Recovery of copper from chalcopyrite utilizing copper sulfate le

Details Recovery of copper from chalcopyrite utilizing copper sulfate le Recovery of copper from chalcopyrite utilizing copper sulfate le

1974-07-24

1976-05-18

Ozaki, G.

Chemistry: electrical and wave energy

Processes and products

Electrostatic field or electrical discharge

204107, 204108, 423 27, 423 36, 423 37, 423 32, 423 46, 75101R, 75115, 75117, 75121, C22B 300, C22B 1508

Patent

active

039576027

ABSTRACT:
Copper is recovered from chalcopyrite by means of a pollution-free hydrometallurgical process which entails leaching and converting the chalcopyrite with copper sulfate in order to produce an insoluble copper sulfide, a soluble iron sulfate and sulfuric acid. A secondary leach is then conducted in order to react the copper sulfide with oxygen in the presence of a jarosite-forming cation to produce a soluble copper sulfate and an insoluble iron bearing jarosite. This copper sulfate is separated from the jarosite and sent to a copper recovery process and/or recycled. Alternatively, the copper sulfide from the initial leach may be separated from the iron sulfate solution immediately after the initial leach, and this copper sulfide can be treated with other processes to produce elemental copper and sulfur.

REFERENCES:
patent: 3798304 (1974-03-01), Weston
patent: 3816105 (1974-06-01), McKay et al.
patent: 3891522 (1974-01-01), McKay et al.

Affiliated with

Also associated with

Rating

Recovery of copper from chalcopyrite utilizing copper sulfate le 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 copper from chalcopyrite utilizing copper sulfate le, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Recovery of copper from chalcopyrite utilizing copper sulfate le will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2233850