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WO/2014/106683A1 |
The present invention relates to a method and an arrangement for pressure and temperature let down of autoclave discharge slurry (106), in particular in pressure oxidation or high pressure acid leach of metal containing ore. The method o...
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WO/2014/107394A1 |
A method leaches metal sulphide ores to form a metal-bearing material. Sulfide ores, such as copper or gold ores, are contacted with a leaching solution containing industrial enzymes comprising cupredoxins such as amicyanin, plastocyanin...
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WO/2014/104920A1 |
The invention relates to metallurgy, in particular, acid methods for producing alumina, and can be used for processing a low grade aluminium-containing raw material. The method for producing alumina comprises treating aluminium-contai...
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WO/2014/105679A1 |
A leaching promoter is utilized during the heap leaching of sulphide ores. The promoter contains a sulfide/ferrous oxidizing bacteria and a sulfide/ferrous oxidizing promoting material comprising at least one of (i) quorum sensing molecu...
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WO/2014/103397A1 |
Provided is a method that enables high-purity perrhenic acid to be produced from crude rhenium sulfide using a dry process. This method for producing an aqueous solution of perrhenic acid includes: 1) a step in which roasting is performe...
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WO/2014/103398A1 |
Provided is a method that enables high-purity perrhenic acid to be produced from crude rhenium sulfide using a dry process. This method for producing an aqueous solution of perrhenic acid includes: 1) a step in which a first roasting is ...
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WO/2014/100910A1 |
The invention relates to the use of oxygenated or polyoxygenated weak acids, or minerals or compounds that generate same, or solid or liquid waste from plants that produce oxygenated or polyoxygenated weak acids and derivatives thereof, ...
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WO/2014/094091A1 |
The present invention relates to a method and apparatus for bioleaching primary ores containing copper, nickel, zinc, cobalt, molybdenum, uranium, precious metals, flotation wastes from the production of sulfide concentrates of said meta...
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WO/2014/094793A1 |
An auxiliary stirrer tank for a solvent extraction system includes a tank that receives immiscible liquids for agitating together to facilitate mass transfer of a material and a shaft positioned within the tank that is rotatable within t...
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WO/2014/094130A1 |
A product is provided for binding heavy metals in. Specifically, the substance is a derivative of graphite, namely graphene oxide nano-platelets (GO). In another embodiment of the present invention, a product comprising GO grafted with m...
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WO/2014/096550A1 |
The invention relates to a method of recovering energy and water from pressure oxidation flash steam comprising a step wherein a first flash steam directly obtained from a flash vessel is contacted with a first recirculating condensate h...
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WO/2014/094045A1 |
A mobile ore slurrying apparatus (10) comprising: A feeding unit (12); a processing unit (14); and a pumping apparatus (16), wherein the processing unit (14) is separated into a slurry tank section (30) and a water tank section (32), suc...
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WO/2014/094037A1 |
A method for producing a solid scandium-containing material comprises providing an aqueous solution containing carbonate ions, carbamate ions, hydrogen carbonate (HC03 +) ions, or mixtures thereof, contacting the aqueous solution with a ...
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WO/2014/096545A1 |
The invention relates to a method for leaching the metals while granulating molten matte, comprising the steps of feeding a molten matte as a falling stream into a granulation chamber (30), spraying a liquid jet on the stream of molten m...
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WO/2014/089614A1 |
The present invention relates to a process, method and plant for recovering scandium and ions containing scandium using an ion exchange resin from a feed stream. The feed stream may be, but is by no means limited to, a leach liquor or le...
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WO/2014/092133A1 |
Provided are: a separating agent and a platinum ion separation method that enable platinum ions to be separated from a solution containing low to high concentrations of platinum ions in a short time and with high selectivity; and a separ...
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WO/2014/090260A1 |
A zinc precipitation circuit is disclosed. The circuit comprises a vessel configured to carry clarified pregnant solution comprising a dissolved precious metal, the vessel further comprising means for delivering zinc particles; a precipi...
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WO/2014/093584A1 |
A hydrometallurgy circuit for the recovery of a metal is disclosed. The circuit may comprise a crushing or grinding device configured to pulverize feed ore and produce crushed ore; a first separator configured to separate the crushed ore...
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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/2014/085903A1 |
A process for leaching a value metal from a titaniferous ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising magnesium chloride and hydrochloric acid is disclosed. Iron and ti...
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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/2014/082113A1 |
A method (10) for the hydrometallurgical processing of rare earth and uranium containing ores and concentrates, the method comprising the steps of: (i) Passing a rare earth ore to a concentration step in which is produced a rare earth ph...
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WO/2014/082461A1 |
A monazite ballast separation and recovery method comprises the following steps: acid leaching, filter pressing, washing, extracting valuable components, and residue processing. In the acid leaching step, the ballast is leached at low te...
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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/2014/085440A1 |
Embodiments of a method of making a sorbent comprise providing a monolith having a plurality of internal channels, providing at least one silica coating onto walls of the plurality of internal channels by applying a silica coating soluti...
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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/2014/080408A3 |
A system and method are disclosed for mixing a suspension. The suspension may optionally have a low liquid viscosity. The suspension may, optionally, include a metallurgy solvent extraction (SX) mixture. The system and method may be at a...
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WO/2014/075148A1 |
A heap of a material to be leached to recover a valuable metal from the material includes an electromagnetic heating system to generate heat in situ in the heap.
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WO/2014/076544A1 |
In an example of a method for recovering lead from a lead material including lead sulfide, methane sulfonic acid is selected as a leaching acid for the lead material. The lead material is exposed to a solution including the methane sulfo...
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WO/2014/075173A1 |
There are provided processes for purifying aluminum ions. Such processes comprise precipitating the aluminum ions under the form of AI(OH)3 at a first pH range; converting AI(OH)3 into AICI3 by reacting AI(OH)3 with HCI and precipitating...
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WO/2014/071513A1 |
A process is disclosed for treating a Bayer process waste comprising a slurry containing bauxite residue and dissolved aluminium. The process comprises supplying the waste to a settling area to cause the bauxite residue to settle out of ...
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WO/2014/071510A1 |
The present disclosure broadly relates to a novel process for the recovery of rare earths oxides from phosphors, fluorescent lamps and light bulbs, cathode ray tubes and other industrial wastes containing rare earths elements in the form...
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WO/2014/074985A1 |
A method of leaching a copper bearing sulfide mineral slurry containing chalcopyrite is described. The method comprises the steps of providing a slurry having chalcopyrite particles therein, exposing the slurry to an acidic leach solutio...
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WO/2014/074029A1 |
The invention relates to a technique for recovering rare earth metals from solid minerals and also from by-products of solid mineral processing. The method for recovering rare earth metals involves the acid leaching of solid minerals and...
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WO/2014/069463A1 |
Provided is a method for collecting silver having high purity from an acidic aqueous solution containing iron and/or zinc and silver using a simple apparatus and with high efficiency. A method for collecting silver, comprising separating...
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WO/2014/068642A1 |
The purpose of the present invention is to provide a metal refining device that can improve the recovery efficiency in metal refining. The metal refining device is a metal refining device that recovers metal material constituting an elec...
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WO/2014/069474A1 |
Provided are: a graft copolymer which enables a large amount of introduction of an adsorptive functional group that adsorbs a metal and the like; a method for producing this graft copolymer; and an adsorbent material which uses this graf...
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WO/2014/066668A1 |
Methods are described for the recovery and separation of the rare earth elements from ore, tailings, or any other solid source. The methods described utilize mechanochemical methods for creating chemical compounds and complexes which are...
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WO/2014/066169A1 |
An improved method for treating manganese-containing materials, such as nodules recovered by undersea mining, including reacting the materials with ammonia, and leaching with a mineral acid, and to methods for recovering valuable constit...
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WO/2014/066727A1 |
Disclosed is a method and apparatus for recovering scandium values in a metal-bearing effluent, e.g., from a fluidized bed chlorination process, without using environmentally persistent organic extractants and solvents. The disclosed pro...
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WO/2014/064530A1 |
A method to recover gold lost in roaster calcine-leach tailings, due to the formation of cyanide refractory compounds or morphologies during the roasting process. The process can include acid leaching of magnetic concentrate from roaster...
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WO/2014/059461A3 |
The disclosure relates to a beneficiation process for low grade uranium ore, wherein the process comprises a primary beneficiation stage comprising: wet scrubbing the low grade uranium ore to separate the low grade ore into a fine fracti...
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WO/2014/062289A1 |
A process for the recovery of gold from a gold-bearing aqueous filtrate, the process comprising the steps of: (A) Contacting the aqueous filtrate with dibutyl carbitol (DBC) in a two-stage solvent extraction process to remove the gold fr...
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WO/2014/058312A1 |
The present invention relates to a method for extracting metal and/or metalloid ions from an aqueous medium, comprising the steps of: a) mixing the aqueous medium with an ionic liquid comprising an aliphatic carboxylate anion having at l...
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WO/2014/056034A1 |
A method for recovery of gold from a gold-containing, refractory pyrite-rich ore or concentrate is disclosed. The method results in the production of a high grade, gold-containing solid intermediate concentrate. One embodiment comprises ...
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WO/2014/057922A1 |
Provided is a method whereby rare earth elements can be separated from a rare earth magnet in a simple manner with a high separation rate, and a separating device for carrying out said method. The rare earth element separation method acc...
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WO/2014/053705A1 |
The invention relates to a method of recovering silver and a method of controlling a leaching process for recovering silver from a direct zinc leach residue, an apparatus for recovering silver from a direct zinc leach residue, a control ...
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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/2014/047761A1 |
Disclosed is a method for producing a high-purity nanometer zinc oxide from low-grade zinc oxide ore by an ammonia process. The method comprises: taking slaked lime of 3-5% mass of the low-grade zinc oxide ore for activation before leach...
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