| Document |
Document Title |
|
WO/2021/062897A1 |
Disclosed are an irreversible covalent organic framework for efficiently and selectively recovering gold and a preparation method therefor, and the present invention belongs to the technical field of recovering a precious metal from an a...
|
|
WO/2021/064055A1 |
The present invention relates to a method for smelting metal- and metal oxide containing wastes and side streams, such as slags, dust, scales and sludges genereated in stainless steel and ferrochrome manufacturing processes. The invented...
|
|
WO/2021/060873A1 |
The present invention relates to a method for treating a waste battery, comprising the steps of: preparing a waste battery including an aluminum current collector and a waste cathode including a cathode active material layer formed on at...
|
|
WO/2021/061184A1 |
The subject matter described herein includes a method for extracting a desired metal from a substance. The method includes contacting the substance with an alkaline leach to separate the desired metal from the substance, providing ultras...
|
|
WO/2021/042176A1 |
A process for preparing high purity alumina from aluminium-bearing materials originating from the Bayer process. The process comprising digesting the aluminium-bearing materials with hydrochloric acid to produce an aluminium chloride liq...
|
|
WO/2021/037032A1 |
The present invention relates to solid waste processing in the field of environment protection and comprehensive utilization of resources. The present invention relates to a method for separation, purification and recovery of a valuable ...
|
|
WO/2021/037031A1 |
A method for refining large-diameter pure copper or copper alloy particles by high-energy ball milling, comprising the following steps: (1) using large-diameter pure copper or copper alloy coarse particles the raw material, using cyclohe...
|
|
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...
|
|
WO/2021/028685A1 |
The present invention relates to the desulfurisation of lead-containing waste. In particular, the present invention relates to a method in which lead-containing waste is desulfurised to form a desulfurised lead-containing waste material ...
|
|
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...
|
|
WO/2021/018788A1 |
A process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition meta...
|
|
WO/2021/018372A1 |
The invention relates to a method for recycling lithium batteries, comprising the steps of: (a) breaking down a ground material (10), containing ground components of electrodes of lithium batteries, with concentrated sulphuric acid (12) ...
|
|
WO/2021/018778A1 |
A process for the recovery of lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition metal compound and/or transition metal...
|
|
WO/2021/018796A1 |
A process for the recovery of one or more transition metals and lithium from waste lithium ion batteries or parts thereof is disclosed. The process comprising the steps of (a) providing a particulate material containing a transition meta...
|
|
WO/2021/019564A1 |
The present invention relates to an energy efficient system and method for oxidative roasting of waste catalysts bearing precious metals like molybdenum, vanadium, tungsten involving a removal of hydrocarbons, coke and sulfur, thereby ge...
|
|
WO/2021/014946A1 |
A PGM recovery method wherein the following steps are performed in order to recover a PGM alloy: a reduction smelting step in which a PGM-including processing target, a base metal and/or a base metal oxide, a flux, and a reduction agent ...
|
|
WO/2021/009199A1 |
The invention relates to a method for processing accumulators, batteries and the like, which contain lithium, lithium ions, sodium, potassium and/or nickel as active components. According to the invention, the following steps are carried...
|
|
WO/2021/010042A1 |
Provided is a lithium battery processing method including: a step for adding a deactivating agent to the interior of a lithium battery, the deactivating agent containing at least one of iodine and an iodinated compound; or a step for add...
|
|
WO/2021/008138A1 |
A method for producing particulate metal and titanium carbide using red mud as a raw material, which belongs to the field of smelting. In the present invention, red mud is firstly mixed with low volatile solid carbon and placed in a molt...
|
|
WO/2021/005526A1 |
An improved method for recovering metals from spent catalysts, particularly from spent slurry catalysts, is disclosed. The method and associated processes comprising the method are useful to recover catalyst metals used in the petroleum ...
|
|
WO/2020/264273A1 |
The efficiency of roasting black dross can be improved by pre-processing the black dross before roasting. Black dross can be crushed and reconstituted into pellets having internal channels. The internal channels can be filled with additi...
|
|
WO/2020/264267A1 |
A two stage dross treatment capable of being performed in a single reaction vessel is disclosed. Dross, especially white dross, can be contacted with salt flux in a rotary furnace to recover metal from the dross. This first stage can rec...
|
|
WO/2020/257834A1 |
The invention relates to a melting furnace (1) for melting and/or controlling the temperature of molten material (15), comprising at least one combustion chamber (11) which is formed by a furnace housing (3) with a furnace feed section (...
|
|
WO/2020/264281A1 |
Salt components of dross can be extracted efficiently through evaporation. During dross treatment, temperatures can be permitted to approach or exceed the boiling point of one or more salt components of the dross, preferably in an oxidiz...
|
|
WO/2020/253733A1 |
A method for selective oxygen pressure leaching of precious metal enrichment using nickeliferous material with high iron and copper contents. The method comprises: purification and impurity removal, atmospheric pressure leaching, oxygen ...
|
|
WO/2020/243770A1 |
A process for producing zeolites comprising: a) calcining a clay material to form an amorphous material from clay components in the clay material, b) leaching the material from step (a) in a leaching solution to produce a solution contai...
|
|
WO/2020/246079A1 |
Provided are a system and a method for treating a waste lithium ion battery, by which the recovery rate of lithium can be improved. One example of this system for treating a waste lithium ion battery includes a first aqueous solution pro...
|
|
WO/2020/246479A1 |
Provided are a raw material discharge device, a method of processing of electronic/electrical device component scrap, and a method of raw material discharge for electronic/electrical device component scrap enabling efficient discharge of...
|
|
WO/2020/238685A1 |
Disclosed are a precious metal recovery method, a precious metal recovery device and a precious metal recovery system. The precious metal recovery method comprises: a melting procedure, during which a substance to be recovered, which con...
|
|
WO/2020/229477A1 |
The invention relates to a process for crushing an electrochemical generator (10) comprising a negative electrode (20) containing lithium or sodium and a positive electrode (30), the method comprising a step, in which the electrochemical...
|
|
WO/2020/228750A1 |
A method for producing calcium-containing vanadium slag by adding lime to converter molten iron and a leaching method therefor, comprising: adding molten iron into a converter, adding a coolant and lime, and performing blowing using top-...
|
|
WO/2020/226522A1 |
The present invention falls within the area of the synthesis of ionic liquids, namely it concerns a process of synthesis of the ionic liquid tetraoctylammonium di(2-ethylhexyl)-oxamate (IL-5) with a high degree of purity and its use in t...
|
|
WO/2020/226521A1 |
The present invention falls within the area of the synthesis of ionic liquids, namely it concerns a process of synthesis of the ionic liquid tetraoctylammonium dioctyl-diglycolamate (IL-4) with a high degree of purity and its use in an e...
|
|
WO/2020/224053A1 |
A method for comprehensive recycling polymetallic products from waste integrated circuit boards by pyrolysis, comprising the steps of: (1) smelting and blending: adding polymetal obtained by pyrolysis of waste integrated circuit boards i...
|
|
WO/2020/222254A1 |
Effective utilization of Jarosite waste A method for recovery of metals from Jarosite waste for its effective utilization wherein, the treatment of nitric acid to jarosite waste extracts the nitrates of lead, cadmium, iron, copper, nicke...
|
|
WO/2020/221419A1 |
The invention relates to a method for the removal of silicon from slag that is produced when silicon dioxide is reduced with carbon in a smelting furnace. According to the method, the liquid slag is allowed to rest and, as a result, a li...
|
|
WO/2020/220559A1 |
A recovery method for valuable metals in waste nickel-cobalt-manganese ternary lithium batteries; the method comprises: removing impurities from Fe2+, Al3+, Ca2+ and Mg2+ before extraction so that the purity of valuable metal products re...
|
|
WO/2020/217890A1 |
In the present invention, an AC electric furnace equipped with three electrodes is charged with charge material containing a metallic raw material and an unreduced slag, the metallic raw material containing at least one of a ferrosilicon...
|
|
WO/2020/215857A1 |
Disclosed is a method for extracting a rare earth element from a neodymium-iron-boron waste by means of metal lead liquid-liquid separation, comprising first heating and melting metal lead in a crucible; then immersing the neodymium-iron...
|
|
WO/2020/212363A1 |
A process for removal of aluminium and iron in the recycling of rechargeable batteries comprising providing a leachate from black mass, adding phosphoric acid (H3PO4) to said leachate and adjusting the pH to form iron phosphate (FePO4) a...
|
|
WO/2020/213393A1 |
According to the present invention, a charge containing: ferrochromium and/or ferrosilicon alloy iron containing metallic Si; and unreduced slag containing Cr oxide generated during oxidative refining is charged into an electric furnace,...
|
|
WO/2020/211757A1 |
A method for recovering copper from a phosphoric acid extractant-containing solution. The method comprises: mixing a phosphoric acid extractant-containing solution with solvent oil to obtain an oil-water mixture; performing oil-water sep...
|
|
WO/2020/206830A1 |
Disclosed is a method for recovering sodium, iron and titanium from red mud and directly cementing molten slag, comprising the following steps: (1) preparing red mud having high contents of iron and titanium as a raw material; (2) dehydr...
|
|
WO/2020/209761A1 |
The invention relates to the field of chemical and metal industry and may be used for integrated processing of finely dispersed metal-containing waste, in particular for processing red mud, as well as ash-slag waste of coal thermal power...
|
|
WO/2020/201869A1 |
Disclosed are processes for recycling chromium oxide and producing chromium-alloy steel. Chromium oxide is reduced to metallic chromium and metallic chromium is mixed with steel to form chromium-alloy steel.
|
|
WO/2020/203937A1 |
The purpose of the present invention is to inexpensively and efficiently recover valuable metals such as Co or Ni from a recovery product containing Al2O3, CoOX, or NiOX. In a method for recovering valuable metals according to the pres...
|
|
WO/2020/203585A1 |
This method is for processing lithium ion battery scrap and comprises: a leaching step for leaching lithium ion battery scrap with an acid to obtain a post-leaching liquid that contains at least fluoride ions and aluminum ions; a neutral...
|
|
WO/2020/191504A1 |
Pyro-hydrometallurgical methods are described to economically and environmentally recover a target metal from iron slag or steel slag. For instance, the method can enable subjecting an iron or steel slag feed to acid-baking with an acid ...
|
|
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 ...
|
