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WO/2013/049886 |
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...
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WO/2013/051715 |
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...
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WO/2013/051965 |
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 ...
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WO/2013/044380 |
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 ...
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WO/2013/042340 |
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...
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WO/2013/035301 |
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...
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WO/2013/029785 |
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...
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WO/2013/023297 |
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...
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WO/2013/016813 |
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/2012/171486 |
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...
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WO/2012/170291 |
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/2012/161216 |
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...
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WO/2012/151721 |
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...
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WO/2012/152408 |
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...
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WO/2012/149631 |
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...
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WO/2012/149264 |
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.
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WO/2012/141607 |
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...
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WO/2012/140128 |
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...
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WO/2012/124565 |
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...
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WO/2012/121495 |
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...
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WO/2012/121496 |
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...
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WO/2012/121496 |
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...
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WO/2012/121495 |
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...
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WO/2012/114165 |
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...
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WO/2012/111563 |
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...
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WO/2012/111542 |
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...
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WO/2012/108522 |
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...
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WO/2012/104806 |
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...
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WO/2012/099009 |
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...
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WO/2012/091125 |
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...
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WO/2012/080558 |
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...
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WO/2012/079283 |
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...
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WO/2012/079129 |
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 ...
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WO/2012/076981 |
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.
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WO/2012/078020 |
A method for leaching valuable metals from ore or one or more minerals that do not oxidise easily and can be reduced, comprises reducing the ore or one or more minerals in contact with an acid medium with complexing agents for sulphur an...
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WO/2012/078768 |
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 ...
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WO/2012/078283 |
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/2012/078274 |
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/2012/078275 |
Nanomaterial preparation methods, compositions, and articles are disclosed and claimed. Such methods can provide nanomaterials with improved morphologies and reduced nitric oxide co-production relative to previous methods. Such materials...
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WO/2012/074255 |
The present invention pertains to an apparatus for recovering precious metals and components from a PCB substrate, in which the apparatus comprises: a rotating unit which includes a PCB substrate fixed to the rotating unit with electroni...
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WO/2012/074255 |
The present invention pertains to an apparatus for recovering precious metals and components from a PCB substrate, in which the apparatus comprises: a rotating unit which includes a PCB substrate fixed to the rotating unit with electroni...
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WO/2012/071342 |
The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, wi...
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WO/2012/071342 |
The present invention is directed to a precious metal recovery process in which an acid sulfidic feed material is subjected to acid pressure oxidation and an alkaline sulfidic feed material is subjected to alkaline pressure oxidation, wi...
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WO/2012/060417 |
Provided are: a capsule for non-ferrous metal collection that can collect a non-ferrous metal; and a method for collecting a non-ferrous metal using same. The capsule for non-ferrous metal collection comprises capsule contents and a cove...
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WO/2012/053915 |
The present invention relates to a process of gold and copper recovery from gold-containing copper ores obtained from mixed oxide-sulfide copper ore bodies by a series of flotation stages. More specifically, the present invention relates...
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WO/2012/034255 |
A method for extracting gold coated by gangue comprises the following steps: grinding and classifying gold ore to obtain ore pulp; oxidizing and decomposing sulphide minerals and gangue in the ore pulp to fully expose and dissociate gold...
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WO/2012/031379 |
A method for extracting gold through low-temperature roasting is provided. The method includes the following steps: feeding the material to be roasted into a roasting furnace through feeder, uniformly supplying gas for the material layer...
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WO/2012/031194 |
Methods and compositions are described for preparing metal salts and selectively separating metals from substrates and other metals. The methods can include a thionyl reagent that reacts with a metal in a solution to produce a metal salt...
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WO/2012/029379 |
A high purity platinum recovery method for obtaining a platinum sponge by dissolving a platinum alloy containing ruthenium in aqua regia, removing the residue and then reacting the acid wherein platinum is dissolved and an ammonium chlor...
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WO/2012/024603 |
Processes for recycling electronic components removed from printed wire boards, whereby precious metals and base metals are extracted from the electronic components using environmentally friendly compositions. At least gold, silver and c...
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