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JP5770118B2 |
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...
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JP2015148008A |
To provide a recovery system of high purity indium by a molten salt refining electrolytic method of conductive ITO (InO-SnO) scrap which is a main material for liquid crystal.There is provided a recovery system of high purity indium incl...
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JP5764264B2 |
A method for leaching a sulfidic metal concentrate in hydrometallurgical production of metal in a leaching process from which hot water vapor containing off-gas is conducted out and to which an acid solution warmed up to an elevated temp...
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JP5762335B2 |
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 ...
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JP5742360B2 |
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...
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JP5729073B2 |
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...
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JP5722122B2 |
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...
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JP5719320B2 |
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...
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JP5699918B2 |
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...
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JP5690137B2 |
Device and method for separating metals and metal oxides thereof, in particular in nonferrous alloys, such as zinc. To this end, zinc residues (dross) is placed in a rotary drum and heated. After a certain treatment time, pure metal loca...
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JP5682567B2 |
In a hydrometallurgical plant of a nickel laterite ore having a plurality of lines of treatment facilities, the hydrometallurgical plant of the nickel laterite ore which is, even when a serious trouble will occur in said treatment facili...
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JP5676649B2 |
In a method for producing metal powder, the first part of an acid-containing starting solution is fed on the anode side of an electrolytic cell as anolyte, to contact the anode and supply material containing yield metal, and a second par...
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JP5661197B2 |
A process and a plant for treating ore concentrate particles containing valuable metal and having at least arsenic and sulfur containing components. The process comprises a two-stage roasting process comprising a first roasting step and ...
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JP5660248B1 |
To prevent a decrease in production amount by suppressing a decrease in a processing amount in the dezincification plant when starting up a dezincification plant used in a dezincification step of wet smelting of nickel, and to prevent a ...
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JP5632359B2 |
A method for producing nanostructures on a metal oxide substrate includes the following steps: a) forming metal aggregates on the metal oxide substrate; and b) vapor phase growing nanostructures on the metal oxide substrate covered with ...
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JP2014218697A |
To provide a method for producing zinc eliminating additional cost for dechlorination, suitable for treatment to an electric furnace or the like largely containing chlorine, capable of producing a zinc ground metal with high purity of pu...
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JP2014201793A |
To micronize scrap or ingot-shaped aluminum by a simple and safe method and to use the same for a reducing agent.Scrap or block-shaped aluminum is dissolved, is thereafter discharged from a heating furnace and is allowed to cool. The sur...
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JP2014525985A |
Methods for condensing metal vapors comprising directing a mixture of metal vapor and carrier gas into at least one inlet conduit are provided. Some methods comprise directing the mixture of metal vapor and carrier gas into a holding tan...
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JP2014173109A |
To provide an apparatus and a method which enable recovering and utilizing a zinc ingredient and coke powder contained in dust discharged from the cupola furnace body.A recovery apparatus includes: a first classifier which communicates w...
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JP2014173140A |
To provide a method for recycling converter dust, in which the converter dust, that is obtained by using zinc-containing dust as an iron source and generated by blowing, can be recovered easily and surely as a blast furnace raw material....
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JP2014521831A |
The instant invention relates to a binder composition for pelletization of fine mineral particles comprising a) at least one colloid agent which exerts a cohesive force on the mineral particles forming the pellets, and b) at least one sy...
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JP5576221B2 |
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...
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JP5576901B2 |
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...
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JP5572928B2 |
A hydrometallurgical process for a nickel oxide ore comprising obtaining an aqueous solution of crude nickel sulfate by high pressure acid leaching of a nickel oxide ore; obtaining a zinc free final solution by sulfurization of the solut...
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JP5571345B2 |
Disclosed is a method for producing briquettes, by which briquettes having enhanced strength can be produced even when the amount of a binder used therefor is reduced as much as possible. Specifically disclosed is a method for producing ...
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JP5565354B2 |
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...
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JP5567564B2 |
A method of production of Zinc dust, which includes melting Zinc products in a melting furnace on a semi-continuous basis, transferring at least a part of the molten Zinc products to a vaporizing furnace, vaporizing the molten Zinc in th...
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JP5566562B2 |
A method for agglomerating and sintering iron and zinc ore and ore concentrates, steel mill ferrous waste and zinc mill waste. The method has the steps: a) mixing the wastes or ore with a combustion fuel source, and a sinter agglomeratio...
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JP5563093B2 |
The invention relates to a method for removing chloride from zinc sulphate solution in conjunction with zinc production. According to the method, the chloride is removed from solution by means of monovalent copper, which is produced in a...
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JP5563763B2 |
A process is described for leaching a value metal from an ore containing said value metal, the process including the steps of leaching the ore in the presence of hydrochloric acid so as to form a soluble metal-chloride salt in a leach so...
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JP5554478B2 |
To manufacture briquettes with enhanced strength even if reducing consumption of a binder and water to the utmost. The method includes a step for forming primary particulates using the metal oxide powder containing iron oxide and at leas...
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JP5554481B2 |
To manufacture briquettes with increased strength, even when using minimal quantities of binder and water. The briquette manufacturing method includes a process where an iron oxide raw material and/or a carbonaceous substance are crushed...
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JP5541736B2 |
Obtained are a method and an apparatus for recovering a metal from electric furnace dust, which are capable of recovering the metal with high efficiency without causing problems such as occlusion of the apparatus. An apparatus (1) for re...
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JP5540574B2 |
To provide a metal recovering method in which, when valuable metal-containing waste water is fed to a chelating resin column to allow ions of the metal to be adsorbed and then the metal ions adsorbed by the chelating resin are eluted for...
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JP5533076B2 |
To provide a method in which metal included in raw ore or mineral concentrate of low quality or a solid waste material in an iron mill is leached at low cost, at high speed and at high efficiency so as to be recovered, and, particularly,...
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JP5512771B2 |
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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JP5512482B2 |
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...
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JPWO2012073712A1 |
To provide a method and an apparatus for supplying zinc gas overheated above the boiling point of zinc at a controlled supply rate. In the method of supplying zinc gas of the present invention, a step of introducing molten zinc into a zi...
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JP2014510841A |
The zinc concentrate is subjected to the following stages: a. Roasting of at least part of the zinc concentrate. b. Neutral leaching where zinc oxide is dissolved. c. Acid leaching where zinc ferrites are leached. d. Reduction of the Fe ...
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JP5481966B2 |
Disclosed is a method for efficiently and economically separating and recovering elements, such as copper, that coexist in scrap iron, wherein scrap iron is melted and the molten product of scrap iron obtained is brought into contact wit...
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JP5471054B2 |
A method for water and metal recovery from a plating wastewater resulting from washing is disclosed with which water and metals are efficiently recovered from the plating wastewater, the method comprising an iron insolubilization step in...
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JP2014506959A |
The invention relates to a method for the removal of coatings from scrap materials (3), wherein the scrap (3) is brought into contact with a liquid and, while the coating removal process is performed, moves within a conveying trough (2) ...
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JP5444024B2 |
To provide a method for efficiently recovering an iron and a zinc at a low cost from a waste galvanizing liquid by an economic method. The problem is solved by the method for recycling the waste galvanizing liquid, and the method include...
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JP5444821B2 |
To recover manganese oxide from a dry cell by a low-cost method. The method of recovering manganese oxide from a dry cell includes: a crushing/sieving treatment process of crushing and then sieving the dry cell and obtaining a crushed ma...
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JP2014046264A |
To provide an ion exchanger having thermostability and durability for use at high temperature under presence of water and a collection method capable of collecting useful metals and toxic metals at high temperature.An ion exchanger is ob...
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JP5440822B1 |
To provide a heat exchanger capable of efficiently discharging dusts generated from exhaust gas with temperature reduction, and an operation method thereof.A heat exchanger includes: a first element in which the flow passage of exhaust g...
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JP5433994B2 |
To improve a concentration of zinc in dust without increasing production cost while performing stable operation, in a method of producing molten metal by melting iron-based scrap by using a vertical melting furnace. Shredded iron-based s...
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JP5435058B2 |
The purpose of the present invention is to provide a method capable of improving the filterability in separating a zinc sulfide produced by applying sulfurization treatment to a post-neutralization solution containing zinc together with ...
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JP2014037562A |
To provide a production method of high purity zinc vapor in which even when being a solid crude zinc including As and/Sb as an impurity element, contents of As and/or Sb can be reduced.A production method of zinc vapor includes a process...
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JP5428534B2 |
In a method for producing pig iron using iron ore with a high content of zinc, a blast furnace raw material 2 is produced using iron ore with a high content of zinc which contains 0.01 mass % or more of zinc and 50 mass % or more of iron...
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