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JP5123571B2 |
To the reduction furnace 2 to which zinc-containing iron oxide or zinc oxide or iron oxide is supplied, there is supplied at least one of ASR, shredder dust of home electric appliances, waste plastics, refuse-derived RDF, RPF, sludge, oi...
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JP5128494B2 |
The invention concerns a method for the continuous or discontinuous extraction of a metal or several metals from a slag that contains the metal or a compound of the metal, in which the liquefied metal-containing slag is heated in a prima...
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JP5114341B2 |
To efficiently produce high purity zinc by electrolyzing zinc chloride generated as a by-product by a zinc reduction method and to produce silicon by the zinc. A method of producing zinc comprises: a distillation step of obtaining purifi...
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JP5102317B2 |
Provided are a method of recovering valuable metals from IZO scrap, wherein indium and zinc are recovered as hydroxides by using an IZO scrap as both an anode and a cathode, and performing electrolysis while periodically reversing polari...
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JP5094411B2 |
The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (1, 2). In order provide an improved method for r...
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JP2012240031A |
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...
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JP5090655B2 |
A method for recycling steelmaking dusts has a granulating step of mixing steelmaking dusts, containing as a principal component iron and oxides thereof produced during the steelmaking in a melting furnace, with a powder containing carbo...
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JP5092615B2 |
To provide a slag-fuming method which can yield a dust that contains zinc, lead and little amount of arsenic, antimony and a halogen group element, and a slag that stably satisfies a standard for a soil environment at a high volatilizati...
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JP2012233261A |
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...
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JP5084272B2 |
To provide a method by which a high grade zinc compound having low moisture content can be efficiently separated and recovered from a substance containing heavy metals including zinc. The method for treating the substance containing heav...
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JP5086500B2 |
Evaluating steel works dust containing iron, zinc and lead comprises mixing and/or agglomerating the dust with a finely ground carbon carrier that can react. The amount of carbon compared with all carbon-consuming reactions is present st...
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JP5079222B2 |
To prevent deterioration in the quality of iron and to recover dust having high zinc content. At least one among ASR (automobile shredder residue), shredder dust from electric appliances, waste plastics and RDF (refuse derived fuel) and ...
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JP5071770B2 |
The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process comprises the steps of:-subjecting ...
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JP5074762B2 |
To provide a metal refining method and a device by where high purity metal can be safely and efficiently refined without increasing the peripheral velocity of a cooling body and without providing a baffle at the inner circumferential fac...
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JP2012528243A |
A method for leaching one or more target metals from a sulfide ore and/or concentrate containing such, the method comprising the steps of: (a) Exposing the ore and/or concentrate to an aqueous solution of chlorine-based oxidising species...
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JP5057206B2 |
To provide a method for producing zinc valuables of zinc oxide and zinc dust with high purity from zinc collected dust generated in blast working using zinc shots, and to provide zinc valuables produced by the production method. In the p...
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JP5052963B2 |
To provide a method for manufacturing molten zinc at a low cost while preserving the environment by using metal iron powder as not only a reducing agent but also a heat generating source without using a carbon material. Zinc oxide is mix...
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JP5049311B2 |
A method for processing converter slag produced in copper smelting includes feeding the converter slag into a reducing furnace, reducing zinc and copper contained in the converter slag by heating and removing the reduced zinc through vol...
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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.
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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...
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JP3178801U |
To provide an apparatus for efficiently separating zinc oxide ash generated on a bath surface by a hot-dip galvanizing operation into zinc bullion and treated ash in parallel with the hot-dip galvanizing operation. By-product zinc oxide ...
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JP5007779B2 |
To remove Fe in a leach liquor fed to cleaning-electrolyzing stages in wet type zinc refining at high precision. When zinc is leached with acid from roasted ore essentially composed of zinc oxide in a first leaching tank 10, pulp dischar...
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JP4992549B2 |
To stably perform the operation without developing such problems as to increase the blasting pressure and drop the molten iron tapping temperature and slag temperature, when the molten iron is produced by using dust-agglomerate as a part...
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JP4983276B2 |
A melting evaporation device of metals is provided, which increases production efficiency and quickly performs melting and evaporation with a stable speed. The melting evaporation device of metals features that it includes a retention ta...
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JP4982662B2 |
To provide a wet type treatment method for zinc leaching residue in which an arsenic removing stage is smoothly carried out even if treatment conditions in the prestage are varied. In the wet type treatment method for zinc leaching resid...
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JP4980399B2 |
To reduce the recovery cost of copper by reducing the content of copper in residue after separation treatment of lead in copper converter dust treatment. The treatment method for copper converter dust includes: an oxidation-acid leaching...
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JP4961600B2 |
To provide such a process of burning a zinc concentrate and treating the burnt concentrate with acid as not to lower a seepage rate of zinc from the burnt concentrate even when the zinc concentrate is obtained from a zinc ore containing ...
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JP2012513536A |
The present invention relates to a method for removing halides, in particular chlorides and fluorides, from starting secondary zinc oxides, for example Waelz or Primus oxides, comprising the steps (1) for washing the secondary zinc oxide...
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JP4932085B2 |
A solvent extraction composition is provided which comprises one or more orthohydroxyarylaldoximes or orthohydroxyarylketoximes and one or more esters substituted with a hydroxyl group, and preferably a water immiscible organic solvent. ...
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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...
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JP4921529B2 |
To reduce residue from refining dust discharged in copper refining, and to increase the throughput of the raw material for the refining dust. The method for treating copper converter dust includes: a dilute sulfuric acid leaching treatme...
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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...
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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...
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JP4914976B2 |
To provide a method for improving the removal rate of thallium from a zinc sulfate solution with high efficiency without increasing the conventional stages and equipment, and also without increasing the amount of zinc dust to be used in ...
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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...
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JP4904067B2 |
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JP4903042B2 |
The invention relates to a method and apparatus for controlling a continuous metal removal in conjunction with a zinc preparation process, in which the metal removal is performed in one or more reactors (11a-c), in conjunction with the r...
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JP4885391B2 |
A solvent extraction composition is provided which comprises one or more orthohydroxyarylaldoxime or orthohydroxyarylketoxime and at least one dialkyl ester of an optionally substituted ethylene or polyethylene glycol and preferably a wa...
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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 ...
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JP4872316B2 |
To provide a method and system for the recovery of valuable elements in a cement calcination plant which enables an efficient recovery of valuable elements contained in exhaust gas and their recycle as resources, in the utilization of va...
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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...
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JP4852716B2 |
To solve the problems that the conventional method of leaching zinc concentrates needs many equipments such as roasting equipment, sulfuric acid recovery equipment, independent oxidation equipment for divalent iron ions and, many stages ...
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JP2012500110A |
A method for disposing electrical and electronic equipment comprising plastic and metal components, the method comprising: melt processing the equipment and/or comminuted parts thereof to form a melt processed product; transferring the m...
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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...
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JP4820777B2 |
To improve the working rate of a solid-reduction furnace, relating to an apparatus and a method for processing the reduction of iron oxide containing zinc or zinc oxide or iron oxide. This apparatus is the one, in which the iron oxide co...
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JP4823192B2 |
To provide a waste water treatment method where harmful waste water containing heavy metals and organic matters is subjected to purification treatment, and the waste water is made harmless to a dischargeable state. Floatation waste water...
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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 ...
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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...
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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...
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JP4806120B2 |
A cadmium- and zinc-hyperaccumulating subspecies from Thlaspi caerulescens and methods for removing and optionally recovering cadmium and zinc from soil using phytoextracting techniques wherein the subspecies is cultivated on soil contai...
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