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Matches 301 - 350 out of 1,252

Document Document Title
JP2014025141
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...  
JP2014015647
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...  
JP2013234368
To obtain zinc in which the content of carbon is reduced, and further to obtain high purity silicon, in which the content of carbon is reduced, by a zinc reduction method using the zinc having a low carbon content.In a method for refinin...  
JP2013185179
To provide a hydrometallurgical method for nickel oxide ore, with which it is possible to improve the filtering characteristics in a dezincification step in which a neutralized liquid that contains zinc besides nickel and cobalt is sulfi...  
JP2013170291
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 ...  
JP2013159797
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...  
JP2013159838
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...  
JP2013155402
To provide a method of producing economically recyclable high concentration zinc cake of a zinc concentration of at least 40%, by efficiently separating zinc present in a waste galvanization solution from iron at low cost.A zinc composit...  
JP2013147364
To provide a hydrogen sulfide gas production plant capable of recovering discharged waste hydrogen sulfide gas and efficiently supplying the gas to a treatment plant that performs treatment by using hydrogen sulfide gas; and a method for...  
JP2013147702
To provide a processed product of noble metal-containing scrap from which the noble metal can be simply and efficiently recovered and a production method therefor and a noble metal recovery method.A processed product of noble metal-conta...  
JP2013139618
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...  
JP2013133479
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...  
JP2013112839
To provide a method for producing a high-quality sintered ore by which a rotary kiln required to stably operate at high temperature can continue the high temperature operation and at the same time the generation of solid block etc. as th...  
JP2013095692
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 R1, R2, R3 and R4 are e...  
JP2013076149
To provide a recycling system in which work burden on a rotary kiln is reduced and furthermore, reduced iron and zinc can be effectively taken out from soot and dust.The recycling system 10 includes: an electric furnace 12 which melts sc...  
JP2013060662
To provide a method of efficiently recovering indium and zinc from an indium-zinc oxide (IZO) sputtering target or IZO scrap such as IZO mill ends arising during manufacture.The method of recovering valuable metal from IZO scrap is chara...  
JP2013044045
To provide a method and system for recovering valuable metals of waste catalysts/waste adsorbents, efficiently recovering valuable metals from waste catalysts used in petroleum refining process.The method for recovering valuable metals o...  
JP2013039124
To provide a seed plug capable of enhancing the germination rate and growing rate of seeds planted in a ground contaminated with heavy metals and thus efficiently and stably purifying contaminated soil, and to provide a method for purify...  
JP2013027863
To provide a metal adsorbent capable of collecting metals dissolving in a solution.The metal adsorbent is characterized in that graft chains of a glycidylalkyl (meth)acrylate represented by general formula (1) are formed in a polymer sub...  
JP2013023720
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...  
JP2013023719
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...  
JP2013014789
To provide a method for treating waste that contains an alkaline component by combustion in a smelting furnace, wherein the deposition of flue cinder in exhaust gas treatment equipment etc. is suppressed.In the method for treating the wa...  
JP2013001990
To provide a method for recycling waste batteries, capable of suppressing cost and energy needed for recycling treatment and improving recovery percentage of lithium included in the waste batteries.In a method for recycling waste batteri...  
JP2012246546
To provide a metal recovery method capable of efficiently recovering metal components from the exhaust gas dust discharged from a smelting furnace in a metal refining process.The metal recovery method includes: feeding the exhaust gas du...  
JP2012241205
To provide a method for the reduction treatment of a metal oxide in which metallic zinc in a waste gas can be fully oxidized, and deposits on the inside surface of an exhaustion duct can be reduced.The method for the reduction treatment ...  
JP2012240031
To provide a heavy metal collecting material which is obtained by making effective use of woody incineration ash to be generated as waste when woody biomass is burned, which promotes the utilization of the woody biomass as fuel, which ca...  
JP2012233261
To provide a method for utilizing a secondary raw material including iron, zinc, lead, and preferably, steelmaking dust, using slag adjusted to basicity in a rotary tubular furnace conventionally equipped for a rolling process.The raw ma...  
JP2012214865
To provide a process of leaching gold efficiently at low cost, from a mixture containing sulfur and gold, typically from a floatation recovered material containing sulfur and gold being an intermediate product in wet smelting, without us...  
JP2012201946
To provide an operation method of a rotary kiln for reduction-roasting of steel dust by which even from steel dust having much content of zinc, zinc can be recovered with high yield and an iron-containing clinker usable as iron resources...  
JP2012201917
To provide a refining method of Al scrap by which an Al refined article (an integration body of the compressed primary crystal) from which Si is removed at a predetermined high Si removal rate, can be highly efficiently produced from Al ...  
JP2012201901
To provide a method for manufacturing a zinc oxide sintered ore which is low in grade of chlorine, fluorine and lead from zinc-containing iron and steel dust generated in a manufacturing process for iron and steel and is suitable for ele...  
JP2012201931
To provide a refining method of Al scrap by which an Al refined article can be highly efficiently produced from Al scrap, the Al refined article simultaneously satisfying the predetermined high Si removal rate and high Al recovery rate a...  
JP2012201947
To provide a raw material pellet for reduction-roasting of steel dust with which the volatilization ratio of zinc contained in the steel dust can be improved, and a method of manufacturing the same.The raw material pellet for reduction-r...  
JP2012193396
To provide a new method for producing metallic gallium with which copper can be efficiently removed in a method for producing metallic gallium from gallium and copper-containing raw material.The production method contains a step of disso...  
JP2012192312
To selectively recover desired heavy metal from wastewater.An adsorbent is produced by mixing clay mineral, metal containing trivalent cations, and leaf mold containing corrosive acid at a predetermined ratio.  
JP2012167334
To provide a method of efficiently recovering Ir from a platinum group-containing solution, capable of improving an adsorption rate of Ir to activated carbon and efficiently recovering Ir.The method of recovering Ir from a platinum group...  
JP2012086209
To provide a method removing Fe from a phosphoric ester extracting agent used for Zn solvent extraction and containing 800 mg/L or more of Fe to thereby reproduce the agent.The method of reproducing a deteriorated extracting agent includ...  
JP2012082458
To inexpensively and efficiently separating zinc in the zinc plating waste liquid from iron, and to produce high concentration zinc cakes of a zinc concentration of 40% or more which can be economically recycled.The method includes: an a...  
JP2012077341
To provide a method for treating lead slag, which can reduce the amount of drainage generated from lead slug and remove copper from the lead slag.The method for treating lead slag includes the steps of: adding a sulfuric acid, a ferric s...  
JP2012077374
To increase the concentration of cadmium by a simple method, and to easily and stably obtain crude cadmium having a relatively high purity (Cd>90%) even if some impurities are present.The method for producing crude cadmium is characteriz...  
JP2012077343
To provide a method for refining high-purity bismuth while efficiently recovering valuable metals from lead anode slime.The method for refining bismuth includes the steps of: adding zinc to a bismuth molten metal containing at least silv...  
JP2012067375
To provide a processing method for converting slag ejected from a converter in a copper smelting into an iron raw material.In the method for processing the converter slag containing 1 mass% or more of Cu produced in the copper smelting p...  
JP2012057234
To provide a leaching method capable of efficiently recovering main metals such as copper and zinc included in a waste electronic substrate or the like, and highly recovering rare metals as well.Waste electronic substrate powder being at...  
JP2012025616
To liquefy a zinc gas and a zinc chloride gas included in a reaction exhaust gas while suppressing additional reaction, and to separately recover two liquids.A body part 10 with a tilt angle of 10-30 degrees is filled with a liquid zinc ...  
JP2012012230
To produce waste acid gypsum with high purity at low cost.There is provided a method for producing waste acid gypsum, including the steps of: a waste acid processing step in which sodium hydrosulfide is added to a waste acid containing s...  
JP2012007211
To provide a slag fuming operation method excellent in productivity in which the volatilization separation of zinc and lead per unit time is promoted and dust including a large amount of zinc and lead is obtained.The slag fuming operatio...  
JP2011256084
To provide a method for producing polycrystalline silicon whose production cost is low and operation control and apparatus control are simple.The method for producing high purity polycrystalline silicon includes oxidation treatment which...  
JP2011231366
To provide a valuable metal recovery method that has excellent valuable metal selectivity and recovery efficiency, and furthermore is capable of reusing materials that have been used in the recovery of a valuable metal.The valuable metal...  
JP2011230074
To specifically provide a simple, practical and effective method for separating wet dust in gas emissions from a blast furnace for iron manufacturing containing a large amount of carbon (C) into iron (Fe) and carbon (C) to reuse them in ...  
JP2011219323
To provide a method for recovering unreacted zinc which efficiently recovers the zinc which does not contribute to a reduction reaction and is discharged in an unreacted state in a zinc reduction method for refining silicon for a solar c...  

Matches 301 - 350 out of 1,252