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WO/2015/146307A1 |
A method for removing a metal contained in an organic-solvent solution thereof, the method comprising dissolving a polymer in the metal-containing organic-solvent solution to form a composite of the metal with the polymer and separating ...
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WO/2015/146329A1 |
Provided is a copper removal method for an aqueous nickel chloride solution, the method able to prevent a reduction in organic solvent extraction capability and oil/water separation performance and further, when compared to prior art, th...
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WO/2015/133385A1 |
The purpose of the present invention is to provide a solution for use in the extraction of cobalt, whereby it becomes possible to extract cobalt at lower cost and more safely compared with a case in which a conventional one is used. The ...
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WO/2015/129385A1 |
A method for producing hematite is provided, which firstly enables Ca-based neutralizers and parent-rock-derived neutralizers other than Ca-based neutralizers to be used in actual operations for refining, from a fine iron oxide-containin...
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WO/2015/118613A1 |
Provided are: an Ni ball having strong falling-impact resistance and capable of suppressing the occurrence of joining failures and the like; an Ni core ball; a solder joint; a solder paste; and a solder foam. An electronic component (60)...
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WO/2015/114913A1 |
Provided are: a sulfide-manufacturing facility which can attain effective utilization of hydrogen sulfide gas and thus improve the reaction efficiency of hydrogen sulfide; and a sulfide-manufacturing process. This sulfide-manufacturing f...
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WO/2015/107985A1 |
The purpose of the present invention is to provide a manufacturing method for producing hematite for ironmaking from leachate, the method suggesting a separation method for leachate from which hematite-containing matter that can be used ...
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WO/2015/097343A1 |
The invention relates to a method and an arrangement for nickel laterite processing. The method comprises the steps of providing a cold feed slurry; heating cold feed slurry one or more times to obtain a heated diluted feed slurry;removi...
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WO/2015/097342A1 |
The invention relates to a combined heater-decanter unit in a nickel laterite process. The unit comprises a vertically elongated vessel (1) comprising a heating section (2) arranged in the upper part of the vessel (1), a pressure decanta...
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WO/2015/092132A1 |
To exploit dusts and fine ore generated in a ferronickel process, a pelletizing feed is produced from dusts and finely divided ore material. The pelletizing feed is pelletized to produce green pellets, which are sintered in a steel belt ...
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WO/2015/091528A1 |
The present invention relates to a pelletization of fine-grained ore particles with the following steps: a) mixing the ore particles with water to which surface-active sub¬ stances have been added, b) adding a binder and at least one ag...
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WO/2015/093363A1 |
The present invention suppresses elution of manganese from manganese sediment in slurry accumulated in a sedimentation tank. The present invention sets the pH of the slurry including manganese sediment accumulated in the sedimentation ta...
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WO/2015/093364A1 |
The purpose of the present invention is to efficiently use a neutralizer in the wet smelting of nickel oxide ore. In this neutralizing method for neutralizing, with limestone and hydrated lime, a slurry that includes sulfuric acid and im...
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WO/2015/081368A1 |
According to the invention there is provided a process to produce a refined nickel metal product from a mixed hydroxide intermediate, by direct hydrogen pressure reduction of the leach solution. Other products containing the nickel, coba...
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WO/2015/080336A1 |
Addressed are an apparatus and method for recycling by-products of a smelting process, wherein the apparatus comprises: a leaching tank for leaching reduced ore; an oxidation tank disposed sequentially after the leaching tank and oxidizi...
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WO/2015/072338A1 |
In the present invention, for useful objects that are electronic devices or electronic device components containing specified reusable substances, a useful object library is prepared that has a data structure associating, for each useful...
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WO/2015/071547A1 |
The invention relates to a method and an arrangement for separating nickel and cobalt by oxime extraction from an aluminium- and iron-fee leach solution obtained from acidic nickel laterite leach. The process is performed at a pH in the ...
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WO/2015/041064A1 |
Provided is a production method in which iron oxide (hematite) having a sulfur content that is low enough to make it possible to use said iron oxide as a starting material for iron production is purified from a leaching residue containin...
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WO/2015/025558A1 |
The purpose of the present invention is to collect scandium from an acidic solution containing calcium, magnesium and scandium with high efficiency and in a selective manner. In the present invention, an acidic solution containing calciu...
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WO/2015/009204A2 |
The process of extraction of nickel, cobalt and other metals from laterite ores relates to hydrometallurgy with heap leaching and ion-exchange processing. The process includes preparation of leach solutions, that contain acid belongin...
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WO/2015/007658A1 |
Process for smelting nickel metal from nickel oxide by reduction melting in an electric arc furnace, characterized in that: - introduced into said furnace are NiO, a carbon-based material and oxides intended to form a synthetic slag, the...
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WO/2015/001893A1 |
In the present invention, proposed is a separation method for a leaching residue from which can be obtained a hematite-containing substance that can be used as an iron manufacturing-use starting material, and provided is a production met...
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WO/2014/203661A1 |
Provided is a hematite manufacturing method by which hematite with a low sulfur level can be manufactured using a high-pressure acid leaching (HPAL) process with a nickel oxidized ore. Magnesium oxide manufactured by steps (1) through (5...
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WO/2014/203557A1 |
The present invention mitigates concentration of stress due to differences in thermal expansion and prevents damage of lining members. A lining structure (1) for a lining member (20) provided on the base material (10) of an inserted tube...
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WO/2014/199771A1 |
Provided is a wastewater treatment method capable of selectively and efficiently separating and removing high-purity manganese sediment from sulfuric acid acidic wastewater containing aluminum, magnesium and manganese. In this wastewater...
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WO/2014/175094A1 |
Proposed is a method for separating a leaching residue from which can be obtained a hematite-containing material that can be used as a starting material for iron manufacturing, and provided is a production method that, from the leaching ...
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WO/2014/175093A1 |
Provided is a hydrometallurgy method that is for nickel oxide ore, increases the durability of the production equipment in the method for hydrometallurgy of a nickel oxide ore by means of a high-pressure acid leaching method, involves si...
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WO/2014/153639A1 |
The invention provides a process for the leaching of a laterite ore or concentrate for the recovery of value metals, at least one value metal being nickel. The laterite ore or concentrate is subjected to a leaching step in acidic mixed c...
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WO/2014/155855A1 |
Provided is a manufacturing method for hematite for steel manufacture in which conventional Ca based neutralizing agents and neutralizing agents, other than Ca-based ones, derived from base rock can be used in actual operations for refin...
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WO/2014/148097A1 |
A method for the wet-smelting of nickel oxide ore by high pressure acid leach, wherein a high iron oxidation ratio is achieved in order to fix most of iron in a leach residue in the form of hematite, the amount of sulfuric acid used duri...
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WO/2014/148431A1 |
Provided is a method for efficiently separating nickel, cobalt and/or scandium, and impurities from an acidic solution containing impurities such as manganese, iron, zinc, and aluminum. A valuable-metal extracting agent of the present in...
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WO/2014/136487A1 |
The present invention makes it possible to increase the throughput in ore processing and thus attain enhanced productivity without causing poor reaction or deterioration in operation efficiency. This hydrometallurgical plant (10) is prov...
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WO/2014/134708A1 |
There is provided a method of recovering at least one target metal which is adhered to a stainless steel surface, while mitigating corrosion to the stainless steel surface. The target metal is nickel or cobalt. The method comprises conta...
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WO/2014/133421A1 |
The invention relates to the field of non-ferrous metallurgy and specifically to a method for processing laterite (oxidized nickel) ores with the direct production of ferronickel in the form of metal granules. The method comprises mix...
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WO/2014/127808A1 |
The invention is directed to the production of copper and/or cobalt sulfate from copper and/or cobalt sulfide concentrates with low sulfur contents, wherein a feed stream containing copper and/or cobalt sulfide is at least partly convert...
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WO/2014/125558A1 |
Provided is a wet-mode smelting method for collecting nickel (Ni) from a Ni oxide ore employing a high-pressure acid leaching process, in which the abrasion of a facility by an ore slurry can be prevented, the amount of a final neutraliz...
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WO/2014/122363A1 |
The present invention relates to a method and an arrangement for pressure and temperature let down of autoclave discharge slurry, in particular in pressure oxidation or high pressure acid leach of metal containing ore. The method of the ...
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WO/2014/114752A1 |
We propose a method of removing iron from leach solutions, obtained by leaching of metal bearing materials with acids, in the form of hydroxide and/or oxide by precipitation. The advantages with the method according to the invention incl...
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WO/2014/115686A1 |
Provided are: a method for removing an impurity element, wherein magnesium is selectively removed from a solution containing nickel; and a method for producing high-purity nickel sulfate using this method for removing an impurity element...
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WO/2014/112248A1 |
Provided is a method with which, in a solid-liquid-separation processing method for separating and removing solid content in a slurry while performing multi-stage cleaning of the slurry, the clarity of an obtained supernatant liquid can ...
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WO/2014/109160A1 |
A slurry-transporting facility provided with multiple series of pump devices, wherein efficient operation is made possible by limiting the stopping of slurry supply to the transport destination during switching of pump device use between...
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WO/2014/109161A1 |
When starting up a dezincification plant used in a hydrometallurgical dezincification process for nickel, reduction in production quantity can be inhibited by suppressing reduction in throughput in the dezincification plant, and filtrati...
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WO/2014/091904A1 |
Provided are a heavy-metal removal method and a heavy-metal removal device which enable usage amounts of a neutralizing agent to be reduced. Inside a neutralization tank provided with a vertical-type cylindrical reaction vessel (110), ag...
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WO/2014/091903A1 |
A processing device and a processing method for a barren solution are provided, with which hydrogen sulfide can be efficiently removed from the barren solution. Inside an aeration tank provided with a vertical-type cylindrical reaction v...
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WO/2014/091805A1 |
In the present invention, nickel is selectively extracted from an acidic solution that contains a high concentration of manganese. This valuable metal extraction agent is represented by the general formula. In the formula, R1 and R2 are ...
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WO/2014/086595A1 |
The invention relates to an assembly and an installation method and an operating method for incorporating heat into an aggregation (3) of fractured ores and/or metallic sands in order to extract resources contained in the aggregation (3)...
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WO/2014/084129A1 |
Provided is a neutralization treatment method, whereby, in a neutralization treatment that is carried out for discharging a process solution generated in a metal refining process to the outside of a system, it becomes possible to reduce ...
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WO/2014/080665A1 |
One of the purposes of the present invention is to provide a settling separation method for a neutralized slurry, said settling separation method being capable of: efficiently neutralizing a leachate obtained by leaching nickel and cobal...
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WO/2014/047672A1 |
A two stage method (10) for the recovery of nickel and other metals from nickel bearing laterite ore, sulphide ore, oxide ore or concentrate (14), and nickel sulphide ore or tailings (24) is described. The method (10) in a first stage le...
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WO/2014/045579A1 |
Provided is a molten salt bath which is used to dissolve a WC-Co super-hard alloy and which is obtained by homogeneously melting a molten alkali nitrate in a molten alkali chloride, wherein at least two compounds selected from among the ...
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