043095A1
The invention relates to a method for extracting waste denitrification catalyst-containing valuable metals and, more specifically, to a method for extracting waste denitrification catalyst-containing valuable metals, wherein a process of...  
WO/2023/036441A1
The method according to the invention for treating steel mill slag comprises the steps of: A) providing steel mill slag in solid form having a fineness such that the steel mill slag has a specific BET surface area of 0.1 m2/g or more; B)...  
WO/2023/037876A1
A method is provided which enables selectively leaching nickel and/or cobalt from an alloy that contains copper and nickel and/or cobalt in a waste lithium ion battery. This alloy processing method involves obtaining a solution that co...  
WO/2023/038542A1
The invention relates to a method of recycling spent lithium-ion current sources. The method includes collecting and sorting current sources, discharging same, shredding, comminuting, screening, leaching, extracting and recovering lithiu...  
WO/2023/036726A1
The invention relates to a method and a system for recovering metals from black mass, comprising the following steps in the following order: step (a), providing black mass, which contains Li; step (b), adding water to the black mass and ...  
WO/2023/038283A1
The present invention relates to a method for recycling a cathode active material and a cathode active material recycled thereby and, more specifically, to a method for recycling a cathode active material and a cathode active material re...  
WO/2023/033023A1
Provided is a method for effectively obtaining a solution containing nickel and/or cobalt 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 is an alloy...  
WO/2023/032495A1
The present invention provides a method for producing a valuable metal at a low cost. A method according to the present invention comprises at least: a preparation step in which a starting material that contains Li, Mn, Al and a valuab...  
WO/2023/029573A1
Disclosed in the present invention is a method for extracting lithium from a waste lithium battery, comprising the following steps: putting positive electrode powder of a waste lithium battery in hydrochloric acid for leaching; filtering...  
WO/2023/029575A1
Disclosed in the present invention is a method for removing copper fluoride from a battery powder leachate. The method comprises: roasting a battery powder, then washing with an alcohol solution; adding an acid solution to the alcohol-wa...  
WO/2023/031545A1
The invention relates to the method for melting a charge of aluminium, comprising: procuring a charge (11, 12, 13) of aluminium of which at least 15 wt% is in the form of a bowl (11) of essentially cylindrical shape, of height h and maxi...  
WO/2023/029898A1
The present invention relates to the technical field of the recovery of spent lithium-ion batteries, and provides a method for recovering valuable metals from spent lithium-ion batteries. The method comprises: subjecting spent lithium-io...  
WO/2023/031546A1
The invention relates to a method for re-melting coated aluminium alloy scrap comprising a step of supplying coated ground aluminium alloy scrap consisting of individual entities; a stripping step; a step of preparing a heel; a step of l...  
WO/2023/029570A1
Disclosed in the present invention is a method for recovering nickel from iron-aluminum slag obtained by battery powder leaching. The method comprises the following steps: adding a sulfuric acid solution into an iron-aluminum slag to dis...  
WO/2023/030165A1
The present invention relates to a method for co-processing a copper-smelting arsenic sulfide slag and an arsenic-containing soot. The method comprises atmospheric pressure acid leaching an arsenic-containing soot to allow copper, zinc, ...  
WO/2023/034971A1
A method of making black mass from lithium containing batterie includes the steps of closing a chamber enclosing lithium-containing batteries and injecting nitrogen into the chamber to create an atmosphere sufficiently low in oxygen to p...  
WO/2023/029572A1
The present invention relates to the field of recycling of waste lithium batteries. Disclosed is a preparation method for aluminum nitride. The preparation method comprises the following steps: adding a sodium hydroxide solution to waste...  
WO/2023/031547A1
The invention relates to a scrap remelting line comprising at least one storage silo configured to store scrap, at least two induction furnaces for remelting the scrap and obtaining the remelted liquid metal, a means for supplying the sc...  
WO/2023/024599A1
Disclosed is a method for the recovery of waste lithium batteries and preparing a ternary precursor, comprising: first pre-treating a waste lithium battery to obtain battery powder and aluminum slag; roasting the battery powder; adding w...  
WO/2023/026041A1
Disclosed herein are methods of purifying precious metal from a precious metal- bearing material comprising the steps of: a) forming an aqueous acidic oxidant mixture from an oxidant, an acid, and a source of bromide ion, said aqueous ac...  
WO/2023/026854A1
Provided is a technology for executing stable processing by extending the furnace refractory life in an electric furnace for heating and melting a raw material containing a valuable metal. The present invention provides an electric fur...  
WO/2023/026769A1
Provided is a method for recovering valuable metals that makes it possible to efficiently recover valuable metals at a high recovery rate. The present invention is a method for recovering the valuable metal from a raw material that con...  
WO/2023/026261A1
Methods are provided for processing a lithium-containing material (e.g., a mineral like spodumene) whereby a lithium sulfate solution derived from the material is reacted with a primary reagent (e.g., Na2CO3 or NaOH) to produce a mixed s...  
WO/2023/027436A1
A reuse method of an active material of a positive electrode of the present invention comprises the steps of: immersing a stack cell, in which a positive electrode plate, a separator, and a negative electrode plate are stacked and combin...  
WO/2023/023727A1
A process for remediation of impounded coal ash comprises removing the coal ash as a slurry from a storage pond. The slurry is subjected to a separation treatment in which fines are separated from coarser material present in the slurry. ...  
WO/2023/026306A1
An apparatus and method for recycling Lithium Cobalt Oxide (LCO) batteries in a dry form is provided, that includes a control unit (110) configured to receive and sort batteries to separate LCO batteries using a sorting unit (102), grind...  
WO/2023/026259A1
Methods are provided for processing a lithium-containing material, such as spodumene, whereby a lithium sulfate solution derived from the material is reacted with sodium hydroxide to produce an intermediate solution comprising a first an...  
WO/2023/022627A1
Invention relates to lithium sorption recovery from natural brines and wastewaters. The method comprises introducing a feed lithium-containing brine to a sorption-desorption concentrating module in a form of a vertically mounted column f...  
WO/2023/020039A1
Disclosed is a method for the wet recovery of valuable metals in a lithium battery. In the method, when hydrogen sulfide gas is pressurized and introduced, waste lithium battery powder is selectively leached, so that Mn2+, Li+, and Al3+ ...  
WO/2023/019311A1
A method for recovering iron values and aluminium values from a red mud residue of the Bayer process is disclosed. The method comprises optionally adjusting the pH of the residue from alkaline toward neutral; separating a solid component...  
WO/2023/016055A1
The present invention belongs to the technical field of ferronickel recovery, and discloses a method for recovering and purifying nickel from ferronickel, the method comprising the steps of: adding ferronickel to hydrochloric acid, mixin...  
WO/2023/016056A1
The present invention belongs to the technical field of ferronickel recovery, and discloses a method for recovering magnesium oxide from ferronickel slag, the method comprising the steps of: crushing and drying ferronickel slag, adding a...  
WO/2023/010207A1
A method of processing size-reduced battery materials comprising aluminum, copper and black mass, may include: subjecting the size-reduced battery materials to a caustic leaching process to yield a pregnant leach solution; physically sep...  
WO/2023/010969A1
Disclosed in the present invention is a method for recycling spent lithium-ion batteries, which method relates to the technical field of the recovery or processing of waste materials. The method for recycling spent lithium-ion batteries ...  
WO/2023/014023A1
Provided is a method for recovering and reusing an active material from a positive electrode scrap. The method for reusing a positive electrode active material of the present invention comprises the steps of: heat-treating a positive ele...  
WO/2023/015171A1
The inventions described herein provide methods and systems for recycling lithium iron phosphate batteries, including: adding an oxidizing agent to a recycling stream of lithium iron phosphate (LiFePO4) batteries to form a leach solution...  
WO/2023/013714A1
A metal recovery device including a leaching unit for causing a metal element contained in a composition to directly leach into a hydrophobic deep eutectic solvent and a recovery unit for recovering the metal element by separating the me...  
WO/2023/007869A1
This system for treating a waste lithium ion battery is for recovering lithium from a waste lithium ion battery through the elution of lithium by immersing, in water, a calcinated product that can be obtained by calcinating a waste lithi...  
WO/2023/006826A1
The present disclosure is related to a crystallization process for the recovery of metals from starting materials comprising Ni and Li.The starting materials, either in aqueous solution or solid form, are reacted with an aqueous solution...  
WO/2023/005404A1
Disclosed is a method for leaching and extracting a valuable metal and a sulfur element from low nickel matte, comprising: adding a ferric iron salt solution and an organic solvent into low nickel matte scraps, introducing an oxidizing g...  
WO/2023/008588A1
The present disclosure addresses the problem of providing a method for recovering rhodium at a high recovery rate from a rhodium-containing plating solution. This method for recovering rhodium from a rhodium-containing plating solution...  
WO/2023/004925A1
A method for enriching and recovering chromium resources by means of the synergistic utilization of chromium-containing sludge and chromium-containing waste residue: the chromium-containing sludge and the chromium-containing waste residu...  
WO/2023/007101A1
The present invention relates to a method for extracting and separating at least one component from an LED, wherein the LED comprises at least one metal, at least one luminophore and at least one layer comprising polydimethylsiloxane.  
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...  
WO/2023/005428A1
Disclosed in the present invention is a method for extracting nickel from a high matte nickel leaching residue. The method comprises: firstly, adding a crushed material of a high matte nickel leaching residue to an organic solvent in whi...  

Matches 251 - 300 out of 9,430