• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1464447 Recovering zinc, copper and cadmium; jarosites OUTOKUMPU OY 11 Feb 1974 [12 Feb 1973] 6077/74 Heading C1A Zinc calcine is subjected to "neutral leaching" with a deficiency of sulphuric acid to dissolve substantially all non-ferrous metal oxides and leave ferrites; the solution is separated and Zn, Cu and Cd are recovered therefrom; the residue is treated at atmospheric pressure and 80-105‹ C. with sufficient H 2 SO 4 or Fe 2 (SO 4 ) 3 solution, in the presence of K<SP>+</SP>, Na<SP>+</SP> or NH 4 <SP>+</SP>, to convert the Zn, Cu or Cd ferrite to the metal sulphate and a jarosite of formula where A is K, Na or NH 4 and is a positive number not exceeding one, the jarosite precipitating; the solution is separated and recycled to the neutral leaching stage.
    公开号:SU1241998A3
    申请号:SU813270849
    申请日:1981-04-15
    公开日:1986-06-30
    发明作者:Калеви Растас Юсси；Йоханнес Хуггари Тор-Лейф；Педер Фуглеберг Сигмунд
    申请人:Оутокумпу Ой (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to hydrometallurgy, in particular to methods for extracting zinc, copper and cadmium from calcine.
    The object of the invention is to disrupt the process.
    In the drawing, a schematic diagram of the method implementation has been invented.
    The inspected product is fed to Stage I neutral leaching, where zinc oxide is leached out with spent electrolyte. The residual ferritic product, free from a significant part of zinc oxide and containing the total amount of ferrite of the calcined product, is supplied to the stage IJ-conversion, which is also supplied with sulfuric acid in the amount required per day the total amount of ferrite. At this stage, the Sum-i marna reaction
    3MeO Fej Oj + 6H SO (,,, (- 2Л PejCSO / f) ;, (OlDg -i-3MeSO,) -,
    where Me is Zn, C, Cd; . A - Na, K, NH.,.
    A small excess of sulfuric acid is fed to maintain the concentration.
    Editor N. Shzydka
    Compiled by T.Sokolova
    Tehred I.Popovich Proofreader T.Kolb
    Order 3618/60 Circulation 567 Subscription of the USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
    . Production and printing company, Uzhgorod, ul.Proektna, 4
    d 5 0
    five
    0
    9982
    its solution in the range of 15-80 g / l, mainly 30-60 g / l.
    Note The initial ferrite-containing material after neutral leaching, having a composition, wt.%: Zn 20.8; Fe 38.0; NHj, 0.26; Si 0.47 :; Cd 0.19; Pb 3,5, in the amount of 1 kg of feed at the conversion stage, where 6.6 l of spent electrolyte was also injected. The temperature was maintained at about 95 C, and the concentration of sulfuric acid was 22-25 g / l. The process time was 24 hours, after which the solid and liquid media were separated.
    The amount of the solid phase after washing and drying was 1100 g with the following composition, wt%: Zn 3.6; Fe 30.5 ;; NH (, 2,3; Cu 0.08; Cd 0.02; - Pb 3.2.
    In a solution, the content of HjSOzj was 22 g / l, Fe — 5.4 g / l; NHf) - 5 g / l.
    The amount of zinc converted into solution was 81%; the amount of iron that has passed into the sediment is 88.5%.
    When containing zinc and iron in the cinder, respectively, 60.3 and 12.4%, the total recovery of zinc from the calcined product is 97.9%.
    权利要求:
    Claims (3)
    [1]
    '1. METHOD FOR REMOVING ZINC, COPPER AND CADMIUM FROM THE BURNED PRODUCT by neutral leaching, separating the ferrite-containing precipitate, treating the ferrite-containing precipitate with sulfuric acid at elevated temperature, introducing a complexing agent (sodium, potassium or ammopenium ions) and separating the jarosite precipitate, t and the fact that, in order to simplify the process, the amount of sulfuric acid is taken to be equivalent to the amount of ferrite and the complexing agent is introduced simultaneously with sulfuric acid.
    [2]
    2. The method of pop. ^ distinguishing with the fact that the treatment of ferrite-containing precipitate is carried out at 80 105 ° C.
    [3]
    3. The way popp. 1 and 2, wherein the amount of sulfuric acid is determined so that the final acid concentration is 15-80 g / l.
    SU "" 1241998
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    同族专利:
    公开号 | 公开日
    FI50097B|1975-09-01|
    NO135792B|1977-02-21|
    ZA74871B|1975-01-29|
    JPS501030A|1975-01-08|
    IE38836L|1974-08-12|
    FR2217427A1|1974-09-06|
    NL170024C|1982-09-16|
    NO135792C|1984-12-10|
    DE2406394A1|1974-08-29|
    FI50097C|1980-10-24|
    JPS5524495B2|1980-06-30|
    IE38836B1|1978-06-07|
    DD109406A5|1974-11-05|
    AU6542074A|1975-08-14|
    IT1008220B|1976-11-10|
    DE2406394B2|1975-09-04|
    NO740456L|1974-08-13|
    CA1217638A|1987-02-10|
    RO67585A|1982-09-09|
    US3959437A|1976-05-25|
    NL170024B|1982-04-16|
    FR2217427B1|1979-04-27|
    YU34774A|1982-02-28|
    PL90887B1|1977-02-28|
    GB1464447A|1977-02-16|
    ATA105774A|1977-10-15|
    NL7401830A|1974-08-14|
    BR7400989D0|1974-10-29|
    AT343923B|1978-06-26|
    BE810615A|1974-05-29|
    ES423107A1|1976-04-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US1834960A|1930-04-25|1931-12-08|Anaconda Copper Mining Co|Treating zinc concentrate and plant residue|
    US3493365A|1965-03-31|1970-02-03|Electrolyt Zinc Australasia|Treatment of zinc plant residue|
    BE673023A|1965-04-30|1900-01-01|
    CA938794A|1968-12-13|1973-12-25|Weston David|Hydrometallurgical treatment of nickel group ores|
    NO123248B|1969-10-02|1971-10-18|Norske Zinkkompani As|
    US3793429A|1972-02-18|1974-02-19|Kennecott Copper Corp|Nitric acid process for recovering metal values from sulfide ore materials containing iron sulfides|CA1086505A|1977-05-13|1980-09-30|Ashok D. Dalvi|Roast-leach copper recovery|
    FI54810C|1977-08-18|1979-03-12|Outokumpu Oy|FOERFARANDE FOER AOTERVINNING AV ZINK KOPPAR OCH KADMIUM VID LAKNING AV ZINKROSTGODS|
    FI773588A|1977-11-28|1979-05-29|Outokumpu Oy|HYDROMETALLURGICAL PROCESS FOR BEHANDLING AV OXIDER OCH FERRITER INNEHAOLLANDE JAERN OCH ANDRA METALLER|
    EP0010365A1|1978-09-25|1980-04-30|Texasgulf Inc.|Treatment of zinc plant leach residues for recovery of the contained metal values|
    US4225342A|1979-09-21|1980-09-30|Texasgulf Inc.|Treatment of zinc plant leach residues for recovery of the contained metal values|
    AT366717B|1980-02-06|1982-05-10|Voest Alpine Ag|METHOD FOR HYDROMETALLURGIC WORKING UP OF RAW MATERIALS CONTAINING ZINC|
    CA1150062A|1980-06-10|1983-07-19|Robert W. Stanley|Hydrometallurgical treatment of copper-bearinghematite residue|
    FI65810C|1980-09-30|1984-07-10|Outokumpu Oy|FOERFARANDE FOER BEHANDLING AV RAOMATERIAL INNEHAOLLANDE OXID OCH FERRIT AV ZINK KOPPAR OCH KADMIUM|
    MX157259A|1980-09-30|1988-11-09|Outokumpu Oy|IMPROVED HYDROMETALLURGICAL METHOD FOR TREATING A RAW MATERIAL CONTAINING OXIDE AND FERRITE OF ZINC, COPPER AND CADMIUM|
    CA1166022A|1981-05-22|1984-04-24|Donald R. Weir|Recovery of zinc from zinc containing sulphidicmaterial|
    JPS6111861U|1984-06-04|1986-01-23|
    US5078786A|1986-11-26|1992-01-07|Resource Technology Associates|Process for recovering metal values from jarosite solids|
    FI88516C|1990-02-16|1993-05-25|Outokumpu Oy|Hydrometallurgical process for the treatment of zinc sulphide|
    FI93660C|1993-06-24|1995-05-10|Outokumpu Eng Contract|The method dissolves material containing zinc oxide and silicate|
    FI100806B|1996-08-12|1998-02-27|Outokumpu Base Metals Oy|Procedure for dissolving zinc-like under atmospheric conditions|
    FI116071B|2003-02-26|2005-09-15|Outokumpu Oy|Method for recovering zinc by countercurrent leaching|
    CA2453005A1|2003-12-17|2005-06-17|Fermag Inc.|Hydrometallurgical process for separating steel mill dust using an arc furnace and pigments obtained by the process|
    CA2611197A1|2005-06-17|2006-12-21|Ferrinov Inc.|Anti-corrosion pigments coming from dust of an electic arc furnace and containing sacrificial calcium|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FI41073A|FI50097C|1973-02-12|1973-02-12|HYDROMETALLURGICAL FOERFARANDE FOER AOTERVINNING AV ZINK KOPPAR OCH CADMIUM FRAON DERAS FERRITER|
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