Method of recovering zinc

Details Method of recovering zinc Method of recovering zinc

1993-05-10

1994-10-25

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

75655, C22B 400

Patent

active

053585445

ABSTRACT:
Zinc is recovered from zinc sulphide material by introducing such material at a feed station into a molten copper sulphide matte which is circulated in a closed loop path through said feed station, a zinc recovery station and an oxidizing station. The matte is heated electrically directly by resistive heating. Oxygen in the absence of other gases is introduced at the oxidizing station. Sulphur dioxide is removed in a sulphuric acid plant. The method is operated to keep the activity of copper in the total matte at less than unit activity. Virtually zero gas emission is possible.

REFERENCES:
patent: 4334918 (1982-06-01), Warner
patent: 4741770 (1988-05-01), Andrews
patent: 5131944 (1992-07-01), Malmstrom
"Towards Polymetallic Sulfide Smelting", N. A. Warner, International Symposium on Complex Sulfides, TMS-AIME, San Diego, Calif., Nov. 10-13, 1985.

Affiliated with

Also associated with

Rating

Method of recovering zinc 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 recovering zinc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of recovering zinc will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-132252