• 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:
    The invention concerns a process for the bacterial oxidation of ferrous salt solutions in the presence of oxygen and at an acid pH, She oxidation is carried out with the bacterial oxidising agent coated on the passage surfaces of a structure which is honeycombed with passages. The process conveniently is carried out continuously. The ferric salt obtained may be used for leaching a mineral, eg an ore or coal.
    公开号:SU925245A3
    申请号:SU772532306
    申请日:1977-10-17
    公开日:1982-04-30
    发明作者:Лайвси-Голдблатт Эрик
    申请人:Дженерал Майнинг Энд Файнанс Корпорейшн Лимитед (Инофирма)；
    IPC主号:
    专利说明:

    I
    The invention relates to methods for producing iron sulfate sulfate and may find its application in the process of upgrading metatashes from ores.
    A method of producing iron sulfate is known by oxidizing iron oxide at 4OO-455C in the presence of a stoichiometric amount or sulfuric acid 1.
    The main disadvantage of this method is the high temperature of the oxidation process, which creates high energy costs for the process.
    Closest to the proposed, to the technical essence and the achieved result, a method of producing iron oxide sulfate by oxidizing iron sulfate (P) in the presence of oxygen and sulfuric acid bacteria Tiobaclllas ferrooxidatis and sulfuric acid at a pH of 0.82.5 5.
    However, the known method is characterized by an insufficiently high specific speed of 5 g / m / h.
    The purpose of the invention is to intensify the process by increasing the oxidation rate.
    The goal is achieved by
    5 that in the method of producing iron oxide sulfate by oxidizing iron sulfate (I) in the presence of oxygen bacteria Tiobaciiius ferrooxidans and sulfuric acid at a pH of 0.8-2.5,
    10, oxidation is carried out in a reactor with a nozzle, which is shaped as a honeycomb structure with channel sizes, did not allow the passage of the reaction mixture.
    The proposed method allows to increase the specific rate of bacterial oxidation from 5.5 to 7.46, i.e., by 4%.
    PRI im p A cylindrical container with a height of 3 m and a diameter of 1.2 m was filled with a solution of ferrous sulphate of iron (VI). The volume of the solution is 34OO l. B contained in this tank liquid. immersed in a plastic honeycomb and a floc of size 1OOOx1800
    25 600 mm. The specific surface of the horse,
    is 93 m / m. At the bottom of the tank, aeration is provided with an existing aerator with a nominal air supply of 5 m / h. After two weeks, during which bacterial activity with the use of Tiobacijlus ferrooxidans increased and reached a maximum, the following indicators were recorded;
     Temperature, C32
    Consumption of raw materials, l / g72
    Raw material, g / l:
    iron (P) 9,8
    iron (NO1,3
    Sulfuric acid, g / l9, O
    Product, g / l:
    iron (I) 0,25
    iron (w) .10,5
    Sulfuric acid, g / p 0,88. pH of solution is 1.5
    Oxidation rate, g / h688
    The surface area, Specific velocity, 6.88 distance between the channel walls in the honeycomb head is 4 mm.
    The resulting solution of iron and bacteria is added to the ruhr, containing useful mineral and pyrites. The ore iodine is sulfuric acid to destroy sufficient alkalinity.
    The resulting ferrous sulfate solution can be used as a fluid for leaching minerals and for extracting a number of metals from ores, such as uranium, copper, gold, lead, zinc, nickel, cobalt, molybdenum, mouse, antimony, cadmium, mercury and others. metals.
    权利要求:
    Claims (2)
    [1]
    1. Japan Patent N ° 4O532,
    cl. 15 С 3 (СО1 В), publ. 1К. 1971.
    [2]
    2. USSR author's certificate number 518465, cl. C 01 Q 49/14, 1974 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
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    US3711275A|1973-01-16|Method for the production of liquid pig iron or steel directly of dressed ore
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    DE2747586C2|1984-02-02|Process and device for the continuous extraction of low-iron raw tin from iron-rich tin ore concentrates
    FR2425478A1|1979-12-07|PROCESS FOR REDUCING CUPRIFIC MATERIALS
    Liu et al.1988|Oxygen transfer to Thiobacillus cultures.
    US2332647A|1943-10-26|Production of iron sulphate
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    同族专利:
    公开号 | 公开日
    JPS5350089A|1978-05-08|
    SE7710810L|1978-04-19|
    ZM6177A1|1979-05-21|
    FR2367704B1|1982-07-09|
    BR7706765A|1978-09-12|
    AU512731B2|1980-10-23|
    ES462571A1|1978-11-16|
    SE443557B|1986-03-03|
    OA05784A|1981-05-31|
    DE2742199A1|1978-04-27|
    AU2786977A|1979-03-08|
    GB1542600A|1979-03-21|
    PH13475A|1980-05-19|
    PL201584A1|1978-05-08|
    MX4518E|1982-06-02|
    CA1089382A|1980-11-11|
    FR2367704A1|1978-05-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3855120A|1971-07-09|1974-12-17|P Garbo|Oxygenation of waste water|
    FR2278631B1|1974-06-28|1977-05-06|Gen Mining & Finance Corp|AU565144B2|1982-12-17|1987-09-03|Cra Services Limited|Process|
    AU608333B2|1984-08-24|1991-03-28|WMCPty Ltd|Selective extraction of uranium|
    AU571105B2|1984-08-24|1988-03-31|WMCPty Ltd|Selective extraction of uranium|
    ZA853701B|1984-11-26|1986-05-28|Pm Mineral Leaching Tech Inc|Bioleaching process|
    GB8526743D0|1985-10-30|1985-12-04|Shell Int Research|Sour gas treatment process|
    EP0280750B1|1987-03-03|1992-01-29|Dowa Mining Co., Ltd.|Method and apparatus for treating h2s containing gases|
    US4931262A|1987-03-03|1990-06-05|Dowa Mining Co., Ltd.|Method of treating H2 S containing gases|
    DE3735538A1|1987-10-21|1989-05-03|Metallgesellschaft Ag|PROCESS FOR THE PRODUCTION OF PHOSPHATUEBERZUEGEN|
    US6482373B1|1991-04-12|2002-11-19|Newmont Usa Limited|Process for treating ore having recoverable metal values including arsenic containing components|
    US5332559A|1991-07-10|1994-07-26|Newmont Gold Co.|Biooxidation process for recovery of metal values from sulphur-containing ore materials|
    US6696283B1|1991-07-10|2004-02-24|Newmont Usa Limited|Particulate of sulfur-containing ore materials and heap made therefrom|
    US6383458B1|1991-07-10|2002-05-07|Newmont Mining Corporation|Biooxidation process for recovery of metal values from sulfur-containing ore materials|
    US5827701A|1996-05-21|1998-10-27|Lueking; Donald R.|Method for the generation and use of ferric ions|
    CA2658085A1|2006-08-02|2008-02-07|H.C. Starck Gmbh|Recovery of molybdenum from molybdenum bearing sulfide materials by bioleaching in the presence of iron|
    RU2481410C1|2012-01-19|2013-05-10|Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет"|Method of copper-molybdenum ores separation|
    RU2477328C1|2012-01-23|2013-03-10|Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Национальный исследовательский технологический университет "МИСиС"|Processing method of low-grade molybdenite concentrates|
    CN112661197B|2020-12-24|2021-12-07|成都湛蓝未来环保科技有限公司|Device and method for preparing polymeric ferric sulfate through microbial catalysis|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ZA00766191A|ZA766191B|1976-10-18|1976-10-18|The oxidation of ferrous salt solutions|
    ZA77860|1977-02-14|
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