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JP6167915B2 |
To separate yttrium and zinc efficiently.A separation method of yttrium and zinc for separating yttrium and zinc from a nickel sulfate solution containing yttrium and zinc by solvent extraction, is provided. When solvent extraction is pe...
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JP6163392B2 |
To provide a recovery method of germanium capable of efficiently and inexpensively recovering germanium with high quality from a solution containing germanium with high recovery rate.A recovery method of germanium includes a germanium su...
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JP6149298B2 |
The invention relates to a method for the processing of metal scrap, in particular steel scrap, wherein the metal scrap material is treated with at least one fluid with a view to removing surface coatings before a spectroscopic analysis ...
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JP6134251B2 |
A process for stabilizing a sulfate and/or sulfide-rich waste material (comprising metal sulfide minerals) and sequestering CO 2 comprises exposing the material to a CO 2 -enriched gas mixture, reacting the CO 2 -enriche gas mixture with...
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JP6125913B2 |
To provide a method for efficiently recover copper and zinc from neutralizing precipitate containing copper and zinc.A method for recovering copper and zinc from neutralizing precipitate containing iron, copper, zinc, aluminum, and a sil...
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JP6123930B2 |
To provide a method for producing a zinc oxide ore from a raw material ore containing fluorine, in which the fluorine concentration in the zinc oxide ore can be reduced to an extremely low concentration while maintaining the productivity...
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JP6125458B2 |
To provide a method and an apparatus for separating and recovering a manganese component and a zinc component contained in a waste dry cell from the waste dry cell, and recovered substances.A manganese dry cell and/or an alkali manganese...
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JP6114381B2 |
Disclosed are a cadmium removing process in zinc-containing solution purification with better cadmium removing effect and a purification method of zinc-containing solution with desired purification effect. The cadmium removing process in...
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JP6113344B1 |
[Subject] A disposal method of advantageous steel dust, a zincky production method, and a production method of reduced iron are provided energy-wise [method / Waelz] and economically. [Means for Solution] A disposal method of steel dust ...
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JP6098499B2 |
To provide a method for manufacturing a zinc oxide ore, capable of stably holding a collection rate of zinc in a reduction roasting step at a desirable level in a site manufacturing a zinc oxide ore using a pellet consisting of steel dus...
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JP6099167B2 |
A zinc production method including a chlorination step 101 at which crude zinc chloride vapor 3 and an oxygen gas 2 are obtained by bringing electric furnace dust 1 containing zinc oxide or secondary dust 1 generated at the time of reduc...
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JP6094468B2 |
To provide a manufacturing method of zinc oxide ore which can reduce fluorine concentration of the zinc oxide ore to low concentration while keeping zinc grade of the zinc oxide ore and running efficiency of a rotary kiln.A manufacturing...
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JP6094467B2 |
To provide a manufacturing method of zinc oxide ore which can reduce fluorine concentration of the zinc oxide ore to very low concentration while keeping zinc grade of the zinc oxide ore and running efficiency of a rotary kiln.A manufact...
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JP6090080B2 |
To provide a method of operating a reduction roasting furnace which can stably improve iron grade of a reduced iron raw material, produced subsidiarily from steel dust, to specified desirable quality in the whole process of production of...
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JP6086801B2 |
To provide a simple and inexpensive method of separating gallium from impurities.A method of separating gallium from zinc includes a first step of adjusting the pH of a gallium aqueous solution containing zinc to 3-5 and taking out a pre...
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JP6080070B2 |
To provide a method for recovering rare metals which allows for utilizing input materials without waste, and regenerating the input materials easily so as to recycle, and to provide a device for recovering rare metals which can be easily...
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JP6070898B2 |
The purpose of the present invention is to enable high-purity manganese extremely reduced in contamination by zinc, carbon, etc. to be easily obtained at low cost by: selecting out manganese dry batteries and/or alkaline manganese dry ba...
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JP6073473B2 |
This method is based in the recirculation of an iron free solution or a solution with low iron content in such a manner that the final acidity conditions obtained are ideal for iron to efficiently precipitate as jarosite. In a variation ...
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JPWO2014112222A1 |
To expand the use of secondary ash from a blast furnace and contribute to the formation of a recycling-oriented society. Secondary blast furnace ash is separated into unburned carbon and ash, the separated unburned carbon is used as fuel...
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JP6025868B2 |
There are provided processes for treating red mud. For example, the processes can comprise leaching red mud with HCl so as to obtain a leachate comprising ions of a first metal (for example aluminum) and a solid, and separating said soli...
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JP6017877B2 |
To provide a processing method of efficiently recovering gallium at low cost with the minimum amount of alkali hydroxide in an alkali fusion method for recovering gallium from an InGaZn waste material.A method of recovering gallium inclu...
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JP5994678B2 |
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JP5979712B2 |
The present invention is one capable of collecting the metal dissolving in a solution, wherein graft chains of a glycidylalkyl(meth)acrylate represented by the following general formula (1) are formed in the polymer substrate and the gra...
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JP5958415B2 |
To provide a production method which improves the productivity of a zinc oxide sintered mine and includes a drying heating step, using a drying heating rotary kiln (DRK), of reducing the carry-over of an input object in a drying heating ...
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JP5948637B2 |
To provide a metal recovery method in which appearance quality of the metal is high.A metal recovery method in which a manganese clinker (a first mixture) including manganese as a main component is recovered from a waste dry cell includi...
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JP5939910B2 |
To recover high purity cobalt at a high recovery by suppressing the loss of cobalt while reducing copper from an acidic aqueous solution with a high purity concentration as possible.In the method for recovering cobalt from a copper-conta...
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JP5935098B2 |
A zinc production method includes a reaction step such as a leaching step (101) of bringing electric arc furnace dust (1) containing zinc oxide or the like into contact with a chlorine gas (8) to obtain a zinc oxide component in the elec...
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JP5924575B2 |
To provide a treatment method of zinc slime, by which a zinc slime (a mixture of a zinc hydroxide and another) generated in a non-ferrous smelting step and a chlorine-containing resin are recycled as a zinc smelting raw material, and als...
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JP5920720B2 |
To provide a method for treating zinc slime as a method of recycling, as a zinc refining raw material, a chlorine-containing resin and zinc slime (mixture of zinc hydroxide and the other mixture) produced in a non-ferrous refining step, ...
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JP5909189B2 |
Methods and apparatus for condensing vapour phase compounds or elements, typically metals such as magnesium, obtained by reduction processes.
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JP2016054736A |
To provide an efficient metal extraction method using organisms from a used electronic equipment part, such as a wasted electronic substrate.An acidophilic thiobacillus ferrooxidans, Sulfobacillus thermosulfidooxidans NE106G strain, or a...
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JP5904089B2 |
To provide a method in which additional cost is suppressed, halogen and cadmium included in crude zinc oxide can be efficiently removed in production of zinc oxide ore.A production method of zinc oxide ore includes: a wet process S20 in ...
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JP5904073B2 |
To provide a method for producing a zinc oxide ore from a raw ore containing fluorine, by which the fluorine concentration in the zinc oxide ore can be reduced to an extremely low concentration while maintaining the productivity of the z...
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JP5893145B2 |
A process for separating zinc from a feedstock containing a mixture of metals and metal compounds. The process includes leaching a zinc-containing feedstock with a concentrated basic solution, optionally diluting the slurry with an amoun...
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JP5881885B1 |
To pay attention to a reduction treatment gas containing zinc vapor generated when reducing iron is produced from electric furnace dust containing iron oxide and zinc oxide when recovering zinc from a zinc vapor-containing gas. The chall...
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JP5881886B1 |
To focus on a reduction treatment gas containing metallic zinc vapor generated when reducing iron is produced from electric furnace dust containing iron oxide and zinc oxide, and from the viewpoint of energy efficiency from the viewpoint...
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JP5862305B2 |
To provide a treatment method for smoke ash which can recover lead with high efficiency while suppressing an increase in treatment cost, from smoke ash that is generated in refining a non-ferrous metal and contains lead and zinc where le...
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JP5854460B2 |
To provide a means for selectively extracting cadmium or zinc ions from a solution containing at least one base metal ion chosen from cadmium and zinc.There is provided a compound represented by formula I [wherein R, R, Rand Rare each in...
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JP5849687B2 |
To provide a method of highly efficiently recovering metallic zinc present in the top dross of zinc-based molten metal at a high recovery rate without generating a harmful halogen or a harmful halide.The method of recovering metallic zin...
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JP2015232084A |
To provide a metal scavenger that facilitates purification and allows easy and efficient recovery of metal, a production method thereof, and a metal recovery method that allows easy and efficient recovery of metal.A water-soluble metal s...
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JP2015535886A |
A process for preparing alumina, in which the aluminum-containing material is leached with HCl to obtain a leachate and solid containing aluminum ions, magnesium ions, and the solid is separated from this leachate; MgCl2. A step of subst...
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JP5832183B2 |
To provide a simple, practical, and effective method of reusing wet dust present in a material generated in a blast furnace, for effectively using wet dust collected from exhaust gas of an iron-making blast furnace, which method comprise...
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JP5832184B2 |
To provide a simple, practical, and effective method of reusing wet dust present in a material generated in a blast furnace, for effectively using wet dust collected from exhaust gas of an iron-making blast furnace, which method comprise...
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JP5820070B2 |
The present technology provides an illustrative apparatus for recycling electric arc furnace (EAF) dust and method of use related to the same. The apparatus has a heat controlling region coupled to a separation volume and includes at lea...
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JP5813506B2 |
The method involves melting a metallic element comprising a feeder material e.g. aluminum, which is heated by a burner (4). The burner is set to a reduction period in a reduction operation state when a change of exhaust gas temperature i...
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JP5786021B2 |
A method for recovering valuable metals, such as lead, silver and gold from the residue of an electrolytic zinc process, wherein the residue from the zinc process is suspended and sulfidized for converting the lead and silver compounds i...
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JP5770118B2 |
To provide a method of producing reduced iron, capable of continuously operating a rotary kiln for a long period of time by preventing generation of deposits on an inner wall of the rotary kiln.A method of producing reduced iron includes...
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JP2015148008A |
To provide a recovery system of high purity indium by a molten salt refining electrolytic method of conductive ITO (InO-SnO) scrap which is a main material for liquid crystal.There is provided a recovery system of high purity indium incl...
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JP5764264B2 |
A method for leaching a sulfidic metal concentrate in hydrometallurgical production of metal in a leaching process from which hot water vapor containing off-gas is conducted out and to which an acid solution warmed up to an elevated temp...
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JP5762335B2 |
To provide a dezincing apparatus which can cope with an increase in throughput and can realize uniform heating irrespectively of the properties of a galvanized steel sheet.A dezincing apparatus is provided with: a heating vessel 10 in a ...
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