Document Type and Number:
Japanese Patent JPS6227138
Kind Code:
B2
Abstract:
There is disclosed a continuous direct process of lead smelting comprising a step of blowing a compounded feedstock by means of an oxygen-enriched air or oxygen into a smelting zone containing a molten lead bath with a blast pressure by which the compounded feedstock can penetrate into the molten lead bath, at a temperature at which the oxidation reaction of the lead sulfide concentrate can be sustained, said feedstock containing particulate or powdered lead sulfide concentrate and a flux and further containing a fuel when oxygen-enriched air is used, whereby the lead sulfide is oxidized to form crude lead and slag; and a step of transferring the molten crude lead and the slag formed in said first step to a reduction zone, where the slag is contacted with a reducing agent so as to reduce the lead substances in the slag and return the reduced lead to the crude lead.
Inventors:
KAWAKITA SAJU
SHIBAZAKI TAKEYOSHI
MOCHIDA HIROMI
SHIBAZAKI TAKEYOSHI
MOCHIDA HIROMI
Application Number:
JP7628683A
Publication Date:
June 12, 1987
Filing Date:
May 02, 1983
Export Citation:
Assignee:
MITSUBISHI METAL CORP
International Classes:
C22B7/04; C22B13/02