Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Group ib metal
Patent
1999-04-21
2000-05-09
Bos, Steven
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Group ib metal
204567, 205580, C01G 300, B01D 1100, C22B 1500, C25C 100
Patent
active
060600292
ABSTRACT:
Improvement in the process of extracting metals, particularly copper, from aqueous ammoniacal solutions with beta-diketone extractants dissolved in a water immiscible hydrocarbon diluent, such as a kerosene, in which the improvement comprises application of a voltage potential across the interface of the aqueous and organic layers of an extraction circuit with an electrostatic coalescer, and maintaining the voltage potential until the layers have been separated, to control entrainment of the aqueous layer into the organic layer, thereby significantly reducing metal production cost and providing improved metal quality by minimizing ammonia entrapment and carry over to the aqueous stripping solution from which the metal is recovered, typically by electrowinning of the aqueous acid strip solution.
REFERENCES:
patent: 4039404 (1977-08-01), Richards et al.
patent: 4161439 (1979-07-01), Warren et al.
patent: 4175012 (1979-11-01), MacKay et al.
patent: 4283390 (1981-08-01), Davies
patent: 4290882 (1981-09-01), Dempsey
Fisher G. Timothy
Kordosky Gary A.
Virnig Michael J.
Bos Steven
Drach John E.
Henkel Corporation
Millson Jr. Henry E.
LandOfFree
Process for extraction of metals from aqueous ammoniacal solutio does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for extraction of metals from aqueous ammoniacal solutio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for extraction of metals from aqueous ammoniacal solutio will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1061710