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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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WO/2020/137484A1 |
The present invention proposes a sintered ore production method with which, even in the case where performance in granulation of a blended sintering raw material is improved by adding an ultrafine powder raw material to the blended sinte...
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WO/2020/132752A1 |
The present application relates to a modern plant that includes a method for obtaining commercial antimony trioxide (Sb2O3), arsenic trioxide (As2O3) and metal lead (Pb) from a mineral containing predominantly antimonite. The first step ...
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WO/2020/132751A1 |
The present application relates to a method for obtaining antimony trioxide (Sb2O3), arsenic trioxide (As2O3) and metal lead (Pb) from a mineral containing predominantly antimonite. The first step begins with a process of oxidative roast...
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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 ...
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WO/2020/131958A1 |
The invention provides an inexpensive and scalable means to isolate commercially valuable metals from low quality raw materials with minimal capital expenditures. Metals are extracted from sized raw material using a lixiviant, such as an...
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WO/2020/130386A1 |
Introduced is a sintered ore manufacturing apparatus comprising: a mixture-producing unit for producing a mixture by mixing a first mixed raw material containing iron ore powder; a pellet fabrication unit for fabricating pellets by mixin...
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WO/2020/120319A1 |
The invention relates to a method for fitting or retrofitting a sinter cooler (1), which sinter cooler (1) comprises a cooler grate chain with an endless chain of cooler cars (2). In order to provide means for increasing the effectivenes...
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WO/2020/122701A1 |
The present invention relates to a method for producing briquettes from pellet fines, direct-reduced iron (DRI) sludge, DRI fines and dust from DRI dedusting systems, which comprises processing said materials; briquetting with roller pre...
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WO/2020/120318A1 |
An induration machine (1), with -a travelling grate (2) for transporting bulk material along a transport direction (T) from a heating zone (5) for heating and/or drying the material to a cooling zone (6) for cooling the material by cooli...
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WO/2020/115959A1 |
Proposed is a method which is effective in achieving, e.g., an increase in sintered ore productivity by using a granulation sintering raw material that contributes to reducing the size of a wet zone that appears in a raw material charged...
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WO/2020/116795A1 |
The present invention relates to a method for producing lithium hydroxide from a lithium concentrate by mixing and roasting the lithium concentrate with sodium sulfate, the method being capable of efficiently recovering lithium ions from...
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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/2020/107670A1 |
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/2020/109893A1 |
Disclosed is a system and method for sorting copper-bearing ore to select portions having a target copper content. The system includes an analysis and selection station including first magnetic resonance analyzer measuring the copper con...
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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...
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WO/2020/097667A1 |
An apparatus for processing magnetite iron ore, including an upstream cyclone and a mill for grinding particles, wherein the upstream cyclone is arranged to operate as a splitter by diverting material in an overflow of the upstream cyclo...
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WO/2020/097666A1 |
A method of processing magnetite iron ore, including the step of using a high pressure grinding roller (HPGR) to crush the magnetite. An apparatus for processing magnetite iron ore, including a first high pressure grinding roller for cru...
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WO/2020/097668A1 |
An apparatus for processing magnetite iron ore, including a screen arranged to send oversize material to a regrind mill and undersize material to a high grade concentrate thickener and includes a CCD thickener type system for product gra...
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WO/2020/094211A1 |
The invention describes a method for controlling pellet quality in iron ore production, comprising the steps of mixing water, binder and iron ore particles in at least one mixer to form a mixture (step (i)) and pelletizing the mixture in...
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WO/2020/087185A1 |
The invention provides sensing devices for measuring an electrochemical parameter in a reactor. The sensing devices include one or more electrodes, a fastener comprising a female part and a male part, a sealant inside an internal cavity ...
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WO/2020/087593A1 |
A preparation method for a self-fluxing composite pellet, comprising the following steps: (1) mixing coke, fat coal and quicklime until uniform to prepare a mixture A; (2) adding water to the mixture A and mixing until uniform so as to p...
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WO/2020/092062A1 |
Methods of treating leachates in rock piles. Exemplary leachates include neutral aqueous leachates containing selenates and nitrates, said leachates being found in waste rock piles from coal mining operations. In certain embodiments, the...
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WO/2020/086509A1 |
Methods for recovering metals from metal-containing materials are provided. The metal-containing material comprises either Co and Li (e.g., an electrode material from a spent lithium ion battery) or Fe and Al (e.g., bauxite). The metal-c...
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WO/2020/077851A1 |
A method for recovering iron by means of copper slag calcination and modification. The method comprises: (2) maintaining a calcination temperature and inert gas protection, communicating a calcination system with ambient air, simultaneou...
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WO/2020/073427A1 |
The present invention relates to the field of resource recovery of solid wastes and provides a method for preparing alloy iron and a cement material. According to the present invention, a synergistic effect of carbon, calcium, and heavy ...
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WO/2020/075288A1 |
A method for processing nickel oxide ore, the method having an oxidation roasting step for converting FeOOH included in nickel oxide ore to Fe2O3 or Fe3O4, and a sulfuric acid roasting step for heating and roasting the roasting product o...
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WO/2020/072532A1 |
Methods and systems for calcining aluminum hydroxide (e.g. Gibb site, Boehmite) and then reacting the calcined product with hydrogen fluoride (HF) before being recycled as fluorinated alumina to the molten electrolyte of an electrolysis ...
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WO/2020/064587A1 |
The invention provides a process for preparing iron- and chrome-containing pellets comprising the steps a) producing ore pellets comprising mixing chrome ore material, Chrome Ore Process Residue (COPR) with less than 3 % of a carbonaceou...
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WO/2020/065134A1 |
The invention is directed to briquetting metal oxide dusts and fine material with cement-based binders. After this the briquettes can be fed into arc furnaces for ferrochrome production through already existing inlet systems.
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WO/2020/061600A1 |
The invention relates to a method for recycling waste arising in a steelworks. According to the invention, briquettes are created from a plurality of waste materials, wherein a proportion of iron oxide in the briquettes equals at least 3...
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WO/2020/068721A1 |
Disclosed herein are methods and compositions for increasing the alumina content of a bauxite ore prior to alumina extraction by an extractive process, such as the Bayer process. By adding a beneficiation agent to an aqueous ore slurry, ...
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WO/2020/065691A1 |
Solid agglomerated product, usable as a charge material for an electric arc furnace, comprises at least one fraction of by-product (M; Ml, M2, M3) deriving from a steel plant and which comprises a first part containing ferrous oxide FeO ...
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WO/2020/041914A1 |
The present invention relates to a system for imparting solubility in an aqueous medium to chemical elements contained in a sulfide ore concentrate having iron, cobalt, nickel, copper, platinum-group metals and other metals considered va...
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WO/2020/044849A1 |
A method for producing a nickel sulfate compound, said method comprising a roasting step for heating a nickel-containing starting material which also contains iron under such conditions, wherein an oxygen partial pressure p(O2) and a sul...
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WO/2020/039376A1 |
A method and plant for gold recovery from any gold-bearing ore by law-temperature chlorination, wherein the finely-divided gold-bearing feedstock is chlorinated gaseous chlorine at a temperature of about 245°C to form a highly volatile ...
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WO/2020/034023A1 |
A system and method for dry ablation beneficiation of ore. The system comprises a nozzle to emit an air stream, and a feeder to provide ore particles for entraining in the air stream and colliding. The ore comprises gangue grains bound t...
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WO/2020/035691A1 |
A binder formulation for iron ore pellets, the formulation comprising one or more silicates and a processing aid, a pellet comprising this binder formulation and a process for producing iron ore pellets comprising mixing a binder formula...
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WO/2020/030084A1 |
Disclosed is a process for smelting and separating a rare earth concentrate using a combination method, comprising treating a rare earth concentrate containing bastnaesite by using a method of roasting under an atmosphere - leaching with...
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WO/2020/024006A1 |
The present invention relates to methods for beneficiating a banded coal of the type wherein a substantial portion of the ash constituents is within the cleats. The method includes subjecting a comminuted coal feed, including coal and as...
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