Base metal recovery from a tailings dump by bacterial oxidation

Details Base metal recovery from a tailings dump by bacterial oxidation Base metal recovery from a tailings dump by bacterial oxidation

2006-03-28

2006-03-28

Bos, Steven (Department: 1754)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group ib metal

C423S024000, C423S026000, C423SDIG017, C075S710000, C075S711000, C075S714000, C435S168000, C435S262000

Reexamination Certificate

active

07018593

ABSTRACT:
A method of recovering base metal from a tailings dump which includes the steps of: aerating a surface layer of the dump; adjusting the pH and the moisture content of the surface layer to provide conditions favourable for bacterial oxidation of sulphide minerals; allowing bacterial oxidation to take place for a controlled period, after the controlled period removing the oxidized surface layer and adding water thereto for form a slurry; separating the slurry into solids and a solution; and recovering base metal from the solution.

REFERENCES:
patent: 5340380 (1994-08-01), Virnig
patent: 5919674 (1999-07-01), Tunley
patent: 0 522 978 (1993-01-01), None
Hsu, et al., Bacterial leaching of zinc and copper from mining wastes, Feb. 1995, Hydrometallurgy, 37, pp. 169-179.
Eric Livesey-Goldblatt , “Bacterial Leaching of Gold, Uranium, Pyrite Bearing Compacted Mine Tailing Slimes,” Elsevier (Process Metallurgy 4), (1986).

Affiliated with

Also associated with

Rating

Base metal recovery from a tailings dump by bacterial oxidation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Base metal recovery from a tailings dump by bacterial oxidation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Base metal recovery from a tailings dump by bacterial oxidation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3581505