BENEFICIATION OF FURNACE DUST FOR THE RECOVERY OF CHEMICAL AND METAL VALUES

摘要

A process for beneficiation of an electric arc furnace dust is disclosed. EAF dust (101) is briquetted with coal (60). The briquettes (64) are added to a furnace (12) along with a scrap metal charge (400). Zinc oxide fume (102) is driven off and collected for hydrometallurgical processing (100). Any iron containing insolubles (68) recovered from that process are added to the briquetting mix (60). A product solution (74) is processed (300) to recover zinc. Any iron insolubles (86) may be reintroduced into the briquetting process (60).