Method of processing residues from the hydrometallurgical produc

Details Method of processing residues from the hydrometallurgical produc Method of processing residues from the hydrometallurgical produc

1987-09-28

1988-12-06

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

75109, 75121, 423140, C25C 114

Patent

active

047894466

ABSTRACT:
In conjunction with an electrolytic production of zinc, the residues are processed so that the residue is leached with cell acid at a temperature from 50.degree. to 100.degree. C. in such a manner that a concentration of free acid from 10 to 100 g/l is obtained at the end of the leaching. The undissolved matter is separated from the suspension, the separated matter is supplied to the acid leaching step performed in the electrolytic production of zinc, and fine-grained metallic iron is added to the solution from which the undissolved matter has been removed so that copper is precipitated. The precipitated copper is separated and the liquid phase from which the precipitated copper has been separated is supplied to one of the stages which precede the precipitation of iron in the electrolytic production of zinc.

REFERENCES:
patent: 3926743 (1976-08-01), Landucci et al.
patent: 4637832 (1987-01-01), Cammi et al.
"Encyclopedia of Chem. Technology", Kirk Othmer, 3rd Ed., vol. 24, pp. 817-823.

Affiliated with

Also associated with

Rating

Method of processing residues from the hydrometallurgical produc does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of processing residues from the hydrometallurgical produc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of processing residues from the hydrometallurgical produc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1492618