• 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:
    Process for the separation, by liquid-liquid extraction, of copper values from an acidic aqueous solution containing copper values, which process comprises contacting the acidic aqueous solution with an organic extractant comprising(a) a substantially water-immiscible organic solvent, (b) a hydroxy-oxime or a mixture of hydroxy-oximes capable of extracting copper values and (c) an .alpha.,.beta.-dioxime or a mixture of .alpha.,.beta.-dioximes.
    公开号:SU731906A3
    申请号:SU772553702
    申请日:1977-12-07
    公开日:1980-04-30
    发明作者:Коэндерс Петер；Кок Рикерт；Йоханнес Ван Дер Зеув Абрахам
    申请人:Шелл Интернэшнл Рисерч Маатсхаппий Б.В. (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to copper hydrometallurgy, in particular, to extracting copper from aqueous plants: extrusions. There is a known method for extracting copper acidic solutions by extracting a mixture of organic compounds containing oxy-oxime in an organic solvent 1. In this method, the extraction is carried out with a mixture of hydroxy oximes with pschyalkylphosphonitrile acids, with 99% of copper being extracted in one stage. The proposed method is characterized in that the extraction is carried out with a mixture of compounds of the class of oxy-oximes and ci, p-dioximes with a dioxime in the mixture of 0.01-10 mol.% Based on the hydroxy-oxime. This makes it possible to increase the speed of the process; p-dioximes have the general formula R-C-C-R 11 NOH NOH where R and R are represented by a hydrogen atom or alkyl, cycloalkyl, aryl, alkenyl or alkane groups. R represents preferably a alkyl-substituted phenyl group which may be linear and branched and preferably have 5-25 carbon atoms. Examples of such alkyl groups are pentin., Heptyl. nonilundecyl, tridecyl, tetradedyl, hexadecyl, octadecyl, eicoscle, docosyl, and their isomers. . When R represents an alkyl substituted phenyl group, R preferably represents a hydrogen atom or an alkyl group having less than 5 carbon atoms. The ratio of the volume of the organic extractant to the aqueous acidic solution is from 1: 3 to 3: 1. . Typically, g extraction is carried out at. 15-35 ° C. However, high or lower temperatures in the range of about 14 ° C and 35-75 ° C are not excluded. The extraction is carried out with acidic solutions at pH-0-3. The organic solvents used are halogenated solvents, such as chloroform, 1,2-7Dichloroethane, 1,2-dichloropropane, and di-2chloroethyl ether, as well as hydrocarbons, such as kerosene, toluene, xylene. The method is carried out as follows. The extraction was carried out in a square reactor with a length and width of 6.4 cm and a height of 8.9 cm, equipped with a stirrer consisting of a round working disk with a diameter of 3 cm, a thickness of 0.6 cm, and six axial grooves with a width of 0 and a length of 0 located below, 3 cm distance from each other. The initial aqueous solution contains copper sulfate and ferrous sulfate in the amount of 0.4 g of copper and 4.0 g of iron per J. l; The pH of the solution is 1.9. The original organic solution consists of a solvent and a mixture of dissolved 2-hydroxyphenyl oximes in combination with COI-dioxime or a mixture of l, dioximes. The organic solvent is a kerosene fraction having a boiling point of 193-245 ° and containing 20% by weight of aromatic carbons. As oximes, 2-hydroxy-5-nonyl-acetophenone-oxime {SME 529), 2-oxy-5-nonyl-benzophenone-oxime (O.X. 65) and benzyl-2-hydroxy-5-nonylphenyl ketone-oxime (ACONCA R-17) are used. The nonyl groups are a mixture of branched nonyl groups formed by alkylation with a phenol-propylene trimer. The concentration of oximes is 0.1 mol / l kerosene. As dioximes, 8,9-hexadecanedione-dioxime (A), a mixture of 2- / 4-C-alkyl-phenyl / -2-oximinoethanol-o-sims (B), a mixture are used. 1- (-alkyl-fenkl) -1 / 2-propanlion-dioximes (C), a mixture of 4-NONIL-1,2-dicyclohexanedioximes (D). 100 ml of the initial aqueous solution is loaded into the reactor, and then 100 ml of the original organic mixture is carefully poured on top of this aqueous solution. solution with a temperature of 23 ° C. Mixer 1 (set so that half of it is in the organic layer, and the other half - in the aqueous layer. Mixing is carried out at a speed of 2000 rpm. After 0.5 and 1 min, with continued mixing, samples are taken. After separation, layers The copper content in the organic layer is determined. After 20 min, the stirring is stopped, the phases are allowed to stand, the copper content in the organic phase and the extraction yield are determined. The results are shown in Tables 1 and 2. Table 1 tats of the combination of oxime with different dioximes. .Chease through CM copper in organic matter when ravi is reached Table 2: combination of the dioxim and oximes of the invention of copper from acidic mixtures of an organic containing hydroxyl solvent, in that.
    57319066
    in order to increase the speed of the process. Sources iiforiga (AI,
    the extraction is carried out with a mixture of compounds taken into account during the experiment {1 pise of the class of oxy-oximes and oi, p-dioxy ") in
    when the content in the mixture of dioxime is 0.01, USSR Copyright Certificate
    10 mol% based on hydroxy-oxime 9441313, Cl, C 22 b 15/08, 1972.
    权利要求:
    Claims (1)
    [1]
    Claim
    The method of extracting copper from acidic solutions by extraction with a mixture of organic compounds containing oxyxime in an organic solvent, characterized in that, in order to increase the speed of the process, the extraction is carried out with a mixture of compounds of the class of hydroxy oximes and -dioximes with a content of dioxime 0.0110 mol.% calculated on oxy-oxime.
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    同族专利:
    公开号 | 公开日
    JPS5371695A|1978-06-26|
    PL108918B1|1980-05-31|
    ES464827A1|1978-07-16|
    BE861592A|1978-06-07|
    PL202702A1|1978-06-19|
    YU40315B|1985-12-31|
    AU516884B2|1981-06-25|
    ZA777301B|1978-10-25|
    GB1580799A|1980-12-03|
    YU286977A|1983-01-21|
    AU3129677A|1979-06-14|
    CA1093537A|1981-01-13|
    ZM8477A1|1978-07-21|
    DE2754539A1|1978-06-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1793468C3|1968-09-21|1980-01-10|Bayer Ag, 5090 Leverkusen|Process for the preparation of α-oximinoalkyl ketones|
    GB1537828A|1975-03-26|1979-01-04|Shell Int Research|Extraction of copper values from aqueous solutions with hydroxy-oximes|US4339348A|1979-02-09|1982-07-13|Kennecott Corporation|Dioxime ion exchangers|
    US4248837A|1979-02-09|1981-02-03|Kennecott Copper Corporation|Solvent extraction of copper, nickel with methyl hexyl dioxime|
    US4301124A|1979-02-09|1981-11-17|Kennecott Corporation|Cobalt solvent extraction with dioxime ion exchangers|
    US4855114A|1988-09-30|1989-08-08|Sherex Chemical Company, Inc.|Dioxime kinetic enhancer for solvent extraction of gallium from basic aqueous solutions thereof|
    ES2291105B1|2004-04-08|2009-02-16|Cognis Corporation|PARALLEL CONFIGURATION OF INTERRUPTED SERIES FOR METAL EXTRACTION PLANTS WITH SOLVENTS.|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB51470/76A|GB1580799A|1976-12-09|1976-12-09|Process for the preparation of copper values from aqueous solutions|
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