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Matches 451 - 500 out of 1,107

Document Document Title
JP2008230942A
To obtain a lead recovered matter of high quality from cement kiln combustion gas extracted dust at a low cost.A combustion gas including dust whose lead content is increased is extracted from a kiln exhaust gas flow passage from the bot...  
JP2008231549A
To efficiently recover a trace amount of lead, etc., from dust contained in a combustion gas of a cement-kiln at a low cost.An apparatus 1 for treating cement-kiln dust is provided with a classifier 8 which classifies dust contained in t...  
JP2008534785A
A method of operating a channel induction furnace so as to receive electric arc furnace (EAF) dust, basic oxygen furnace (BOF) sludge/dust and/or other iron and volatile metals containing materials as a feed stream on a batch, continuous...  
JP2008190019A
To efficiently decrease a lead content in cement without affecting the quality of the cement.The lead-collecting apparatus comprises: a chlorination-volatilizing furnace 2 which is installed adjacent to a cement-firing facility, and chlo...  
JP2008531854A
A cathode comprising an oxygen-containing compound, or a metal containing dissolved oxygen, is arranged in contact with a melt comprising a hydroxide of an alkali metal. An inert anode, advantageously comprising nickel, is also arranged ...  
JP4130629B2
An improved method and apparatus for recovering metal values from Electric Arc Furnace dust, particularly zinc and iron values, by mixing EAF dust and carbonaceous fines to form a particulate mixture; heating the mixture at a sufficient ...  
JP4118240B2
To separate and recover lead from a gas produced when having heat-treated waste containing the lead in a reducing atmosphere. This recovering method comprises: heat-treating the waste containing lead, zinc, iron and sulfur in a reducing ...  
JP2008143728A
To efficiently reduce the content of lead in cement without exerting influence on the quality of the cement.The lead recovery device is equipped with: a reduction firing furnace 2 installed in cement firing equipment and subjecting lead ...  
JP2008110288A
To provide a treatment method which enables a fractional recovery of a calcium component and a lead component from micropowders containing the calcium component and the lead component.The method comprises (A) the process of mixing the mi...  
JP2008106344A
To provide a method for manufacturing a substrate for a lead storage battery which inhibits the formation of dross in a melting/holding furnace for lead, and to provide a manufacturing apparatus therefor.The method for manufacturing the ...  
JP2008106328A
To provide a method by which a powdery material in which sulfuric acid is present independently can be accurately granulated into granules or briquettes even in the case where an additive quantity of a binder is relatively small and also...  
JP4083791B1
To provide a method for treating fine powder capable of separating a calcium component and a lead component from the fine powder containing the calcium component and the lead component by a simple operation to recover the lead component ...  
JP2008093491A
To provide a simple method capable of always recovering a calcium component and a lead component in a high recovery ratio regardless of the large content of the calcium component in a fine powder using a reduced number of processes and a...  
JP2008093510A
To provide a treatment method capable of separating and recovering a calcium component and a lead component from fine powder containing the calcium component and the lead component with a small number of treatment steps and chemicals whi...  
JP2008068156A
To provide a method which treats slag obtained by a high-temperature treatment of waste as it is raw to allow a molten lead salt to elute from the slag, and enables a decrease in lead content of the slag in an ash melting furnace.In an e...  
JP4066259B2
To provide a method capable of treating waste originated from mollusk inexpensively, highly safely and with a high added-value and capable of treating heavy metals. The waste originated from the mollusk is decomposed by at least one side...  
JP4059677B2
To provide a method of selectively separating and recovering bismuth which is a valuable resource, from an aqueous bismuth solution produced from nonferrous smelting industry. The method of recovering the bismuth comprises selectively ad...  
JP4047398B2
The invention relates to a method and an apparatus for the suspension smelting of suifidic, finely divided raw materials containing metals, such as copper, nickel and lead, by using oxygen enrichment. In this method into the suspension s...  
JP4044068B2
To provide a treating method by which solid containing zinc can be obtained while demonstrating satisfactory solid-liquid separation performance, and moisture content in the solid can be greatly reduced, when zinc or the like is recovere...  
JP4017401B2
To provide a method for recovering metal in ash in which the treatment cost can be reduced while the metal of high purity containing no chlorine can be easily recovered. This method comprises a melting step of generating molten metal wit...  
JP2007308762A
To provide an improved low environmental load type metal recovery method which can highly efficiently perform repeated cyanogen formation and decomposition by carrying out a time-consuming cyanogen decomposition/detoxification process in...  
JP4001399B2
A method is disclosed for recovering condensed solidified volatile metals from slag that exits the reactor section of a partial oxidation reactor. In a partial oxidation reactor, condensed solidified volatile metals become adsorbed onto ...  
JP3987597B2
To efficiently remove impure antimony from active material paste, obviate refining of a positive electrode active material, and reuse it with less energy consumption by inputting/agitating positive electrode active material paste for a u...  
JP3984165B2
The invention relates to an apparatus for feeding finely divided solids, containing at least sulphidic metal concentrate, and oxygenous oxidizing gas into a suspension smelting furnace, said apparatus comprising elements for conducting s...  
JP3962855B2
To provide a method capable of efficiently and easily separating and recovering various kinds of metals from the incineration ash generated when wastes, such as shredder dust, are incinerated or the molten fly ash generated when the inci...  
JP3960400B2
To provide a method for separating the compositional components from a solder alloy in which Pb is physically separated to recover from a solder alloy essentially consisting of Sn and Pb at a low cost. Molten Cu is filled into a vessel 1...  
JP3955934B2
To perform recovery in such a manner that impurities by an amount equal to or above the prescribed one are not included in hematite produced in the case zinc residue treatment in wet type zinc refining is performed by a hematite process ...  
JP2007519888A
The invention provides methods of remediating lead and other heavy metals in ammunition traps and shooting ranges. One or more remediation agents is added to a trap or a shooting range. The remediation agent(s) interact with and "fix" he...  
JP3944556B2
To provide a method in which useful heavy metals in fly ash are separated from chlorine and separated/recovered in a recyclable form in a smelting process. This method includes a process in which fly ash is added with an alkaline agent, ...  
JP2007154236A
To provide a treatment method by which a new circulation system can be established and a social contribution can be made by stopping the landfill disposal of lead-containing combustion ash and effectively utilizing the combustion ash for...  
JP3934685B2
PURPOSE: To easily refine lead having high purity. CONSTITUTION: Lead 1 to be refined is fine size having ≤50 mm and is leached by using a leaching device 2 with a solution of ferric fluoroborate in fluoroboric acid. At the leaching st...  
JP2007515552A
The invention provides a method for the selective separation of nickel and lead from acidic aqueous cobalt solutions, in particular, cobalt carbonate, sulphate or chloride solutions, by reactive extraction with acidification by means of ...  
JP3924981B2
To provide a treatment process for converting waste such as municipal refuse incineration ash or sewage sludge incineration ash, into a treated material which contains substantially no sulfate ions and has a drastically reduced lead cont...  
JP2007117977A
To provide a waste treatment system which, in general waste or industrial waste, gasifies waste to be gasified, and melts all waste not to be gasified, and recovers the waste as reusable solids.A furnace of vertical type, shaft type, or ...  
JP3911587B2
To provide a method for easily and efficiently separating and recovering various metals from incineration fly ash which is generated when incinerating wastes, such as shredder dust, or from molten fly ash which is generated when the inci...  
JP3911538B2
To provide a method capable of inexpensively recovering a heavy metal for smelting raw material having little chlorine and fluorine contents from fly ash containing the heavy metal, such as copper, zinc, lead, and also, the chlorine and ...  
JP3901423B2
To form a multiplex coherent gas jet with a simple lance by feeding out fuel and oxidizer from the end part of a lance, burning, forming a flame envelope surrounding plural gas jets and individually holding the flow of each gas jet over ...  
JP3896442B2
To provide a method for separating a useful heavy metal in fly ash from chlorine and recovering the heavy metal in such a form being reusable in a refining step. The treatment method has a washing step in which fly ash is washed to disso...  
JP2007056373A
To provide a lance for forming a plurality of multiple coherent gas jets that are proximate one another using a single lance.The lance has (A) an end face equipped with a plurality of tapered/divergent nozzles each having inlet and outle...  
JP2007500120A
Abrasion mills for the production of lead oxide call for the use of mechanically produced lead shavings, taken directly from bars or other adequately titrated lead bars. The flat, helical lead shavings are produced using specially design...  
JP3850171B2
To improve the treating capacity in the existing equipment even in the case of increasing a zinc leaching residue as the treating object by executing a concentrating process of float with plural sets of thickeners connected with a series...  
JP3845355B2
To provide a recycling method by which smoke dust is utilized as the raw material for iron making without subjecting the same to reclaiming treatment, and the economically treatable smoke dust is used as the raw material for iron making....  
JP2006307268A
To provide a method for collecting dust containing little halogen element when slag-fuming a slag produced in a smelting furnace for smelting zinc and/or lead.When collecting the dust containing zinc and lead from a fumed gas which has b...  
JP3823478B2
To improve the permeability of ore layer in a sintering machine and to stably and efficiently produce the good quality sintered block by classifying returned powder into small diameter grain group and large diameter grain group, granulat...  
JP3816217B2
To provide a method for efficiently, stably and economically separating copper, silver-lead and silica contained in the zinc leaching residue in wet zinc refining. When the zinc leaching residue is secondarily leached by the use of sulfu...  
JP3811433B2
To provide a melting furnace for extremely reducing the amount of leakage of gas in the furnace to the outside and the amount of slug to be generated, and making uniform the height of a load in the furnace. In the melting furnace, a load...  
JP3802046B1
To provide a treatment method of obtaining a solid content of zinc and lead of little moisture content from heavy metal-containing powder such as fly ash containing calcium, lead, zinc, copper, and a chlorine content. The method comprise...  
JP2006176857A
To provide a slag fuming method where in which, from slag produced from a refining furnace for zinc and/or lead refining, zinc and lead are volatilized and separated, fume comprising zinc and lead and having the low contents of arsenic a...  
JP2006176858A
To provide a slag fuming method where, from slag produced from a refining furnace for zinc and/or lead refining, dust comprising zinc and lead and having the low contents of arsenic and antimony, and slag capable of stably satisfying soi...  
JP3794260B2
To provide a treatment method which is capable of rapidly and efficiently filtering out zinc in liquid. The method is to subject wastes to the separation of solid from liquid by acid leaching and recovering the zinc from the filtrate, in...  

Matches 451 - 500 out of 1,107