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WO/2017/062096A1 |
The present invention discloses polythiol compositions containing dipentene dimercaptans and intermolecular sulfide compounds, as well as mining chemical collector compositions containing such polythiol compositions. Flotation processes ...
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WO/2017/059931A1 |
The invention relates to a method for recovering lithium from lithium-sulfur accumulators, wherein the accumulators are discharged, shredded, and pre-cleaned by sieves or screens to separate housing and electricity collector parts, the r...
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WO/2017/060568A1 |
The invention relates to an extraction arrangement comprising an extraction module (1; 1a, 1b, 1c) comprising an extraction section (2; 2a, 2b) having a pump (3; 3a, 3b) having a first inlet (4; 4a, 4b), a second inlet (5; a, 5b), and a ...
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WO/2017/054057A1 |
A method for recovering zinc from an aqueous ammoniacal ammonium carbonate zinc solution, the method comprising the steps of: Contacting the aqueous ammoniacal ammonium carbonate zinc solution with an organic solution of a zinc extractan...
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WO/2017/056626A1 |
Provided is a method for manufacturing nickel powder whereby a reduction in production efficiency due to abrasion of a flash vessel connected to a pressurized container can be suppressed when nickel powder is generated using the pressuri...
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WO/2017/058038A1 |
The present request describes a process to obtain metallic gold nanoparticles from an effluent containing sulfide, resulting from a bioremediation process of acid mine drainage (AMD) based on the use of sulfate-reducing bacteria. The dis...
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WO/2017/051117A1 |
The asbestos waste neutralization device (10) comprises: an acid tank (23); a vessel (16) containing a diluted acid solution, into which waste comprising asbestos is thrown, said acid solution neutralizing the asbestos waste; a filtratio...
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WO/2017/052021A1 |
The present invention relates to an apparatus for collecting useful metal ions from an aqueous solution and a method for collecting useful metal ions using the same, and provides an apparatus for collecting useful metal ions and a method...
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WO/2017/046543A1 |
The invention relates to a flotation agent of formula (I): A corresponding to a formula chosen from: (II), (III), and (IV) in which: - the group R represents a hydrogen atom or a linear or branched, saturated or unsaturated, C1-C4 alkyl ...
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WO/2017/048329A1 |
Disclosed herein is a method and apparatus that uses a brine from a well that is used to both generate electricity and recover valuable minerals present in the brine. The method and apparatus uses a hydrophobic membrane to separate water...
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WO/2017/047915A1 |
The present invention relates to an apparatus for treating fly ash, and a method for treating fly ash by using the same. In one specific embodiment, the apparatus for treating fly ash comprises: a boiler part for burning coal to discharg...
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WO/2016/178073A3 |
The invention is related to a method for the treatment of sludge containing iron and between 4.5% to 12% by weight of zinc. This method includes a leaching step wherein leaching agents include hydrochloric acid and chlorate, and wherein ...
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WO/2017/043668A1 |
The present invention provides a method for efficiently leaching copper from copper sulfide ore by separating and recovering iodine, and iron(III) ions to be used are regenerated by a heap of stacked ore in the method for leaching copper...
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WO/2017/044178A1 |
A method for the electrolytic production of pure copper from copper-containing compounds dissolved in a high-temperature bath of molten salts which function as an electrolyte in an electrolytic cell. An electric current is passed between...
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WO/2017/037625A1 |
The present invention relates to the recycling process of electronic waste resources to recover metals of value. More particularly, it relates to eco-friendly yet efficient hydrometallurgical processes to recover metal values from waste ...
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WO/2017/038205A1 |
Provided is a scandium oxide manufacturing method, which is capable of manufacturing scandium oxide with limited sulfur component content when obtaining scandium oxide from scandium oxalate that comprises sulfur-containing compounds as i...
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WO/2017/040031A1 |
A method of recovering metals from electronic waste comprises providing a powder comprising electronic waste in at least a first reactor and a second reactor and providing an electrolyte comprising at least ferric ions in an electrochemi...
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WO/2017/035675A1 |
The invention relates to a method for removing arsenic from materials with a high arsenic and/or selenium content, comprising adding the material to a pressure reactor, adding an alkaline leaching solution, adding an oxidising gas, mixin...
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WO/2017/038589A1 |
Provided is a production process by which a so-called high-purity nickel powder made up of coarse particles and reduced in the content of impurities, in particular, in sulfur content, is produced from a nickel sulfate ammine complex solu...
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WO/2017/032164A1 |
Disclosed is a method for starting water spraying in copper sulphide ore heap bioleaching, comprising the following steps: 1) judging the feasibility of starting copper sulphide ore water spraying: if the acid production potential of the...
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WO/2017/033594A1 |
Provided is a method for efficiently removing manganese from a manganese-containing wastewater while minimizing the use amount of chemicals including a neutralizer. The method for manganese removal according to the present invention is f...
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WO/2017/034009A1 |
The present invention addresses the problem of providing a useful method for separating light rare earth elements and heavy rare earth elements. As a means for solving the problem, the method of the present invention is characterized by ...
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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/2017/035061A1 |
Disclosed are methods for the reduction of impurity metals from a refinery electrolyte solution. Certain methods comprise contacting a refinery electrolyte solution comprising an impurity metal with a phosphate ester having a structure r...
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WO/2017/035344A1 |
Systems and methods for recovering and concentrating rare earth elements from seabed sediment deposits using seabed excavators and shipboard processing systems.
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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/2017/031949A1 |
A method for leaching low-grade lead-zinc oxide ores by means of electrooxidation comprises the following steps: A, pulping: carrying out crushing and ball milling on the low-grade lead-zinc oxide ores, and adding water to mix the ores t...
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WO/2017/030937A1 |
Disclosed herein are systems and methods in which ion-selective separation and multi-stage osmotic separation is used to produce multivalent-ion-rich process streams. According to certain embodiments, multiple separations may be used to ...
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WO/2017/029651A1 |
Method and apparatus thereof to separate aluminum from aluminum- containing source material, such as fly ash, includes preparing a slurry of the source material and water in an agitation tank and adding a leaching reactant to the slurry ...
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WO/2017/025834A1 |
The invention provides a method for recycling precious metals from waste materials characterized by steps of providing a powder or a waste material concentrate, digesting it under oxidizing conditions, qualitative and quantitative analys...
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WO/2017/025547A1 |
The invention relates to a process for extracting tantalum from an acid aqueous phase A1 comprising at least one step comprising the bringing of the aqueous phase A1 into contact with a phase A2 that is not miscible with water, then the ...
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WO/2016/210051A8 |
The recovery of noble metal(s) from noble-metal-containing material is generally described. The noble metal(s) can be recovered selectively, in some cases, such that noble metal(s) is at least partially separated from non-noble-metal mat...
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WO/2017/018364A1 |
[Problem] To provide a method allowing for the separation of rhenium from a solution including rhenium by a simple procedure and in a shorter amount of time, and to provide a method for selectively recovering rhenium from a solution incl...
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WO/2017/017647A1 |
A process for recovery and recycling of materials constituting membranes for separation of hydrogen envisages a leaching stage where the tubular-membrane module is leached in an acid solvent for maximum dissolution of silver and palladiu...
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WO/2017/017193A1 |
The invention relates to novel dissymmetric N,N-dialkylamides having formula (I), wherein R represents a straight or branched alkyl group at C8 to C15. The invention also relates to a method for synthesising said N,N-dialkylamides, and t...
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WO/2017/019181A1 |
The present disclosure provides Molecularly Imprinted Polymer (MIP) technology for selectively sequestering one or more target molecules from chemical mixtures. Also disclosed herein are MIP beads and methods of making and using thereof.
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WO/2017/012710A1 |
The invention relates to the method step of reducing trivalent iron in the production of titanium dioxide according to the sulfate method. According to the invention, after the removal of the poorly soluble decomposition residue, the red...
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WO/2017/008097A1 |
The invention discloses a measurement apparatus for measuring a volume of a desired solid component in a sample volume of a solid-liquid slurry. The sample volume of the slurry is received into a receptacle and screened to separate out t...
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WO/2017/010437A1 |
The present invention is characterized by comprising: an acid leaching step for obtaining a leach liquid by causing leaching of, by means of an acid, a metal mixture at least containing vanadium and at least one type of a divalent or tri...
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WO/2017/011368A1 |
Systems and methods for recovering rare earth metals from rare earth metal-containing magnets includes fragmenting or commutating the magnets, contacting the commutated magnets with a mixture of low molecular weight carboxylic acids such...
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WO/2017/004694A1 |
Process to recover copper from a process feed including one or more feed components containing a base metal sulphidic feed, iron, copper and arsenic. Process feed and aqueous quench solution are introduced to a pressure oxidative leachin...
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WO/2017/004590A1 |
Metal-binding proteins, such as metallothionein proteins, are disclosed for removing metals from substrates in need of having such metals removed therefrom. Specifically, metallothionein proteins according to SEQ ID NO:1, 2, or 9-20 are ...
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WO/2016/210051A1 |
The recovery of noble metal(s) from noble-metal-containing material is generally described. The noble metal(s) can be recovered selectively, in some cases, such that noble metal(s) is at least partially separated from non-noble-metal mat...
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WO/2016/209093A1 |
The present invention provides a method of chromium separation from sewage, including tanning sewage, as a result of a double exchange reaction yielding insoluble salts of chromium and organic acids which are very easy to filtrate and en...
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WO/2016/208489A1 |
Provided is a method for producing scandium oxide that makes it possible to produce scandium oxide having a suppressed sulfur content when obtaining scandium oxide from scandium oxalate containing sulfur compounds as impurities. The meth...
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WO/2016/209178A1 |
The invention comprises leaching lateritic ores used during the production of nickel-cobalt, or leaching of secondary scandium sources in which scandium is enriched within the precipitate during a pH controlled solution purification proc...
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WO/2016/202257A1 |
Provided are a method for recovering phosphorus and a rare earth from a rare earth-containing phosphate ore, and a substance containing a rare earth phosphate. The method comprises: step S1, leaching the rare earth phosphate ore by using...
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WO/2016/201558A1 |
A method for hydrometallurgical extraction of rare earth elements and niobium from a an ore or a flotation concentrate containing rare earth elements, niobium, iron and alkali earth metals, the method comprising removal of the alkali ear...
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WO/2016/197244A1 |
A dry slag atomization is applied in upgrading slags. The atomized slag may be subjected to a leaching process to produce upgraded slag. In the case of titania-rich slags, conveniently, the titanium in the atomized slag has been oxidized...
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WO/2016/198872A1 |
The present application relates to the electrochemical extraction of lead (Pb) from a lead- containing material using a deep eutectic solvent. This is of particular use in the recycling of the lead-based materials that result from energy...
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