• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
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  • 引用文献
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  • 优先权
    • 专利摘要:
    1410548 Treating ores; copper sulphide; iron oxide METALLGESELLSCHAFT AG and DEUTSCHE BABCOCK & WILCOX AG 4 Sept 1973 [28 Oct 1972] 41607/73 Heading C1A [Also in Divisions C7 and F4] Finely-divided solids, e.g. ores or ore concentrates, optionally mixed with fuels, are supplied from bin 1, Fig. 1, via a metered weigh belt conveyer 2 and metering rolls 3 to a proportioning device 4; a mixture of air from blower 10 and gas containing a high concentration of free oxygen from a cold vaporizer 11 is heated in exchanger 12 and also introduced into the proportionating device 4 to form a gas-solids suspension, the temperature being maintained below the ignition point of the solids. The suspension is discharged through concentric jets into a mixing chamber 5 and then accelerated through a nozzle constriction 18 to a vertical combustion passage 6. The suspension is ignited and the reaction is almost complete before the reaction flame reaches cyclone chamber 7. Gaseous and molten products are separated in the cyclone, the collected molten film passing through a secondary chamber 8 to a settler 9, which may be divided into two chambers, to separate materials of differing specific gravities, e.g. matter from slag; the gaseous products are deflected twice through 90 degrees in chamber 8 to separate entrained metallic droplets and then cooled to condense volatilization products. In examples, copper ore concentrates are treated to obtain copper matte; iron pyrites are treated to obtain a melt which may be turned into granules of iron oxidetogether with silica, calcium oxide etc.; a carbonaceous retort residue is treated to provide a melt containing iron, silica and other oxides, e.g. alumina, magnesia and calcium oxide.
    公开号:SU784797A3
    申请号:SU731961733
    申请日:1973-09-25
    公开日:1980-11-30
    发明作者:Херберт Рольф；Хоманн Райнер；Ре Лотар；Мэльцер Карл-Аугуст；Ран Мартин
    申请人:Металлгезельшафт АГ；Дойче Бабкок Унд Вилькокс Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD OF PYROMETALLURGICAL PROCESSING. SHRINK METAL-CONTAINING MATERIALS
    The invention relates to the field of metallurgy, in particular to the processing of fine-grained materials by fusion in cyclone aggregates. The known method of pyrometallurgical processing of fine-grained metal-containing materials in a horizontal cyclone chamber in a stream of oxygen-containing gas with fuel supply IJ. The known method does not provide sufficient purity of the resulting product. The aim of the invention is to increase the purity of the product obtained. The goal is achieved by the fact that prior to entering the cyclone chamber, the process is conducted in a vertical gas stream at a gas velocity of 0-30 m / s. The method is carried out as follows. Fine-grained material, oxygen-rich gas and fuel at a temperature below the reaction temperature are mixed into a slurry and injected at a rate that prevents backfiring, into a vertical firing zone. Such a slurry feed can be done using an inlet, I have | providing acceleration to the required speed. The duration of the reactions is equal to the hundredth of a meter of a second, and the length of the burning zone in this case is about 3 m is quite sufficient. The temperature of the waste gases must exceed the solidification temperature of the melt by at least. The fuel may be gaseous, liquid or solid. Instead of carbon-containing fuels, carbon-free substances can be used, such as pyrite, sulfur. By oxygen-rich gas is meant a gas containing no more than 30% by volume of oxygen. The specific surface of the particles of fine-grained material should be 10-1000, which corresponds to a particle diameter of 3-300 microns. The process is carried out at temperatures that allow volatilization of certain components , lead, arsenic, silver, cadmium, rhenium, selenium, tellurium, germanium, bismuth. So, for example, at 1600 ° C zinc is distilled off by 90%, and mouse and lead are more than 95%. gases can be carried out for example
    in the recovery boiler, either by injecting water or a mixture of air and water into the mass of exhaust gas, which helps to separate the melt droplets from the gas.
    The method is applicable to materials containing both iron and non-ferrous metals in sulphide or oxidized form.
    An example, Concentrate containing in wt.%: 25 copper, 30 iron and 33 sulfur with a particle size of 65% 80 microns, is mixed in a special device into suspension with a gas containing 55% oxygen, and is fed into the burning zone .. heat as the reaction proceeds temiepaTypa Increases to 1600 ° C. The gas containing melt droplets at an average speed of 12 m / s goes to the horizon; the cyclone chamber where the reaction ends. The gaseous reaction products are separated from the liquid by centrifugal force. Gaseous products containing 45% of sulfuric anhydride are directed to the production of sulfuric acid, and the resulting matte-slag melt is sent to a settling chamber where slag and matte are separated.
    According to the proposed technology, zinc oxide was processed with a purity of 98%, particle size of about 70 microns. The oxidized material is mixed into suspension with a gas containing 40% oxygen, and KOKcoBtOM gas containing,%: hydrogen 63, methane 23, carbon monoxide 5, and fed into the burning zone, at the end of which the temperature reaches 1500 ° C.
    The pre-stage calcine exits the horizontal cyclone chamber where the reaction is completed. The exhaust gases containing 5.6 vol.% Zinc are extracted with a liquid alloy () containing 98% lead and 2% zinc to extract the latter.
    权利要求:
    Claims (1)
    [1]
    1. Basics of metallurgy. M., Metallurgizdat, 1961, V.1, p.,; 30 s. 103-111.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU784797A3|1980-11-30|Method of pyrometallurgical processing of fine-grained metal-containing materials
    US3892559A|1975-07-01|Submerged smelting
    US2194454A|1940-03-19|Metallurgical process and apparatus
    US2209331A|1940-07-30|Roasting process
    US4169725A|1979-10-02|Process for the refining of sulfidic complex and mixed ores or concentrates
    US4555387A|1985-11-26|Flash roasting of molybdenum sulfide concentrates in a slagging reactor
    US4200454A|1980-04-29|Process for the volatilization of zinc and/or lead from metallurgical material
    US4493732A|1985-01-15|Method for implementing pyro-metallurgical processes
    DE1907204A1|1971-01-21|Process for the pyrometallurgical treatment of sulfidic iron ores or iron ore concentrates
    US4144051A|1979-03-13|Process for thermally treating solids with high-oxygen gases, especially for pyrometallurgical applications
    US3687656A|1972-08-29|Method of treating metal ores and ore concentrates
    US4108634A|1978-08-22|Process for thermally treating fine-grained solids
    US4578254A|1986-03-25|Process for the refining of sulfidic concentrates which contain arsenic, antimony and bismuth
    US4391632A|1983-07-05|Process for the separation of lead from a sulfidic concentrate
    US3317308A|1967-05-02|Process for reduction of iron ores
    US4283045A|1981-08-11|Apparatus for the continuous recovery of tin from iron rich concentrates
    US3649186A|1972-03-14|Continuous process for obtaining high-grade zinc oxide from zinc-containing minerals
    US2295039A|1942-09-08|Method of reducing ores
    US2745737A|1956-05-15|Process of reducing metallic ores with gases
    US3281237A|1966-10-25|Process for producing lead
    US3300300A|1967-01-24|Method for the treatment of zinciferous metallurgical slags and apparatus therefor
    DE2010872A1|1971-09-16|Sulphide iron ore conversion oxidation to iron - oxide
    Bryk et al.1966|Flash smelting of lead concentrates
    US1315551A|1919-09-09|hampton
    US527312A|1894-10-09|Method of smelting
    同族专利:
    公开号 | 公开日
    JPS4976703A|1974-07-24|
    DE2253074A1|1974-05-16|
    NO135480B|1977-01-03|
    ZA738276B|1974-09-25|
    AU6180373A|1975-05-01|
    BR7308399D0|1974-08-15|
    RO67592A|1981-08-17|
    AT336654B|1977-05-25|
    DE2253074C3|1983-12-22|
    NO135480C|1977-04-13|
    GB1410548A|1975-10-15|
    YU35463B|1981-02-28|
    DE2253074B2|1975-12-18|
    AU476134B2|1976-09-09|
    CA1007053A|1977-03-22|
    ATA913673A|1976-09-15|
    US3915692A|1975-10-28|
    YU275673A|1980-09-25|
    SE406479B|1979-02-12|
    JPS5644137B2|1981-10-17|
    ES418103A1|1976-03-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2209331A|1936-11-12|1940-07-30|Haglund Ture Robert|Roasting process|
    US2506557A|1947-04-03|1950-05-02|Bryk Petri Baldur|Method for smelting sulfide bearing raw materials|
    US2745732A|1952-10-28|1956-05-15|Ford Motor Co|Method of reducing ores by a particular fuel combustion mixture|
    US2865734A|1955-07-19|1958-12-23|British Iron Steel Research|Treatment of metal-containing materials|
    US2870003A|1957-06-17|1959-01-20|Ontario Research Foundation|Method of converting hematite to magnetite|
    DE1558749B2|1967-03-23|1976-06-10|Ministerstvo cvetnoj metallurgii, Moskau|PLANT FOR ROESTING, MELTING AND SUBLIMATING ORES OR CONCENTRATES CONTAINING NON-FERROUS METALS|
    US3607224A|1968-03-20|1971-09-21|Combustion Eng|Direct reduction of iron ore|
    DE1767628C3|1968-05-30|1985-03-14|Metallgesellschaft Ag, 6000 Frankfurt|Process for performing endothermic processes|
    FI45866C|1969-01-14|1972-10-10|Outokumpu Oy|Method used for smelting sulphide ores.|
    AT301193B|1969-04-25|1972-08-25|Metallgesellschaft Ag|Process and device for the pyrometallurgical treatment of small-sized ores or ore concentrates|
    DE2006945A1|1970-02-16|1971-09-02|Metallgesellschaft AG, 6000 Frank fürt, Deutsche Babcock & Wilcox AG, 4200 Oberhausen|Cyclone refining of iron sulphide ores and concentrates|
    DE2010872B2|1970-03-07|1972-02-17|Babcock & Wilcox Ag|Process for the pyrometallurgical treatment of sulfidic iron ores or iron ore concentrates|
    DE2038227C3|1970-07-31|1973-06-20|Vni Gornometallurgitscheskij I|Process for the preparation of ores and concentrates|
    DE2061980C3|1970-12-16|1975-11-13|Polysius Ag, 4723 Neubeckum|Plant for firing and / or sintering fine material|
    DE2109350A1|1971-02-27|1972-10-26|Metallgesellschaft AG, 6000 Frankfurt; Deutsche Babcock & Wilcox-AG, 4200 Oberhausen|Process for the production of phosphorus pentoxide|
    US3759501A|1971-12-13|1973-09-18|Kennecott Copper Corp|Cyclonic smelting apparatus|US3998631A|1975-04-17|1976-12-21|Union Carbide Corporation|Oxidation of molten ferrophosphorous|
    DE2716083C2|1977-04-12|1985-09-26|Deutsche Babcock Ag, 4200 Oberhausen|Process for the thermal treatment of solids|
    DE2716082C2|1977-04-12|1985-09-05|Deutsche Babcock Ag, 4200 Oberhausen|Process for the thermal treatment of solids|
    FI66199C|1982-02-12|1984-09-10|Outokumpu Oy|ANORDNING FOER SEPARERING AV FASTA OCH SMAELTA PARTICLAR FRAON METALLURGICAL UGNARS AVGASER SAMT SAETT ATT AOTERVINNA BLY FRAON DYLIKA AVGASER|
    DE3436624A1|1984-10-05|1986-04-10|Norddeutsche Affinerie AG, 2000 Hamburg|DEVICE FOR GENERATING FLAMMABLE SOLID / GAS SUSPENSIONS|
    DE3507371A1|1985-03-02|1986-09-04|Norddeutsche Affinerie AG, 2000 Hamburg|DEVICE FOR THE PYROMETALLURGICAL TREATMENT OF FINE-GRINED, MELT-LIQUID PRODUCTS OF RESULTING SOLIDS|
    US4654077B1|1985-11-19|1993-04-20|Manufacturers Hanover Trust Co|
    US4732368B1|1985-11-19|1993-04-20|Horsehead Resource Dev Co Inc|
    ZA905884B|1989-08-09|1991-08-28|Cra Services|Heating and treatment of particulate material|
    EP0436056B1|1990-01-04|1994-05-11|Kawasaki Jukogyo Kabushiki Kaisha|Method and apparatus for partial combustion of coal|
    NL9400936A|1994-06-09|1996-01-02|Hoogovens Groep Bv|Method for treating zinc-containing dust.|
    FI116571B|2003-09-30|2005-12-30|Outokumpu Oy|Process for melting inert material|
    CN106244825A|2016-08-04|2016-12-21|西北矿冶研究院|A kind of improve the method for gold and silver recoveries in copper metallurgy industry|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE2253074A|DE2253074C3|1972-10-28|1972-10-28|Process for the pyrometallurgical treatment of solids|
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