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JPS6033175B2 |
PURPOSE:To recover valuable resources such as Zn and Pb from dust by charging the dust into an electric furnace which is in operation, closing a damper attached to a system consisting of the furnace and a dust collector for direct suctio...
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JPS6028895B2 |
PURPOSE:To immobilize residual harmful materials in slag and to make them unharmful by blowing an elution preventing material for lead ions such as blast furnace slag together with the pellets of electric furnace dust into molten slag an...
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JPS6028897B2 |
PURPOSE:To immobilize residual harmful materials in slag and to make them unharmful by blowing the pellets of electric furnace dust contg. reducing agents and a lead ion elution preventing material together with a bubbling gas into molte...
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JPS6028896B2 |
PURPOSE:To immobilize residual harmful materials in slag and to make them unharmful by blowing the pellets of electric furnace dust contg. reducing agents together with a bubbling gas into molten slag and recovering the evaporating oxide...
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JPS6028894B2 |
PURPOSE:To immobilize residual harmful materials in slag and to make them unharmful by blowing the pellets of electric furnace dust together with a bubbling gas into molten slag to allow reaction to progress quickly and recovering the ev...
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JPS60106583A |
A process for the treatment of an aqueous stream containing an acid or base and typically a precipitatable material such as a metal ion comprises: (a) subjecting the aqueous stream to (i) a treatment to produce a relatively pure stream o...
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JPS6024167B2 |
PURPOSE:To accelerate oxidation and enable to refine the molten lead to a high purity speedily by a method wherein an air suction pipe is provided in a circulating cylinder for the molten lead and air bubbles are mixed into the molten le...
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JPS6068395U |
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JPS6018731B2 |
A method comprising the steps of supplying a carbonaceous reducer in a layer onto the surface of molten slag and feeding an oxygen-free gas into said slag in an amount and at a rate ensuring recirculation of said slag with its outflow on...
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JPS6070149A |
PURPOSE: To remove Sb and Cu from regenerated solder contg. Sb and Cu as impurities by melting the solder in the air, adding a specified Al-Mg alloy, melting it, and carrying out agitation. CONSTITUTION: Regenerated solder contg. Sb and ...
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JPS6014087B2 |
The invention provides a process for extracting a base metal from a base metal bearing ore or concentrate which includes forming a slurry of the ore or concentrate with an electrolyte containing chloride ions and copper ions, oxygenating...
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JPS6011092B2 |
PURPOSE:To recover Zn and Pb by charging dust into an electric furnace which is in operation optionally after adding cinder, red mud, etc. to the dust, dividing a bag filter for direct suction from the furnace into 2 chambers, and collec...
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JPS602371B2 |
Hydro metallurgical process for treating a sulphide compound containing at least lead as a non-ferrous metal, characterized in that the sulphide compound is contacted with an aqueous solution containing at least one chloride selected fro...
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JPS5953335B2 |
1516127 Recovering metals from sulphide ores CYPRUS METALLURGICAL PROCESSES CORP 27 Aug 1975 [21 Oct 1974] 35281/75 Heading C1A Lead, silver and zinc values are recovered from sulphide ores or concentrates by chlorinating to convert the ...
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JPS59502029A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5949289B2 |
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JPS59211540A |
The invention relates to a method for producing lead from sulphidic lead raw-materiais by direct smelting processes of the kind in which the lead raw-materials are smelted autogenously in a shaft with the aid of oxygen gas, or air enrich...
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JPS59211538A |
The invention relates to a method for producing lead having a sulphur content beneath about 2%, from sulphur-containing oxidic lead raw materials contaminated with zinc and/or other readily oxidized elements, by smelting the materials in...
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JPS59211539A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5948939B2 |
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JPS59190220A |
The invention relates to a process for removing nickel from lead chloride dissolved into chloride brine to obtain lead chloride solution wherein the nickel concentration is under 50 mg/liter. The present invention comprises the following...
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JPS59177331A |
PURPOSE: To maintain a proper degree of reduction in a blast furnace for simultaneously smelting zinc and lead by measuring the oxygen potential in discharged slag when molten metal is discharged and by changing the value C/Zn in startin...
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JPS59177332A |
PURPOSE: To prevent discharging of the ore contg. Zn at a high rate in the end period of tapping by measuring successively the oxygen potential in the discharged ore in the stage of tapping, setting a specified reference and stopping the...
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JPS59173230A |
PURPOSE: To recover valuable metals such as zinc- or silver-contained in dust by inexpensively applying wet treatment to the dust in good efficiency, by removing the greater part of zinc by exuding the dust with a sulfuric acid solution ...
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JPS59162233A |
PURPOSE: To separate efficiently Bi and Cu in particular by leaching copper refining smoke ashes with a dilute sulfuric acid soln. having a prescribed concn., subjecting the same to a solid-liquid sepn., and filtering and separating the ...
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JPS5937336B2 |
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JPS59153846A |
The invention relates to a method for recovering lead from lead chloride raw materials, by reducing the lead chloride with gas in a reaction zone comprising one or more separate reaction chambers. The invention is characterised in that t...
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JPS59153848A |
PURPOSE: To recover metals in the dust using a simple installation and at a low operation cost by separating the metals in the dust by blowing the dust together with an exothermic agent into molten slag. CONSTITUTION: High-temp. slag 2 p...
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JPS5934219B2 |
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JPS59137307A |
PURPOSE: To recover high purity tellurium from an intermediate contg. tellurium produced during the smelting of lead or zinc by treating the intermediate by a specified method to prepare an aqueous soln. of tellurium having a relatively ...
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JPS5931578B2 |
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JPS59133338A |
Copper-bearing waste, e.g. brass works flue dust (71% Zn, 3½% Pb, 14% Cu) was mixed with dendritic zinc, and 80 g of the mixture was leached in 1 litre of 10M hot NaOH for 20 minutes. Dissolution of the copper was successfully held down...
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JPS5931188B2 |
The scrap is crushed and sepd. to obtain:- (a) harmful materials contg. chlorine, which are removed; (b) large pieces of lead; (c) organic materials obtd. from the accumulator housings; and (d) sulphate-oxide cpds. contg. lead. Fractions...
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JPS5928618B2 |
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JPS59110739A |
The invention relates to a method for selectively recovering the metal values of polymetallic sulphidic ore concentates that contain lead and/or gold and other precious metals. The concentrate is treated in the following combination of p...
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JPS5993795A |
1. Process for making synthesis gas (CO + H2 ) by subjecting fine-particulate materials rich in carbon to an autothermal gasification reaction with oxygen, wherein the material rich in carbon having a particle size of 0 - 0,1 mm is injec...
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JPS5920739B2 |
PURPOSE:To selectively remove arsenic from lead containing tin and arsenic without requiring a special apparatus and enhance the yield of tin by melting the lead; adding metallic iron and metallic copper; and agitating them to separate t...
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JPS5976833A |
(57) [Abstract] Since this gazette is application data in front of an electronic application, the data of an abstract is not recorded.
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JPS5916503B2 |
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JPS5916502B2 |
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JPS5916504B2 |
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JPS5964723A |
The invention is concerned with a method for the selective dissolution of lead in relation to zinc that is present as a sulphurized compound. The method comprises treating said compound to lixiviation with a solution containing ferrous c...
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JPS5964722A |
A process for the hydrometallurgical recovery of metal value, particularly copper, from copper-containing sulphide materials in which the material is conventionally ground and reacted with a solution containing less than 3 moles per litr...
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JPS5956536A |
The invention relates to the separation of elemental lead from blast furnace bullion containing a substantial amount of PbS in which sodium is introduced into lead bullion followed by control solidification which results in higher recove...
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JPS5956537A |
A process for the recovery of zinc from zinc-containing sulphidic material which also contains iron and from zinc oxide containing material, at least one of the materials containing lead and/or silver values. The process includes leachin...
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JPS5931835A |
The invention relates to a continuous method of removing tin from lead. The method comprises maintaining a pool of molten lead at a temperature of from 510°C to 570°C, introducing molten lead into the pool, injecting chlorine and oxyge...
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JPS596337A |
1. A method for separating nonferrous metals from ironoxide-containing residues by chlorination of the residues by means of elementary chlorine at an elevated temperature and cooling of the reaction gases with the sublimation of the subl...
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JPS58221237A |
A method for separating non-ferrous metals from ferruginous secondary substances such as residues and slurries from blast furnaces, steel mills, rolling mills, and the like. In accordance with the invention, a layer of the secondary subs...
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JPS58189339A |
There is disclosed a process for recovering metals of high commercial value from a sludge (1) containing lead, antimony, silver, arsenic, bismuth and copper, by a wet method, by treating (2) the sludge (1) with aqueous hydrochloric acid ...
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JPS5844728B2 |
The present invention relates to a process for the separation of three metallurgical phases by decantation.
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