Separation of Cobalt, Nickel and Copper from Ammoniacal Alkaline Leach Liquor of Cobalt Crusts by Solvent Extraction.
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چکیده
منابع مشابه
Separation of Copper from Chalcopyrite – Ammoniacal Leach Liquor Containing Copper, Zinc, and Magnesium by Supported Liquid Membrane
A low grade chalcopyrite ore was leached with H2O2/(NH4)2SO4 and the leach liquor contained 42.96 mol m copper, 3.52 mol m zinc and 11.23 mol m magnesium. From this leach liquor separation of copper was carried out with supported liquid membrane using LIX84I as mobile carrier. Celgard 2400, a microporous polypropylene film was used as the solid support for the liquid membrane. The effect of pH ...
متن کاملSeparation of cobalt and nickel by solvent extraction with two mutually immiscible ionic liquids.
The proof-of-principle for the separation of metals by solvent extraction using two mutually immiscible ionic liquids is given. Cobalt was extracted from the ionic liquid 1-ethyl-3-methylimidazolium chloride to the ionic liquid trihexyl(tetradecyl)phosphonium bis(2,4,4-trimethylpentyl)phosphinate. A distribution ratio of 44 was obtained. Cobalt could be selectively separated from nickel, with a...
متن کاملSeparation of nickel and cobalt from calcium, magnesium and manganese by solvent extraction with synergistic mixtures of carboxylic acids
The potential use of synergistic mixtures of reagents for the solvent extraction of nickel (and cobalt) from lateritic leach liquors was pointed out in the early 1980s by Grinstead, who used dinonylnaphthalene sulphonic acid in conjunction with some 2-pyridyl compounds for the recovery of these metals from slightly acidic solutions1,2. Shortly thereafter, studies at Mintek revealed marked syner...
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چکیده هدف از این کار بررسی الکترواکسیداسیون کتکول و مشتقات آن در حضور 4-فنیل سمی کاربامازید بوده است اکسیداسیون کتکولها ترکیبات نا پایدار کینونها را تولید می کنند که این ترکیبات می تواند در واکنش مایکل بعنوان پذیرنده نوکلئوفیل عمل نمایند. در ادامه اکسایش کتکولهای (a-c1) را درحضور 4-فنیل سمی کاربامازید در محلول آب/استونیتریل (90/10)بوسیله ولتامتری چرخه ای و کولن متری در پتانسیل ثابت مورد بررسی ...
15 صفحه اولSpectrophotometric simultaneous determination of nickel, cobalt and copper by orthogonal signal correction–partial least squares
A method for the simultaneous spectrophotometric determination of nickel, cobalt and copper based on theformation of their complexes with 2-(2-Thiazolylazo)-p-Cresol (TAC) in micellar media of Triton X-100 isproposed. The absorbance spectra were recorded in the range of 500 to 800 nm. The linear concentrationrange for nickel, cobalt and copper in solution calibration sets were 0.05–1.80, 0.10–6...
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ژورنال
عنوان ژورنال: Shigen-to-Sozai
سال: 1993
ISSN: 0916-1740,1880-6244
DOI: 10.2473/shigentosozai.109.373