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JP2002308902A |
To obtain an extraction agent capable of selectively extracting cupric ions out of an aqueous solution wherein cupric ions and base metal ions other than cupric ions coexist and capable of selectively extracting nickel ions out of an aqu...
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JP3336131B2 |
PURPOSE:To recover the valuable metal consisting essentially of zinc contained in dust in a pure form by keeping the top of a vertical smelting reduction furnace at a specified temp. while zinc-contg. dust is blown into the furnace. CONS...
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JP3336167B2 |
PURPOSE: To efficiently recover valuable metal in a high yield by reducing dust of an electric furnace with carbon base solid reducing agent, recovering molten iron having Fe as the main component, dividing the vaporized Zn into low cont...
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JP2002294352A |
To analyze the inside of a blast furnace by a dry zinc smelting ISP method which enables reproduction of actual operation and follows change in the situation in the furnace caused by change in operational condition.The state of reaction ...
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JP2002285254A |
To reduce an amount of heat for manufacturing a zinc oxide calcine or a zinc oxide briquette without increasing the moisture content of the resultant zinc oxide cake.This method comprises the following steps: (1) a step of charging zinc-...
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JP3328950B2 |
PURPOSE:To separate and recover a zinc concentrate and copper concentrate at a high actual yield without consuming many kinds of reagents for suppressing sphalerite and without requiring a high degree of operation managing techniques for...
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JP2002241852A |
To provide a method for manufacturing a crude zinc/lead oxide sintered agglomerate by a Dwight-Lloyd sintering machine with high productivity.In the method for manufacturing the crude zinc/lead oxide sintered agglomerate by the Dwight-Ll...
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JP3319056B2 |
PURPOSE: To efficiently recover zinc from scrap with inexpensive equipment. CONSTITUTION: A vacuum melting device 8 of a simple type is constituted by housing an induction melting furnace 5 in a vacuum vessel 4 consisting of a vessel bod...
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JP3317137B2 |
To provide a recovering apparatus which continuously and efficiently recovers zinc raw materials of a high zinc concn. from iron making dust. This recovering apparatus has a melting furnace 32 which is charged with the agglomerated iron ...
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JP3317131B2 |
To produce zinc raw material having high zinc concn. which can be supplied to a zinc refining maker from iron-making dust. In a zinc recovering method from the iron-making dust, (a) in order to recover a part having a prescribed content ...
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JP2002526659A |
A device for removing dross from the surface of the molten metal and for extracting usable elemental metal from the dross. The device comprises a container in which the dross is collected, a means for lifting the container out of the mol...
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JP2002526652A |
The invention relates to a method for producing directly reduced metal in a multi-tiered furnace, whereby metal oxides and a reducing agent are inserted into the furnace and the process heat required for the reduction of the metal oxides...
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JP2002226240A |
To provide a method for speedily and inexpensively treating blast furnace dust to be wasted and re-utilizing the treated waste.This method for treating blast furnace dust comprises the steps of adding moisture to the dust in the moisturi...
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JP2002206123A |
To provide a method for treating zinc-oxide-containing wastes by which treatment can be done in a short time and zinc recovery rate can be increased.This method comprises the following steps: a mixing step where wastes (e.g. dust from st...
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JP2002522644A |
Process for recycling of liquid carton waste material or other similar waste material having fibrous, metal and plastics materials. The process includes introducing the waste material and a slushing liquid into a slushing apparatus and s...
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JP2002522221A |
Process for recycling of liquid carton waste material or other similar waste material having fibrous, metal and plastics materials. The process includes introducing the waste material and a slushing liquid into a slushing apparatus and s...
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JP2002521563A |
The invention relates to a method for producing zinc using the IS process in an IS shaft furnace and to an IS shaft furnace for carrying out said method. To be able to utilize dust containing zinc in a simple manner the invention provide...
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JP2002192178A |
To provide a treatment method for removing heavy metals or valuable metals from wastewater by trapping heavy metals or valuable metals inexpensively and stably in a state friendly to environment from wastewater, waste soil or deposited s...
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JP2002194452A |
To provide a method for treating dust of an electric furnace with which production of undissolved lumps is prevented during treating the electric furnace dust and high zinc recovering ratio is obtained.The method for treating the electri...
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JP2002192186A |
To provide a treatment method for removing heavy metals or valuable metals from wastewater by trapping heavy metals or valuable metals inexpensively and stably in a state friendly to environment from wastewater, waste soil or deposited s...
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JP3300081B2 |
PURPOSE: To provide a method for treating fly ash from an incinerator and a melting furnace capable of separating heavy metals contained in the fly ash in a stabilized form. CONSTITUTION: First, two liters of distilled water is poured in...
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JP2002180139A |
To provide a method and equipment for recovering metal from a valuable- metal-containing material by which thermal efficiency and metal recovery rate can be increased and remaining of unreduced heavy metal in the slag drawn from a furnac...
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JP3289529B2 |
PURPOSE: To perform an efficient sucking of settled dross accumulated at a bottom part of a furnace without agitating it. CONSTITUTION: A swingable bucket 1 is descended down to settled dross 20 within a furnace 13 and rotated from its h...
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JP2002162170A |
To provide a facility and a method for treatment in which melting of scrap, treatment of waste and treatment of iron making dust can be carried out efficiently.A melting facility having a melting chamber and a preliminary chamber coupled...
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JP2002515547A |
The invention relates to a method for continuous separation of impurities and alloyings from liquid metal baths, e.g. iron-aluminum alloys, zinc oxides or mixed crystals from zinc baths, wherein liquid metal is extracted from the area cl...
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JP2002121622A |
To provide a method for recovering valuable metals in which operation is easy, reaction time is short, further, the reutilization of an organic solvent is possible, and reducibility of energy consumption and cost effectiveness are excell...
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JP2002121626A |
To provide a method for efficiently separating and recovering valuable metals from plating sludge by a simple method.A solution of ammonium carbonate is added to plating sludge containing valuable metals to leach the valuable metals, and...
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JP3277968B2 |
PURPOSE: To simultaneously and effectively utilize dust which is steel making waste and is industrial waste and reduced slag which is likewise the steel making waste and is the industrial waste. CONSTITUTION: The dust 14 which is the ste...
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JP2002511527A |
A method for treating steel works dust in order to recuperate elements capable of being upgraded. The method comprises attrition in water followed by hydraulic grading of the resulting load. The method is characterized in that is further...
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JP2002508445A |
The invention concerns a method for separating non-ferrous metals such as Zn and Pb from sludge containing iron, characterised in that it consists in the following operational steps: non-selective lixiviation of the iron-containing sludg...
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JP2002508028A |
A method for the recovery of iron products, specifically direct reduced iron and iron oxide suitable for use as the feedstock for steel mills, from industrial waste streams containing iron, by treating the waste streams with an ammonium ...
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JP2002069540A |
To reduce fluorine in a raw material coming into slag and to satisfy the elution reference of the fluorine from the slag when the fluorine-containing raw material is treated by using a high temperature furnace.When the slag is effectivel...
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JP2002060860A |
To provide an apparatus for efficiently recovering a volatile matter containing high concentration of zinc oxide at a low cost, by which a large quantity of iron-making dust can be treated when the zinc oxide is recovered from the iron-m...
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JP2002060851A |
To provide a heating efficiency-improved method for recovering, in a short time valuable metallic components such as zinc, iron, etc., contained in dusts by adding a carbonaceous material as the reducing agent of dusts developed in a met...
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JP3259739B2 |
PURPOSE: To effectively utilize simultaneously both an electric furnace dust and a reduced slag which are industrial wastes by fusing and mixing both electric furnace-discharged materials to make an oxidized slag. CONSTITUTION: The elect...
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JP2002030350A |
To provide a method for stably producing a crude zinc oxide-lead sintered lump hard to be softened or melted in a blast furnace without reducing the productivity of the sintered lump.In the method for producing a crude zinc oxide-lead si...
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JP3250331B2 |
PURPOSE: To make it possible to obtain the sintered ores having the crushing load equiv. to the crushing load in the case of calcination at a high temp. so as to obtain the sintered ores, many of which have 5 to 7mm grain sizes desirable...
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JP2002502435A |
PCT No. PCT/FR96/01202 Sec. 371 Date May 27, 1998 Sec. 102(e) Date May 27, 1998 PCT Filed Jul. 30, 1996 PCT Pub. No. WO97/06215 PCT Pub. Date Feb. 20, 1997A method for preparing inorganic pigments from steel mill dust, particularly elect...
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JP2002018394A |
To provide a treating method which enhances the recovering efficiency of heavy metals by suppressing the elution of the heavy metals while maintaining a high desalting effect in washing treatment of wastes such as dust.The treating metho...
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JP2002502466A |
Process and device for precipitating solid compounds from zinc metal baths. Partial amounts of the metal phase containing these compounds are exposed to an acceleration higher than gravity and dissociated into fractions containing heavie...
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JP2002011429A |
To provide a treatment process of heavy metals in waste which is excellent in recovery effect of lead, zinc and calcium in waste.This treatment process comprises: subjecting waste containing heavy metals to water washing treatment to obt...
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JP2001335857A |
To provide a removing device for zinc-containing deposition with which the deposition on the inner wall around the inlet of a zinc recovering device for rapidly cooling gas containing zinc vapor with water, can efficiently be removed.Thi...
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JP2001329320A |
To provide an inexpensive method for separating and recovering zinc and nickel from a plating waste solution containing zinc and nickel with high efficiency.In this method for separating and recovering zinc and nickel from a plating wast...
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JP2001323327A |
To provide a device and a method for recovering a valuable metal from liquid slag and dust from a steel making furnace, such as an EAF.A treating vessel 32 provided with a movable lower shell part 18 for receiving the liquid slag 16 from...
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JP2001303147A |
To effectively recycle waste plastics separated from non-industrial waste or industrial waste, or the like, as a resource by a simple method and to utilize the waste plastics containing chlorine-containing plastics without removing the c...
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JP2001294942A |
To obtain dust having high zinc concentration by removing harmful materials from the secondary dust low in zinc concentration, which is produced at the time of reducing steel dust and contains harmful material such as alkali metal and ha...
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JP3220477B2 |
PURPOSE:To provide cleaning method by which inclusion in a molten zinc base alloy can be efficiently removed. CONSTITUTION:By using a composition solution composed of ZnCl2 (65wt.%), NaCl (10wt.%) and NH4Cl (25wt.%), the surface of the s...
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JP2001283871A |
To provide a disposal method and its system which makes it possible to separate various metals contained in the waste cell roughly into a concentrated high volatile metal which is zinc, lead, cadmium, mercury or the like, a concentrated ...
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JP2001271124A |
To provide a method for recovering valuables in which a larger amount of Zn and Pb can efficiently be separated and recovered from fly ash. The method for recovering valuables in which zinc and lead are recovered from fly ash generated a...
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JP2001516395A |
The invention concerns a method of treating electric arc furnace (EAF) dust. In the method the dust is preheated and decontaminated under conditions which oxidize the magnetite content of the dust to hematite. Thereafter the preheated an...
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