ФЬЮМИНГ-ПЕЧЬ С ФУНКЦИЕЙ СБОРА И ВЫПУСКА СВИНЦА

Изобретение относится к фьюминг-печи для обработки содержащих свинец материалов с возможностью сбора и выпуска свинца. Фьюминг-печь содержит корпус, в котором размещены горн с фурмой, на дне горна образуется ванна расплава, в корпусе печи выполнены отверстие для выпуска шлака и отверстие для выпуска свинца, корпус печи имеет кожух водяного охлаждения днища печи и кожух водяного охлаждения горна печи, внутренняя стенка кожуха водяного охлаждения днища печи снабжена слоем огнеупорного кирпича с выполненным в нем каналом для сбора и выпуска свинца, соединенным с отверстием для выпуска свинца и включающим линейный основной канал и кольцевой или линейный ответвляющиеся каналы, соединенные с основным каналом, при этом канал сбора и выпуска свинца соединен с ванной расплава через стыки между огнеупорными кирпичами, образующими слой огнеупорного кирпича. Обеспечивается предотвращение накопления осевшего свинца на дне ванны, которое может вызвать разрушение корпуса печи и возможность обработки материалов ...

СПОСОБ ИЗВЛЕЧЕНИЯ СВИНЦА ИЗ СВИНЕЦСОДЕРЖАЩЕГО СЫРЬЯ

FIELD: nonferrous metallurgy. SUBSTANCE: method includes of molten potassium hydroxide, lead-containing raw material and oxygen-containing gas to reaction zone with temperature of 600-700 C. Process results in obtaining black lead and melt including potassium hydroxide, potassium sulfate, potassium carbonate, sulfides of zinc, copper, iron and barren rock. Melt is withdrawn from reaction zone and subjected to the first aqueous leaching which results in suspension in the form of mixture of solid particles of potassium sulfate, potassium carbonate, sulfides of zinc, copper, iron and barren rock and aqueous solution containing potassium hydroxide. The suspension is filtered to obtain solution containing potassium hydroxide and solid residue. Solution of potassium hydroxide is directed for evaporation and melt of potassium hydroxide resulted from evaporation is supplied to reaction zone. Solid residue, after the first stage of leaching and washing, for instance, on filter is subjected to operation of the second aqueous leaching. Supplied for the second aqueous leaching is reusable solution and sulfuric acid, and pH is maintained within 6-8. The second aqueous leaching results in obtaining suspension which is filtered to produce cake containing solid particles of sulfides of zinc, copper, iron and barren rock. Cake is subjected to washing with water and withdrawn from process. Saturated aqueous solution of potassium sulfate is used for producing crystals which are also withdrawn from the process. Mother solution from crystallization of potassium sulfate is combined with water after washing of cake and directed for the second leaching. EFFECT: simplified process, reduced energy consumption and higher efficiency. 2 cl, 2 tbl УДС ТС ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ЗВО”” 21314 474 Сл (51) МПК С 22В 13/00 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 98117450/02, 23.09.1998 (46) Дата публикации: 10.06.1999 (56) Ссылки: ЕР ...

Способ переработки окисленных свинцово-цинковых руд

Изобретение относится к развитию комбинированной технологии обогащения окисленных свинцово-цинковых руд на основе сульфидизирующего обжига в атмосфере водяного пара и может быть использовано при подготовке окисленных свинцово-цинковых руд разного генезиса к флотации. Переработка окисленных свинцово-цинковых руд включает сульфидизирующий обжиг окисленных свинцово-цинковых руд с сульфидизатором в атмосфере водяного пара. В качестве сульфидизатора используют сульфидную свинцово-цинковую руду, в том числе труднообогатимую, того же месторождения. Способ позволяет повысить содержание свинца и цинка в шихте. 4 пр.

СПОСОБ ПОЛУЧЕНИЯ ЛЕГКОИСПАРЯЮЩИХСЯ МЕТАЛЛОВ, ТАКИХ КАК ЦИНК, СВИНЕЦ И КАДМИЙ, ИЗ СУЛЬФИДНОГО СЫРЬЯ

FIELD: pyrometallurgical processes. SUBSTANCE: zinc sulfide concentrate is fed into copper smelt at 1450- 1800 C and atmosphere pressure. Under such conditions, zinc, lead, and cadmium are vaporized, whereas iron and copper remain in fusion or in metal sulfide matte formed in furnace. As reducing furnace, electric one is used. Sulfide raw stuff is introduced into copper smelt with gas carrier. Copper smelt is purified by blown in inert gas. Sulfide matte, prior to be loaded into oxidation reactor, is purified by inert gas. As gas carrier, nitrogen is used. Vaporized zinc and other metals are transferred into condensation or distillation reactor. Before introducing vaporized metals into distillation reactor, metal smelt containing zinc and/or lead is injected into gas phase containing metal vapors. From reduction furnace, sulfide matte in amount stoichiometric in respect to sulfide raw stuff is removed and loaded into oxidation reactor. EFFECT: enhanced efficiency of process. 11 cl, 2 dwg Э6УуЕ60с ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 091 496. 13) Сл С 22 В 5/08 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93044975/02, 12.05.1993 (30) Приоритет: 20.05.1992 Е| 922301 (46) Дата публикации: 27.09.1997 (56) Ссылки: Патент США М 3463630, кл. С 22 В 19/04, 1969. (71) Заявитель: Оутокумпу Рисерч Ой (Е!) (72) Изобретатель: Тимо Тапани Талонен[РП, Хеикки Йорма Ээрола[Е!] (73) Патентообладатель: Оутокумпу Рисерч Ой (Е) (54) СПОСОБ ПОЛУЧЕНИЯ ЛЕГКОИСПАРЯЮЩИХСЯ МЕТАЛЛОВ, ТАКИХ КАК ЦИНК, СВИНЕЦ И КАДМИЙ, ИЗ СУЛЬФИДНОГО СЫРЬЯ (57) Реферат: Использование способы получения цинка, кадмия, свинца и других легкоиспаряющихся металлов из сульфидного сырья в пирометаллургическом процессе. Сущность изобретения: в способе концентрат сульфида цинка подают в расплав меди при температуре 1450-1800°С и атмосферном давлении. При этом цинк, свинец и кадмий испаряются, а железо и медь остаются в расплаве металла или в штейне ...

ЭЛЕКТРИЧЕСКАЯ ПЕЧЬ, В ЧАСТНОСТИ, ДЛЯ ПОЛУЧЕНИЯ ОКСИДА СВИНЦА ОБЖИГОМ МАССИКОТА

Использование: изобретение относится к конструкции печи для производства окиси свинца. Сущность: печь имеет теплоизолированный трубчатый корпус, содержащий по всей его длине вал с лопастями, действующими в качестве шнека. Трубчатый корпус расположен соосно с индукционной катушкой, нагревающей его. Исходный материал в порошковой форме (т.е. массикот) загружают на входе трубчатого корпуса и перемещают посредством вала с лопастями до выхода из печи, расположенного на противоположной стороне трубчатого корпуса печи. Вал установлен с возможностью смещения относительно оси печи, лопасти в зоне входа и в зоне между входом и выходом расположены с образованием простого винта, а в зоне выхода и отверстия для выгрузки - с образованием двойного винта. 15 з.п. ф-лы, 6 ил.

СПОСОБ ГИДРОМЕТАЛЛУРГИЧЕСКОЙ ПЕРЕРАБОТКИ ЩЕЛОЧНОГО СУЛЬФИДНО-СУЛЬФАТНОГО ПЛАВА ОТ ПЛАВКИ СВИНЦОВОГО КОНЦЕНТРАТА

Использование: гидрометаллургия цветных металлов, в частности способы переработки щелочного сульфидно-сульфатного плава, например, полученного от плавки свинцового концентрата с щелочью или содой. Сущность: щелочной сульфидно-сульфатный плав, полученный от плавки свинцового концентрата, подвергают окислению для перевода сульфидов и тиосульфатов натрия в сульфат натрия, после чего осуществляют выщелачивание плава щелочью в две стадии: на первой стадии поддерживают концентрацию щелочи 450-350 г/см3, на второй 150-170 г/дм3, раствор от первой стадии выщелачивания направляют на выпарку и производство щелочи, а от второй на электродиализ для вывода из процесса сульфат-иона в виде серной кислоты и воспроизводства щелочи, которую направляют на выщелачивание исходного плава. 1 з. п. ф-лы, 1 ил. 2 табл.

ФЬЮМИНГ-ПЕЧЬ С ФУНКЦИЕЙ СБОРА И ВЫПУСКА СВИНЦА

DIREKTES SCHMELZVERFAHREN FUER SULFIDISCHE ERZE.

SAUERSTOFF-SCHMELZEN

Verfahren zur Gewinnung von Blei aus Bleiglanz nach dem Roestreaktionsverfahren

Metalldampfkondensator mit der Möglichkeit Flüssigmetall umzuwälzen.

Verfahren zur unmittelbaren Gewinnung von Blei

Lead-melting furnace for cable sheathing extrusion and the like

... 912,157. Discharging molten metal. BETEILIGUNGSUND PATENTVERWALTUNGSGESELLSCHAFT. July 29, 1960 [Aug. 1, 1959], No. 26479/60. Class 51 (2). [Also in Group XXII] A lead melting furnace for an extrusion process comprises a crucible 1, an outlet member 5 welded to the crucible, which member has a removable lining 6 and is closed by a valve 7, and pipes and joints 8, 9 and 10 which lead from the outlet 5 and may be dismantled for cleaning when the outlet is closed. In a modification, Fig. 2 (not shown), the valve 7 has an axial bore through which a cutting tool may be passed to clean the outlet lining 6.

PYROMETALLURGICAL SMELTING OF LEAD AND COPPER

VERFAHREN ZUM ABTRENNEN VON NICHTEISENMETALLEN AUS EISENHALTIGEN SEKUNDAERSTOFFEN

DIRECT FUSION PROCEDURE FOR SULFIDI ORES.

DIRECT SMELTING PROCESS FOR SULFIDE ORES

REFINING OF LEAD BY RECOVERY OF MATERIALS CONTAINING TIN OR ZINC

COOLING GASES FROM NON-FERROUS METAL TREATMENT PLANT

RECOVERING METAL CONTENT FROM COMPLEX SULPHIDIC RAW MATERIALS

PROCESS FOR VOLATISING ZINC AND WHEN PRESENT LEAD CORPORATION

RECOVERING LEAD FROM SULPHIDIC RAW MATERIAL

RECOVERY OF LEAD FROM A LEAD-BEARING SULPHIDE CONCENTRATE

LOW TEMPERATURE, NON-SO.SUB.2 POLLUTING, KETTLE PROCESS FOR SEPARATION OF LEAD FROM LEAD SULFIDE- CONTAINING MATERIAL

AUTOGENOUS SMELTING OF LEAD IN A TOP BLOWN ROTARY CONVERTER

PROCESS OF BLOWING HIGH-OXYGEN GASES INTO A MOLTEN BATH WHICH CONTAINS NON-FERROUS METALS

PYROMETALLURGICAL SMELTING OF LEAD AND COPPER

SEPARATION OF THREE METALLURGICAL PHASES BY DECANTATION

A process for the separation of three metallurgical phases, particularly lead phases, by decantation, in which the phases are first separated by gravity into low, high and intermediate density phases. The intermediate and high density phases are transferred to a second vessel while the low density phase is decanted over a weir. The intermediate and high density phases flow over a weir which is provided in the second vessel at a level L above the top (L') of the passage from the first vessel such that where g1, g2 and g3 are the densities of the low, intermediate and high density phases respectively, (h1 + h2) is the difference between the level of the first weir and L', h1 is the desired layer thickness of the low density phase and h2 is positive.

ELECTRIC SMELTING OF LEAD SULPHATE RESIDUES

ELECTRIC SMELTING OF LEAD SULPHATE RESIDUES A process for treatment, without prior sintering, of lead residues in which more than 70% of the lead is present as lead sulphates comprising addition of the said residues, together with a reductant containing carbon, and together with fluxes that will react to provide a slag containing FeO, CaO and SiO2, directly to an electric furnace operating at a temperature of 1000 to 1500.degree.C in the slag layer, to produce in the furnace a lead bullion. A high grade lead bullion is obtained containing the major proportions of the lead, along with any precious metals present in the residues.

PROCESS FOR RECOVERY OF SELECTED METAL VALUES FROM WASTE WATERS

... - A process for economically recovering metal values, especially precious metal values, from waste waters comprising a mixture of natural surface water, industrial waste water and organic waste, where the metal values appear in concentrations below levels previously commercially of interest, including the steps of concentrating the metal values of the waste waters by bacterial treatment thereof to imbibe and capture the metal values from the waters and immobilize them in a sludge, coagulating and separating the sludge from the water, de-watering the sludge and burning off the organic matter, and recovering selected metal values by inorganic metal-winning process steps.

PYROMETALLURGICAL PROCESS FOR LEAD REFINING

A process is provided for obtaining lead bullion by the reduction of sintered ore which is produced by sintering materials including lead concentrate, said process being characterized in that zinc removed tailings are mixed into said materials, whereby the productivity of the pyrometallurgical lead refining may be improved and valuable metals may also be recovered from the zinc removed tailings.

ELECTRIC SMELTING OF LEAD SULPHATE RESIDUES

MANUFACTURE OF LEAD FROM SULPHIDIC LEAD RAW MATERIAL

KILN IN PARTICULAR FOR PRODUCING LITHARGE BY MEANS OF THE CALCINATION OF MASSICOT

... "KILN IN PARTICULAR FOR PRODUCING LITHARGE BY MEANS OF THE CALCINATION OF MASSICOT" The kiln (1) for producing litharge has a thermally insulated tubular body (2) containing, throughout its length, a shaft (30) with paddles acting as an auger. The tubular body (2) is coaxial with an induction coil (11), which heats it. The raw material in powder form (i.e., the massicot) is charged at a first head (9) of the tubular body (2) and is moved forwards by the paddle shaft (30), until it reaches the second head (10), opposite to the first one (9). During the translation the material (massicot) is heated and is oxidated, being converted into litharge.

Verfahren zur Gewinnung des im Erdreich verschossenen Bleies, insbesondere an Schiessstätten.

Verfahren zur Gewinnung von Blei

Procédé d'extraction directe d'un métal à partir de son sulfure.

Procédé et appareil pour la récupération de métaux ou alliages.

ВОССТАНОВЛЕНИЕ СВИНЦОВОГО ШЛАКА

Способ восстановления свинцового шлака, в котором шлак подвергают обработке путем инжекции через верхнюю погруженную фурму кислородсодержащего газа и топлива, причем нижняя головка вертикально подвешенной фурмы погружена в шлак. В результате инжекции в шлаке формируется зона горения, в которой горит топливо, и создается турбулентный режим, способствующий образованию на нижней части фурмы шлакового покрытия, отверждающегося в результате охлаждающего действия инжектируемого газа. Инжекцию осуществляют в восстановительных условиях, используя в качестве восстановителя сульфидный материал, с целью восстановления свинца шлака до металлического свинца и, тем самым, получения фазы расплавленного свинца, которая может быть выпущена в виде слитка сырого свинца.

METHOD AND SYSTEM OF RECOVERING ZINC FROM LOW SORTNOI LEAD - ZINC ORE

ВОССТАНОВЛЕНИЕ СВИНЦОВОГО ШЛАКА

Способ восстановления свинцового шлака, в котором шлак подвергают обработке путем инжекции через верхнюю погруженную фурму кислородсодержащего газа и топлива, причем нижняя головка вертикально подвешенной фурмы погружена в шлак. В результате инжекции в шлаке формируется зона горения, в которой горит топливо, и создается турбулентный режим, способствующий образованию на нижней части фурмы шлакового покрытия, отверждающегося в результате охлаждающего действия инжектируемого газа. Инжекцию осуществляют в восстановительных условиях, используя в качестве восстановителя сульфидный материал, с целью восстановления свинца шлака до металлического свинца и, тем самым, получения фазы расплавленного свинца, которая может быть выпущена в виде слитка сырого свинца.

Improvements with the extraction of lead

Process of ore processing of related lead, zinc and other metals, as well as filths, metallurgical ashes and residues being able to contain these metals

Process of separation of lead and zinc

Smelting and reduction of oxidic and sulphated lead material

Process of lead recovery, coming in particular from the active matter of batteries worn and fourelectric in particular intended to implement the process

METALLURGICAL PROCESS OF DECANTATION

Method of treating ores poor complex

PROCEEDED OF TREATMENT OF ZINC SULPHIDES AND LEAD ORE OR LEAD SULPHIDES ORES AND/OR OF THEIR CONCENTRATE

PYROMETALLURGICAL PROCESS OF FUSION OF LEAD AND COPPER

RECOVERY METHOD OF COPPER AND LEAD-TIN-BASED ALLOY MATERIAL

The present invention relates to a recovery method of a copper and lead-tin-based alloy material and a device for performing the same. The recovery method comprises a step of separating a copper and lead-tin-based alloy material by heat treating a compound having a capsule layer that has a lead-tin oxide surrounding a copper core in a methane gas atmosphere. COPYRIGHT KIPO 2018 ...

CONTINUOUS PROCESS OF SMELTING METALLIC LEAD DIRECTLY FROM LEAD-AND SULFUR-CONTAINING MATERIALS

Continuous direct smelting of metallic Pb from S-contg. Pb materials in an elongated horizontal reactor operates at a low and constant temp. and prevents undercooling. Slag and Pb phases flow in countercurrent and O2 is blown into the molten bath from below. Pb- and S-contg. materials are charged at controlled rates on to the bath in the oxidizing zone (O) on the side where Pb is tapped, while redn. agents are charged on the other side where the slag is tapped. Temp. of bath in the reducing zone (R) is maintained at a constant level by a controlled supply of additional heat. Copyright 1997 KIPO ...

PROCESS FOR THE INSUFFLATION OF GASES WITH HIGH TEXT OF OXYGEN IN A FUSING BATH I CONTEND METALS NAO-FERROSOS

PROCESS OF SMELTING LEAD-SULFID ORES.

PROCESS OF SEPARATING ZINC AND LEAD FROM MIXED SULFIDS.

Pyrometallurgical smelting of lead and copper

A method of smelting an oxide charge containing lead and copper in a blast furnace, wherein molten lead bullion flowing to the furnace bottom and containing at least 8% by weight of copper is diluted with metallic lead of lower copper content in the furnace shaft, or in the hearth at the bottom of the furnace, or in a forehearth into which furnace products are passed from the furnace, or in a transfer ladle into which lead bullion passes from the forehearth.

Process for recovering lead from lead-containing raw materials

There is proposed a process for recovering lead, comprising the steps of: feeding molten caustic soda, lead-containing feed and an oxygen-containing gas into a reaction some having a temperature of 600 DEG to 700 DEG C. as a result of which there are obtained lead metal withdrawn from the process and a melt containing sodium sulphate, zinc and copper sulphides, and gangue. The melt is discharged from the reaction zone of subjected to a first leaching operation to obtain, as a result, a slurry representing a mixture of solid particles of sodium sulphate, zinc and copper sulphides, gangue and an aqueous solution containing essentially caustic soda. Further on, the slurry is filtered to produce a concentrated aqueous solution containing essentially caustic soda and a solid residue. The concentrated caustic soda solution is subjected to thickening by evaporation and the resulting caustic soda melt is fed into the reaction zone. The solid residue is subjected to a second leaching operation to ...

Tank furnace for the metallurgical treatment of non-ferrous metals

A tank furnace for the metallurgical treatment of non-ferrous metals, consisting of a refractory hearth in the form of an inverted arch disposed on perimetral plate assemblies which are able to move in order to compensate for hearth expansion, a containing belt formed of metal box elements, and walls and a crown of refractory material, said elements being separately supported by an external frame and being able to slide relative to each other due to thermal expansion.

A method for recovering lead from waste lead products

The invention relates to a method for recovering lead and lead-alloying elements from bettery-type lead waste products, and fractions thereof, such as battery mud, and similar oxidic-sulphatic materials. In accordance with the method, the waste products, together with a solid reduction agent, are introduced to a furnace in which the contents thereof can be vigorously agitated. The amount of solid reduction agent charged is selected so as to ensure the chemical reduction of substantially all the non-metallic lead contained by the waste products, and the alloying elements present therein. The material charged to the furnace is heated to a temperature of between about 1050°C and 1250°C, while vigorously agitating the furnace contents, so as to melt, split-off and chemically reduce the waste products, to form a lead melt containing the aforementioned alloying elements. The furnace used is preferably a top-blown rotary converter of the Kaldo type, in which the furnace contents can be agitated ...

Method and apparatus for reclaiming metal values from electric arc furnace flue dust and sludge and rendering residual solids recyclable or non-hazardous

ELECTROTHERMAL BATH FURNACE FOR METALLURGICAL TREATMENT OF NON-FERROUS METALS

Lead, zinc and copper sepn - for sulphide concentrates by fluidized bed smelting

Pb, Cu and Zn can be sepd from zinc and lead sulphide concentrates with a high Cu content and from copper sulphide concentrates with a high Pb and Zn content by a fluidized bed smelting process. The carge, of certain size distribution dried to 0.5% humidity max. and mixed with flux, is blown through the central tube of a burner. Concentric tubes admit combustion air and methane at velocities to ensure a temp. of 1350-1550 degrees C needed for instantaneous smelting of the charges.

A METHOD FOR PRODUCING LEAD FROM SULPHIDIC LEAD RAW MATERIAL

VERFAHREN ZUM VERHUETTEN ANTIMONHALTIGER BLEIREICHER VORSTOFFE

THE MANUFACTURE OF LEAD FROM SULPHIDIC LEAD RAW MATERIAL

Verfahren zur Herstellung von metallischem Blei aus bleioxydhaltigem Material

PYROMETALLURGISCHES VERFAHREN ZUM GEWINNEN VON BLEI

Pyrometallurgical prodn of lead - in which zinc mfg residues are added to the concentrate to increase removal of sulphur

In a pyrometallurgical process for the winning of lead by redn. of sintered ore obtd. from the sintering of substances including lead concentrate, the novelty is that prior to sintering, residues from zinc prodn. are mixed with the substances. Sintering pref. occurs in a fluidised bed furnace after a roasting treatment, and the zinc residues are pref. added between roasting and sintering; alternatively, roasting and sintering are undertaken in one furnace continuously. A mixt. of 1 part Pb concentrate, 0.15-0.2 pts Zn residue, 0.04-0.05 pts. siliceous stone, 0.1-0.15 pts limestone, 2.5 pts. returned powder, and 0.3-0.5 pts. Pb shaft furnace slag, is pref. pelletised, then sintered. The Zn residues pref. contain Au, Ag, Cu, Fe, Si, C, and Zn. The zinc residues have a favourable effect on sintering, reducing the % sulphur in the product and increasing the output. Also, the precious metals in the residue are recovered.

A METHOD OF MANUFACTURING AND REFINING CRUDE LEAD FROM ARSENIC-CONTAINING LEAD RAW-MATERIALS

VERFAHREN ZUM GEWINNEN VON METALLEN

Vorrichtung zur Rückgewinnung der Wärme und zum Reinigen der Abgase bei Nichteisen-Metallbehandlungsanlagen

Verfahren zum Betrieb eines Blei-Schachtofens

Selbstgaengiges Bleischmelzen

METHOD AND APPARATUS FOR SIMULTANEOUSLY SEPARATING VOLATILE AND NON-VOLATILE METALS

A method and apparatus for simultaneously separating volatile metals, including zinc and lead, and non-volatile metals, including copper, from mixtures of metallic and metallic oxide and the like materials, includes a reactor having a lower, reactor, chamber, an upper, reflux, chamber and a vertically arranged, hollow shaft interconnecting the two chambers. The shaft is substantially filled with a mixture of pieces of metallic material, having minimal oxide content, and carbonaceous material, such as coke. The reactor chamber is intensely heated by a transferred arc plasma generator to provide sufficient heat energy which together with reducing gases cause a reducing reaction and melt the non-volatile copper and other metals which form a puddle upon the floor of the reaction chamber and to form a layer of slag covering the puddle, and simultaneously to vaporize the volatile zinc, lead and the like metals. The reflux chamber is maintained at a temperature and vapor pressure suitable to condense ...

METHOD OF DETROYING CHLORINATED HYDROCARBONS.

Process for treating a particulate material containing zinc and lead

A process for recovering or concentrating Zn and Pb from primary or secondary raw materials, admixed with coal, the coal being partially burnt to produce CO, is carried out in two stages, during the first of which there is direct reduction of the material due to the effect of the coal and volatilization of zinc and of lead oxide, whereas in the second stage there is an oxidation in the vapour phase of the zinc produced in the first stage by the action of air and/or oxygen. An apparatus for carrying out the process is a reactor having a frustoconical outline and comprising a metal casing (2) internally lined with a refractory material (3) and rotated about its geometrically arranged vertical axis (1), the reactor being equipped with a bottom drain hole (5), for liquid material. ...

Matte converters.

A molten metal matte low in iron is oxidized by blasting oxygen or air into the metal layer to produce raw metal.

RECLAMATION OF LEAD-ACID STORAGE BATTERIES

... 1,208,150. Recovering lead from scrap. M. SCHOELD. July 11, 1968 [July 20, 1967], No.33194/68. Heading C7D. Materials are recovered from the scrap from lead-acid storage batteries containing lead foil, cellulosic paper, sulphuric acid and lead oxide and/or lead sulphate by feeding the scrap to a reaction zone, in the substantial absence of Sb, where they are heated (e.g. by electric resistance heating) to reduce the lead compounds and dissociate the H2 SO4 , the reaction zone being shielded from the entry of oxidizing gases and molten lead being withdrawn at one exit and a gaseous mixture of H2O, CO2 and SO3 at another. The amount of carbon in the paper in the scrap is preferably stoichiometric to reduce the lead compounds.

Improvements in or relating to the recovery of metallic lead

Lead is recovered from a lead product, especially a by-product, in the manufacture of tetraalkyllead compound by reacting on alkyl chloride with lead monosodium alloy, which contains finely divided metallic lead, water and lesser amounts of PbO and PbS, by mixing the lead product with 0.4-1.2% by weight NaOH based on the metallic lead, drying the mixture by heating it at 100-160 DEG C. with agitation until the water content is reduced to 1-6% by weight, heating the dried mixture in a reverberatory furnace at 650-1200 DEG C. to melt the lead and convert PbO and PbS to metallic lead, and separating the molten lead from the reaction mixture. The lead product usually consists of by weight 76-89% of finely divided metallic lead, 9-19% of water, 0-0.05% NaOH, up to 2% total of PbO and PbS and 0-4.5% total of graphite and aluminium hydroxide (latter present when by-product of tetramethyllead). The NaOH may be mixed with the lead product in the form of an aqueous solution or as anhydrous flake.

Improved process for treating compound minerals and apparatus therefor

... 169,990. Dubreul, G. Freydier-. Oct. 5, 1920, [Convention date]. Matte and other dry processes of extracting metals; treating ores to remove volatile constituents; distilling metals.-Complex ores are melted with fluxes in a furnace: oxides of antimony, arsenic, &c., are volatilized and recovered, and the molten product is discharged into the middle one of three compartments of a separator k, the compartments being separated by partitions so arranged that the heavy metals, matte, &c., pass into one side compartment from which they are discharged, while the lighter parts pass to the other side compartment and thence through a passage o to a reduction furnace f. A blast consisting of powdered wood charcoal and carbon monoxide is supplied to the furnace through tuyeres j, volatile metals such as zinc escaping through an outlet h, and the molten product being passed through a separator p. The furnace f and the separators k, p, may be externally heated, and the furnace a may be electric. The ...

PROCESS FOR VOLATILIZING ZINC

TO ROLL OVER METAL STEAM CONDENSER WITH THE POSSIBILITY LIQUID METAL.

VERFAHREN ZUR VERARBEITUNG VON AKKUMULATOREN -SCHROTTBLEI

USE OF LEAD SPLINTERS IN ABRASION CRUSHING EQUIPMENT FOR THE PRODUCTION OF LEAD OXIDE

PROCEDURE FOR THE PRODUCTION OF LEAD FROM SULFIDI LEAD RAW MATERIAL.

PRODUCTION OF LEAD FROM BLEISULFIDI RAW MATERIAL.

PROCEDURE FOR THE CONTINUOUS DIRECT ONE MELTS OF METALLIC LEAD FROM SCHWEFELHALTIGEN LEAD MATERIALS.

PROCEDURE FOR THE CONTINUOUS DIRECT ONE MELTS OF METALLIC LEAD FROM SULFIDI LEAD CONCENTRATES.

PROCEDURE AND PLANT FOR THE DIRECT REDUCTION PROCESS OF TEILCHENFÖRMIGEM EISENOXIDHÄLTIGEM MATERIAL

Recovery of non-ferrous metals from zinc residues

RECOVERY OF LEAD

Method for producing easily volatile metals, such as zinc, lead and cadmium, of sulphidic raw materials

Metal Recovery Process

A process for recovering a metal chloride or mixed metal chloride from a solid waste material comprising recoverable metal containing constituents produced by lead, copper or zinc smelting and refining processes, said process comprising the steps of: (i) heating the solid waste material; (ii) treating the heated material of step (i) with a gaseous chloride to form a gaseous metal chloride containing product; and (iii) treating the gaseous metal chloride containing product of step (ii) to recover the metal chloride or mixed metal chloride. The metal chloride may be further treated to extract the metal itself.

Dross Removal

This invention relates to for devices, systems, and methods for separating dross, carried by molten solder, into solder and residue.

METHOD AND APPARATUS FOR RECOVERING COPPER, BRONZE AND LEAD FROM MIXTURE OF COPPER OXIDE, TIN OXIDE AND LEAD OXIDE

The present invention relates to a method and an apparatus for recovering copper, bronze and lead by allowing methane gas to flow into a reactor and heat-treating a mixture of copper oxide, tin oxide and lead oxide under a temperature condition of 700-900° C., and comprises the steps of: placing a mixture of copper oxide, tin oxide and lead oxide in a reactor; increasing the temperature inside the reactor; and allowing a reductive gas to flow into the reactor so as to heat-treat the mixture. 1. A method for recovering copper , bronze and lead from a mixture of copper oxide , tin oxide and lead oxide , the method comprising:placing a mixture of copper oxide, tin oxide and lead oxide into a reactor;raising a temperature inside the reactor; andintroducing reductive gas into the reactor and heat-treating the mixture.2. The method of claim 1 , wherein the reductive gas includes methane gas.3. The method of claim 1 , wherein the heat-treatment is carried out at 700° C. to 900° C.4. The method of claim 1 , wherein raising the temperature includes introducing nitrogen or argon gas into the reactor.5. The method of claim 1 , wherein the reactor contains a mesh structure therein claim 1 ,wherein the mixture of copper oxide, tin oxide and lead oxide is placed on a top face of the mesh structure,wherein a recovering unit for recovering molten material is disposed below the mesh structure.6. The method of claim 5 , wherein the molten material includes molten copper-tin alloy.7. The method of claim 5 , wherein in the heat-treatment of the mixture claim 5 , at least one of an inertial force claim 5 , an impact force or a rotational force is applied to the mixture or the reactor.8. The method of claim 7 , wherein the at least one of the inertial force claim 7 , the impact force or the rotational force is applied to the mixture or the reactor 10 times for 1 minute to 3 minutes.9. The method of claim 1 , wherein a recovering line for recovering vaporized lead is connected to an upper ...

Method for the treatment of an object contaminated with metallic particles

Methods for the treatment of metallic particles such as heavy metal particles and objects contaminated with the metallic particles. For the treatment of objects contaminated with the metallic particles, a stabilizing composition may be applied to the object with or without a fixation agent. For the treatment of free-flowing metallic particles, an agglomeration agent may be used with or without a stabilizing agent.

Method for the treatment of metallic particles and objects contaminated with metallic particles

Methods for the treatment of metallic particles such as heavy metal particles and objects contaminated with the metallic particles. For the treatment of objects contaminated with the metallic particles, a stabilizing composition may be applied to the object with or without a fixation agent. For the treatment of free-flowing metallic particles, an agglomeration agent may be used with or without a stabilizing agent.

PROCESSING OF SULFATE AND/OR SULFIDE-RICH WASTE USING CO2-ENRICHED GASES TO SEQUESTER CO2, REDUCE ENVIRONMENTAL IMPACTS INCLUDING ACID ROCK DRAINAGE AND PRODUCE REACTION PRODUCTS

A process is provided for stabilizing a sulfate and/or sulfide-rich waste material, comprising metal sulfide minerals, and sequestering COcomprises exposing the material to a CO-enriched gas mixture, reacting the CO-enriched gas mixture with the metal sulfide minerals and forming a CO-depleted gas mixture and a carbon-containing compound and at least one product selected from the group consisting of a purified metal or a metal-rich compound suitable for smelting or refining, sulfuric acid, sulfur and sulfurous acid, and system and apparatus therefor. 1. A process for stabilizing a sulfate and/or sulfide-rich waste material , comprising metal sulfide minerals , and sequestering COwhich comprises:{'sub': '2', 'exposing the waste material to a CO-enriched gas mixture,'}{'sub': '2', 'reacting the CO-enriched gas mixture with the metal sulfide minerals; and'}{'sub': '2', 'forming a CO-depleted gas mixture and a carbon-containing compound and at least one product selected from the group consisting of a purified metal or a metal-rich compound suitable for smelting or refining, sulfuric acid, sulfur, hydrogen sulfide, sulfur dioxide, sulfur trioxide and sulfurous acid.'}2. The process of wherein CO-enriched gas mixture is sourced from at least one of a commercial and industrial COemitting source.3. The process of wherein CO-enriched gas mixture comprises >1% by weight of CO.4. The process of wherein CO-enriched gas mixture comprises COand at least one of O claim 1 , Nand/or SO.5. The process of wherein CO-enriched gas mixture is sourced from one of a fossil fuel-based hydrogen production plant and a biomass energy facility which is CO-generating.6. The process of wherein CO-enriched gas mixture is sourced from at least one of a power plant claim 1 , a lime kiln claim 1 , a cement plant claim 1 , a hydrocarbon-fueled electrical power generation facility claim 1 , a heating plant claim 1 , a natural gas processing plant claim 1 , and a synthetic fuel plant claim 1 , which is ...

EXTRACTION METHODS FROM REFRACTORY ORES

A method for extracting and separating Gold, Silver, Copper, Zinc and/or Lead from an Arsenic-containing ore, concentrate or tailings characterized in that the extraction is carried by roasting in the presence of a calcium-containing material and at least one of an alkali metal halide and alkaline metal halide. In the method, Arsenic remains immobilized in the extraction residue. 1. A method for extracting at least one metal from an Arsenic-containing ore , concentrate or tailings , the method comprising:mixing the ore, concentrate or tailings with a calcium-containing material and at least one from an alkali metal halide and alkaline metal halide;heating the mixture in the presence of air or oxygen, and thereby producing metal-containing volatile complexes and a solid residue comprising immobilized arsenic;condensing the volatile complexes in a scrubber containing at least one dry sorbent bed, and thereby producing a metal-loaded sorbent bed;recovering the metal from the metal-loaded sorbent bed; anddisposing of the residue containing immobilized Arsenic.2. The method of claim 1 , wherein the metal is Gold claim 1 , Silver claim 1 , Copper claim 1 , Zinc claim 1 , Lead claim 1 , or any mixture thereof; and wherein if a mixture of metals is extracted claim 1 , each of the metals is condensed into a separate sorbent bed.3. The method of or claim 1 , wherein the calcium-containing material is selected from calcium carbonate claim 1 , calcium chloride claim 1 , calcium phosphate claim 1 , calcium sulfate claim 1 , calcium sulfide claim 1 , calcium hydroxide claim 1 , calcium oxide claim 1 , and any mixture thereof.4. The method of claim 1 , wherein the calcium-containing material is selected from lime claim 1 , limestone claim 1 , calcite claim 1 , dolomite or any mixture thereof.5. The method of claim 1 , wherein the ore claim 1 , concentrate or tailings is an Arsenic Silver containing ore claim 1 , concentrate or tailings.6. The method of claim 1 , wherein the ore ...

IMPROVED PYROMETALLURGICAL PROCESS

A process for producing a solder product and a copper product from a first lead-tin based metal composition having at least 40% wt of copper and at least 5.0% wt together of tin and lead. The process includes the steps of 1. A process for the production of a solder product and a copper product comprising the provision of a first lead-tin based metal composition which is comprising at least 40% wt of copper and at least 5.0% wt together of tin and lead , the process further comprising the steps of:d) partially oxidizing a first liquid bath comprising the first lead-tin based metal composition, thereby forming a first dilute copper metal composition and a first solder refining slag, followed by separating the first solder refining slag from the first dilute copper metal composition; andl) partially oxidizing a second liquid bath comprising the first dilute copper metal composition, thereby forming a first high-copper metal composition and a third solder refining slag, followed by separating the third solder refining slag from the first high-copper metal composition,whereby the solder product is derived from the first solder refining slag and the copper product is derived from the first high-copper metal composition, and optionally a solder product is also derived from the third solder refining slag.216-. (canceled)17. The process according to claim 1 , further comprising the step of:c) partially reducing a first copper refining slag thereby forming the first lead-tin based metal composition and a first spent slag, followed by separating the first spent slag from the first lead-tin based metal composition.1826-. (canceled)27. The process according to claim 1 , further comprising the following step:e) partially reducing the first solder refining slag, thereby forming a first crude solder metal composition and a second solder refining slag, followed by separating the second solder refining slag from the first crude solder metal composition.2836-. (canceled)37. The ...

SYSTEMS AND METHODS FOR SELECTIVELY SEPARATING AND SEPARATELY PROCESSING PORTIONS OF LEAD-ACID BATTERIES

The present disclosure relates generally to systems and methods for recycling lead-acid batteries, and more specifically, relates to systems and methods for selectively separating and separately processing portions of lead-acid batteries to improve efficiency and reduce costs. A lead-acid battery processing system includes an imaging system configured to perform imaging of a lead-acid battery and perform image analysis to determine a break point that divides top lead from a remainder of the lead content of the lead-acid battery. The system also includes a battery breaking device configured to break the lead-acid battery at the determined break point and separate the lead-acid battery into a first portion, which includes the top lead, from a second portion, which includes the remainder of the lead content, for separate processing of the first and second portions of the lead-acid battery. 1. A lead-acid battery processing system , comprising:an imaging system configured to perform imaging of a lead-acid battery and perform image analysis to determine a break point that divides top lead from a remainder of the lead content of the lead-acid battery; anda battery breaking device configured to break the lead-acid battery at the determined break point and separate the lead-acid battery into a first portion, which includes the top lead, from a second portion, which includes the remainder of the lead content, for separate processing of the first and second portions of the lead-acid battery.2. The system of claim 1 , wherein the top lead comprises terminal posts claim 1 , bushings claim 1 , and straps of the lead-acid battery.3. The system of claim 1 , wherein the imaging system is configured to determine the break point such that the break point traverses a plurality of lugs that couple one or more grids to one or more straps of the lead-acid battery.4. The system of claim 3 , wherein the top lead comprises a portion of the plurality of lugs.5. The system of claim 1 , ...

PROCESS FOR THE REMOVAL OF METAL OR IMPURITIES FROM ELECTRIC ARC FURNACE DUST

A method for preparing Electric Arc Furnace dust (EAFD) for metal recovery, comprising: a) mixing the EAFD comprising zinc oxide or lead oxide, or a mixture of both, with a liquid and a binder to produce an EAFD mixture; b) producing a shaped EAFD pellet; and c) drying the shaped EAFD pellet is disclosed. A method for recovering zinc from Electric Arc Furnace dust (EAFD), comprising: a) heating the EAFD comprising at least one metal comprising zinc in an inert gas atmosphere at a temperature ranging from 700° C. to 1100° C.; and b) evaporating the at least one metal comprising zinc from the EAFD and collecting the at least one metal is also disclosed. A method for recovering an impurity from Electric Arc Furnace dust (EAFD), comprising: a) heating the EAFD comprising an impurity in an inert gas atmosphere at a temperature ranging from 700° C. to 1100° C.; and b) evaporating the impurity from the EAFD and collecting the impurity is also disclosed. A method for recovering iron oxide from Electric Arc Furnace dust (EAFD), comprising: a) heating the EAFD comprising iron oxide and at least one metal in an inert gas atmosphere at a temperature ranging from 700° C. to 1100° C.; and b) separating the iron oxide by evaporating the at least one metal from the EAFD and leaving the iron oxide as a residue is also disclosed. 1. A method for preparing Electric Arc Furnace dust (EAFD) for metal recovery , comprising:a) mixing the EAFD comprising zinc oxide or lead oxide, or a mixture of both, with a liquid and a binder to produce an EAFD mixture;b) producing a shaped EAFD pellet; andc) drying the shaped EAFD pellet.2. (canceled)3. The method according to claim 1 , wherein the metal oxide is zinc oxide.4. The method according to claim 1 , wherein the metal oxide is lead oxide.5. The method according to claim 1 , wherein the liquid is water.6. The method according to claim 1 , wherein the liquid is present in an amount from about 6.0 wt % to 12.0 wt % claim 1 , based on the total ...

IMPROVED COPPER PRODUCTION PROCESS

A process for a producing crude solder product and a copper product includes the steps of 1. A process for the production of a crude solder product and a copper product comprising the step ofa) providing a black copper composition comprising at least 50% wt of copper together with at least 1.0% wt of tin and/or at least 1.0% wt of lead,the process further comprising the steps of(i) refining a first portion of the black copper composition obtained from step a) to obtain a refined copper product together with at least one copper refining slag,(ii) recovering a first crude solder metal composition, as a first crude solder product, from the at least one copper refining slag, thereby forming a second solder refining slag in equilibrium with the first crude solder metal composition,the process further comprises the step off) contacting a second portion of the black copper composition from step a), different from the first portion, with the second solder refining slag thereby forming a second spent slag and a second lead-tin based metal composition, followed by separating the second spent slag from the second lead-tin based metal composition.23-. (canceled)4. The process according to claim 1 , further comprising the steps of(iii) recovering a second crude solder metal composition, different from the first crude solder metal composition, as a second crude solder product, from the at least one copper refining slag, thereby forming a fifth solder refining slag in equilibrium with the second crude solder metal composition, ando) contacting a third portion of the black copper composition obtained from step a), different from the first portion and from the second portion, with the fifth solder refining slag, thereby forming a third spent slag and a third lead-tin based metal composition, followed by separating the third spent slag from the third lead-tin based metal composition.522-. (canceled)23. The process according to claim 1 , wherein step (i) comprises the step ofb) ...

A METHOD, APPARATUS AND SYSTEM FOR PROCESSING A COMPOSITE WASTE SOURCE

A method, apparatus and system for processing a composite waste source, such as e-waste, is disclosed. The composite waste source may comprise low-, moderate and high-melting point constituents, such as plastics, metals and ceramics. The composite waste source is heated to a first temperature zone, causing at least some of the low-melting point constituents to at least partially thermally transform. The composite waste source is subsequently heated to a second, higher, temperature zone, causing at least some of the moderate-melting point constituents to at least partially thermally transform. At least some of the at least partially thermally transformed constituents may be recovered. The method, apparatus and system disclosed may provide for the recovery and reuse of materials which would otherwise be sent to landfill or incinerated. 1. A method of processing electronic waste comprising low- , moderate and high-melting point constituents , the method comprising:heating the electronic waste in a first temperature zone to a first temperature, such that at least some of the low-melting point constituents in the electronic waste are at least partially thermally transformed; andheating the electronic waste from the first temperature zone in a second, higher, temperature zone, to a second temperature such that at least some of the moderate-melting point constituents are at least partially thermally transformed, wherein at least some of the high-melting point constituents remain reasonably inert.2. A method as claimed in wherein the low-melting point constituents are at least partially thermally transformed by melting claim 1 , alloy formation claim 1 , dissolution and/or phase separation.3. A method as claimed in wherein the moderate-melting point constituents are at least partially thermally transformed by melting claim 1 , alloy formation and/or dissolution.4. A method of processing electronic waste the method comprising:rapidly heating the electronic waste in a first ...

METHOD AND APPARATUS FOR THE PRODUCTION OF LEAD 212 FOR MEDICAL USE

The invention relates to a method for preparing lead (212) for medical use. This method comprises the production of lead (212) by the decay of radium (224) in a generator comprising a solid medium to which the radium (224) is bound, followed by the extraction of the lead (212) from the generator in the form of an aqueous solution A1, characterised in that the lead (212) contained in the aqueous solution A1 is purified from the radiological and chemical impurities, also contained in said aqueous solution, by a liquid chromatography on a column. The invention also relates to an apparatus specially designed for automated implementation in a closed system of said method. It further relates to lead (212) produced by means of this method and this apparatus. Applications: manufacture of radiopharmaceuticals based on lead (212), useful in nuclear medicine for the treatment of cancers, particularly by a-radioimmunotherapy, or for medical imaging, in both humans and animals. 126-. (canceled)28. The method of claim 27 , wherein the chromatography column comprises a stationary phase which selectively retains the lead 212 comprised in the aqueous solution A1 when the aqueous solution A1 is contacted with the stationary phase.29. The method of claim 27 , wherein the liquid chromatography on a column is a extraction chromatography.30. The method of claim 29 , wherein the stationary phase comprises an ether-crown as an extractant.31. The method of claim 30 , wherein the ether-crown is a dicyclohexano-18-crown-6 or a dibenzo-18-crown-6 whose cyclohexyl or benzyl groups are substituted by one or more Cto Calkyl groups with a straight or branched chain claim 30 , in solution in an organic diluent not miscible with water.32. The method of claim 31 , wherein the ether-crown is 4 claim 31 ,4′(5′)-di-tert-butylcyclohexano-18-crown-6.33. The method of claim 28 , comprising:loading the stationary phase with the aqueous solution A1 to allow the lead 212 comprised in the aqueous solution A1 ...

AGENT FOR SELECTIVE ANTIMONY AND ARSENIC REMOVAL AND TIN RETAINING FOR REFINING SECONDARY CRUDE LEAD, AND USE METHOD THEREOF

An agent for selective antimony and arsenic removal and tin retaining includes 10-30 wt % of aluminum, 65-85 wt % of calcium, 1-10 wt % of coke powder, and 1-5 wt % of lead powder. According to the content of antimony in lead, the antimony and arsenic removal and tin retaining agent is added to a molten lead which is at a temperature of about 550-650° C. at a certain proportion so as to carry out an antimony and arsenic removal reaction; after the reaction is completed, cooling is carried out, and antimony and arsenic scum is fished out to obtain a molten lead with antimony and arsenic removed; the content of antimony and arsenic is reduced to 0.0005 wt % or less, and the content of tin is substantially unchanged. The production costs for lead alloy preparation are reduced, and no smoke and odor appear in an antimony and arsenic removal reaction process. 1. A selective antimony and arsenic removal and tin retaining agent for refining secondary crude lead , wherein the selective antimony and arsenic removal and tin retaining agent consists of 10-30 wt % of aluminum , 65-85 wt % of calcium , 1-10 wt % of coke powder , and 1-2 wt % of lead powder , based on a total mass of the antimony and arsenic removal and tin retaining agent of 100 , wherein the calcium , the aluminum , the coke powder , and the lead powder are thoroughly mixed at the mass percentage to produce the selective antimony and arsenic removal and tin retaining agent.2. A use method of the selective antimony and arsenic removal and tin retaining agent for refining secondary crude lead according to claim 1 , wherein the selective antimony and arsenic removal and tin retaining agent is used for refinement and antimony and arsenic removal production of primary lead and secondary crude lead; andthe use method comprises the following steps:Step (1): weighing the calcium, the aluminum, the coke powder, and the lead powder according to the mass percentage, and uniformly mixing the calcium, the aluminum, the coke ...

SEPARATING AND MELTING SYSTEM AND METHOD FOR WASTE LEAD GRID IN WASTE LEAD ACID STORAGE BATTERY RECYCLING

A separating and melting system and method for a waste lead grid in waste lead acid storage battery recycling is provided. A drying drum is mounted on an upper end of a smelting apparatus, a dust remover is connected to an upper end of the drying drum by a flue gas duct, a lead grid turnover box is connected to the upper end of the drying drum, and a lead-containing liquid agitator passes through the drying drum into the smelting apparatus; a spiral feeder is mounted on the smelting apparatus and located in the drying drum, one end of a lead grid barrier plate is placed on the spiral feeder, and the other end of the lead grid barrier plate is placed on an inner wall of the drying drum; an automatic ash acquiring machine is mounted on the smelting apparatus. 1. A separating and melting system for a waste lead grid in a waste lead acid storage battery recycling , characterized in that the separating and melting system for the waste lead grid comprises a dust remover , a flue gas duct , a lead-containing liquid agitator , a lead grid turnover box , a lead grid barrier plate , an ash discharging tube , an automatic ash acquiring machine , a lead ash transporter , a copper-made terminal separator , a lead mud tank , a lead mud agitator , a copper piece collection box , a circulating water treatment apparatus , a smelting apparatus , a spiral feeder , and a drying drum , whereinthe drying drum is mounted on an upper end of the smelting apparatus, the dust remover is connected to an upper end of the drying drum by means of the flue gas duct, the lead grid turnover box is connected to the upper end of the drying drum, and the lead-containing liquid agitator extends through the drying drum into the smelting apparatus;the spiral feeder is mounted on the smelting apparatus and located in the drying drum, one end of the lead grid barrier plate is placed on the spiral feeder, and the other end of the lead grid barrier plate is placed on an inner wall of the drying drum;the ...

METHOD FOR RECOVERING LEAD FROM LEAD-CONTAINING DISCARDED ELECTRONIC WASTE CATHODE RAY TUBE GLASS

A method for recovering lead from lead-containing discarded electronic waste cathode ray tube glass includes the steps of taking a sample of cathode ray tube lead-containing funnel glass, crushing to obtain CRT glass powder, then uniformly mixing zero-valent iron powder with the CRT glass powder according to the mass ratio of 0.1-1.5:1, performing heat preservation at a temperature of 610-960° C. for 3-180 min, and further cooling to extract the metallic lead from a SiOreticular glass structure of the CRT glass. This can be applied to pretreatment of the lead-containing waste CRT glass, and the metallic lead is extracted from the reticular silicate structure of the lead-containing waste CRT glass by adding the zero-valent iron in the thermal treatment process so that disposal rate of electronic wastes is improved and ecological safety is ensured. This method has important environmental, social and economic significance and broad application prospects. 1. A method for recovering lead from lead-containing discarded electronic waste cathode ray tube (CRT) glass , comprising the steps of:taking a sample of cathode ray tube lead-containing funnel glass;crushing the sample to obtain CRT glass powder;preparing a mixture by mixing zero-valent iron powder with the CRT glass powder according to a mass ratio of 0.1-1.5:1;performing heat preservation of the mixture at a temperature of 610-960° C. for 3-180 min; and{'sub': '2', 'cooling the mixture to extract the metallic lead from a SiOreticular glass structure of the CRT glass.'}2. The method according to claim 1 , wherein the step of taking includes breaking a funnel screen joint part of the CRT and taking the sample of the cathode ray tube lead-containing funnel glass from the funnel screen joint part claim 1 , andwherein the step of crushing includes breaking the sample until the particle size is 1-3 cm, crushing by a planetary ball mill until the particle size is less than 65 meshes, and drying at a temperature of 105° C. ...

ROTATION-SUSPENSION SMELTING METHOD, A BURNER AND A METALLURGICAL EQUIPMENT

The invention provides a rotation-suspension smelting method, in which a powdered sulfide concentrate and an oxygen-containing gas are sprayed into a space within a high-temperature reaction tower through an equipment. The oxygen-containing gas is divided into two parts before entering the equipment: the second oxygen-containing gas is sprayed in the form of an annular direct flow into the reaction tower and forms a bell-shaped wind curtain; and the first oxygen-containing gas is transformed into a rotation-jet via the equipment and jetted into the center of the wind curtain. In the annular space between the two gas flows, the concentrate entering in a direction deviated towards the center is drawn in the rotation-jet, and a high-temperature off-gas from the bottom of the reaction tower is also sucked in, forming a gas-particle mixed two-phase rotation-jet. The sulfide concentrate is ignited by the high temperature, namely, starting a violent combustion reaction with oxygen and releasing SO-rich off-gas, at the same time, a mixed melt containing matte (or metal) and slag is formed; and the matte (or metal) is finally separated from the slag at the bottom of the reaction tower, thereby completing the metallurgical process. To achieve the process object, the invention also provides a metallurgical equipment and a rotation-suspension smelting burner thereof. 1. A rotation-suspension smelting method , wherein a dry powdered sulfide concentrate and a corresponding amount of an oxygen-containing gas are sprayed into a space within a high-temperature reaction tower , with a characteristic “wind-concentrate-wind” arrangement on the horizontal plane; wherein:the oxygen-containing gas includes the first oxygen-containing gas and the second oxygen-containing gas, in which the second oxygen-containing gas is sprayed vertically down in the form of an annular direct flow into the reaction tower, and forms a bell-shaped wind curtain that gradually expands horizontally and extends ...

PROCESS FOR THE PURIFICATION OF WASTE MATERIALS OR INDUSTRIAL BY-PRODUCTS COMPRISING CHLORINE

The present application relates to a process for the purification of waste materials or industrial by-products, the process comprising the steps of: a) Preparing a composition (C) by blending or mixing waste materials or industrial by-products comprising chlorine (B) with one or more materials comprising heavy metals (HM) b) Reacting (B) and (HM) by thermal treatment of (C) c) Separating evaporated heavy metal chloride compounds (HMCC) d) Obtaining a solid material after the thermal treatment step. 1. Process for the purification of waste materials or industrial by-products comprising chlorine (B) , the process comprising the steps of:a) Preparing a composition (C) by blending or mixing waste materials or industrial by-products comprising chlorine (B) with one or more materials comprising heavy metals (HM)b) Reacting (B) and (HM) by thermal treatment of (C)c) Separating evaporated heavy metal chloride compounds (HMCC)d) Obtaining a solid material after the thermal treatment step, the heavy metals (HM) are one or more from the following set of elements: Zn, Pb, Hg, Cu, Cd, Tl, In, Sn, Ni, Co', 'the thermal treatment is carried out at a temperature of 500-1200° C. and under a non-oxidizing atmosphere,', 'the materials comprising heavy metals (HM) and the waste materials or industrial by-products comprising chlorine (B) being mixed or blended in the presence of water, with 2-50% by mass, preferably 5-30% by mass, more preferably 10-20% by mass, of water being present in the total composition (C), and', 'the ratio of the materials comprising heavy metals (HM) and the waste materials or industrial by-products comprising chlorine (B) is chosen so that the chlorine content of the composition (C) is between 100 and 150%, preferably between 100 and 130%, most preferably between 100 and 110%, of the amount being necessary for a stoichiometric conversion of the heavy metals (HM) in the materials comprising heavy metals (HM) into chlorides, or', 'the ratio of the materials ...

METHOD FOR TREATING LEAD ANODE SLIME

The present invention relates to a method of treating lead anode slime having high fluorine and arsenic content, in particular to a method comprising smelting of the lead anode slime and cleaning the produced off gases in a one or more wet gas cleaning stages. 1. A method of treating lead anode slime , comprising the steps of:(a) providing a feed mixture comprising lead anode slime;(b) smelting the feed mixture in a smelting furnace at a temperature above 1000° C. to smelt the feed mixture and to volatized and remove at least part of antimony (Sb), fluoride (F) and arsenic (As) comprised in the feed mixture to obtain a first metal phase, a lead (Pb) slag and first process gas comprising volatilized Sb, F and As;(c) cleaning the obtained first process gas in a venturi scrubber by contacting the said first process gas and a first venturi solution in the venturi scrubber to remove at least part of the Sb, F and As from the said first process gas to obtain a first cleaned process gas at least partly depleted of Sb, F and As and a second venturi solution comprising removed part of Sb, F and As;(d) filtering at least part of the obtained second venturi solution to obtain a first venturi slime comprising Sb and a third venturi solution comprising F and As;(e) adding a precipitation agent to the third venturi solution to precipitate at least part of F and As and filtering the thus obtained mixture to obtain a fourth venturi solution at least partly depleted of F and As and a F/As precipitate; and(f) recycling the obtained fourth venturi solution to step (c) as a part of the first venturi solution.2. The method as claimed in claim 1 , wherein the method further comprises the steps of:(g) subjecting the first metal phase obtained in step (b) to oxidizing conditions to oxide, volatize and remove at least part of the remaining Sb, F and As and at least part of Pb comprised in the first metal phase to obtain a second metal phase, a first converting slag comprising Sb and Pb, and ...

FUMING FURNACE WITH LEAD COLLECTING AND DISCHARGING FUNCTION

Disclosed is a fuming furnace with a lead collecting and discharging function, the fuming furnace comprising a furnace body; the furnace body is provided with a hearth therein and a tuyere thereon; the bottom of the hearth forms a molten pool; the furnace body is further provided with a slag discharging outlet and a lead discharging outlet thereon; the furnace body comprises a furnace bottom water jacket and a hearth water jacket; the furnace bottom water jacket is provided with a refractory brick layer at the inner wall thereof; the refractory brick layer is provided with a lead collecting and discharging channel therein for collecting and discharging lead; the lead collecting and discharging channel is in communication with the lead discharging outlet, and the lead collecting and discharging channel is in communication with the molten pool via joints between the refractory bricks forming the refractory brick layer. 1. A fuming furnace with a lead collecting and discharging function comprising:a furnace body,wherein the furnace body is provided with a hearth therein and a tuyere thereon, the hearth has a bottom forming a molten pool, the furnace body is provided with a slag discharging outlet and a lead discharging outlet, the furnace body comprises a furnace bottom water jacket and a hearth water jacket, the furnace bottom water jacket has an inner wall provided with a refractory brick layer, the refractory brick layer is provided with a lead collecting and discharging channel configured to collect and discharge lead therein, the lead collecting and discharging channel is in communication with the lead discharging outlet, and the lead collecting and discharging channel is in communication with the molten pool through joints between refractory bricks forming the refractory brick layer.2. The fuming furnace with the lead collecting and discharging function according to claim 1 , wherein the lead discharging outlet is disposed at a lower portion of an end wall of the ...

METHOD FOR EXTRACTING METALS FROM CONCENTRATED SULPHURATED MINERALS CONTAINING METALS BY DIRECT REDUCTION WITH REGENERATION AND RECYCLING OF THE REDUCING AGENT, IRON, AND OF THE FLUX, SODIUM CARBONATE

A method is disclosed for extracting metals from concentrated sulphurated minerals containing metals by direct reduction with regeneration and recycling of the reducing agent, iron, and of the flux, sodium carbonate. It is a combination of pyrometallurgical and hydrometallurgical processes which differ from the conventional processes. They do not require previous toasting of the concentrated sulphurated minerals and are technically and economically more advantageous than the presently used processes, since they directly reduce to zero the positive oxidation state of the metal, using a single reactor for extracting the metal, regenerating and recycling the metallurgical feed materials in complementary processes, the kinetics of the chemical reactions being characterised by high speed, without generating any slags or pollutant gases. The metals can be extracted at a reduced cost and in an environmentally sustainable manner 112-. (canceled)13. A process for the continuous extraction of metals from sulphurated minerals containing them , with or without associated iron , characterized by the direct reduction of the specific metal or metals to be extracted , with regeneration and recycling of iron as reducing agent , and sodium carbonate as flux , from slag and liquid and gaseous effluents derived from processes involved , in which said process includes the following steps:Extraction of metals in the smelting furnace that smelts ferrous and/or non ferrous concentrated sulphurated minerals containing the metal to be extracted, including, but not limited to, lead, silver, zinc, copper, molybdenum, antimony, arsenic, with or without iron associated and, with gold and silver inclusion in certain cases, using iron as a reducing agent of said non-ferrous metals and sodium carbonate as a flux; resulting in molten or powdery metals extracted, a controlled smooth slag consisting of ferrous oxide and sodium sulphide, and gaseous emissions of carbon dioxide.Selective dissolution in ...

DEVICE FOR FRACTIONAL CONDENSATION OF ARSENIC LEAD VAPOR MIXTURE AND APPLICATION METHOD THEREOF

A device is provided for fractional condensation of an arsenic-lead vapor mixture and an application method thereof. The device includes a vacuumizing device, a flange, temperature measuring devices, a graded vacuum furnace body, a quartz tube, a push rod, a control cabinet, a heating zone and recycled foil. The length of the quartz tube is 1.2-2 m; the length of the heating zone is 0.15-0.25 m; and the quartz tube is provided with one temperature measuring device every 2-3 cm. The device forms a certain temperature gradient in the quartz tube, so that a material condenses in the corresponding temperature range, thereby achieving the purpose of high-efficiency separation. 16.-. (canceled)7. A device for fractional condensation of an arsenic-lead vapor mixture , comprising:a vacuumizing device,a flange,a plurality of temperature measuring devices,a graded vacuum furnace body,a quartz tube,a push rod,a control cabinet,a heating zone, andrecycled foil,wherein one end of the quartz tube is connected with the vacuumizing device through the flange, and another end of the quartz tube is internally sealed and provided with the push rod that can move inside the quartz tube;the quartz tube is internally provided with a recycled foil layer, the quartz tube is provided in the middle thereof with the heating zone, and the quartz tube is externally provided with a furnace shell to form the graded vacuum furnace body;the plurality of temperature measuring devices are evenly inserted in the top of the graded vacuum furnace body, and each of the temperature measuring devices is in contact with the top of the quartz tube;a bottom of the graded vacuum furnace body is provided with the control cabinet, and a controller in the control cabinet is respectively electrically connected with a heating device of the heating zone, the plurality of temperature measuring devices and a mechanical pump of the vacuumizing device; anda length of the quartz tube is 1.2-2 m; a length of the heating ...

PROCESS FOR RECOVERING VALUE METALS FROM ORE

This invention relates to a process for recovering valuable metals from ore with significantly reduced water consumption through the discrete treatment and storage of coarse tailings. Ore is ground to produce a coarse particulate ore. The coarse particulate ore is treated in a coarse flotation stage to produce a low grade concentrate fraction and a coarse tailings fraction. The low grade concentrate fraction is treated to produce fine tailings and a saleable concentrate. The coarse tailings are treated separately from the fine tailings and water is recovered from the coarse tailings by hydraulically stacking; filtering or screening, whereafter the coarse tailings are dry stacked, without being recombined with the fine tailings. 1. A process for recovering value metals from ore , including the steps of:grinding the ore to produce a coarse particulate ore with a particle size p80 of greater than 150 μm up to 1000 μm;treating the coarse particulate ore in a coarse flotation stage to produce a concentrate fraction, and a coarse tailings fraction with a particle size p80 of greater than 150 μm up to 1000 μm; andmilling the concentrate fraction to produce a milled concentrate, and treating the milled concentrate in a secondary flotation stage to produce a secondary concentrate fraction and a fine tailings fraction; wherein:coarse tailings from the coarse tailings fraction are treated and/or stored separately from the fine tailings fraction or any other fine tailings.2. The process claimed in claim 1 , wherein the coarse tailings from the coarse tailings fraction are dry stacked.3. The process claimed in claim 2 , wherein water is removed from the coarse tailings from the coarse tailings fraction by hydraulically stacking; filtering or screening.4. The process claimed in claim 1 , wherein coarse tailings from the coarse tailings fraction are not combined with fine tailings claim 1 , nor passed through a concentrator.5. The process claimed in claim 1 , wherein the ore is ...

Method And Apparatus For The Production of Lead 212 For Medical Use

The invention relates to a method for preparing lead () for medical use. This method comprises the production of lead () by the decay of radium () in a generator comprising a solid medium to which the radium () is bound, followed by the extraction of the lead () from the generator in the form of an aqueous solution A characterised in that the lead () contained in the aqueous solution A is purified from the radiological and chemical impurities, also contained in said aqueous solution, by a liquid chromatography on a column. The invention also relates to an apparatus specially designed for automated implementation in a closed system of said method. It further relates to lead () produced by means of this method and this apparatus. Applications: manufacture of radiopharmaceuticals based on lead (), useful in nuclear medicine for the treatment of cancers, particularly by a-radioimmunotherapy, or for medical imaging, in both humans and animals. 126-. (canceled)27212. An apparatus for an automated production of lead- in a closed system , comprising:{'b': 224', '212', '224', '224, 'a generator comprising a solid medium and radium to produce lead- by decay of the radium , the radium being bound to the solid medium;'}{'b': 212', '1, 'an extractor for extracting the lead- from the generator to form an aqueous solution A;'}{'b': 212', '1, 'a liquid chromatography column for purifying the lead- comprised by the aqueous solution A from radiological and chemical impurities;'}{'b': '212', 'a collector for collecting the purified lead-;'}a first connector for connecting the generator with the extractor;a second connector for connecting the extractor with the liquid chromatography column;a third connector for connecting the liquid chromatography column with the collector; andan electronic processor for commanding the extractor, the liquid chromatography column and the first, second and third connectors.28. The apparatus of claim 27 , wherein the extractor comprises a circulator for ...

REDUCTION DEVICE USING LIQUID METAL

The present invention relates to a reduction device using a liquid metal, which can improve the oxidation reaction of a reducing agent for reducing a material to be reduced using a liquid metal, while simultaneously effectively controlling the same. The reduction device according to the present invention comprises: a storage unit in which the liquid metal is supplied and stored; a reducing agent positioned in the storage unit; a reduction unit positioned on a side of the storage unit, which receives a material to be reduced and enables fluid communication with the storage unit; and a liquid metal storage unit. According to the present invention, a reducing agent, which has strong reducing ability, is sublimated using a liquid metal, thereby further improving the reduction capability, and the same is also controlled precisely, thereby removing restrictions on use resulting from the explosive reaction of the reducing agent, and guaranteeing efficient operation. 1. A reduction device using a liquid metal , comprising:a storage unit in which the liquid metal is supplied and stored;a reducing agent block positioned in the storage unit; anda reduction unit positioned on a side of the storage unit, which receives a material to be reduced and enables fluid communication with the storage unit.2. The reduction device of claim 1 , wherein the reducing agent block is sublimated by the liquid metal claim 1 , to form a reducing agent particle claim 1 , and the reducing agent particle flows to the reduction unit.3. The reduction device of claim 2 , wherein the reduction device further comprises a dispersion plate positioned between the storage unit and the reduction unit.4. The reduction device of claim 3 , wherein the reduction device further comprises a refrigerant supply unit supplying a refrigerant to the reducing agent block in the storage unit and a first controller controlling the refrigerant supply unit.5. The reduction device of claim 4 , further comprising a gas supply ...

IMPROVED PYROREFINING PROCESS

A disclosed process produces at least one concentrated copper product together with at least one crude solder product, starting from a black copper composition with at least 50% of copper together with at least 1.0% wt of tin and at least 1.0% wt of lead The process includes the step of partially oxidizing the black copper thereby forming a first copper refining slag, followed by partially reducing the first copper refining slag to form a first lead-tin based metal composition and a first spent slag. The total feed to the reducing step includes an amount of copper that is at least 1.5 times as high as the sum of the amounts of Sn plus Pb present, and the first spent slag includes at most 20% wt total of copper, tin and lead together. 1. A process for the production of a first lead-tin based metal composition , comprising the following steps:a) providing a black copper composition comprising at least 50% wt of copper together with at least 1.0% wt of tin and at least 1.0% wt of lead,b) partially oxidizing the black copper composition, thereby forming a first enriched copper metal phase and a first copper refining slag, both occurring as liquid molten phases [for support, see Page 30, lines 8-12], followed by separating the first copper refining slag from the first enriched copper metal phase,c) partially reducing the first copper refining slag thereby forming a first lead-tin based metal composition and a first spent slag, both occurring as liquid molten phases [see Page 30, lines 8-12], followed by separating the first spent slag from the first lead-tin based metal composition, the latter forming the basis for a first liquid bath,whereby the total feed to step c) comprises an amount of copper that is at least 1.5 times as high as the sum of Sn plus Pb present, andwhereby the first spent slag comprises at most 20% wt total of copper, tin and lead together.213-. (canceled)14. The process according to claim 1 , further comprising the following step:d) partially ...

A Treatment method of Electric arc furnace Dust

본 발명은 전기로 제강분진의 환원소성 공정을 진행하는 단계; 상기 환원소성 공정을 진행하여 아연과 철을 분리회수하는 단계; 상기 분리회수된 아연성분을 조산화아연으로 포집하는 단계; 상기 조산화아연의 산화배소 조업을 진행하는 단계; 상기 산화배소 조업을 진행하여 정제된 산화아연을 얻고, 상기 산화배소 조업으로부터 발생되는 배가스로부터, Pb와 Zn을 포함하는 더스트 형태의 분말을 포집하는 단계; 상기 포집된 더스트 내의 Pb와 Zn을 분리회수하는 단계; 및 상기 분리회수된 Pb와 Zn의 탄산화 반응을 진행하는 단계를 포함하는 전기로 제강분진의 처리방법에 관한 것으로, 전기로 제강분진을 처리함에 있어서, 전기로 제강분진에 함유되어 있는 유가금속을 효율적으로 회수할 수 있고, 추가적인 2차 폐기물의 발생이 전혀 없이 친환경적인 처리 효과를 얻을 수 있다. The present invention relates to a method for manufacturing a steel sheet, Performing the reducing and firing step to separate and recover zinc and iron; Collecting the separated and recovered zinc component with zinc oxide; Advancing the oxidation and roasting of the zinc oxide; Collecting the dust-type powder containing Pb and Zn from the exhaust gas generated from the oxidizing roasting operation; Separating and recovering Pb and Zn in the collected dust; The present invention relates to a method of treating electric furnace steel dust, which comprises a step of carbonizing an electric furnace steel dust, and a step of carbonizing the separated and recovered Pb and Zn. In the method of treating electric furnace steel dust, , And an environmentally-friendly treatment effect can be obtained without any generation of additional secondary waste.

Improved copper manufacturing process

본 발명은, 조 땜납 생성물 및 구리 생성물의 생산을 위한 제조방법을 개시하고, 상기 제조방법은, a) >= 1.0 중량%의 주석 및/또는 >=1.0 중량%의 납와 함께 >=50 중량%의 구리를 포함하는 흑동을 제공하는 단계; 및 (i) 구리 정련 슬래그 (3, 6, 8) 중 적어도 하나와 함께 정련 구리 생성물 (9)을 수득하도록 상기 흑동의 제1 부분(1)을 정련하는 단계, (ii) 상기 제1 조 땜납 생성물과 평형을 이룬 땜납 정련 슬래그(solder refining slag, 19, 27)을 형성하도록, 상기 구리 정련 슬래그 (3, 6, 8)로부터 제1 조 땜납 생성물 (18, 26)을 회수하는 단계; 를 포함하고, 상기 방법은, f) 폐 슬래그 (20, 28) 및 납-주석 기반 금속 (10, 29)을 형성하고, 다음으로, 상기 납-주석 기반 금속으로부터 상기 폐 슬래그를 분리하도록, 상기 땜납 정련 슬래그(19, 27)와 상기 흑동의 상이한 부분 (50, 55)과 접촉하는 단계 (700, 1100)를 더 포함한다. The present invention discloses a preparation method for the production of a crude solder product and a copper product, the preparation method comprising: a) >=50% by weight with >=1.0% by weight of tin and/or >=1.0% by weight of lead providing black copper containing copper of and (i) refining a first portion (1) of said black copper together with at least one of copper refining slag (3, 6, 8) to obtain a refined copper product (9), (ii) said first article solder recovering the first crude solder product (18, 26) from the copper refining slag (3, 6, 8) to form a solder refining slag (19, 27) equilibrated with the product; A method comprising: f) forming a waste slag (20, 28) and a lead-tin-based metal (10, 29), and then separating the waste slag from the lead-tin-based metal; and contacting the solder refining slag (19, 27) with different portions (50, 55) of the black copper (700, 1100).

Способ для производства сырого припойного продукта и медного продукта

Изобретение относится к способу сырого припойного продукта и медного продукта. Способ включает стадии a) обеспечения черновой меди, содержащей >=50 мас.% меди вместе с >=1,0 мас.% олова и/или >=1,0 мас.% свинца, и (i) очистки первой части черновой меди для получения очищенного медного продукта вместе по меньшей мере с одним медным рафинировочным шлаком, (ii) извлечения первого сырого припойного продукта из медного рафинировочного шлака с формированием припойного рафинировочного шлака, находящегося в равновесии с первым сырым припойным продуктом, и дополнительно включает стадию f) контактирования другой части черновой меди с припойным рафинировочным шлаком с формированием отработанного шлака и металла на основе свинца-олова с последующим отделением отработанного шлака от металла на основе свинца-олова. Обеспечивается повышение производительности и степени извлечения целевого металла. 17 з.п. ф-лы, 1 ил., 1 пр., 24 табл. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 763 128 C1 (51) МПК C22B 13/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 13/02 (2021.08); C22B 13/02 (2021.08) (21)(22) Заявка: 2020119289, 11.12.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 27.12.2021 14.12.2017 EP 17207372.8 (73) Патентообладатель(и): МЕТАЛЛО БЕЛДЖИУМ (BE) (45) Опубликовано: 27.12.2021 Бюл. № 36 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 14.07.2020 (86) Заявка PCT: R U 2 7 6 3 1 2 8 C 1 EP 2018/084393 (11.12.2018) (87) Публикация заявки PCT: WO 2019/115543 (20.06.2019) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" (54) Способ для производства сырого припойного продукта и медного продукта (57) Реферат: Изобретение относится к способу сырого находящегося в равновесии с первым сырым припойного продукта и медного продукта. припойным продуктом, и дополнительно Способ включает стадии a) обеспечения черновой ...

废旧磷酸铁锂电池正极材料还原熔炼回收有价金属的方法

本发明公开了一种废旧磷酸铁锂电池正极材料还原熔炼回收有价金属的方法，包括以下步骤：将废旧磷酸铁锂电池正极材料和废铅膏混合，再加入还原剂进行还原熔炼处理得到还原渣和金属铅，对还原渣进行水浸提锂处理回收锂，收集剩下渣相回收铁。本发明利用废旧磷酸铁锂电池正极材料协同废铅膏经一步还原熔炼就可得到还原渣和金属铅，还原过程锂发生转型以碳酸锂形式存在，后续可采用碳化水浸提锂进行回收，产出的硫化亚铁可作为炼铁原料进行循环利用，利用废‑废协同作用，实现了资源的综合回收利用。

A kind of comprehensive recovering process of the dust of Ferrous Metallurgy containing zinc

本发明公开了一种含锌钢铁冶金粉尘的综合回收方法，它是首先将各种含锌钢铁冶金粉尘磨细后与还原剂焦炭粉混合配料至混合物料中含锌达到10％以上，然后用纸浆或粘土作粘结剂将混合物料制成球团状或砖块状，最后将其加入带微波辐射的真空炉中进行真空还原冶炼，分别获得金属锌和主要含铁和炭的金属化球团或块状的蒸馏残余物。本发明方法以含锌钢铁冶金粉尘为原料，配合本发明工艺步骤综合回收锌、铁和炭，综合回收效果好、能耗低、效率高、工艺流程短、成本低，并且整个过程中无废渣、废液产生，对环境友好。

Method and installation for reducing fine-dispersion ferric oxide material in fluidized bed

Сущность изобретения: в способе прямого восстановления мелкодисперсного, содержащего оксид железа, материала с псевдоожижением осуществляют паровую конверсию природного газа и полученный конвертированный газ смешивают с образующимся при прямом восстановлении колошниковым газом и в качестве восстановительного газа подают в зону восстановления с псевдоожиженным слоем. Колошниковый газ и конвертированный газ подвергают отмывке от CO 2 после их смешивания, при этом газы смешивают в соотношении, обеспечивающем содержание H 2 в пределах 45 - 75%, предпочтительно 50 - 65% и содержание CO в пределах 10 - 20%. В процессе конверсии соотношение пара и природного газа поддерживают равным 2,5 - 3,5, а содержание CH 4 в восстановительном газе - 8-35. Процесс прямого восстановления осуществляют в нескольких, например четырех, реакторах с псевдоожиженным слоем. Реакторы связаны между собой противоположно направленными перегрузочными узлами и трубопроводами восстановительного газа. Последний по ходу движения восстановительного газа оборудован трубопроводами, соединенными с источником кислорода и природного газа. К каждому реактору, кроме первого по ходу восстановительного газа, подведен трубопровод свежего восстановительного газа. 2 с. и 9 з.п. ф-лы, 1 ил., 2 табл. СУ 0Сс ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ “” 2 078 143 Сл С 21В 13/00, 13/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93005022102, 21.05.1993 (30) Приоритет: 22.05.1992 АТ А1О66/92 (46) Дата публикации: 27.04.1997 (56) Ссылки: Патент США М 5082251, кл. С 21 В 1100, 1992. (71) Заявитель: Фоест-Альпине Индустрианлагенбау Гмбх (АТ), Брайфер Интернейшнл Лтд. (ВВ) (72) Изобретатель: Карл Чермак[АТ], Константин Милионис[АТ], Иоханнес Леопольд Шенк[АТ], Зигфрид Целлер[АТ], Рой Хуберт ВиппП[Ц$] (73) Патентообладатель: Фоест-Альпине Индустрианлагенбау ГмбХ (АТ), Брайфер Интернейшнл Лтд. (ВВ) (54) СПОСОБ ВОССТАНОВЛЕНИЯ МЕЛКОДИСПЕРСНОГО ЖЕЛЕЗООКИСНОГО МАТЕРИАЛА ...

Recovery of zinc from zinc-containing sulphidic material

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 leaching zinc-containing sulphidic material and zinc oxide containing material under pressurized oxidizing conditions at a temperature in the range of from about 130° to about 170° C. in aqueous sulphuric acid solution with a stoichiometric excess of sulphuric acid relative to the zinc content of the materials of from about 40 to about 100% to produce a residue containing a major proportion of lead and/or silver values and a leach solution containing a major proportion of the zinc and iron. The residue is separated from the leach solution and treated to recover lead and/or silver values. The pH of the solution is then raised to neutralize the acid in an iron removal step to cause precipitation of at least some of the dissolved iron from the leach solution as an iron compound. The precipitated iron compound is separated from the remaining leach solution, and the remaining leach solution is treated to recover zinc.

reduction device using liquid metal

The present invention relates to a reducing device using liquid metal which is able to activate and effectively control an oxidation reaction of a reducing agent to reduce a substance to be reduced. According to the present invention, the reducing device comprises: a storage part to which liquid metal is supplied and stored; a reducing agent located in the storage part; a reducing part located on a side of the storage part which accommodates a substance to be reduced, and be fluid communicated with the storage part; and a liquid metal keeping part. According to the reducing device, the reducing performance is able to be improved by sublimating a reducing agent having a powerful reducing effect using liquid metal; and moreover, a more efficient operation is available by removing the constraints of usage due to an explosive reaction of the reducing agent through a precise control of the reducing agent.

A kind of industry dangerous waste Resource comprehensive utilization method

本发明涉及一种工业危废资源化综合利用方法，通过将含铜危废、含铅危废和有色冶金危废混合制成炉料，再将炉料加入铁、硅、钙等添加剂制团，经竖炉还原熔炼制得冰铜和铅铋合金；铅铋合金经除铜、除锡后电解制得电解铅，电解阳极泥经转炉熔炼制得粗铋；火法精炼制取精铋过程，金、银、锑、碲以渣和烟尘的形式得到回收；电解获得的电解铅经火法熔炼制得电解铅锭。本发明实现了含铜危废、含铅危废和有色冶金危废有价金属的综合利用，工艺过程废水零排放，熔炼过程尾气达标排放，是一个环保资源型新技术。

Oxygen-enriched intensified smelting method for horizontal reduction furnace

本发明提供本发明的目的在于提供一种卧式还原炉富氧强化熔炼的方法，其特征在于：将将含铅锑铜炉渣、无烟煤进行均匀配料采用两个加料漏斗进行两个批次加料，分别控制两个批次物料的加入和相匹配的富氧空气的喷入，将物料逐步升温到熔炼温度，进行熔炼，熔炼完成后加入纯碱造渣，由于富氧熔炼炉与地面呈10度倾角，首先，从富氧强化还原炉铅口扒出碱渣，然后，扒出富氧强化还原炉炉渣，最后，用铅泵将铅锑合金打出铸锭，将铅锑合金表表面的冰铜清除，单独堆存，这样能够缩短熔炼时间，降低能耗。

Method of processing fine-grain lead and lead-zinc copper-containing sulfide concentrates

Изобретение предназначено дл  переработки свинцового, свинцово-цинкового сырь  обжигом-плавкой типа процесса кивцет. Целью изобретени   вл етс  повышение качества чернового свинца и упрощение рафинировани  его от меди. Мелкозернистые свинцовые или свинцово-цинковые медьсодержащие сульфидные концентраты смешивают с флюсами, оборотными пыл ми и направл ют на обжиг-плавку в кислородном факеле. Кислород ввод т из расчета получени  расплава с массовым отношением серы к меди в нем в пределах 0,65-1,30. Расплав при температуре не ниже 1200°С обрабатывают твердым углеродсодержащим материалом. В результате получают черновой свинец, медный штейн, обедненный шлак и газы. Дл  повышени  качества выплавл емого чернового свинца (по содержанию в нем меди) охлаждают слой свинца, примыкающий к подине до 330-900°С. 1 табл.

Process the method and system of zinc kiln slag

本发明公开了处理锌窑渣的方法和系统，该方法包括：(1)将锌窑渣进行烘干处理；(2)将锌窑渣烘干料进行破碎处理，得到锌窑渣破碎料；(3)将锌窑渣破碎料和钙类添加剂进行混合成型，成型后在球团表面喷淋含有氧化铝的石灰水，得到混合球团；(4)将混合球团供给至转底炉的进料区，使得混合球团依次经过转底炉的预热区、中温区、高温区和冷却区进行还原，得到的含有氧化锌和氧化铅的烟尘从预热区排出，得到金属化球团从出料区排出；(5)将金属化球团进行磨矿磁选处理，得到金属铁粉和尾矿。该方法可以实现锌窑渣中碳、铁、铅和锌的综合回收利用，并且所得金属铁粉的品位可达90％以上，锌的挥发率可达99％以上，铅的挥发率可达98％以上。

Improved pyrometallurgical process

本申请公开了一种由第一铅‑锡基金属组合物(13)生产焊料产品和铜产品的方法，所述第一铅‑锡基金属组合物(13)包括至少40wt％的铜，和共计至少5.0wt％的锡和铅，所述方法包括以下步骤：d)部分氧化(500)包括所述第一铅‑锡基金属组合物(13)的第一熔浴(450)，由此形成第一稀铜金属组合物(15)和第一焊料精炼渣(16)，随后将所述炉渣与所述金属组合物分离，和l)部分氧化(800)包括所述第一稀铜金属组合物(15)的第二熔浴(550)，由此形成第一高铜金属组合物(22)和第三焊料精炼渣(23)，随后将所述第三焊料精炼渣(23)与所述第一高铜金属组合物(22)分离，由此，由所述第一焊料精炼渣(16)得到所述焊料产品。

Method of weighed melting of sulfide raw material

FIELD: nonferrous metallurgy. SUBSTANCE: invention, in particular, relates to melting finely dispersed sulfide material containing metals such as copper, nickel, and lead involving oxygen enrichment. Raw material is fed into suspension melting furnace together with flux and oxidizing gas. Walls of reaction space of the furnace are cooled and thereby at least two molten phases are formed. According to invention, degree of oxygen enrichment of oxidizing gas is at least 40% to raise temperature of suspension particles to accelerate reactions proceeding in reaction space, while thickness of the reaction space wall lining is varied in accordance with amount of product produced by furnace with the aid of cooling members manufactured by stretching molding technique and mounted in reaction space wall. EFFECT: enhanced process efficiency. 4 cl, 4 dwg 160$ с ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ "” 2430 975‘ 13) С1 С 22 В 15/00, 23/02 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 95102125102, 16.02.1995 (30) Приоритет: 17.02.1994 Е| 940739 (46) Дата публикации: 27.05.1999 (56) Ссылки: Ц$ 4139371 А, 13.02.79. ЗЦ 557113 А, 05.05.77. $0 1548229 АТ, 07.03.90. $0 1601168 АЛ, 23.10.90. 4$ 3664828 А, 23.05.72. 4$ 3790366А, 05.02.14. 4$ 3892559 А, 01.07.75. 4$ 3988148 А, 26.10.76. Ц$ 4169725 А, 02.10.19. 4$ 4645186 А, 24.02.87. (98) Адрес для переписки: 129010, Москва, ул.Б.Спасская 25, строение 3 ООО "Союзпатент" Патентному поверенному Нач.отд. механики Томской Е.В. (71) Заявитель: Оутокумпу Энжинеринг Контракторс Ой (Е 1) (72) Изобретатель: Пекка Ханниала (Е), Ристо Сааринен ([1), Эркки Крогерус (Е), Илькка Койо (Р-Р!) (73) Патентообладатель: Оутокумпу Энжинеринг Контракторс Ой (Е 1) (54) СПОСОБ ВЗВЕШЕННОЙ ПЛАВКИ СУЛЬФИДНОГО СЫРЬЯ (57) Реферат: Изобретение относится к способу взвешенной плавки сульфидного тонкоизмельченного сырья, содержащего металлы, такие как медь, никель и свинец, с использованием кислородного ...

Lead-zinc chloride separation method in steelmaking dust resource recovery process

本发明公开了一种炼钢粉尘资源回收过程中铅锌氯化物分离方法，首先将回转窑中反应得到的含有氯化铅和氯化锌的气态混合体引入水平分离管，向所述水平分离管内通风；再在水平分离管的出口端水平设置温控管，该温控管包括靠近水平分离管出口端的高温段和远离水平分离管出口端的低温段，控制所述高温段的温度为400～450℃，控制低温段的温度为250～300℃；最后在所述高温段和低温段的正下方分别设置接料斗，将所述接料斗的开口端分别与所述温控管连通，从而在高温段的接料斗内收集得到氯化铅，在低温段的接料斗内收集得到氯化锌。采用本发明的显著效果是，可将回转窑回收的氯化锌和氯化铅混合体，直接分选得到纯度较高的氯化铅和氯化锌，以节省后续处理工序。

Method for extracting metals from concentrates of sulfur-containing ores

FIELD: metallurgical industry. SUBSTANCE: invention relates to methods of continuous extraction of metals from sulfur-containing ores. Metals are reduced; iron and sodium carbonate are used as flux. Sodium sulphide from slag is selectively dissolved in water and the residue is separated by filtration to obtain a solid residue of iron oxide and a filtered solution of sodium sulphide. Sodium carbonate is recovered for reuse by mixing filtered sodium sulphide solution with supersaturated sodium carbonate solution. Gaseous hydrogen sulphide is removed and sulfur is obtained by trapping and feeding these gaseous emissions into a gas-solid reactor, where hydrogen sulphide reacts with iron hydroxide to form iron sulphide and water. Iron oxide is sintered by preliminary agglomeration, subsequent heating of the solid residue obtained by filtration at temperature of 1,100°C to 1,300°C and subsequent sintering to obtain iron oxide granules. EFFECT: methods make it possible to improve the process of direct reduction, reduce environmental pollution. 12 cl, 8 dwg, 8 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 768 798 C2 (51) МПК C22B 5/04 (2006.01) C22B 5/12 (2006.01) C22B 9/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 5/04 (2022.01); C22B 5/12 (2022.01); C22B 9/10 (2022.01) (21)(22) Заявка: 2018112130, 15.08.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): КАРДЕНАС АРБЬЕТО, Франсиско Хавьер (PE) Дата регистрации: 24.03.2022 16.10.2015 PE 002185-2015/DIN (43) Дата публикации заявки: 07.10.2019 Бюл. № 28 (56) Список документов, цитированных в отчете о поиске: RU 2194781 C2, 20.12.2002. RU 2154117 C2, 10.08.2000. RU 2219264 C2, 20.12.2003. US 5443614 A, 22.08.1995. US 4101314 A, 18.07.1978. WO 2004113230 A1, 29.12.2004. (45) Опубликовано: 24.03.2022 Бюл. № 9 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.04.2018 2 7 6 8 7 9 8 Приоритет(ы): (30) Конвенционный ...

Separation smelting method of high-arsenic high-lead copper alloy

本发明公开了一种高砷高铅铜合金的分离熔炼方法。首先将高砷高铅铜合金、黑铜渣和石英加入底吹炉中进行氧化熔炼，产出铅砷烟灰和铜砷铅的氧化渣；所得氧化渣以液态的形式流入底吹造锍熔炼炉中进行造锍熔炼反应，产出铅砷烟灰、冰铜和铅砷渣；将产出的铅砷烟灰、铅砷渣与纯碱加入到低温还原底吹炉中进行熔炼还原反应，产出铅砷合金、铅砷烟灰和弃渣，铅砷烟灰返回低温还原底吹炉中循环利用；所得铅砷合金进行真空蒸馏，使铅砷分离，产出单质砷和粗铅。本发明技术方案能够使得铜、铅、砷得到有效分离，并产出合格的冰铜、粗铅和粗砷。

System for processing copper slag and application of system in processing copper slag

本发明公开了一种处理铜渣的系统及其在处理铜渣中的应用，所述系统包括：原料成型装置、转底炉直接还原装置、熔分装置和制备矿棉装置。本发明进一步公开了应用所述系统处理铜渣的方法，包括：(1)将铜渣、还原剂、添加剂和粘结剂在原料成型系统制成含水生球团；(2)将生球团在转底炉直接还原装置进行还原焙烧；(3)将还原焙烧产物在熔化分离装置进行熔分，得到铁水和液态渣；(4)液态渣送入制备矿棉装置得到矿棉产品。本发明的系统处理铜渣可以实现含水的铜渣生球直接进入转底炉，在转底炉内实现球团的烘干、预热和铅锌铜的回收，再经转底炉直接还原，熔分炉熔化分离和制备矿棉等工序，实现铜渣资源的综合利用。

The method and system of the direct-reduction of wet method zinc smelting dreg

本发明公开了湿法锌冶炼渣的直接还原的方法和系统。其中，该方法包括：将干燥的锌浸出渣与煤和石灰石进行混合处理，得到混合物；将混合物进行第一造球处理，得到第一混合物料团块；将第一混合物料团块裹入草酸钙粉进行第二造球处理，得到具有草酸钙外层的第二混合物料团块；将第二混合物料团块进行还原焙烧处理，得到含银、铅、锌和铟的烟尘和金属化球团；将金属化球团进行磨矿磁选处理，得到金属铁产品。该方法通过在配料中入石灰石，可促进铁还原，降低渣熔点促进铅、锌、银，使铁产品的硫含量降低。同时通过分步造球，在第二混合物料团块表面形成草酸钙外层，减少第二混合物料团块内部的SO 2 逸出和有效防止第二混合物料团块熔化。

Method of recovering lead from oxysulphate sludge of storage batteries

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy of non-ferrous metals and can be used in recovery of lead from oxysulphate sludge (OSS) of lead of lead-antimony electrode grids of accumulator scrap. Lead is reduced from oxysulphate sludge of accumulator batteries in molten caustic soda at addition of sodium sulphide at weight ratio of OSS:NaOH:Na 2 S, equal to 100:(15–16):(75–100), and temperature of 500–550 °C for 40–45 minutes. EFFECT: method provides high reduction of lead to metallic phase (more than 99 %) with high quality of obtained metal, simplification of process. 1 cl, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 693 245 C1 (51) МПК C22B 13/02 (2006.01) C22B 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C22B 13/02 (2019.05); C22B 7/04 (2019.05) (21)(22) Заявка: 2019100660, 10.01.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 01.07.2019 (45) Опубликовано: 01.07.2019 Бюл. № 19 2505613 C2, 27.01.2014. RU 2208057 C1, 10.07.2003. WO 2009068988 A2, 04.06.2009. GB 2309464 A, 30.07.1997. (54) Способ восстановления свинца из оксисульфатных шламов аккумуляторных батарей (57) Реферат: Изобретение относится к металлургии цветных сульфида натрия, при массовом отношении OСШ: металлов и может быть использовано в процессах NaOH:Na2S, равном 100:(15÷16):(75÷100), и восстановления свинца из оксисульфатных температуре 500-550°С в течение 40-45 мин. шламов (ОСШ) набивки свинцово-сурьмяных Способ обеспечивает высокое восстановление в электродных решеток аккумуляторного лома. металлическую фазу свинца (более 99%) при Свинец восстанавливают из оксисульфатных высоком качестве получаемого металла, шламов аккумуляторных батарей в упрощение процесса. 1 пр. расплавленной каустической соде при добавке R U 2 6 9 3 2 4 5 (56) Список документов, цитированных в отчете о поиске: RU 2282672 C1, 27.08.2006. RU Стр.: 1 C 1 C 1 Адрес для переписки: 660025, г. Красноярск, пр-т Красноярский ...

OVEN IN PARTICULAR FOR THE PRODUCTION OF LITARGIRIO BY CALCINATION OF MASSICOT.

Working up zinc- and lead-bearing residual materials obtained in steel making industryin view of a further metallurgical treatment

Die Reststoffe werden in Mischung mit thermisch inerten Zusatzstoffen und mit backender Steinkohle als Bindemittel bei einer Temperatur von 490 +/- 40°C brikettiert, wobei der Anteil an Kohlenstoff wesentlich über der für die Reduktion der Metallbestandteile erforderlichen Menge liegt. Die backende Steinkohle wird in Mengen von 20 bis 40 Gewichtsprozent in das Gemisch eingebracht und vor der Herstellung der Mischung auf eine unter ihrem Erweichungspunkt liegende Temperatur von 280 bis 360° C gebracht. Die Reststoffe werden mit eventuellen Zusätzen von Inertstoffen auf eine Temperatur von 550-700° C vorerhitzt und dann mit der vorerhitzten backenden Steinkohle gemischt. Das etwa 490° C heisse Brikettiergut wird durch Verweilen in ständiger Bewegung weitgehend entteert, in geringem Umfang entgast und anschliessend brikettiert. Bei einer weiteren Entgasung bei über 700° C wird das aus den Briketts entweichende Zink und Blei durch Kühlung vom Gas abgetrennt. Die entzinkten und entbleiten Heissbriketts können zu Reduktionszwecken in Schacht- oder Elektroöfen sowie als Aufkohlungs- bzw. Desoxydationsmittel oder als Energieträger zur Steuerung der Wärmebilanz in Konvertern oder Elektroöfen eingesetzt werden. The residues are briquetted in a mixture with thermally inert additives and with baking hard coal as a binder at a temperature of 490 +/- 40 ° C, the proportion of carbon being significantly above the amount required for the reduction of the metal components. The baking hard coal is introduced into the mixture in amounts of 20 to 40 percent by weight and brought to a temperature below its softening point of 280 to 360 ° C. before the mixture is produced. The residues are preheated to a temperature of 550-700 ° C with possible additions of inert substances and then mixed with the preheated baking coal. The briquetting material, which is at around 490 ° C, is largely de-aerated by lingering in constant motion, degassed to a small extent and then briquetted. In a further ...

A kind of method of low-grade lead Zinc oxide resource utilization

本发明涉及一种低品位铅锌氧化矿资源化利用的方法，属于铅锌氧化矿的资源综合利用领域，具体工艺步骤为：将低品位铅锌氧化矿破碎球磨之后进行混合浮选，选出铅锌精矿和浮选尾矿；再将浮选尾矿进行磁选，尾矿铁含量选至3%～5%，产出铁精矿和磁选尾矿；磁选尾矿配入细磨的还原剂、石灰石、页岩混合均匀并制粒，在回转窑中进行铅锌还原挥发，通过收尘系统获得氧化铅锌烟尘；窑渣进入水泥窑进行煅烧，获得水泥熟料。本发明同步实现低品位铅锌氧化矿有价金属的提取与和挥发窑渣的资源化利用，浮选、磁选获得铅锌混合精矿和铁精矿，铅锌富集成为含铅锌烟尘，作为铅锌冶金的原料，还原挥发窑渣煅烧生产水泥，无废渣产出。

Method and apparatus of treating dusts containing oxides

본 발명에 의하면, 아연 및/또는 납의 산화물을 함유하는 폐기물과 하나 이상의 환원제가 열처리 노에 투입되기 전 또는 후에 흔합된다. 상기 혼합물은 노의 내부에서 실질적인 진공 조건하에서 소정 온도로 가열되어, 아연 및 또는 납의 산화물이 순수 금속 상태의 아연 및 또는 납으로 환원되고 증발된다. 증발된 아연 및/또는 납은 역시 실질적인 진공상태에서 회수 용기에 투입되며, 소정 온도에서 증발된 아연 및/또는 납이 응축되어 회수된다. According to the present invention, wastes containing oxides of zinc and / or lead and one or more reducing agents are mixed before or after the heat treatment furnace is introduced. The mixture is heated to a predetermined temperature under a substantial vacuum condition inside the furnace so that the oxide of zinc and / or lead is reduced and evaporated to the pure metal state zinc and / or lead. The evaporated zinc and / or lead is also put into the recovery vessel in a substantially vacuum state, and the evaporated zinc and / or lead is condensed and recovered at a predetermined temperature.

One kind reduction furnace oxygen lance device

本发明提供一种还原炉氧枪装置，包括枪身和枪砖，所述枪砖中心轴处设有通孔，通孔内部的前端设有气流分布器，枪砖内部设有第一冷却通道和第二冷却通道，所述枪身包括中心管、第一套管和第二套管，所述中心管、第一套管和第二套管同轴，所述第一套管套合在中心管外，所述第二套管套合在第一套管外。本发明的还原炉氧枪装置寿命可从现有技术的7天延长至60天左右，极大的降低了生产成本，节约资源。

The oxygen-enriched side-blowing intensified smelting stove of leaded secondary material can be handled

本发明公开一种能高效处理含铅二次物料的富氧侧吹强化熔炼炉。本发明的富氧侧吹熔炼炉，包括炉顶、炉身、炉缸、渣道、前床、加料口、烟道、烟道水套、侧吹鼓风口、富氧混合气缸、炉渣出口和冰铜出口；所述炉顶设置于炉身上方，所述炉身设置于炉缸上方，所述渣道两端分别连通所述炉缸和前床，所述加料口和烟道设置于所述炉顶顶部，所述烟道内壁设置有所述烟道水套，所述侧吹鼓风口设置于炉身底部两侧，所述侧吹鼓风口内分别设置有风嘴，所述风嘴与富氧混合气缸连通；所述炉渣出口和冰铜出口设置于所述前床；所述烟道水套为雾化水套，所述烟道水套的内隔腔内设置有水雾喷头，所述水雾喷头通过水管连接水泵。

METHOD FOR EXTRACTION OF METALS FROM CONCENTRATES OF SULFUR ORE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 112 130 A (51) МПК C22B 5/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018112130, 15.08.2016 (71) Заявитель(и): КАРДЕНАС АРБЬЕТО, Франсиско Хавьер (PE) Приоритет(ы): (30) Конвенционный приоритет: 16.10.2015 PE 002185-2015/DIN (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.04.2018 R U (43) Дата публикации заявки: 07.10.2019 Бюл. № 28 (72) Автор(ы): КАРДЕНАС АРБЬЕТО, Франсиско Хавьер (PE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/065622 (20.04.2017) A Адрес для переписки: 188306, Ленинградская обл., Гатчинский р-н, г. Гатчина 6, а/я 17, ООО "Бурова и партнеры" (для патентного поверенного Федорова С.В.) R U (57) Формула изобретения 1. Способ непрерывного извлечения металлов из серосодержащих руд с ассоциированным железом или без него, характеризующийся прямым восстановлением определенного металла или металлов, подлежащих извлечению, с регенерацией и повторным использованием железа в качестве восстановителя и карбоната натрия в качестве флюса из шлака, жидкости и газообразных выделений, полученных при протекании применяемых процессов, включающий в себя следующие стадии: - извлекают металлы в плавильной печи, где плавят концентраты серосодержащих железных и/или нежелезных руд, содержащих извлекаемый металл, включая свинец, серебро, цинк, медь, молибден, сурьму, мышьяк, но не ограничиваясь ими, с ассоциированным железом или без него, а в некоторых случаях с включением золота и серебра, используя железо в качестве восстановителя указанных цветных металлов и карбонат натрия в качестве флюса, и в результате получают расплавленные или порошкообразные извлекаемые металлы, шлак контролируемого состава, состоящий из оксида железа и сульфида натрия, и газообразные выделения диоксида углерода; - селективно растворяют в воде сульфид натрия из шлака и отделяют остаток фильтрованием для получения двух промежуточных продуктов - твердого остатка ...

Treatment of by product containing zinc and/or lead in steelmanufacture

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Furnace controller and method of operating a furnace

노의 제어 체계는 성능을 모델링하기 위해 실시간 및 이력 데이터를 사용할 수 있으며, 실시간으로 노의 차선적 성능을 보정하는 데 사용하기 위해 다양한 데이터와 성능 파라미터 사이의 관계를 결정할 수 있다. 기준선을 설정하기 위해 일정 시간 기간 동안 모든 사이클에 대해 작동 파라미터를 사이클 전체에 걸쳐 로그화할 수 있다. 그 후, 이 데이터를 사용하여 프로세스의 성능을 계산할 수 있다. 성능의 상이한 측면에 영향을 미치는 파라미터를 결정하기 위해 회귀 분석을 수행할 수 있다. 그 후, 이러한 관계를 사용하여 단일 사이클 동안 실시간으로 성능을 예측하고 폐루프 또는 개루프 피드백을 제공하여 노 작동을 제어함으로써 성능을 개선시킬 수 있다.

Device and method for cooperative quenching and tempering of steel slag and nonferrous metal smelting slag

本发明公开了一种钢渣与有色金属冶炼渣协同调质处理的装置及方法，属于钢铁冶金技术领域，解决了现有技术中有色金属冶炼渣中金属资源回收难，渣堆放堆存环境污染严重，现有钢渣处理方法钢渣高温显热未充分利用，钢渣中铁氧化物回收低的问题。协同调质处理的装置包括调质炉和驱动机构，调质炉包括调质炉熔池，调质炉的上部设有钢渣进料口和有色金属冶炼渣进料口，调质炉还设置有煤氧枪；驱动机构设置在调质炉的底部，用于带动调质炉进行摆动回转；还包括烘干预处理单元。本发明的装置能够进行钢渣与有色金属冶炼渣协同调质处理，实现钢渣改性和铁资源回收；调质后渣经过处理能做水泥原料或建筑用人造砂石料。

Solder recovery method and apparatus

본 발명은 산화 불순물로부터 땜납을 회수하기 위한 방법과 장치에 관한 것이다. 산화 불순물이 가열된 챔버(1)내부로 들어간다. 가열된 산화 불순물은 산화 불순물에서의 우수한 땜납을 수집 트레이(17) 내부로 압박하기 위해 피스톤(21)에 의해 압축된다. The present invention relates to a method and apparatus for recovering solder from oxidizing impurities. Oxidized impurities enter the heated chamber 1. The heated oxidized impurity is compressed by the piston 21 to press the good solder in the oxidized impurity into the collection tray 17.

A kind of environment-friendly high-efficiency resource recovery process of low-grade matte slag

本发明公开了一种低品位冰铜渣的环保高效资源回收工艺，属于固体废物资源化领域。该环保高效资源回收工艺包含以下的处理方法和步骤：1)冰铜渣经破碎球磨处理，磁选回收生产过程中加入的还原性Fe；步骤1)所得磁选尾矿经陶瓷过滤机脱水后烘干粉碎，并加入还原煤粉、腐殖酸钠及膨润土，搅拌均匀后造球；步骤2)中的球团经还原焙烧后球磨磁选。本发明采用的工艺包括磁选、造球、还原焙烧工艺，均为低成本处理方法，且由于回收得到的还原性Fe及磁性铁精矿占冰铜渣总量的40‑70％，具有较高的经济价值，为高铁含量低品位冰铜渣的综合利用提供了一个新的方法。

Comprehensive recovery treatment method and equipment for lead-zinc smelting slag

一种铅锌冶炼渣综合回收处理方法及其处理设备，是将以铅锌冶炼渣为主的物料先送入干燥窑，与高温烟气充分接触干燥、预热后，再送入熔炼炉，通过向熔炼炉内鼓入粉煤和富氧空气，将物料快速熔化，熔化后的物料在向出渣口流动的过程中，进一步与鼓入的粉煤和富氧空气发生氧化还原反应，将物料中的有价金属挥发进入烟气，烟气上升经熔炼炉出烟口进入干燥窑，与干燥窑中的物料热交换后通过干燥窑出烟口进入冷却器，经降温、初步沉降后进入布袋收尘器过滤，回收有价金属产品，废气经引风机进入烟囱排空，熔炼炉内的熔渣从出渣口流出，经水淬后形成环保固化渣。本发明可连续处理铅锌冶炼废渣，充分回收有价金属，充分利用余热并产出达标环保的固化渣。

Assemble for reprocessing of powdered lead- and zinc-containing raw materials

FIELD: metallurgy. SUBSTANCE: invention relates to ferrous metallurgy, mainly to devices for reprocessing of powdered lead- and zinc-containing raw materials, in which there can be copper and precious metals. Aggregate for reprocessing of powdered lead- and zinc-containing raw materials contains rectangular upright smelting chamber with burner facility, gas cooler stack, partition with water-cooled copper elements, separating smelting chamber from gas cooler stack, electric furnace, separated from the smelting chamber by partition with water-cooled copper elements, coffer chord, facilities for discharge of smelting products, bottom, herewith correlation of difference of level of bottom edges to distance from the smelting chamber crown to bottom edge of partition, separating electric furnace from the smelting chamber, is 0.15-0.29, and relation of distance from bottom edge of this partition up to bottom to difference of level of bottom edges is 1.25-2.10. On walls of gas cooler stack of aggregate there are installed not more than two tuyers on the level of bottom edge of partition, separating gas cooler stack from smelting chamber, with inclination into the side of bottom on-the-mitre to horizontal plane, specified by formula α=arctg(k-ΔH/B), where α - angle of tuyers slope; k - coefficient of angle of tuyers slope, equal to 1.11-1.25; ΔH - difference of level of bottom edges of partitions; B - inside width of gas cooler stack. At mounting of two tuyers they are located by one on each of opposite side walls of gas cooler stack with reflector displacement relative to its cross-axial section. Additionally each of it is located at a distance of cross-axial section of gas cooler stack, relation of which to inside length of gas cooler stack is 0.25-0.30. EFFECT: it is provided simultaneous increasing of direct lead extraction into crude metal and unit specific capacity. 3 cl, 4 dwg, 2 tbl, 16 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 359 188 (13) C2 (51) МПК F27B 17/00 (2006 ...

A kind of high ferro zinc leaching residue clean utilization method

本发明涉及一种高铁锌浸渣清洁利用方法，属于选冶技术领域。首先将高铁锌浸渣干燥脱水，然后同时添加还原剂和硫化剂，在温度为400℃~900℃条件下进行碳‑硫混合气氛焙烧反0.5h~3.5h，焙烧结束后，通入氮气或氩气作保护气体，以150℃/h~300℃/h的速度进行缓慢冷却，待温度降至200℃以下后水淬得水淬渣；将得到的水淬渣进行常规的浮选处理，得到人造硫化矿精矿和浮选尾矿；将得到的浮选尾矿进行常规的强磁磁选得到锌铁氧化物精矿，锌铁氧化物精矿通入气体还原剂并在温度为950℃~1300℃还原挥发反应1.0h~4.0h，还原挥发结束后，将挥发出来的气体回收后得到含铟的锌产品，挥发剩余的固体冷却后得到铁产品。本发明铜、铅、锌、铟和银等有价金属元素可高效回收以及无铁渣生成的高值化、清洁新技术。

Processing method of lead-bearing materials

FIELD: metallurgy. SUBSTANCE: invention relates to non-ferrous metallurgy, particularly to methods of processing of lead-bearing materials. Method includes stock preparation by means of thorough mixing of moist sulphide and oxidised lead-bearing materials with flux and powdered carbonaceous material, herewith mass relation of total sulphide, elementary and sulfur sulphur to total content of sulphur in charge is 0.08-0.87, and powdered carbonaceous material with activation energy of reaction of carbon gasification in the range 56-209 kJ/mole is introduced in the capacity of reducer at 4-12 kg clean carbon per 100 kg of ferric iron and 20-140 kg of clean carbon per 100 kg of sulphate sulphur in stock, drying of received moist stock up to required moisture less than 1%, sintering-melting of dry stock flash roasting in oxygen atmosphere with receiving of disperse oxide melt and mixture if dust and gases of sintering-melting, reducing of disperse oxide melt at its filtration through the layer of heated particles of crushed carbonaceous reducer of size 2-50 mm with receiving of metallic lead, zinc-containing oxide melt and gases, mixture with dust and gases of sintering-melting of dry stock, division of received mixture of dust and reactionary gases with return of dust to sintering-melting of dry stock. Dry stock is subject to blending and classification, and to sintering-melting stage it is fed extracted fraction of dry stock, not less than 90% mass of which are particles with size 0.01-0.10 mm. Additionally content of free moisture in stock at the stage of its preparation is 8-16%, and in the capacity crushed carbonaceous reducer it is used coal with content in dry mass of common carbon is about 49 up to about 80% and volatile from about 11 up to about 27%. EFFECT: increasing of lead extraction into crude metal and dedicated throughput of the process at simultaneous reduction of energy resource cost per unit. 3 cl, 3 dwg, 3 tbl, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 ...

A kind of integrated conduct method of arsenic-containing material

本发明涉及一种含砷物料的综合处理方法，包括从含有砷锑铅的冶炼烟尘综合回收砷、锑、铅、铋等有价金属的生产，减少砷在系统累积并使其无害化。本发明提供的方法通过常压碱浸，脱除烟尘中可溶砷，浸出液中三价砷经催化氧化为五价砷后，采用分布结晶法合成稳定的固砷矿物，然后采用堆存的方式固化固砷矿物，浸出渣经洗涤、还原熔炼、氧化吹炼等工序，最大化回收利用各有价元素。此方法将砷从烟尘中脱除，而使锑、铅、铋等尽可能留在脱砷渣中，可以实现砷与有价金属的分离并无害化。本发明资源综合利用率高，原料适应范围广，解决了传统工艺提取过程中污染问题，特别是铅锌冶炼过程中产生的烟灰，本方法的优势更加明显。

Method for processing lead-containing materials

本发明涉及非铁冶金，主要涉及处理含铅材料的方法。本发明的任务是增加至粗铅的铅回收率和工艺的比容量，同时降低能量载体的比消耗。本发明的方法包括进料制备和干燥、在氧气氛中以悬浮状态进行进料的焙烧－熔炼，产生氧化物熔体和粉尘与焙烧－熔炼气体的混合物；在熔体过滤通过碳还原剂的受热颗粒层时该熔体被还原，产生金属铅、含锌的氧化物熔体和气体。进料经历造粒和分级，并且向焙烧－熔炼阶段供应干进料的分离部分，该分离部分质量不小于90％由粒径为0.01－0.10mm的颗粒组成。因而，在进料的制备阶段中，进料中的游离水分含量达到8－16％，并且使用在干质量中的总碳含量为大约49至大约80％并且挥发物为大约11至大约27％的煤作为碳还原剂。

Method for the extraction of metals from concentrated sulphate minerals containing metals by direct reduction with regeneration and recycling of reducing agent iron and flux sodium carbonate

"환원제 철과 플럭스 탄산나트륨의 재생과 재활용과 함께 직접 환원으로 금속을 함유하는 농축된 황산염 광물로부터 금속을 추출하는 방법"이라는 제목의 발명은 철금속 및 비철금속을 함유하는 황산염 광물에서 철금속 및 비철금속을 추출하는 종래의 공정에 대한 대안으로서 제시되는데, 개선된 직접 환원 공정, 즉 종래의 야금학에서 발생하는 이산화황 배출물 및 슬래그를 발생시키지 않는, 환경 오염을 최소화하는 공정이 적용된다. 그리고 환원제인 철 및 플럭스인 탄산나트륨을 재생 및 재활용함으로써 야금 공정 작동 비용이 실질적으로 감소된다 요즘에는, 채광 활동에서 금속의 추출은 종래 및 최신 공정에 의해 수행된다. 한편으로는, 용융로에서 금속을 추출하기 전 광물의 토스팅 전처리를 수반하는 종래의 고온 건식 야금의 공정이, 그리고 다른 한편으로는, 황산염 광물이 먼저 토스팅되고, 그 후 추출될 용해된 금속이 침출 및 전착되는, 고온 건식, 습식, 전기 야금의 결합된 공정이 있다. 그러나 이러한 공정은 매우 오염적이다. 최신의 공정의 경우, 금속의 추출에 박태리아를 이용하는, 공정이 느리다는 단점을 갖는, 생체 야금도 볼 수 있다. 한편, 습식 야금은 고압에서 사용되고, 고투자비용 및 운영비용을 수반한다. 새로운 야금학적 공정은 이하로 구성된다: - 환원제로서 철 및 플럭스로서 탄산나트륨을 사용하여 용융로에서 금속을 추출 - 슬래그로부터의 황화나트륨의 물에서 선택적 용해 및 폐기물 산화제일철의 여과 - 재활용을 위한 탄산나트륨의 재생 - 황화수소의 제거 및 원소 황 획득 - 철금속의 후속 환원을 위해 산화제일철 응집체를 소결 - 환원 가스인 일산화탄소 및 수소의 생성 - 산화제일철로부터의 재활용을 위한 금속 철의 재생성 제안된 기술 혁신은 독창적인 고온 건식 및 습식 야금 공정을 결합한 것으로, 종래의 것과 달리, 황산염 광물 농축물의 토스팅 전처리를 요구하지 않으며, 기술적 및 경제적으로 현재 이용되는 공정들에 비해 이점이 있는데, 이는 금속 추출을 위해 단일 반응기를 사용하여, 금속의 양의 산화수를 0으로 직접 환원기 때문이다. 이는 야금학적 투입물을 상보적인 공정으로, 화학 반응의 속도론에서의 고속으로, 그리고 이 모든 것은 슬래그 및 오염 가스의 생성 없이, 재생성 및 재활용한다. 그 결과, 금속의 추출은 저운영비용과 환경 지속 가능한 방식으로, 즉 고 환경복원 비용을 피하면서, 달성된다. 제시된 발명은 또한 광미의 처리 및 환경 의무에도 적용되어, 환경적으로 그닥 책임감 없던 채광 활동으로 인해 몇년간 축적되어온 그리고 고비용의 수반으로 인해 현재까지 해결이 불가능했던 문제들을 해결할 수 있다는 것을 주목하는 것은 중요하다. 결과적으로, 이 공정을 적용함으로써, 더 낮은 금속 가격이라는 시나리오 하에서도, 채광 프로젝트의 경제적 상업성이 증가한다. 관련 공정은 채광 회사들이 그들의 추출 활동에 대한 더 낮은 컷오프와 현금 비용을 얻을 수 있게 하고, 결국, 광물 농축물의 수출보다도, 금속의 수출로부터 더 높은 수익을 생성하게 한다. 게다가, 깨끗하고 환경친화적 기술이기에, 광산 폐쇄 비용을 급진적으로 감소하게 한다. 결과적으로, 이 공정은 채광 활동의 더 높은 수준의 수익성과 지속성을 제공한다. 반면, 채광 활동에서 제안된 공정의 점진적인 수행으로, 수출 증가로 인한 무역수지의 증가와, 높은 기업이익에 의해 생성될 더 높은 세금 수익 덕분에, 정부는 이익을 얻을 것이다. 결국, 이는 채광 로열티로 인해 창출될 더 높은 수익으로 지역 및 지방 정부에 긍정적인 영향을 미친다. 채광 활동의 증가는 철강, 금속 가공 및 건설 산업과 같은 다른 부문의 경제를 활성화 뿐만 아니라, 직접 및 간접 고용 창출의 근원을 의미할 것이다. 이에 덧붙여, 환경 정화 책임이 비용이 낮다. 즉, 정부의 더 높은 수익 창출 및 이로써 주민에 대한 사회 경제적 복지가 확대되도록 하는 잠재력을 갖는다. 환경 분야에서의 이러한 기술 혁신의 이점은, 그 범위가 투입물의 재생 및 재활용, 추출 공정에서 슬래그와 오염가스 제거에서부터 기존의 환경 ...

Recovery of solder

FIELD: solder recovery from dross. SUBSTANCE: dross is poured into heated chamber 1. Then dross is heated up to temperature of at least 225 C and pressed by piston 21 for displacement of proper solder from dross into trough 17 for discharge. The device for solder recovery has cylindrical chamber with piston and heater. Discharge channel is made for removal of recovered solder through many holes. EFFECT: higher yield of satisfactory solder recovered from wastes, simplification of solder recovery process. 18 cl, 8 dwg Гуэ9эсбутс ПЧ ГЭ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 145 641 ' (51) МПК? 13) СЛ С 22 В 25/06, 7/04, В23 К 1/018 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96118501102, 17.03.1995 (24) Дата начала действия патента: 17.03.1995 (30) Приоритет: 18.03.1994 СВ 9405418.6 (46) Дата публикации: 20.02.2000 (56) Ссылки: Ц$ 4334664 А, 15.06.82. ЗЦ 616319 А, 09.06.78. 5Ц 1640187 А, 07.04.91. 4$ 4565512 А, 21.01.86. (85) Дата перевода заявки РСТ на национальную фазу: 17.09.1996 (86) Заявка РСТ: СВ 95/00612 (17.03.1995) (87) Публикация РСТ: \/О 95/25823 (28.09.1995) (98) Адрес для переписки: 129010, Москва, ул.Б.Спасская, 25, стр.3, ООО "Городисский и партнеры", Патентному поверенному, Нач.отд.электроники и физики Емельянову Е.И. (71) Заявитель: Эппл Хауз (Электроникс) Лтд. (СВ) (72) Изобретатель: Стивен Энтони Джонсон (СВ) (73) Патентообладатель: Эппл Хауз (Электроникс) Лтд. (СВ) (54) ИЗВЛЕЧЕНИЕ ПРИПОЯ (57) Реферат: Изобретение может быть использовано при получении припоя из дросса. Согласно способу дросс заливают в нагреваемую камеру 1. Затем нагретый до температуры не менее 225°С дросс прессуют поршнем 21 для вытеснения хорошего припоя из дросса в желоб 17 для сброса. Устройство для извлечения припоя содержит цилиндрическую камеру с поршнем и нагреватель. Выпускной канал выполнен с возможностью удаления извлеченного припоя через множество отверстий. Изобретение позволяет повысить выход годного припоя при ...

Metallurgy method of high-sulfur lead slag containing zinc and tin

本发明公开了一种含锌和锡的高硫铅渣的冶金方法，(1)原料处理工序，(2)混合、造球、烘干工序，(3)烟煤准备工序，(4)转底炉还原工序，(5)烟气收尘工序，(6)高温筛分工序，(7)磨矿磁选工序，本发明高硫铅渣、还原煤粒度获得了意想不到的技术效果，避免了造成物料熔化现象，影响转底炉生产，还原效果变差，影响铅、锌、锡的脱除率的问题；本发明添加少，对环境友好，同时回收率高，杂质少，生产耗能少，提高生产值。

Method for recycling valuable metal in waste circuit board

本发明公开了一种回收废电路板中有价金属的方法，包括以下步骤：将废电路板经破碎、重选后制得多金属粉末；向多金属粉末中加入稀酸溶液，搅拌浸出，过滤，得浸出渣I和浸出液I；按酸溶液与浸出渣I液固质量比10～40:1向浸出渣I中加入酸溶液，然后加氧化剂，搅拌浸出，浸出完成后过滤，得浸出渣II和浸出液II；浸出液II经旋流电积得阴极铜和电解后溶液；向浸出渣II中加入碱和还原剂，在400～600℃条件下熔炼，水浸，过滤，得含有贵金属的粗铅和浸出液III；浸出液III经净化，蒸发浓缩，得浓缩碱溶液和锡酸钠晶体。该回收废电路板中有价金属的方法流程短、效率高、成本低、清洁无污染。

Integrated pyrometallurgical furnace and method for treating zinc leaching residues

本发明公开了一体化火法冶炼炉和处理锌浸出渣的方法，其中，一体化火法冶炼炉包括冶炼炉本体，所述冶炼炉本体内限定出熔炼区和电热还原区，所述熔炼区和所述电热还原区之间设有隔墙，并且所述熔炼区和所述电热还原区底部连通；熔炼区上设有物料入口、含氧气体喷枪和熔炼烟气出口，电热还原区上设有电极、还原剂喷枪、含锌蒸汽出口、排渣口和金属熔体出口。由此，采用该一体化火法冶炼炉可以实现锌浸出渣的短流程和低能耗处理，并且铅、铁、银、铟、锗等有价金属均得到综合回收，而且锌元素具有较高的直收率。

The roasting apparatus for concentrated sulfide

A roasting apparatus for concentrated sulfide is provided to roast the sulfide smoothly by spraying compressed air in the center of a screw and forming an upper part of a pipe on a main body. A roasting apparatus for concentrated sulfide comprises a main body(10) for forming a roasting space, a plurality of transfer screws(20), a screw rotating unit(30), a heating unit(40), a plurality of gas discharge pipes(50), and a sulfide cooling transferring unit(60). A plurality of pipe bodies(12) are formed on a lower part. A roasting space(13) is formed on the main body. A sulfide discharge hole(14) is formed on the main body. A plurality of transfer screws transfer the flowed sulfide. The sulfide cooling transferring unit includes a cooling unit(61).

Oxygen tuyere of melting metallurgical furnace with side immersion of combustion chamber and metallurgical furnace with oxygen tuyere

FIELD: metallurgy. SUBSTANCE: invention relates to metallurgy and can be used for melting metallurgical furnace at blowing of pulverized coal in oxygen flow. Tuyere comprises outer pressure tube, internal limiting inlet for gas supporting combustion, outlet hole for gas supporting combustion, and plug-in branch pipe, self-locking element installed on plug-in connection pipe of external delivery pipe, internal discharge tube having inlet hole for medium, nozzle for medium injection and nozzle for cleaning of medium, inserted with possibility of disconnection into pluggable self-locking element, and a blocking element installed in the inner pressure tube for opening or closing the medium cleaning branch pipe, and a plug configured to stop output of second self-locking element from second housing, installed with possibility of disconnection in second housing, and which has nozzle for cleaning of block, which is connected with channel for cleaning of block. EFFECT: invention makes it possible to clean in time the obstructions of the internal pressure tube, and also to eliminate the need to reduce the liquid level in the molten metal bath, when inner pressure tube is disconnected for maintenance, ensuring normal operation of metallurgical furnace and increasing product output. 9 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 706 900 C1 (51) МПК F27D 3/18 (2006.01) C21B 7/16 (2006.01) C21C 5/48 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F27D 3/18 (2019.05); C21B 7/16 (2019.05); C21C 5/48 (2019.05) (21)(22) Заявка: 2018138058, 02.03.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: 21.11.2019 01.04.2016 CN 201610203843.0; 01.04.2016 CN 201620270953.4 (73) Патентообладатель(и): ЧАЙНА ЭНФИ ИНЖИНИРИНГ КОРПОРЕЙШН (CN) (45) Опубликовано: 21.11.2019 Бюл. № 33 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.11.2018 (56) Список документов, цитированных в отчете о поиске: CN ...

Patent RU2018112130A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 112 130 A (51) МПК C22B 5/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018112130, 15.08.2016 (71) Заявитель(и): КАРДЕНАС АРБЬЕТО, Франсиско Хавьер (PE) Приоритет(ы): (30) Конвенционный приоритет: 16.10.2015 PE 002185-2015/DIN (85) Дата начала рассмотрения заявки PCT на национальной фазе: 04.04.2018 R U (43) Дата публикации заявки: 07.10.2019 Бюл. № 28 (72) Автор(ы): КАРДЕНАС АРБЬЕТО, Франсиско Хавьер (PE) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/065622 (20.04.2017) A Адрес для переписки: 188306, Ленинградская обл., Гатчинский р-н, г. Гатчина 6, а/я 17, ООО "Бурова и партнеры" (для патентного поверенного Федорова С.В.) R U (57) Формула изобретения 1. Способ непрерывного извлечения металлов из серосодержащих руд с ассоциированным железом или без него, характеризующийся прямым восстановлением определенного металла или металлов, подлежащих извлечению, с регенерацией и повторным использованием железа в качестве восстановителя и карбоната натрия в качестве флюса из шлака, жидкости и газообразных выделений, полученных при протекании применяемых процессов, включающий в себя следующие стадии: - извлекают металлы в плавильной печи, где плавят концентраты серосодержащих железных и/или нежелезных руд, содержащих извлекаемый металл, включая свинец, серебро, цинк, медь, молибден, сурьму, мышьяк, но не ограничиваясь ими, с ассоциированным железом или без него, а в некоторых случаях с включением золота и серебра, используя железо в качестве восстановителя указанных цветных металлов и карбонат натрия в качестве флюса, и в результате получают расплавленные или порошкообразные извлекаемые металлы, шлак контролируемого состава, состоящий из оксида железа и сульфида натрия, и газообразные выделения диоксида углерода; - селективно растворяют в воде сульфид натрия из шлака и отделяют остаток фильтрованием для получения двух промежуточных продуктов - твердого остатка ...

Storage battery solid waste lead slag efficient treatment device

本发明涉及一种废铅渣处理领域，尤其涉及一种蓄电池固废铅渣高效处理装置。本发明的技术问题：提供一种带有自动清洁和筛选功能的蓄电池固废铅渣高效处理装置。一种蓄电池固废铅渣高效处理装置，包括有底盘、搅拌桶、第一支架、第一桶、控料机构，第一输送管、第二支架、第二桶、第二输送管、导流阀门等；底盘上固接有搅拌桶，搅拌桶左侧固接有第一支架，第一支架上安装有第一桶，第一桶上连通有第一输送管，第一桶内设有控料机构。本发明通过喷水头和进水管的配合使用，可以充分的将搅拌桶内壁上的粘黏的混合物冲洗下来，并且配合转动轴的旋转以及搅拌桶内开设的凹槽，从而从分的对搅拌桶内壁以及转动轴进行全方位的冲洗。

METHOD FOR PRODUCING METALLIC LEAD

Die Erfindung betrifft ein Verfahren zur Erzeugung von metallischem Blei aus bleihaltigen Ausgangsstoffen durch Schmelzen der Ausgangsstoffe unter oxydierenden Bedingungen sowie durch Reduzieren der resultierenden oxidischen Schmelze. Das Verfahren kann zur Aufarbeitung von Blei-Ausgangsstoffen sulfidischer, oxydischer oder sulfatischer Art genutzt werden. Darueber hinaus kann das Verfahren vorteilhaft zur Aufarbeitung von Bleikarbonat enthaltenden Ausgangsstoffen genutzt werden, bei denen zumindest ein Teil des karbonathaltigen Materials Blei-Ausgangsmaterial enthalten kann. Ziel der Erfindung ist die Bereitstellung eines verbesserten Verfahrens, mit dem die Reduktionsgeschwindigkeit gesteigert und die Wirtschaftlichkeit verbessert werden kann. Die Reduktion erfolgt erfindungsgemaess mit in der Schmelze vorliegendem festem kohlenstoffhaltigem Reduktionsmittel, wobei zu gewaehrleisten ist, dass gemeinsam mit dem Reduktionsmittel auch festes karbonathaltiges Material - vorzugsweise Kalkstein, Dolomit oder wasserfreie Soda - in der Schmelze vorliegt. The invention relates to a method for producing metallic lead from lead-containing starting materials by melting the starting materials under oxidizing conditions and by reducing the resulting oxide melt. The process can be used for the processing of lead-sulfide, oxidic or sulfatic type starting materials. In addition, the process can be used advantageously for the workup of lead carbonate-containing starting materials, in which at least part of the carbonate-containing material may contain lead starting material. The aim of the invention is to provide an improved method by which the speed of reduction can be increased and the efficiency can be improved. The reduction takes place according to the invention with solid carbonaceous reducing agent present in the melt, wherein it must be ensured that solid carbonaceous material, preferably limestone, dolomite or anhydrous soda, is present in the melt together with the ...

Method for manufacturing sponge iron

Disclosed are a method and apparatus for manufacturing sponge iron by the continuous reduction of iron oxides in a shaft utilizing recirculation gases. A reducing agent such as pit coal is injected together with an oxidant into the hot gas from the plasma burner in order to form a gas mixture comprised primarily of CO and H2, which gas mixture is then mixed with the other flow portion of the cleaned reaction gas in such proportion that the temperature of the resulting reduction gas is suitable for the reduction of iron oxides in the shaft furnace.

Waste electric battery disposal plant

FIELD: process engineering. ^ SUBSTANCE: invention relates to disposal of waste storage batteries, namely acid-lead batteries. Proposed plant comprises storage battery crusher and one or more apparatuses to separate and dispose various battery components (metal grids and electrodes, low- and high- molecular plastic materials, paste and electrolyte). Note here that afore-mentioned apparatuses are carried on mobile module, for example a semitrailer Note also that proposed plant may additionally comprises waste battery loader to be carried on second semitrailer. ^ EFFECT: safety, compact design, lower costs. ^ 40 cl, 13 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 403 993 (13) C2 (51) МПК B09B C22B 3/00 7/00 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008112671/03, 31.08.2006 (24) Дата начала отсчета срока действия патента: 31.08.2006 (73) Патентообладатель(и): НЬЮ ЭНЕРДЖИ ПАУЭР С.Р.Л. (IT) R U (30) Конвенционный приоритет: 02.09.2005 IT TO2005A000598 (72) Автор(ы): САРАЧЕНО Деметрио (IT) (43) Дата публикации заявки: 10.10.2009 2 4 0 3 9 9 3 (45) Опубликовано: 20.11.2010 Бюл. № 32 (56) Список документов, цитированных в отчете о поиске: RU 2070590 C1, 20.12.1996. SU 1621818 A3, 15.01.1991. RU 2146298 C1, 10.03.2000. US 3892563 A, 01.07.1975. US 5173277 A, 22.12.1992. US 5303872 A, 19.04.1994. EP 547466 A1, 23.06.1993. FR 2512065 A, 04.03.1983. 2 4 0 3 9 9 3 R U (86) Заявка PCT: IB 2006/053028 (31.08.2006) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 02.04.2008 (87) Публикация PCT: WO 2007/026322 (08.03.2007) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. С.Р.Абубакирову, рег.№ 931 (54) УСТАНОВКА ДЛЯ УТИЛИЗАЦИИ ОТРАБОТАННЫХ ЭЛЕКТРИЧЕСКИХ БАТАРЕЙ (57) Реферат: Группа изобретений относится к утилизации отработанных электрических батарей, в частности к установке для утилизации ...

Patent RU2020119164A3

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2020 119 164 A (51) МПК C22B 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2020119164, 11.12.2018 (71) Заявитель(и): МЕТАЛЛО БЕЛДЖИУМ (BE) Приоритет(ы): (30) Конвенционный приоритет: 14.12.2017 EP 17207370.2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 14.07.2020 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2019/115540 (20.06.2019) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ производства припойного продукта и медного продукта, содержащий обеспечение первой металлической композиции (13) на основе свинца-олова, которая содержит по меньшей мере 40 мас. % меди и по меньшей мере 5,0 мас. % вместе олова и свинца, дополнительно содержащий стадии d) частичного окисления (500) первой жидкой ванны (450), содержащей первую металлическую композицию (13) на основе свинца-олова, формируя тем самым первую разбавленную медную металлическую композицию (15) и первый припойный рафинировочный шлак (16), с последующим отделением первого припойного рафинировочного шлака (16) от первой разбавленной медной металлической композиции (15), и l) частичного окисления (800) второй жидкой ванны (550), содержащей первую разбавленную медную металлическую композицию (15), формируя тем самым первую металлическую композицию (22) с высоким содержанием меди и третий припойный рафинировочный шлак (23), с последующим отделением третьего припойного рафинировочного шлака (23) от первой металлической композиции (22) с высоким содержанием меди, посредством чего припойный продукт получается из первого припойного рафинировочного шлака (16), и медный продукт получается из первой металлической композиции (22) с высоким содержанием меди, и опционально припойный продукт Стр.: 1 A 2 0 2 0 1 1 9 1 6 4 (54) УЛУЧШЕННЫЙ ПИРОМЕТАЛЛУРГИЧЕСКИЙ ПРОЦЕСС 2 0 2 0 1 1 9 1 6 4 EP 2018/084384 (11. ...

A method of directly blown low-grade oxidation lead zine ores with fuming furnace

本发明涉及一种用烟化炉直接吹炼低品位氧化铅锌原矿的方法，属于火法冶金技术领域，本发明利用烟化炉直接吹炼氧化铅锌原矿，原料无需制团制粒，可直接入炉；冶炼过程除去排放时间约20min/炉停止进料外，可连续生产，处理量大，床能力高；采取留热料操作，排放结束时留有热料提供热源，能耗低，产生的烟气有完善的回收处理系统，环保效果好；本发明通过控制合理的温度和还原气氛，可有效富集回收矿物中的铅锌锗银等有价金属，废渣含锌降至2.5%以下，含铅降至1%以下，金属回收率高。本发明可直接有效回收原矿中有价金属，具有工艺简单，处理量大、金属回收率高、生产成本低，环保效果好等特点，极具经济价值，推广应用价值极高。

Method of utilization of secondary raw materials containing iron, zinc and lead

FIELD: utilization of secondary raw materials containing iron, zinc and lead, mainly wastes of steel-making process at control of basicity of Waelz process slag. SUBSTANCE: proposed method includes mixing the charge containing raw materials and chemically active fine-grained carbon carrier, agglomeration and treatment of conglomerates thus obtained in furnace. Treatment is performed in rotary furnace working on counter-flow principle of charge and gas atmosphere; in the course of treatment, part of carbon carrier is fed to conglomerates so that total amount of carbon is lesser than 80% of amount of carbon required for reactions in charge; amount of chemically active fine-grained carbon carrier is strictly substoichiometric relative to all reactions in charge requiring carbon. EFFECT: enhanced balance of energy of Waelz process; increased productivity; improved quality of wastes. 5 cl ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) (13) 2 247 159 C2 C 22 B 7/00 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2000124618/02, 27.09.2000 (72) Àâòîð(û): ÇÀÀÃÅ Ýáåðõàðä (DE), ÕÀØÅ Óâå (DE), ÄÈÒÒÐÈÕ Âîëüôãàíã (DE), ËÀÍÃÁÀÉÍ Äèòõàðò (DE) (24) Äàòà íà÷àëà äåéñòâè ïàòåíòà: 27.09.2000 (30) Ïðèîðèòåò: 28.09.1999 DE 19946430.8 Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á. Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Þ.Ä.Êóçíåöîâó, ðåã.¹ 595 2 2 4 7 1 5 9 øèõòû è ãàçîâîé àòìîñôåðû, â ïðîöåññå îáðàáîòêè ê êîíãëîìåðàòàì ïîäàþò äîïîëíèòåëüíóþ ÷àñòü íîñèòåë óãëåðîäà òàê, ÷òîáû ñóììàðíîå êîëè÷åñòâî óãëåðîäà ñîñòàâë ëî ìåíåå 80% îò êîëè÷åñòâà, íåîáõîäèìîãî äë âñåõ ïîòðåáë þùèõ óãëåðîä ðåàêöèé â øèõòå, ïðè÷åì êîëè÷åñòâî õèìè÷åñêè àêòèâíîãî ìåëêîçåðíèñòîãî íîñèòåë óãëåðîäà âë åòñ ñòðîãî ñóáñòåõèîìåòðè÷åñêèì ïî îòíîøåíèþ êî âñåì ïîòðåáë þùèì óãëåðîä ðåàêöè ì â øèõòå. Îáåñïå÷èâàåòñ óëó÷øåíèå áàëàíñà ýíåðãèè ïðîöåññà âåëüöåâàíè , ïîâûøåíèå ïðîèçâîäèòåëüíîñòè èñïîëüçóåìîé ïå÷è è ...

Method for processing gold-containing waste residues by synergistic matching of copper smelting slag

本发明公开了一种铜冶炼渣协同搭配处理含金废渣的方法，包括以下步骤：(1)将铜吹炼渣/铜精炼渣、含金废渣、硫化剂1混合后进行熔炼得到富含金银铜锍、烟气和硫化渣，所述富含金银铜锍经精炼回收金、银、铜；(2)将步骤(1)得到的硫化渣与铜熔炼渣混合，加入硫化剂2熔炼，对熔炼产物进行浮选，得到硫化铜、硫化锌及硫化铅。本发明通过铜冶炼渣与含金废渣协同搭配，实现了铜吹炼渣/铜精炼渣及含金废渣中铜、金资源的高效富集回收；同时过程产生硫化渣与铜熔炼渣协同搭配，实现了铜冶炼渣中铜、铅、锌的高效富集。

Device for extracting volatile metals, such as zinc and lead, in the form of oxides from oxide wastes containing iron, and process employing this device

Device for extracting volatile metals, such as zinc and lead, present in oxidised wastes, especially iron and steel plant dust, of the type successively comprising in the path of the material: a fusion-reduction cyclone (1) into which is introduced a mixture containing the oxidised waste to be treated, oxygen and a carbonaceous material, a container (2) connected to the said cyclone (1), in which a liquid slag (3) is collected which is formed by the oxides of nonvolatile metals present in the waste, a conduit (7) for discharging the fumes found by the combustion gases and the volatile metals in gaseous form, a plant for postcombustion (8, 9) of the said combustion gases and for oxidation of the volatile metals, means (10) for recovering the oxides of volatile metals from the fumes, and means (11) for propelling the said fumes through the said device, the device being characterised in that the said container comprises means (13, 13') for injecting a preferably reducing gas into the said liquid slag.

Lead-zinc slag treatment system and application of system in treatment of lead-zinc slag

本发明公开了一种处理铅锌渣的系统及其在处理铅锌渣中的应用，所述系统包括：物料破碎系统、压球成型系统、转底炉直接还原系统和干式磁选系统；其中，物料破碎系统的出料口与压球成型系统的给料口相通，压球成型系统的出料口与转底炉直接还原系统的给料口相通，转底炉直接还原系统的出料口与干式磁选系统的给料口相通。采用本发明的系统处理铅锌渣可以实现含水的铅锌渣生球直接进入转底炉，在炉内实现生球的烘干、预热以及铅锌的回收，再经转底炉直接还原获得还原产品，通过后续干式磁选工序，获得高品位的铁颗粒。

PROCESS FOR THE RECOVERY OF CERTAIN VALUABLE METAL COMPONENTS FROM WASTEWATER

Procédé pour la récupération de métaux précieux à partir d'eaux usées. Ces composants apparaissant sous des concentrations très faibles, le procédé comporte les étapes suivantes : mélange des eaux usées ; capture des composants métalliques de valeur à partir de ces eaux par imprégnation bactérielle; coagulation et déshydratation de la matiere organique en la séparant ainsi des eaux usées sous la forme d'une boue; combustion de la boue déshydratée pour obtenir des cendres qui contiennent les composants métalliques de valeur et des élements résiduels gênants; séparation par dissolution et extraction de ces composants metalliques de valeur; purification des composants métalliques de valeur dissous pour récupérer les métaux sélectionnés. Aplication à la métallurgie. Process for the recovery of precious metals from wastewater. These components appearing in very low concentrations, the process comprises the following steps: mixing the waste water; capture of valuable metal components from these waters by bacterial impregnation; coagulation and dehydration of the organic material thereby separating it from the waste water in the form of a slurry; combustion of the dehydrated sludge to obtain ash which contains valuable metal components and troublesome residual elements; separation by dissolution and extraction of these valuable metal components; purification of dissolved valuable metal components to recover selected metals. Application to metallurgy.

TANK OVEN FOR METALLURGICAL TREATMENT OF NON-FERROUS METALS

CE FOUR A CUVE POUR LE TRAITEMENT METALLURGIQUE DE METAUX NON FERREUX COMPREND UN CREUSET REFRACTAIRE EN FORME DE VOUTE INVERSEE REPOSANT SUR DES ASSEMBLAGES DE PLAQUES PERIPHERIQUES 9 QUI PEUVENT SE DEPLACER AFIN DE COMPENSER LA DILATATION DU CREUSET, UNE CEINTURE DE RETENUE FORMEE PAR DES ELEMENTS METALLIQUES EN FORME DE CAISSON 19 ET DES PAROIS AINSI QU'UNE COUPOLE EN MATIERE REFRACTAIRE, LESDITS ELEMENTS ETANT SUPPORTES SEPAREMENT PAR UNE OSSATURE EXTERIEURE ET POUVANT COULISSER LES UNS PAR RAPPORT AUX AUTRES LORS DE LA DILATATION THERMIQUE. THIS TANK OVEN FOR THE METALLURGICAL TREATMENT OF NON-FERROUS METALS INCLUDES A REFRACTORY CRUCIBLE IN THE FORM OF A REVERSE VOUTE BASED ON ASSEMBLIES OF PERIPHERAL PLATES 9 WHICH MAY MOVE IN ORDER TO COMPENSATE THE DILATION OF THE CRUCIBLE, A STRENGTH OF A RETENTION IN THE FORM OF A CASE 19 AND WALLS AS WELL AS A COOLER IN REFRACTORY MATERIAL, THE SAID ELEMENTS BEING SUPPORTED SEPARATELY BY AN EXTERNAL FRAMEWORK AND MAY SLIDE THE ONE RELATIVE TO THE OTHERS DURING THE THERMAL EXPANSION.

Reduction device using liquid metal

A reduction device using a liquid metal, which can improve the oxidation reaction of a reducing agent for reducing a material to be reduced using a liquid metal, while simultaneously effectively controlling the same. The reduction device according to the present invention comprises: a storage unit in which the liquid metal is supplied and stored; a reducing agent positioned in the storage unit; a reduction unit positioned on a side of the storage unit, which receives a material to be reduced and enables fluid communication with the storage unit; and a liquid metal storage unit. According to the present invention, a reducing agent, which has strong reducing ability, is sublimated using a liquid metal, thereby further improving the reduction capability, and the same is also controlled precisely, thereby removing restrictions on use resulting from the explosive reaction of the reducing agent and guaranteeing efficient operation.

METHOD AND APPARATUS FOR SIMULTANEOUSLY SEPARATING VOLATILE METALS AND NON-VOLATILE METALS

PROCESS AND APPARATUS FOR THE PRODUCTION OF LEAD 212 FOR MEDICAL USE

Process for the recovery of antimonious lead and soft lead from used battery plates

Process for the production of lead

Lead ore desulfurization process

METHOD AND APPARATUS FOR SIMULTANEOUSLY SEPARATING VOLATILE METALS AND NON-VOLATILE METALS

L'INVENTION CONCERNE UN PROCEDE POUR SEPARER DES METAUX VOLATILS (ZINC, PLOMB, ETC.) ET DES METAUX NON VOLATILS (CUIVRE, ETC.) DE MELANGES DE METAUX ET D'OXYDES DE METAUX. DANS UN APPAREIL 10 COMPRENANT UNE ENCEINTE BASSE DE REACTION 12 ET UNE ENCEINTE HAUTE DE REFLUX 13, ET UN FUT CREUX 11 RELIANT LES DEUX ENCEINTES, ON REMPLIT PERIODIQUEMENT LE FLUX AVEC UN GARNISSAGE 26 (MELANGE DE MORCEAUX DE METAUX AVEC UN MINIMUM D'OXYDES ET D'UN MATERIAU CARBONE). DU METAL PULVERISE, POUVANT INCLURE DE GRANDES QUANTITES D'OXYDES, EST CHARGE EN CONTINU DANS L'ENCEINTE BASSE, AVEC UN MATERIAU CARBONE ET UN GAZ CONTENANT DE L'OXYGENE. UN GENERATEUR DE PLASMA 30 Y PROVOQUE UNE REDUCTION ET UNE FUSION DES METAUX VOLATILS, QUI FORMENT UNE MARE45 ET DES SCORIES 46 AU-DESSUS DE LA MARE, TANDIS QUE LES METAUX VOLATILS, VAPORISES, MONTENT DANS L'APPAREIL, EN ETANT LAVES ET FILTRES PAR LE GARNISSAGE. DANS L'ENCEINTE HAUTE, LA PRESSION ET LA VAPEUR SONT TELLES QUE LES VAPEURS DE PLOMB SEULEMENT SONT CONDENSEES, CELUI-CI RETOMBE PAR GRAVITE JUSQU'A LA MARE. LES METAUX NON CONDENSES (ZINC) SONT AMENES VERS UN CONDENSEUR 57 POUR FORMER DU ZINC COMMERCIAL. LA MARE ET LES SCORIES SONT SOUTIREES POUR OBTENIR RESPECTIVEMENT UN ALLIAGE DE CUIVRE COMMERCIAL ET UN AGGREGAT NON TOXIQUE A UTILISATION INDUSTRIELLE.2.581.397 THE INVENTION RELATES TO A PROCESS FOR SEPARATING VOLATILE METALS (ZINC, LEAD, ETC.) AND NON-VOLATILE METALS (COPPER, ETC.) FROM MIXTURES OF METALS AND OXIDES OF METALS. IN AN APPARATUS 10 COMPRISING A LOW REACTION SPEAKER 12 AND A HIGH REFLUX SPEAKER 13, AND A HOLLOW FUT 11 CONNECTING THE TWO SPEAKERS, THE FLOW IS PERIODICALLY FILLED WITH A TRIM 26 (MIXTURE OF METAL PIECES WITH A MINIMUM OF OXIDES AND CARBON MATERIAL). PULVERIZED METAL, WHICH MAY INCLUDE LARGE QUANTITIES OF OXIDES, IS CONTINUOUSLY LOADED INTO THE LOW ENCLOSURE, WITH CARBON MATERIAL AND GAS CONTAINING OXYGEN. A PLASMA 30 GENERATOR CAUSES A REDUCTION AND A FUSION OF VOLATILE ...

Sulphide ores smelting process

Method for separating and recovering valuable metals from copper smelting slag through chlorination roasting

本发明公开了一种铜冶炼渣氯化焙烧分离回收有价金属的方法，包括以下步骤：(1)将铜冶炼渣和氯化剂混合后进行一段升温，得到烟气和氯化渣；(2)将氯化渣进行二段升温至，得到烟气和清洁渣；(3)向清洁渣中加入还原剂进行还原反应，得到烟气和还原渣；(4)在惰性气体下将还原渣冷却至室温；(5)收集步骤(1)、步骤(2)与步骤(3)中的烟气分别得到氯化锌、氯化铅和氧化锌；对冷却后的还原渣进行磁选得到四氧化三铁。本发明的铜冶炼渣氯化焙烧分离回收有价金属的方法中创新性的通过调节炉内气氛和分段对氯化焙烧温度进行控制来分别回收铅锌铁资源，避免了后续铅锌分离的问题，铅锌铁资源取得了高的回收率。

Improvements in the smelting of metal products

Metal extraction - prodn of metals from basic and ultrabasic ores by diffusion roasting

Basic and ultrabasic ores, such as limonitic or serpentitic laterite may be addn. of reductants pref. C, coke and S, sulphides or sulphidising reagents, be utilised to produce metals, in partic. Co and Ni and also Zr, Hf Th and lanthanides. The ores are heated to 1400 degrees C and then cooled slowly in 100-200 degrees C steps. until solidification and then reheated to 700 degrees C upon which the complex sulphides formed during the diffusion annealing are broken down, the prods. of which are sepd. conventionally e.g. by grinding and magnetic sepn. etc. Single metals or combinations may be produced. The diffusion annealing takes 1-4 hrs.

Method for continuous reduction of molten metallurgical slag in an electric furnace

ABSTRACT OF THE DISCLOSURE A method is disclosed for the continuous recovery of non-ferrous metals from molten non-ferrous metal slags in an electric furnace. Fresh, oxidized slag from the melting of non-ferrous metals is continuously fed into the furnace and reduction is carried out by injecting carbon dust into the slag layer. The metal layer produced at the furnace bottom is kept very thin.

Process for the treatment of lead-sulphide or lead-zinc sulphide ores or of sulphide concentrates or of their mixtures

The invention relates to a process for the treatment of lead-sulphide or lead-zinc sulphide ores or of sulphide concentrates or of their mixtures in the presence of flux with addition of a circulation dust by roasting-melting them in a vertical flame under a technical oxygen atmosphere, followed by desulphurisation to a degree of 85 to 100 % and by reduction of the lead from the molten bath obtained with the aid of a solid reducing agent. According to the invention, the roasting-melting is performed in the presence of flux with a calcium oxide/silicon dioxide ratio of 0.15 to 0.75, and the reduction of the lead from the molten bath is carried out at a temperature of between 1100 DEG C and 1400 DEG C by filtration of the dispersed molten bath obtained during the roasting-melting in the vertical flame, through a layer of carboniferous material. The invention is particularly useful in the pyrometallurgical production of lead and the preparation of oxidised zinc sublimates from a polymetallic raw material.