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WO/2013/026093A1 |
A method (10) for the separation of multivalent species from monovalent species in an acidic leach solution (14). The method (14) comprises the steps of passing the acidic leach solution (14) through a membrane in a membrane treatment st...
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WO/2013/016813A1 |
There is provided a process for treating a feed material composition including a solid particulate precious metal material-rich feed material composition fraction and a solid particulate rare earth metal material-rich feed material compo...
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WO/2012/171480A1 |
A hydrometallurgical method for lateritic nickel ore comprises leaching the raw material by means of a strong acid in high-pressure pipelines to improve the leaching rate of various valuable components in the raw material; adding a compl...
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WO/2012/168091A1 |
To achieve high efficiency in regeneration of waste fluid from metal plating electrolytes for example, a device and a method for recovering a recovering material from a recovering fluid containing the recovering material are provided, wh...
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WO/2012/164976A1 |
A method for recovering valuable metals is provided in which the degree of oxidation of molten waste batteries is stabilized and separation between slag and an alloy is ensured. The method includes a roasting step (ST10) in which waste b...
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WO/2012/150984A2 |
Provided are methods using a ketoxime in metal extraction. One aspect of the invention relates to a method for the recovery of metal from a metal-containing aqueous solution at an elevated temperature using a ketoxime. Another aspect rel...
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WO/2012/151028A1 |
A process for the recovery of selected base metals from a solution includes selectively precipitating metals from the solution using substituted quaternary ammonium salts (SQAS). SQAS is generally represented by the formula H0-3 R4-1 NX ...
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WO/2012/140951A1 |
Provided is a method in which, when discarded batteries such as lithium-ion batteries are treated by a dry process, slag having a reduced viscosity is obtained to heighten the recovery of valuable metals. The method for recovering valuab...
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WO/2012/127291A1 |
A method of recycling a battery pack (10) that includes an assembled battery composed of a plurality of electric cells that are connected in series to one another includes a heating process of heating the battery pack (10) by supplying a...
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WO/2012/119187A1 |
A process for recovery of one or more base metal values from a laterite ore is disclosed The laterite ore may comprise limonite and/or saprolite, and the process has the steps of contacting the laterite ore with an organic acid to form a...
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WO/2012/113980A1 |
The invention relates to a method for roasting nickel sulphide produced by precipitation into nickel oxide in a fluidized bed furnace. The precipitated, very fine-grained nickel sulphide precipitateis micropelletized and the micropellet-...
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WO/2012/113263A1 |
A method for removing iron and aluminum from an iron-based waste material containing high-value elements through natural oxidation comprises： pulverizing the iron-based waste material, and then mixing with water and a small amount of a...
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WO/2012/116003A1 |
The present invention relates to processes for hydromethanating a nickel-containing (and optionally vanadium-containing) carbonaceous feedstock while recovering at least a portion of the nickel content (and optionally vanadium content) o...
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WO/2012/111693A1 |
Provided is a method for improving the recovery rate of valuable metals such as cobalt when drying the battery waste of lithium ion batteries and the like. A second alloy excellent in terms of iron-cobalt separation performance and conta...
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WO/2012/111690A1 |
Provided is a method for stabilizing the degree of oxidation of molten battery waste, and definitively separating slag and alloy. The method is provided with a pre-oxidation step (ST20) for roasting and oxidizing battery waste; and a dry...
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WO/2012/103617A1 |
The present invention refers to a direct purification process of a nickel laterite leaching effluent.
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WO/2012/103618A1 |
The present invention refers to a MHP process do produce rough ferro- nickel product. The process comprises the steps of: mixing nickel hydroxide with an iron source and slagging agents; putting the mixture in contact with a reducing age...
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WO/2012/100293A1 |
A method of selectively leaching a metal such as nickel from an ore or ore processing intermediate comprising the metal and cobalt. The ore or ore processing intermediate is contacted with an acidic leach solution comprising an amount of...
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WO/2012/102384A1 |
The present invention provides a valuable metal leaching method and a valuable metal collection method, in each of which the leaching of a valuable metal can be achieved with high efficiency, the amount of a reducing agent to be used can...
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WO/2012/102265A1 |
Provided is a process for producing an ore slurry which has low yield stress to an extent that the ore slurry can be transferred even when the concentration of the ore slurry is high and which does not undergo any problem associated with...
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WO/2012/090654A1 |
A method for recovering a valuable material from a lithium-ion secondary battery, including: a roasting step for roasting a lithium-ion secondary battery including a valuable material in a metallic battery case, and obtaining a roasted m...
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WO/2012/081896A2 |
The present invention relates to a method for effectively recovering nickel from a raw material containing nickel, and comprises: a reduction step for reducing the raw material containing nickel at a temperature between 550-950℃, using...
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WO/2012/080577A1 |
The invention relates to a method for separating nickel and other valuable metalsparticularly from material having low nickel content, which contains iron and magnesium in addition to nickel and other valuable metals.The material havingl...
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WO/2012/081897A2 |
The present invention relates to a method for enriching ferronickel to a high density from a raw material containing nickel and iron, and more particularly comprising: a step of slurrifying for reducing the raw material containing nickel...
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WO/2012/081645A1 |
The purpose of the present invention is to improve the recovery rate of a positive-pole active substance and to prevent valuable metal recovery loss when the positive-pole active substance is separated from a lithium ion battery. By mean...
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WO/2012/078289A2 |
Nanomaterial preparation methods, compositions, and articles are disclosed and claimed. Such methods can provide nanomaterials with improved morphologies relative to previous methods. Such materials are useful in electronic applications.
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WO/2012/065222A1 |
A method (10) for the leaching of a metal sulfide, the method characterised by the steps of: combining a metal sulfide (12) with water to form a slurry (13); directing the slurry (13) to an autoclave (14) for acid leaching at elevated te...
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WO/2012/065191A2 |
A process for the selective recovery of Mo, V, Ni, Co and Al from spent hydroprocessing catalysts includes the steps of treating the spent catalysts to recovery metals, support as well as chemicals. The process steps include deoiling, de...
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WO/2012/050317A2 |
Valuable metals such as cobalt, nickel, manganese, and lithium can be economically recovered from various lithium secondary battery-related wastes by the inventive method which comprises liquid-phase leaching a scrap powder containing Co...
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WO/2012/042714A1 |
To provided a method for recovering lithium from a lithium ion battery using comparatively simple equipment and without using a cumbersome process. A lithium extraction method for extracting lithium from the positive electrode material o...
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WO/2012/026061A1 |
A valuable-metal recovery method for recovering metals from lithium-ion batteries without using cumbersome steps and using comparatively simple equipment. A positive-electrode material containing a lithium/transition-metal composite oxid...
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WO/2012/024124A2 |
A process for treating spent catalyst containing heavy metals, e.g., Group VIB metals and Group VIII metals is provided. In one embodiment after deoiling, the spent catalyst is treated with an ammonia leach solution under conditions suff...
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WO/2012/017928A1 |
Disclosed is a method for recovering nickel metal from nickel sulfide-containing sludge, wherein: nickel sulfide contained in nickel sulfide-containing sludge is oxidized into nickel sulfite and/or nickel sulfate by supplying air to the ...
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WO/2012/014685A1 |
Provided are: a process for producing ferronickel from a nickel sulfide material produced by a wet refining of a lateritic nickel ore or a scrap or a work-in-process material or from a mixed sulfide material containing nickel and cobalt....
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WO/2012/011205A1 |
The present invention addresses the problem of providing a method for separating and recovering nickel, cobalt and rare earth elements (RE) from positive- and negative-electrode active materials that constitute a nickel-hydrogen secondar...
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WO/2012/006660A1 |
A method for the pyrometallurgical processing of nickel-containing material using a fluxing composition comprising calcium.
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WO/2012/004284A2 |
The instant invention discloses a method for the valorization of spent catalyst from hydrocarbon processing slurry reactors as well as slurry flakes.
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WO/2011/162254A1 |
Disclosed are: a method for removing copper ions from a copper-containing nickel chloride solution, which can remove copper contained in the copper-containing nickel chloride solution with high efficiency; and a process for producing an ...
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WO/2011/147868A1 |
Cementation room comprising at least one cementation cell provided in order to carry out a cementation of at least one first metal in at least one first aqueous phase in contact with at least one second metal in the solid state comprisin...
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WO/2011/145644A1 |
Disclosed is a method that can reduce the production of substances adhering to the inner walls of reaction vessels, pipes, and the like without impairing the recovery rate of nickel, and that can reduce the frequency of performing operat...
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WO/2011/143764A1 |
A process for separating Co from Ni in an aqueous solution comprises subjecting the solution to extraction and using kinetic differences between Ni and Co in the extraction for achieving at least a partial separation of Co from Ni. This ...
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WO/2011/135991A1 |
Disclosed is a valuable metal recovery method that has excellent valuable metal selectivity and recovery efficiency, and furthermore is capable of reusing materials that were used in the recovery of a valuable metal. The valuable metal r...
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WO/2011/132693A1 |
By means of installation improvements specifically in a liquid-storage tank from among sulfidation installations at which a sulfidation reaction is performed in the hydrometallurgy of nickel oxide ore, the present disclosures reduce the ...
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WO/2011/129395A1 |
Disclosed is a plant for wet smelting of laterite nickel ore which can minimize stops of a processing facility even in the event of a serious trouble in the processing facility, the processing facility requiring a great deal of preparati...
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WO/2011/120127A1 |
In various aspects, the invention provides processes that use relatively low levels of acid to leach lean nickel ores, including processes that provide relatively high levels of extraction of nickel and cobalt from nickel laterite ores, ...
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WO/2011/114000A1 |
A hydrometallurgical method of processing nickel containing raw material such is provided. The raw material is leached in chloride-based leaching media in a process integrated with chlorine-alkali electrolysis, solvent extraction and ele...
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WO/2011/111407A1 |
Disclosed is a wastewater treatment method for selectively eliminating manganese from wastewater that is acidic due to sulfuric acid and contains aluminum, magnesium and manganese. The wastewater treatment method controls the precipitati...
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WO/2011/104798A1 |
Provided is a valuable-metal recovery method for recovering metals from lithium ion batteries using comparatively simple equipment and without using a cumbersome process. In said method, a positive electrode material from lithium ion bat...
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WO/2011/104436A1 |
The invention relates to the hydrometallurgical treatment of laterite ores in order to recover valuable metals. More specifically, the invention presented relates to a method for improving precipitation and solid-liquid separation in con...
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WO/2011/090086A1 |
"Urban ore" contains a plurality of metallic elements intermingled with one another, and given metallic elements are required to be separately recovered therefrom. However, the content of each element is very low, and it has been extreme...
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