Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1975-04-17
1977-05-10
Vertiz, O. R.
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
75103, 423 32, 423109, 423150, B03D 100, C01G 300, C01G 500, C22B 1100
Patent
active
040228665
ABSTRACT:
Copper, zinc and nickel are recovered from sulfide concentrates prepared from ores of one or more such metals by subjecting such concentrate to a leaching operation which comprises slurrying the concentrate in an aqueous solution containing ammonium sulfate and free ammonia and vigorously agitating the slurry at 50 to 80.degree. C. and below 10 psig. in the presence of free oxygen while vigorously recirculating said oxygen from above the surface of the slurry to a substantial depth below such surface. The resulting pregnant leach solution contains copper, zinc, and/or nickel in dissolved form complexed with ammonia and such solution is treated to recover the dissolved metal. The undissolved sulfidic residue from the leaching operation is subjected to a secondary flotation operation to produce a sulfide concentrate containing the metal values not dissolved in the leaching operation, and such concentrate is treated to recover such values, as by smelting or by releaching.
REFERENCES:
patent: 2695843 (1954-11-01), Schaufelberger
patent: 2822263 (1958-02-01), Forward et al.
patent: 3309029 (1967-03-01), Frame
patent: 3386572 (1968-06-01), Cadwell
patent: 3658512 (1972-04-01), Blytas
patent: 3701421 (1972-10-01), Maxwell
patent: 3798026 (1974-03-01), Milmer et al.
patent: 3853981 (1974-12-01), Hadzeriga
CIM Bulletin-Feb. '74-Kuhn, Akbiter, & Kling-"Anaconda's Akbiter Process for Copper" pp. 62-73.
Arbiter Nathaniel
Kuhn Martin C.
The Anaconda Company
Vertiz O. R.
Wheelock Eugene T.
LandOfFree
Recovery of metals does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Recovery of metals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of metals will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1983527