Short rotary furnace and its application in the treatment of battery scrap

Treatment of battery scrap will gain more and more importance with advances in automation and increase in transport facilities. The short rotary furnace is eminently suited to the treatment of battery scrap by its capacity to quickly heat the charge scrap into anti-monial lead producing a slag of low lead content. Coal being used as the reductant, soda ash, pyrite cinder or iron ore are suitable for fluxing. High smelting capacities and antimonial lead recovery are achieved under low flux consumptions. (Dr. W. Schwartz and Mr. W. Haase, Lurgi Gesellschaft fur chemie and Huttenwesen mbH. Frankfurt, W. Germany)