Chemistry: electrical and wave energy – Processes and products – Electrostatic field or electrical discharge
Patent
1976-09-17
1978-07-11
Hearn, Brian
Chemistry: electrical and wave energy
Processes and products
Electrostatic field or electrical discharge
75119, 423 24, 423 41, 423150, C25C 112
Patent
active
041000439
ABSTRACT:
A method is provided for leaching comminuted nickeliferous sulfide matte containing by weight about 20 to 75% nickel, about 5 to 50% copper, non-stoichiometric sulfur in the range of over 4 to about 24%, over 0.5 to about 20% iron, the sum of the nickel, copper and sulfur contents being at least about 80% of the matte composition, with the balance gangue or slag and incidental impurities.
Nickel is selectively leached from the comminuted matte using sulfuric acid or spent copper electrolyte solution at substantially atmospheric pressure while vigorously aerating the solution, wherein the pH is raised sufficiently to produce a nickel solution with an iron content of less than about 10 ppm and a copper content of over 5 ppm, the copper being thereafter selectively removed from the nickel solution by passing the solution through an ion-exchange resin selective to the absorption of copper.
REFERENCES:
patent: 2875162 (1959-02-01), Morris
patent: 3715339 (1973-02-01), Rainer
patent: 3914374 (1975-10-01), Koehler
patent: 3962051 (1976-06-01), Symens et al.
Duolite CS-346 Tech. Sheet, Jun. 1, 1972, Diamond Shamrock Corp.
"Amberlite XE-318", Rohm and Haas, 1975.
Habashi, Extractive Metallurgy, Gordon & Breach, N.Y., 1970, (vol. II) pp. 175, 176, 184, 317, 318.
Mantell, Industrial Electrochemistry, (III Ed.), McGraw-Hill, Inc., 1950, pp. 270, 272, 280-282, 306, 307.
Hzkovitch et al., "Copper Removal From Thompson Nickel Anolyte by Solvent Extraction", C.I.M. Bulletin, Jan. 1974, pp. 92-96.
Carlberg John R.
Chou Eddie C.
Laferty John M.
Queneau Paul B.
Amax Inc.
Ciomek Michael A.
Hearn Brian
Kalil Eugene J.
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