Treatment of lead sulphide

Details Treatment of lead sulphide Treatment of lead sulphide

1975-05-20

1977-01-25

Andrews, M. J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

423 95, 423512R, 423559, C22B 1300

Patent

active

040049213

ABSTRACT:
A process for the treatment of lead sulphide with an aqueous solution of sulphur dioxide at a temperature of at least 20.degree. C and in the absence of oxygen is disclosed. In a preferred embodiment the lead sulphate and/or lead sulphite so formed is heated with lead sulphide at a temperature of 700.degree. to 1200.degree. C in the absence of oxygen. Metallic lead is obtained. In the preferred embodiment the lead sulphide may contain zinc sulphide whereby both metallic lead and metallic zinc may be obtained.

REFERENCES:
patent: 1062120 (1913-05-01), McMahon et al.
patent: 1262295 (1918-04-01), Young
patent: 3281237 (1966-10-01), Meissner et al.

Affiliated with

Also associated with

Rating

Treatment of lead sulphide does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Treatment of lead sulphide, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Treatment of lead sulphide will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1476908