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Matches 151 - 200 out of 3,778

Document Document Title
WO/2013/180785A2
A method for recycling AglnCd control rod absorber bar material from a used control rod from a nuclear power plant includes sectioning AglnCd absorber bar from a used control rod into a first section and a second section, the first secti...  
WO/2013/180785A8
A method for recycling AglnCd control rod absorber bar material from a used control rod from a nuclear power plant includes sectioning AglnCd absorber bar from a used control rod into a first section and a second section, the first secti...  
WO/2013/171861A1
The present invention provides an extraction solvent for extracting metallic elements that is characterized in that: the total concentration of chlorine (Cl2) and hypochlorous acid (HOCl) is from 20 to 1000 ppm; chlorine (Cl2) and hypoch...  
WO/2013/167714A1
The cost of precious metals, such as gold, makes recovery or recycling of these materials economically viable and desirable. Disclosed herein is a method of recovering gold from waste sources thereof, in particular waste electrical goods...  
WO/2013/162118A1
The present invention relates to a method for concentrating and recovering noble metals from printed circuit boards of discarded mobile phones and catalysts of discarded cars using discarded nonferrous slag, which is industrial waste dis...  
WO/2013/152424A1
A process for the extraction of gold from a gold-bearing ore or concentrate, comprising the steps of leaching the gold-bearing ore or concentrate with a lixiviant of hydrochloric acid and magnesium chloride at atmospheric pressure at a t...  
WO/2013/145849A1
Silver and metal adsorbed by activated carbon are effectively eluted. A method for eluting silver and metal adsorbed by activated carbon, in which metal and silver are eluted from activated carbon that has adsorbed at least metal and sil...  
WO/2013/131453A1
A method for recovering ruthenium from waste catalyst of aluminum oxide loaded with ruthenium comprises the following steps: drying, roasting and cooling the waste catalyst of aluminum oxide loaded with ruthenium; grinding into black pow...  
WO/2013/129017A1
The purpose of the present invention is to recover, at a low cost and efficiently, gold adsorbed on activated carbon. A gold recovery method which includes a step of subjecting gold adsorbed on activated carbon to elution to obtain a con...  
WO/2013/108478A1
The purpose of the present invention is to efficiently recover gold in metal sulfide ores at low cost. This gold recovery method uses an acidic leaching solution including a chloride ion and/or a bromide ion as an anion and copper and ir...  
WO/2013/090981A1
A process for smelting a silver-rich ore or concentrate that comprises an ore or concentrate that contains at least 1% silver by weight, more preferably form 2% to 8% silver by weight. The process comprises feeding the silver-rich ore or...  
WO/2013/079804A1
Method for processing ash, particularly fly ash, in which method several elements are separated from the ash. In the method both noble metals and rare earth elements are separated.  
WO/2013/082614A1
Discloses a hydrometallurgical process and system for the recovery of precious metals; specifically palladium, rhodium, and platinum metals, at high purity and with limited waste and environmental fouling.  
WO/2013/051965A1
´╗┐The invention relates to a method for separating hydrogen-absorbing metals from solutions, and also to an apparatus for carrying out said method. A reduction is undertaken using hydrogen generated in a solution, wherein the reduction ...  
WO/2013/051715A1
Provided are: a palladium separating agent which is capable of separating palladium ions in a short time with high selectivity from solutions that contain palladium ions at low to high concentrations; and a method for separating palladiu...  
WO/2013/049886A1
A process for oxidising milled ore for recovery of noble metals including gold, silver and the platinum family, and other metals including copper. An acidic (pH under 0.7) aqueous oxidising solution includes chloride and bromide ions and...  
WO/2013/044380A1
The invention relates to a method for the extraction of precious metals, using halogens. It has been found that introducing halogens in the reactor in the form of hypohalites rather than free halogens simplified greatly the recycling of ...  
WO/2013/042340A1
According to a metal recovery method, it is possible to recover with high efficiency metals (metal ions) contained in a solution by culturing red algae belonging to the order Cyanidiales in a solution wherein the cell concentration there...  
WO/2013/035301A1
A precious-metal adsorbent is chemically modified by a functional group including an N atom and/or an S atom, and is formed from one of an alga, a residue of the alga, a substance obtained by treating the alga with a strong acid, and a s...  
WO/2013/029785A1
A method for removing metal and/or precious metal-containing depositions from substrates, wherein said substrate is subjected to treatment with an organo amine protectant component P and an inorganic active component A. Component P may b...  
WO/2013/023297A1
The invention relates to modifications of a non-ammoniacal thiosulfate process of leaching precious metals (e.g. gold or silver) from precious metal-containing ores. The process involves leaching the ore with an aqueous lixiviant contain...  
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...  
WO/2012/171486A1
Disclosed is a method suitable for efficiently producing silver nanowires with high aspect ratio. In this method, silver nanowires with aspect ratio of more than 300 and purity of more than 80% are produced through an acid compound media...  
WO/2012/170291A2
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.  
WO/2012/161216A1
The present invention provides a complex which is produced by reductive bacteria during the culturing process and consists of a culture medium component and a metal-reduction product, and also provides uses thereof. The complex according...  
WO/2012/152408A1
The method is used to obtain metals, noble metals, and rare earth metals from scrap. The aim of the invention is to provide a method that allows an efficient recovery even from electronic scrap. This is achieved in that the scrap and car...  
WO/2012/151721A1
A wet process for pre-treating carbonaceous refractory gold concentrate ores comprises the following steps: grinding the gold concentrate ores to a granularity of -0.074 mm with a mass content of 90-100% by ore mill, then adjusting the s...  
WO/2012/149631A1
The present invention relates to methods for recovering precious metals including silver and gold, rare metals including indium and gallium, base metals including copper, lead and zinc or a combination of precious, rare and base metals f...  
WO/2012/149264A1
The present invention relates to a process for recovery of a precious metal catalyst from an organosilicon product-containing liquid reaction medium containing precious metal catalyst.  
WO/2012/141607A1
The present invention relates to a process for chemical extraction of gold and silver from low grade and refractory pyritic concentrates containing minimum 1 ppm Au, by their leaching in enamelled cast iron reactors, steel plated lead or...  
WO/2012/140128A1
The invention relates to the provision of noble metal- containing mixtures for a process for processing them by heating the mixture, preferably for processing them by means of an ashing process. This provision is characterized by the fol...  
WO/2012/124565A1
Provided is a method in which predetermined metals of platinum group metals existing in a copper phase are unevenly distributed in the copper phase. To increase the ratio of rhodium distributed in a molten copper phase, additional copper...  
WO/2012/121495A3
The present invention relates to a method for recovering a precious metal (palladium) after a polyketone polymerization reaction, and comprises the steps of: (a) generating a first reaction waste liquid by filtering the polyketone produc...  
WO/2012/121495A2
The present invention relates to a method for recovering a precious metal (palladium) after a polyketone polymerization reaction, and comprises the steps of: (a) generating a first reaction waste liquid by filtering the polyketone produc...  
WO/2012/119174A3
The invention relates to a metal separation method, comprising the following steps: introducing the metal to be separated together with a liquid into a reactor; adding process gas that reacts with the metal to be separated and blending s...  
WO/2012/121496A2
The present invention leaches platinum groups from industrial waste containing platinum group metals (platinum (Pt), ruthenium (Ru), osmium (Os), rhodium (Rh), iridium (Ir), palladium (Pd)), adsorbs onto an absorbent platinum group metal...  
WO/2012/121496A3
The present invention leaches platinum groups from industrial waste containing platinum group metals (platinum (Pt), ruthenium (Ru), osmium (Os), rhodium (Rh), iridium (Ir), palladium (Pd)), adsorbs onto an absorbent platinum group metal...  
WO/2012/114165A1
This invention relates to an energy efficient process for recovering Base Metals and Precious Metals from ore or concentrate, the process including the steps of constructing a heap (10) comprising ore and/or concentrate containing Base M...  
WO/2012/111563A1
Provided is a method that is for recovering platinum group elements from an SiC-based substance and that reduces the temperature at which the SiC-based substance homogeneously melts in slag. The method, which is for recovering platinum g...  
WO/2012/111542A1
According to the present invention, it becomes possible to collect ruthenium or a ruthenium compound, which is expensive, with high efficiency even from an aqueous solution containing a water-soluble salt, a lower alcohol, an organic aci...  
WO/2012/108522A1
Provided is a method for recovering PGM from a material to be processed that contains PGM. Specifically provided is a method for recovering PGM from a material to be processed that contains PGM, which comprises: a reduction smelting step...  
WO/2012/104806A1
This invention relates to a process in which a Platinum Group Metal (PGM)-rich residue from a BMR (Base Metals Refinery) process is subjected to a high temperature roast to remove contaminants, typically volatile elements (for example Se...  
WO/2012/099009A1
Provided is a method for suppressing distribution of PGM to Cu2O slag in oxidation smelting in a method for recovering PGM. Specifically provided is a method for recovering PGM, which comprises: a reduction smelting step wherein a member...  
WO/2012/091125A1
Provided are a method for collecting precious metals from a solution containing precious metal ions, an extractant or adsorbent used therefor, and a back extractant or a desorbent. Precious metals are obtained by subjecting a solution co...  
WO/2012/079129A1
Disclosed is a process for extracting gold ions from an aqueous phase containing gold ions. The process comprises contacting the aqueous phase with an extractant phase consisting of or comprising an ionic liquid (IL) under liquid-liquid ...  
WO/2012/080558A1
The present invention concerns a process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process compri...  
WO/2012/079283A1
Disclosed are a mineral-dressing agent for noble metals and preparation method thereof. The method comprises introducing mixed potassium ferrocyanide and urea into a reactor, adding pH adjusting agent while being subjected to slow heatin...  
WO/2012/078768A1
A washer for a particulate material comprises, in accordance with some embodiments of the invention, a chamber 20, 220 adapted for retaining a fluidization medium 130; an inlet 22, 222 adapted for receiving a feed containing particulate ...  
WO/2012/078274A2
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.  
WO/2012/076981A1
A method and system are provided in which a gold and/or silver-collecting resin-in-leach or resin-in-pulp circuit comprises both co-current and counter-current sections, specifically in thiosulfate leach systems.  

Matches 151 - 200 out of 3,778