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JP2021110035A |
To provide a method for recovering gold and a method for analyzing gold, which enable reusing an organic solvent and achieving a high gold recovery rate without lowering the recovery rate.There is provided a method for recovering gold in...
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JP6907791B2 |
To provide a method for recovering iridium from water solution containing the iridium and a sulfuric acid, easily with high purity .In an iridium recovery method, a sodium-based neutralizer or a magnesium-based neutralizer is added to wa...
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JP6899672B2 |
To provide a method for recovering gold from ore or refining intermediate, capable of contributing reduction of treatment cost by reducing used amount of agents during cleaning of active charcoal or elution of gold with suppressing unint...
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JP6895177B2 |
A method for recovering a noble metal from a mixture that contains the noble metal with use of a noble metal recovering agent which contains at least one amine compound selected from among aromatic primary amine compounds and aliphatic p...
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JP6893621B2 |
The present application relates to methods for the simultaneous leaching and extraction of precious metals. For example, the present application relates to methods of leaching and extracting gold and/or palladium from a substance compris...
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JP6888965B2 |
To provide a method of treating a recycling raw material that separates aluminum and noble metal from each other in the recycling raw material and can recover the noble metal efficiently.A method of treating recycling raw material includ...
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JP2021515111A |
Provided is a method for selectively oxidizing one or more target metals in an alloy containing a target metal and a non-target metal. In this method, i) the alloy is melted, and the melted alloy is set to an oxidation potential that oxi...
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JP6886616B2 |
To provide a method for separating Pd and Se from each other, with high purity, in waste fluid containing metal, where Pd and Se can be collected as the metal by electrolysis.A method for separating Pd and Se from each other includes a m...
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JP6882654B2 |
To provide a method for efficiently separating a specific metal element from an acidic solution containing various metal elements by using an impregnated adsorbent having an extraction agent impregnated.Provided is a method for selective...
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JP6882110B2 |
To provide a method for excellently separating and recovering one or more kinds selected from the group consisting of Te, Ru, Pd, Pt and Rh from an acidic liquid containing Se generated in an electrolytic slime treatment step or the like...
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JP6882081B2 |
To provide a method for satisfactorily separating a platinum group from an acidic aqueous solution generated in e.g. a copper smelting electrolytic slime treatment step and recovering it.A method of recovering a precipitate containing a ...
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JP6882095B2 |
To provide a method for successfully separating and recovering one or more kind selected from a group consisting of Te, Ru, Pd, Pt and Rh from an acid liquid containing Se generated in an electrolytic slime treatment process of a copper ...
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JP2021075755A |
To provide a method of selectively and efficiently recovering only gold from a solution including gold dispensing with replenishment of an extraction agent to an organic phase, and recovery from an aqueous phase.A compound represented by...
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JP2021073375A |
To provide a method for recycling lithium-ion batteries.A method for recycling lithium-ion batteries, comprising the steps of: a) discharging the lithium-ion batteries; b) chopping the lithium-ion batteries into pieces to provide a mixtu...
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JP6864648B2 |
To provide a method of recovering valuable metals contained in the waste such as municipal refuse incineration or sludge at a low cost.A raw material D5 for refining valuable metals contains silver, which is obtained as solid by solid-ga...
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JP2021509932A |
The present invention relates to a metal recovery method using an adsorbent, a step of preparing a leachate containing a metal ion and a cyanide, wherein the metal ion contains a gold ion and a copper ion; and the cyanide concentration o...
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JP6853402B2 |
To recover a valuable metal by separating a substrate and a lead frame material contained in a secondary battery in a heat treatment of the secondary battery.A secondary battery is placed in an environment of 250°C to 550°C, and an ele...
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JP6849482B2 |
A method for recovering gold from an ore or a refining intermediate containing gold, comprising a step of contacting a gold-containing raw material obtained from the ore or the refining intermediate with an acidic solution containing a c...
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JP2021031728A |
To provide a noble metal recovery method in which the noble metal can be recovered directly from a noble metal ion-containing aqueous solution by a simple reduction treatment, which is excellent in terms of productivity and cost, and, in...
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JP6835577B2 |
To provide a method in which, from a hydrochloric acid acidic solution containing selenium and ruthenium and/or tellurium, selenium and ruthenium and/or tellurium are efficiently separated by precipitation, to recover valuable material.A...
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JP2021023862A |
To provide a method efficiently recovering a high quality noble metal from incineration ash.A noble metal recovery method from incineration ash includes: a first classification step to classify the incineration ash to a grain diameter of...
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JP6826996B2 |
It is an object of the present invention to provide an agent for selective metal recovery, a metal recovery method, and a metal elution method, by which selective recovery, elution, purification, or the like of a metal can be efficiently...
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JP6815242B2 |
To provide a method for reducing the treatment cost of the liquid to be treated, and a method for improving the recovery rate of silver .The present invention provides a method for treating an alkaline liquid to be treated, containing si...
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JP2021501259A |
The present invention relates to a method for recovering a precious metal from electronic waste. Specifically, bio-refining technology is used during the process. In a first aspect, the invention is a method of recovering one or more tar...
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JP6810887B2 |
To provide a separation recovery method favorable in separability of tellurium and platinum group elements, high in reaching rate of tellurium and platinum group elements and high in recovery rates thereof.A separation recovery method fo...
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JP2021001384A |
To solve the problem in which: in the conventional cyanide process of gold refining, cyan is not completely decomposed and waste liquid treatment is incomplete and environmentally problematic; and the gold recovery process also includes ...
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JP6802453B2 |
The invention relates to new support particles for repeated use in supporting metal bearing materials or mineral concentrates during leaching operations under highly corrosive conditions and elevated temperatures. The support particles a...
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JP6797396B2 |
To provide a metal extraction agent that allows metal to be extracted from acidic aqueous solution with high selectivity and is prevented from leaking to the acidic aqueous solution, a metal extraction method and a metal recovery method....
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JP6794253B2 |
The invention is directed towards methods and compositions for improving the processing of mineral tailings. The method involves diverting a side stream from the main line of a tailings process flow. Into this side stream an additive suc...
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JP6794853B2 |
To provide a metal scavenger containing a lignin derivative as the main component, where the metal scavenger can scavenge Ti, Mn, Fe, Co, Ni, Cu, Zn, Pd, Ag, Au, and useful metals classified as rare earth, present in a solution, and a me...
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JP6789757B2 |
To provide a recovery method of noble metal from a substrate covered by the noble metal, capable of conducting operations effectively without touch to a substrate to which an agent liquid is attached or the agent liquid by an operator.A ...
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JP6786280B2 |
To provide a means capable of quickly reducing concentration of impurity elements in a ruthenium-containing article with a relatively simple process and a means capable of recovering ruthenium quickly.There are provided a processing meth...
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JP6785243B2 |
The invention relates to the field of hydrometallurgy. The use thereof for recovering precious metals from electronic circuit boards of modern microelectronics, for example, from computer printed circuit boards, allows to increase the...
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JP6780448B2 |
To provide a recover method of high quality rhodium capable of recovering only rhodium powder without passing through a solvent extraction process.There is provided a recovery method of high quality rhodium powder for depositing and sepa...
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JP6774696B1 |
To provide a new production method suitable for mass production of high-purity Ir powder having a purity of 99.95% or more, which can reduce the amount of impurities. A method for producing Ir powder, which comprises a solution step, an ...
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JP6772036B2 |
To perform a proper processing corresponding to a particle size, to a residue obtained by removing a cement raw material from incineration ash of general domestic refuse.A residue obtained by removing a cement raw material from incinerat...
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JP6768218B2 |
To provide a method for recovering a platinum group metal together with tellurium that prevents shortening of the lifetime of an extraction solvent and efficiently separates tellurium and a platinum group metal.The method for separating ...
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JP6770547B2 |
To efficiently collect a silver anode.The method for collecting silver comprises: the melting step of inserting reduced silver in an oxidation furnace to melt it; the crush step of crushing litharge obtained in the melting step; the sepa...
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JP6762064B2 |
To provide a recovery agent and a recovery method capable of efficiently recovering rhodium at a low cost.Provided is a rhodium recovery agent having a chemical structure represented by formula (1) and insoluble to hydrochloric acid havi...
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JP6762867B2 |
To provide a removal method of an attachment of semiconductor production device parts, which can remove a multilayered film (attachment) where metal containing a plurality of kinds of precious metals attached to parts of a semiconductor ...
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JP2020152931A |
To develop a method of recovering a metal ion in an organic phase as a higher purity metal by simplifying an operation by removing a solution for a back extraction which is utilized by separating and recovering only a target metal from a...
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JP6757516B2 |
To provide a method for recycling and processing a copper-containing scrap containing copper, gold and silver as valuable metals, the method for recycling the copper-containing scrap configured to roast the scrap and sort out the valuabl...
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JP2020147811A |
To provide a precious metal recovery method, that can efficiently recover precious metals from Mitsuda (litharge=lead monoxide).The precious metal recovery method includes: a melting step of melting reduced silver in an oxidation furnace...
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JP6754137B2 |
To provide a metal recovery method which efficiently recovers metal of high purity from an integrated circuit package.A metal recovery method which recovers metal from an integrated circuit package having a metal wire and a lead frame in...
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JP2020132957A |
To provide a method of efficiently recovering silver by separating lead and tin, from a raw material including silver and also lead, tin, bismuth, antimony and the like.There is provided the silver recovery method for recovering silver b...
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JP2020132981A |
To provide a metal recovery method that can be applied when recovering various metals regardless of the type of metal to be recovered.In the metal recovery method, using a metal recovery implement having a storage unit made of a bag-shap...
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JP6744981B2 |
One aspect of the present invention provides a method for concentrating and recovering noble metals through a boron compound including, crushing a copper-containing material and preparing a mixture by mixing the same with a gold concentr...
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JP6742049B1 |
To provide a method for recovering valuable resources, which can suppress the occurrence of loss in recovering valuable resources. The method for recovering valuables of the present invention includes a preparatory step of preparing a ma...
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JP6739342B2 |
Liquid treatment apparatus comprises at least two chambers being first and second chambers through which a fluid can flow. The two chambers are separated by at least one choke nozzle which has an entrance in the first chamber and an exit...
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JP6737867B2 |
The invention relates to a metal sheet which has a plurality of parts to be plated, a frame part and connector parts connecting the parts to be plated and the frame part and in which the plurality of the parts to be plated, the frame par...
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