Process for recovering lead from the active material of used bat

Details Process for recovering lead from the active material of used bat Process for recovering lead from the active material of used bat

1976-01-06

1977-06-21

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

C22B 1300

Patent

active

040309169

ABSTRACT:
Lead is recovered from the lead-containing sludge from used batteries by first heating the sludge at 100.degree. - 150.degree. C to drive off the water. The sludge is subsequently reacted at about 1,000.degree. C with carbon powder in a closed electric furnace. The relatively small volume of water-free waste gas produced leads to a marked saving in energy. Not only dust but also the SO.sub.2 can be removed simply from the waste gases.

REFERENCES:
patent: 3395010 (1968-07-01), Shoeld
patent: 3689253 (1972-09-01), Dorenfeld
patent: 3940265 (1976-02-01), Wilson

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