• 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:

    公开号:SU747412A3
    申请号:SU772438251
    申请日:1977-01-14
    公开日:1980-07-23
    发明作者:Соен Жозеф；Морель Пьер；Аджемян Алэн
    申请人:Алюминиюм Пешинэ (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to metallurgy.
    There is a method of processing aluminosilicate materials containing impurities of compounds of titanium, iron, potassium, alumina, including its grinding, baking with a recycle solution containing 49-59% free sulfuric acid at 135-140 ° C, separating the solid residue from the resulting sulfate solution, treating the latter with a concentrated hydrochloric acid solution with the addition of hydrogen chloride to precipitate aluminum chloride hexahydrate in the precipitate, washing and calcining it.
    This method is not effective enough in the processing of materials with a high content of titanium and iron.
    The purpose of the invention is to increase the degree of purification from impurities during the processing of materials with a high content of titanium and iron.
    The goal is achieved by leaching with the addition of 6-8% ammonium sulphate, and the crystals pre-separated from the sulphate solution and subjected to washing are subjected to processing.
    When leaching, aluminum sulphate solutions with a concentration of 150 g / l are obtained, while by the known - 70 g / l. This method allows to obtain alumina of metallurgical purity containing less than 0.03%, less than 0.5%.
    10 and I less than 0,003 Ti.
    Example. 3675 kg of kaolin composition containing, wt%: AegO, 36.7; SiOj, 44.9; Fe2.05 0.94; TiOj: 1.83; V.0 0.02; 0,06-, CaO
    16 0.56; other, 1.09, loss on roasting - 13.9%, with a moisture content of 20% is subjected to grinding and introduced into 10,000 kg of a solution of the following composition, wt.%:
    t
    Free chamois
    acid53,4
    Ammonium sulfate 7.0
    Sulfates various
    Metals5.0
    25
    Another 5556 kg of the same solution is added to the suspension obtained and kept at 130 ° C for three hours and then filtered. Filtered solid residue
    30 is subjected to washing sulfur-containing
    权利要求:
    Claims (1)
    [1]
    Claim
    A method of processing aluminosilicate materials containing impurities of titanium, iron, potassium compounds into alumina, including grinding it, leaching with a recirculating solution containing 49-59% free sulfuric acid, at elevated temperature, separating the solid residue from the obtained sulfate solution, processing the sulfate leaching product concentrated solution of hydrochloric acid with the addition of hydrogen chloride to precipitate aluminum chloride hexahydrate, washing and calcining it, characterized in that, in order to increase the degree of purification from impurities in the processing of materials with a high content of titanium and iron, leaching is carried out with the addition of 6-8% ammonium sulfate, and crystals subjected to preliminary separation from the sulfate solution and subjected to washing are subjected to treatment.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1165238A3|1985-06-30|Method of hydrometallurgical processing of raw material containing non-ferrous metals and iron
    SU747412A3|1980-07-23|Method of processing alumosilicate materials containing impurities of titanium, ferrum and potassium compounds to alumina
    US2354133A|1944-07-18|Process for producing alumina from clay
    US4724128A|1988-02-09|Method for purifying molybdenum
    KR19980700440A|1998-03-30|METHOD FOR PRODUCING IRON FEEDSTOCK
    CA1076774A|1980-05-06|Process of producing sulfuric acid from waste acid and iron sulfate
    GB1524552A|1978-09-13|Process and apparatus for the purification of wetprocessed phosphoric acid
    US2271524A|1942-02-03|Treatment of waste pickling liqyuirs
    US4044115A|1977-08-23|Production of alumina monohydrate from aluminum nitrate solutions
    EP0199104A3|1987-10-28|The production of potassium sulphate
    US4255399A|1981-03-10|Process for the recovery of magnesium oxide of high purity
    US4133866A|1979-01-09|Process for the selective separation of the bound sodium content of red mud
    SU1465714A1|1989-03-15|Method of producing hexatitanium fluorides of alkali metals
    SU393341A1|1973-08-10|METHOD OF PROCESSING OF MANGANESE RAW
    US4201750A|1980-05-06|Processing of breunnerite to recover magnesium compounds
    RU2013373C1|1994-05-30|Process for treating alunite ore to obtain alumopotassium alum and aluminium sulfate
    US4029745A|1977-06-14|Process for reducing molten ammonium sulfates containing metallic impurities to ammonia and sulfur dioxide
    KR800001413B1|1980-12-05|Process for the preparation of purity alumina
    RU2085492C1|1997-07-27|Method of processing alunite or alkaliness aluminosilicate ores to aluminium-potassium alum and aluminium chloride
    SU812722A1|1981-03-15|Method of purifying sphene concentrates from phosphorus
    SU931717A1|1982-05-30|Method for processing bauxite
    GB1203950A|1970-09-03|Process for the separation of useful compounds from waste formed from the production of alumina by the bayer process
    SU802182A1|1981-02-07|Method of producing sodium fluoride
    US4349515A|1982-09-14|Tungsten production from raw materials containing phosphorus impurities
    SU1186569A1|1985-10-23|Method of processing bauxite
    同族专利:
    公开号 | 公开日
    EG13209A|1980-12-31|
    CS207377B2|1981-07-31|
    AU505965B2|1979-12-06|
    GB1569033A|1980-06-11|
    DE2701710A1|1977-07-28|
    DE2701710B2|1981-07-30|
    AR220674A1|1980-11-28|
    AT354980B|1980-02-11|
    HU175517B|1980-08-28|
    IL51265D0|1977-03-31|
    IT1091558B|1985-07-06|
    JPS5288599A|1977-07-25|
    PL104344B1|1979-08-31|
    NO770162L|1977-07-21|
    DD127918A5|1977-10-19|
    CH599902A5|1978-06-15|
    ES455122A1|1977-12-16|
    NO149626C|1984-05-23|
    MX144469A|1981-10-19|
    OA05532A|1981-04-30|
    IL51265A|1980-05-30|
    CA1103462A|1981-06-23|
    NL7700592A|1977-07-22|
    ZA77292B|1978-03-29|
    BE850569A|1977-07-20|
    FR2338898A1|1977-08-19|
    NO149626B|1984-02-13|
    JPS569450B2|1981-03-02|
    DK16877A|1977-07-21|
    SE423707B|1982-05-24|
    SE7700441L|1977-07-21|
    ATA28577A|1979-07-15|
    AU2140677A|1978-07-27|
    FR2338898B1|1979-07-20|
    RO78297A|1982-04-12|
    NZ183097A|1979-04-26|
    DE2701710C3|1982-05-06|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2426019B1|1978-05-18|1981-11-27|Pechiney Aluminium|
    NO790460L|1979-02-13|1980-08-14|Elkem Spigerverket As|PREPARATION OF A PURE ALUMINUM OXIDE FROM SOLUTIONS CONTAINING DISSOLVED ALUMINUM AND IRON IONS|
    NO147516C|1979-02-13|1983-04-27|Elkem Spigerverket As|PROCEDURE FOR THE DEPOSIT OF A PURE ALUMINUM CHLORIDE FROM SOLUTIONS CONTAINING ALUMINUM AND MAGNESIUM IONS.|
    CA2321000C|1998-12-17|2005-05-24|Nippon Light Metal Co., Ltd.|Method of producing highly pure aluminum primary base metal|
    CN102849765B|2012-04-10|2014-05-21|沈阳金博新技术产业有限公司|Method for preparing alumina from low-grade bauxite by acid leaching|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR7602061A|FR2338898B1|1976-01-20|1976-01-20|
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