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WO/2021/031526A1 |
A microwave continuous suspension roasting method for strengthening the dissociation of complex refractory iron ore, employing a microwave continuous suspension roasting system, and being implemented according to the following steps: (1)...
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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/2021/026193A1 |
A system for processing red mud comprising: a first heating section controlled to heat red mud to a first temperature; a second heating section controlled to heat the red mud to a second temperature lower than the first temperature; a cr...
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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) ...
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WO/2021/016681A1 |
The present invention relates to a comminution process for iron ore or iron ore products (pellet feed, sinter feed, inter alia) at natural humidity, without the need to add water or to include a drying step in the process, which is techn...
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WO/2021/017379A1 |
A wind pressure-type escape prevention system having a gas injection-used cover top and a control method therefor. Said escape prevention system comprises: an injection cover, located at the top of a sintering pallet; an injection pipeli...
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WO/2021/014095A1 |
The present invention relates to a method for extracting a refractory metal selected from Nb, Ta, Mo, W and V, from a solid material comprising the refractory metal in an oxidised form, the method using a layered double hydroxide, and th...
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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...
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WO/2021/006144A1 |
Provided is a method capable of efficiently recovering scandium from an acidic solution including scandium, by ensuring separability between scandium and an impurity element. A method for recovering scandium according to the present in...
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WO/2021/003521A1 |
A method of processing a gold-containing ore that contains reactive sulphide minerals that includes selecting processing conditions to optimize liberating gold in reactive sulphide minerals and processing the ore in accordance with the s...
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WO/2021/002332A1 |
Provided is a method for removing iron, silica, and other impurities from a titanium-containing iron ore or an analogue thereof by an industrially advantageous method to produce a high-quality titanium concentrate. In the present inven...
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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...
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WO/2020/261767A1 |
Proposed are: a method for removing phosphorus from a phosphorus-containing substance, said method being applicable on an industrial scale and being used for the purpose of effectively reducing phosphorus contained in a phosphorus-contai...
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WO/2020/257849A1 |
A process for recovering rare earth elements from a rare earth element containing ore, the process comprising: adding an amount of a silicon containing source to the rare earth element containing ore to form a mixture; subjecting the mix...
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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...
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WO/2020/259500A1 |
The present invention relates to the technical field of vanadium hydrometallurgy, and specifically relates to a method for clean vanadium extraction by carbonation leaching of vanadium slag. The technical problem to be solved by the pres...
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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 (...
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WO/2020/246907A1 |
The group of inventions can be used in preparing iron ore concentrates for metallurgical treatment, for which unacceptable concentrations of phosphorus are generally more than 0.25-0.30%. A method comprises oxidative roasting in a furnac...
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WO/2020/242418A2 |
This invention is related to a method employed for cleaning and refining for transformation into a high quality iron ore concentrate of the iron-containing ores which are employed in iron and steel industry, but are limitedly used or can...
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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...
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WO/2020/223812A1 |
The present application provides a process and system for extraction of rare earth elements using a long-term acid soak. In particular the present application provides a process for extracting rare earth elements from an ore by: (a) soak...
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WO/2020/223777A1 |
The method produces sinter, particularly iron ore sinter, from raw materials defined as sinter feed particles, which have a larger particle size, and pellet feed particles, which have a smaller particle size. A sinter feed mixture flow a...
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WO/2020/225904A1 |
A method for treating a nickel-including raw material, said method being characterized by having an oxidizing roasting step in which a nickel-including raw material that includes a magnesium component is oxidizing roasted to make the mag...
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WO/2020/226234A1 |
Provided is an apparatus for manufacturing hot briquetted iron, the apparatus characterized by comprising: a supply means for cooling and conveying direct reduced iron; a fixed amount discharge means for pulverizing the conveyed direct r...
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WO/2020/218170A1 |
A method for producing an iron ore pellet according to the present invention is characterized by comprising: a step for granulating a raw pellet by introducing a raw material including an iron ore and an auxiliary raw material, and an or...
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WO/2020/218376A1 |
Provided is a processing method for electronic/electrical device component scrap in which, in a sorting and processing step for smelting processing raw material for sorting, from the electronic/electrical device component scrap, a proces...
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WO/2020/217323A1 |
This cooling device for particulate matter is provided with: an annular hopper that is provided around a center axis and that has an inner circumferential wall and an outer circumferential wall that define a receiving space for receiving...
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WO/2020/216320A1 |
A method for reducing oxide ores by using a square carbonization chamber of a coking plant, comprising performing mixing; pressing ores into spheres by means of a ball pressing machine, and putting same into the square carbonization cham...
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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...
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WO/2020/211042A1 |
A method for dealuminizing and desilicating a high-aluminum iron ore concentrate by using sodium roasting-water leaching, comprising the following steps: (1) finely grinding a high-aluminum iron ore concentrate; (2) mixing the high-alumi...
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WO/2020/212587A1 |
The invention concerns a process for the recovery of metals such as Ni and Co from a Li-containing starting material. In particular, this process concerns the recovery of metals M from a Li-containing starting material, wherein M compris...
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WO/2020/212546A1 |
The present disclosure concerns the production of precursor compounds for lithium battery cathodes. Batteries or their scrap are smelted in reducing conditions, thereby forming an alloy suitable for further hydrometallurgical refining, a...
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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...
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WO/2020/206567A1 |
A process for producing lithium carbonate or other lithium chemical products from spodumene ore concentrates, LiAl(SiO3)2, which comprises: (a) calcining the spodumene concentrate to transform it from its crystalline form α to the cryst...
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WO/2020/206520A1 |
The invention converts existing blast furnaces (1) from gas/solid reduction to self-reduction (2), reducing the process time from 8 hours to 30 minutes. Sinter, pellets or mineral (17) are replaced by self-reducing agglomerates (30), and...
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WO/2020/205302A1 |
A method of extracting purified lithium sulfate brine from sedimentary rock is disclosed. The method includes the steps of sizing sedimentary rock ore, suspending the sized ore in an aqueous solution, and separating the aqueous solution ...
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WO/2020/204853A1 |
The invention relates the recovery of zircon and zirconia from the wax casting mold sand that is used for casting Bronze, Brass, Cobalt alloys, 4140 steel and stainless steel as precision casting in industry, become solid waste after com...
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WO/2020/197009A1 |
The present invention relates to a system for extracting tungsten concentrate on the basis of a continuous process method, the system comprising: a storage means which is equipped with a storage bin (10) and a cushion bin (15) for storag...
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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 ...
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WO/2020/188379A1 |
A process (10, 200) for recovery of chromite fines from a slurry includes feeding a feed slurry (68) comprising chromite fines to a wet spiral concentrator stage (14) comprising a plurality of wet spiral separators or wet spiral concentr...
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WO/2020/188527A1 |
This invention relates to a process for the enhanced recovery of chromite and platinum group metals (PGMs) from a mixed chromite/PGM ore. Ore is ground 12, classified 14, to produce a coarse fraction and a fine fraction 36. The coarse fr...
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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...
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WO/2020/169171A1 |
The invention deals with a plant with at least two of parallel reactors each being fed with at least one reactant with a time depending feed rate and its relating control unit. The control unit is configured to communicate at least one c...
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WO/2020/165845A1 |
A method (1) for pre-treating whole ore and/or concentrate comprising a precious metal for subsequent precious metal recovery involves processing a solids feed (2) in a pre-treatment stage (3) and then in a sulfide oxidation stage (4). T...
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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...
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WO/2020/160647A1 |
The present disclosure relates to flotation oils comprising a heavy oil having a specific gravity (SG) equal or greater than 0.87, the heavy oil having been hydrocracked and/or hydrotreated before being thermally and/or catalytically cra...
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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...
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WO/2020/151034A1 |
Disclosed is a method for the separation and enrichment of valuable components from a titanium-containing iron mineral, the method involving: blending a titanium-containing iron mineral with a ferrosilicon alloy powder as a reducing agen...
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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...
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WO/2020/149448A1 |
Disclosed is a method for manufacturing a tantalum sintered body comprising: a step of providing a tantalum scrap; a hydrogenation step of hydrogenating the tantalum scrap to form a tantalum hydride; a pulverization step of pulverizing t...
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