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Matches 51 - 100 out of 8,810

Document Document Title
WO/2017/099941A1
Leaching aids, for example, when present in a leaching solution, and methods of using the leaching aids. The leaching aids can include one or a combination of compounds. The method of using the leaching aids can include a process of reco...  
WO/2017/096470A1
An ionic liquid of formula (I) is provided. A method of extracting one or more rare earth element and/or gallium from a matrix comprising the step of contacting the matrix with this ionic liquid is also provided.  
WO/2017/098466A1
The method of recovering copper from sulfide ores with copper and iron, comprises the steps of reacting, in a reaction vessel, a copper-containing sulfide ore with sulfur dioxide gas to form elemental sulfur, an iron oxide and a copper s...  
WO/2017/094308A1
Provided is a sulfurizing agent removal method that effectively removes dilute sulfurizing agents such as hydrogen sulfide from large volume solutions more efficiently than in the past. This sulfurizing agent removal method is a method f...  
WO/2017/096209A1
Lead is recycled from lead paste of lead acid batteries in a process that employs alkaline desulfurization followed by formation of plumbite that is then electrolytically converted to pure lead. Remaining insoluble lead dioxide is remove...  
WO/2017/091552A1
Collector compositions C for mineral flotation, which include at least one of a hydroxamic acid A, and/or a salt S of a hydroxamic acid A solubilized in a water-soluble organic solvent L, and processes for using same for recovering sulfi...  
WO/2017/090784A1
The present invention relates to an eco-friendly zinc smelting method, and provides a method for treating zinc ferrite, the method comprising the steps of: generating a fumed metal oxide, sulfite offgas, and eco-friendly clean slag throu...  
WO/2017/085404A1
The present invention relates to a method for separating and purifying niobium and tantalum from a basic aqueous solution containing niobium and tantalum. Said method is characterized in that it includes the following steps: a) placing a...  
WO/2017/085312A1
The invention relates to an organic material which includes a solid polymer substrate onto which molecules having the following general formula (I) are grafted: Formula (I) in which: m = 0, 1 or 2; R1 and R2 = a saturated or unsaturated,...  
WO/2017/086497A1
An embodiment of the present invention provides a method for recovering gold, the method comprising: (a)a step for dissolving a metal-containing raw material in an acidic solution to prepare a metal chloride mother liquor, and then filtr...  
WO/2017/081802A1
This method for separating molybdenum separates molybdenum from an acid solution containing copper ions, ferrous ions, and molybdenum ions, wherein ferrous ions in the acid solution are oxidized and the pH of the acid solution is adjuste...  
WO/2017/079043A1
A method of removing components from circuit boards includes the steps of placing in a chamber a plurality of circuit boards having components secured to the board by meltable solder; heating a liquid to a temperature above the melting p...  
WO/2017/071685A1
The invention relates to a method for the recovery of precious metal from materials containing precious metal, said method comprises the following steps of: A) bringing the materials containing the precious metal into contact with an oxi...  
WO/2017/072411A1
The present invention provides a method of recovering gold, and optionally silver, from gold-bearing, and optionally silver-bearing, double refractory raw material, comprising the steps of (a) leaching the said gold-bearing, and optional...  
WO/2017/070747A1
A method of leaching chalcopyrite ores includes the steps of forming agglomerates of fragments of chalcopyrite ores and silver and leaching the agglomerates with suitable leach liquor.  
WO/2017/075015A1
The present disclosure relates to hydrometallurgical methods for the isolation and recovery of platinum from rhenium-containing materials, and more particularly, from superalloys containing rhenium, platinum, and other metals. The disclo...  
WO/2017/069189A1
Provided is a hydrometallurgy device having strong-acid resistance and high-temperature resistance and being capable of efficiently dissolving an oxidizing agent in acid inside a reaction tank. The hydrometallurgy device 1 recovers metal...  
WO/2017/070102A1
Methods and systems for removing polar compounds from a metal-containing solution. According to various example aspects, methods and systems for removing hydrolysis byproducts and other polar compounds from a metal-loaded organic solutio...  
WO/2017/070111A1
Provided are methods and related compositions for separating immiscible organic and aqueous compositions. The methods include dispersing a discrete, insoluble filler in the organic composition, dispersing the organic composition into the...  
WO/2017/069223A1
[Problem] To provide a method for efficiently producing a high purity vanadium electrolytic solution from a combustion residue that includes uncombusted carbon and that has been emitted from a facility such as a refinery or a power plant...  
WO/2017/063076A1
Process to decrease silicon content of metal powder produced by hydrogen reduction from ammoniacal ammonium sulphate solutions containing metal ammine complexes, wherein metal (Me) is Ni, Co, or Cu. The process controls the precipitation...  
WO/2017/063099A1
The invention relates to hydrometallurgical methods for the extraction of copper minerals and products containing same, and in particular to a method which uses a novel reactive mixture in the steps of leaching and chemical curing. This ...  
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 ...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
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...  
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...  
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...  
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...  
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 ...  
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...  
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...  
WO/2017/035344A1
Systems and methods for recovering and concentrating rare earth elements from seabed sediment deposits using seabed excavators and shipboard processing systems.  
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°...  
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...  
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 ...  
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 ...  

Matches 51 - 100 out of 8,810