Process for the recovery of lead from spent batteries

Details Process for the recovery of lead from spent batteries Process for the recovery of lead from spent batteries

1996-07-24

1998-10-27

Andrews, Melvyn

Specialized metallurgical processes, compositions for use therei

Processes

Producing or treating free metal

205369, 423621, 429 49, C25C 334

Patent

active

058273476

ABSTRACT:
A process for the recovery of lead from spent battery paste and lead containing materials. The process includes the steps of calcination of a spent paste treated with an alkali carbonate or hydroxide or any mixture thereof, and elemental sulphur at a temperature of up to 600.degree. C., followed by washing with water. The calcined and washed paste is dissolved in an alkali molten electrolyte, and lead is electrowinned from the alkali molten electrolyte. The spent electrolyte is reused in the process.

REFERENCES:
patent: 4058396 (1977-11-01), Birk

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