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WO/2017/031595A1 |
The disclosure relates to methods for preparing lithium hydroxide. For example, such methods can comprise mixing a lithium-containing material with an acidic aqueous composition optionally comprising lithium sulfate and thereby obtaining...
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WO/2017/033395A1 |
According to the present invention, when liquid fuel is supplied to a charge layer to produce sintered ores, combustion efficiency of the liquid fuel is improved and productivity of sintered ores is improved. The charge layer is formed b...
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WO/2017/033136A1 |
Present invention describes a biotechnological procedure to remove magnetic sulfur impurities from iron concentrate, wherein includes: to bioleach iron concentrate ores agglomerated in heaps under temperature condition between 5 and 35°...
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WO/2017/027937A1 |
The present invention refers to an ore concentrator was capable of yielding another crushing operation as it can treat fines sized between 0.01 and 12 millimeters, separating them in a single operation, with a concentration level of 90% ...
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WO/2017/024552A1 |
Provided is a method and system for preparing a carbonyl nickel powder using laterite-nickel ore. The method comprises: (1) mixing and pelletizing laterite-nickel ore, high-sulphur coal, and additives to obtain pellets; (2) reducing the ...
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WO/2017/026203A1 |
[Problem] To provide a method for producing sintered ore in which producibility using a sintering machine can be improved by granulating optimal pseudoparticles when fine powdery iron ore is used as a raw material to be compounded for pr...
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WO/2017/024551A1 |
Provided is a method and system for preparing a carbonyl nickel powder using laterite-nickel ore. The method comprises: (1) mixing and pelletizing laterite-nickel ore, high-sulphur coal, and additives to obtain pellets; (2) reducing the ...
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WO/2017/020793A1 |
A cobalt or nickel enrichment method comprises: performing a reduction process on a cobalt mine or nickel mine; and then obtaining, by a magnet, enriched cobalt or nickel. The method addresses problems of high power consumption and a low...
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WO/2017/015435A1 |
The present invention relates to the recovery of rare earths, scandium, niobium, tantalum, zirconium, hafnium, titanium, and the like from ores or concentrates containing fluorine. More specifically, the ores or concentrates are pretreat...
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WO/2017/014204A1 |
With attention directed at the reduction treatment gas that contains metallic zinc vapor generated when reduced iron is manufactured from electric furnace dust that contains iron oxides and zinc oxide, the present invention addresses the...
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WO/2017/005501A1 |
The above invention relates to a process for the roasting of ore particles containing carbon and/or sulfur, wherein the particles are fed into the reactor for roasting. Anoxygen containing gas is introduced, wherein the particles are roa...
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WO/2017/006200A1 |
Iron ore pellets including a core comprising iron ore, a first coating comprising lime, and a second coating comprising cement, wherein the first coating is disposed between a surface of the core and the second coating. A process for man...
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WO/2016/206673A1 |
A method and device for pickling coated metal scrap pieces, wherein the metal scrap pieces are discharged into transport baskets provided for this purpose, and the transport baskets with the metal scrap pieces are brought into contact wi...
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WO/2016/205906A1 |
This invention provides a process to thermally upgrade metal-containing ores comprising the following steps: (1) mixing: (i) ore, (ii) from 4 and up to 15% by weight relative to the ore of reducing agent, (hi) sulphur bearing agent, (iv)...
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WO/2016/195186A1 |
The present invention relates to a concentrate drying method and a concentrate drying apparatus which pulverize mined rocks including mineral resources mined from a mine or the like to a certain size, remove impurities from the mined roc...
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WO/2016/191833A1 |
The method includes the steps: - mixing the waste as pulp with 25-40% aqueous sodium hydroxide and heating to 35-80°C with stirring; - continuous addition of oxalic acid solution and 0.5 - 10% hydrogen peroxide until equivalent molar pr...
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WO/2016/187658A1 |
The present invention provides a method and apparatus for agglomerating hydrophobic particles from a feed slurry. The method comprises adding a binder to a feed stream and conveying the feed stream and binder to an agglomerating device. ...
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WO/2016/190023A1 |
This reduced iron manufacturing method is characterized in: comprising a step for manufacturing an agglomerate by agglomerating a mixture comprising an iron oxide-containing substance and a carbonaceous reducing agent, and a step for man...
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WO/2016/184682A1 |
The invention relates to a cooling device (2; 50) for cooling bulk goods (4), which has a cooling shaft (8) and at least one supply chute (14) for introducing the bulk goods (4) into the cooling shaft (8). In order to achieve uniform coo...
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WO/2016/180624A1 |
The above mentioned invention describes a process for removing arsenic and/or antimony sulfides from copper, nickel and/or gold containing ore particles. Ore particles are fed into a reactor, wherein a fluidizing gas is injected into the...
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WO/2016/179718A1 |
The present invention relates to an agglomeration drum and to a mineral agglomeration method performed inside the drum for, pre-treating minerals, both used principally in hydrometallurgy. The drum and method use a gas recirculation syst...
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WO/2016/177936A1 |
Provided herein is a process of fire refining blister copper, comprising the steps of (a) providing molten blister copper into an anode furnace; (b) when sulfur concentration of the molten blister copper provided in step (a) is above a f...
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WO/2016/170467A1 |
Disclosed herein are methods and compositions for producing composite pellets comprising a core comprising: iron ore and a carbonaceous reducing agent; and a shell comprising: iron ore; and having a core and shell transition in a manner ...
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WO/2016/155267A1 |
Provided are a process and system for staged recycling of waste heat and pollutant emission reduction of sintering flue gases. According to the emission characteristics of flue gas temperature, oxygen concentration and humidity in the pr...
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WO/2016/146266A1 |
The method comprises the following steps: (a) Preliminary wet magnetic separation to separate the iron containing phase from the silicate non-magnetic phase; (b) Mixing the iron containing phase with 5-10% of aqueous alkali hydroxide at ...
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WO/2016/148509A1 |
The present invention relates to a magnetite-based sintered ore wherein magnetite fine ore, which has low reducibility and is thus not currently used among iron ores used as a main raw material in steelmaking processes, is improved to ha...
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WO/2016/139460A1 |
The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.
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WO/2016/139461A1 |
The present invention relates to a process for recovering a primary metal residue from a metal-containing composition.
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WO/2016/135750A1 |
The present invention is related to a high aspect ratio column thickener and a process thereof useful for dewatering of iron ore tailings. The column thickener has been developed with multiple feed inlet points and an auxiliary inlet poi...
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WO/2016/136069A1 |
Provided is a wet smelting method for nickel oxide ore that is capable of effectively reducing the amount of sulfuric acid used in the leaching step and the amount of a neutralizer such as slaked lime used in the final neutralization ste...
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WO/2016/136068A1 |
Provided is a smelting method whereby a reaction for reducing pellets, said pellet being formed by using a saprolite ore as a starting material, can be effectively conducted and thus an iron/nickel alloy having a nickel grade of, for exa...
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WO/2016/131445A1 |
The steps provided in a refining method for removing arsenic from arsenic-containing sulphide concentrates, more particularly from arsenic- and noble-metal-containing sulphide concentrates (10) as preparation process step for subsequent ...
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WO/2016/128596A1 |
The present invention relates to a selective process for extracting metals from a raw mineral, which comprises: treating the raw mineral with a dominant microwave magnetic field, or an H-field, in an open-ended single-mode applicator; an...
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WO/2016/125115A1 |
A plant (1) for recovering metals and/or metal oxides from industrial process waste, in particular oil product refining waste, comprises a furnace (2); a feed line (30) connected to a main inlet (12) of the furnace for feeding the furnac...
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WO/2016/124823A1 |
The invention relates to a method and to an arrangement to prepare chromite ore (5) for pelletizing and sintering. The invention relates also to a pelletizing feed. The method comprises a providing step for providing a chromite concentra...
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WO/2016/115593A1 |
A method for producing a chromite agglomerate from a particulate chromite, the method comprising the steps of: controlling the moisture content of the particulate chromite within the range 10 % to 40 % by weight; combining the particulat...
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WO/2016/110572A1 |
Composition comprising at least one calcium-magnesium compound and a second compound chosen in the group consisting of B2O3, NaO3, calcium aluminate, calcium silicate, calcium ferrite such as Ca2Fe2O5 or CaFe2O4, Al, Mg, Fe, Mn, Mo, Zn, ...
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WO/2016/108256A1 |
The purpose of the present invention is to further improve reducibility in sintered ore. These quasi-particles for use in sintering, intended for use in the manufacture of blast furnace sintered ore, include at least an iron ore starting...
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WO/2016/103812A1 |
Provided is a smelting method capable of effectively promoting a reduction reaction on pellets formed using nickel oxide ore as starting material to obtain a ferronickel alloy with a high nickel grade of at least 4%. The present inventio...
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WO/2016/099010A1 |
A sintering machine according to one embodiment of the present invention can comprise: a conveyor part positioned between a hopper part for supplying raw materials to be sintered and an ore discharging part through which the raw material...
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WO/2016/100453A2 |
A system and method for improving leach kinetics and recovery during above-atmospheric leaching of a metal sulfide is disclosed. In some embodiments, the method may comprise the steps of: (a) producing a metal sulfide concentrate [34] vi...
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WO/2016/096332A1 |
The invention relates to a method for reducing molten raw materials, in which method the raw materials, in a solid or molten state, are placed on a bed comprising coke pieces, which bed is at least partially inductively heated, and the r...
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WO/2016/086521A1 |
A method for vacuum secondary enrichment of a low-grade brown coal germanium concentrate and a device therefor. In the method, by way of microwave heating, the low-grade brown coal germanium concentrate is processed in a vacuum volatiliz...
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WO/2016/089192A1 |
The invention relates to a method for producing briquettes from pellet fines, DRI sludge, DRI fines and dust from DRI dedusting systems and, in this way, reincorporating same into steel production processes, thereby contributing to the r...
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WO/2016/089023A1 |
Provided are: a direct reduced iron compacting method capable of effectively removing the gas present in direct reduced iron; a direct reduced iron compacting apparatus; and a molten iron manufacturing apparatus containing the same. The ...
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WO/2016/088240A1 |
An apparatus for producing an ore slurry and a process for producing an ore slurry are provided with which it is possible to produce an ore slurry having a high solid content and a high specific gravity, while maintaining a slurry throug...
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WO/2016/082010A1 |
The proposed invention is a process for obtaining the ore dust suppressant resin with the chemical recycling of Poly thermoplastic polymer (Ethylene Terephthalate) or PET. It is proposed a method for obtaining the resin by using the depo...
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WO/2016/084830A1 |
Provided is a method for recovering scandium, with which it is possible to easily and efficiently recover high-purity scandium from nickel oxide ores. This method for recovering scandium involves passing a solution containing scandium th...
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WO/2016/080650A1 |
The present invention comprises: a plurality of sintering trailers which are arranged movably along a moving path and in which raw material is charged; an ignition furnace which is arranged on the upper portion of the sintering trailer a...
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WO/2016/077374A1 |
Binder compositions for agglomerating iron ore fines are provided, the compositions comprising: one or more types of modified starch and one or more types of synthetic dry polymers. A process for preparing iron ore pellets with the binde...
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