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Matches 551 - 600 out of 2,566

Document Document Title
JP2012214865A
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...  
JP5057206B2  
JP2012201947A
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...  
JP2012201901A
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...  
JP2012201931A
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...  
JP2012201917A
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 ...  
JP2012201946A
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...  
JP5052963B2  
JP5049311B2  
JP2012192312A
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.  
JP2012193396A
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...  
JP3178801U
[Subject] From zinc oxide ashes generated in a bath surface by hot-dip-galvanizing work, a device efficiently divided into a zinc metal and processing ashes is provided in parallel to hot-dip-galvanizing work. [Means for Solution] While ...  
JP2012167334A
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...  
JP5007779B2  
JP4992549B2  
JP4983276B2  
JP4982662B2  
JP4980399B2  
JP4961600B2  
JP2012513536A  
JP4932085B2  
JP2012086209A
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...  
JP2012082458A
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...  
JP4921529B2  
JP2012077374A
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...  
JP2012077343A
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...  
JP2012077341A
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...  
JP4914976B2  
JP2012067375A
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...  
JP4904067B2  
JP2012057234A
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...  
JP4903042B2  
JP4885391B2  
JP2012025616A
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 ...  
JP4872316B2  
JP2012012230A
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...  
JP2012500959A  
JP2012500902A  
JP2012007211A
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...  
JP4852716B2  
JP2012500110A  
JP2011530650A  
JP2011256084A
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...  
JP4820777B2  
JP4823192B2  
JP2011230074A
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 ...  
JP2011231366A
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...  
JP2011219323A
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...  
JP4806120B2  
JP2011195392A
To provide a method for continuously refining polycrystalline silicon by which, when the polycrystalline silicon is produced by reducing silicon tetrachloride by a zinc reduction method, reduction is continuously performed and generation...  

Matches 551 - 600 out of 2,566