Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1979-08-30
1981-03-10
Hearn, Brian E.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
423100, 423139, C01G 4900, C01G 5100, C01G 5300, C01G 300
Patent
active
042553954
ABSTRACT:
Improved solvent-extractants for the selective recovery of metal values from acidic aqueous media comprise solutions of 5-alkylbenzotriazoles in water-immiscible organic solvents. Extraction efficiency is enhanced by addition to the solvent-extractant of alkyl aromatic sulfonic acids, alkyl phosphoric acids or carboxylic acids. Especially important applications for the improved solvent-extractants are in the recovery of copper (II) from cobalt (II), copper (II) from nickel (II), copper (II) from iron (III), copper (II) from zinc (II), nickel (II) from cobalt (II), nickel (II) from zinc (II), nickel (II) from iron (III), iron (III) from magnesium (II), and cobalt (II) from zinc (II).
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Morrison et al Solvent Extraction in Analytical Chemistry, John Wiley and Sons, Inc., N.Y. (1957) pp. 56, 57, 110.
Habashi, F., Principles of Extractive Metallurgy, vol. 2, Gordon and Breach, N.Y. (1970) pp. 369, 385.
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Curtis "Quantitative Determination and Separation of Copper with Benzotriazole" Industrial and Engineering Chemistry, Analytical Edition (1941) pp. 349-351.
Gallacher Lawrence V.
Rydzik Rachelle M.
Hearn Brian E.
King Industries, Inc.
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