Pyrometallurgical Technology for Extracting Iron and Zinc from Electric Arc Furnace Dust

This study is aimed at developing a technology for processing electric arc furnace dust (EAFD) into granulated cast iron and zinc-containing product. The object was the from EAF of PJSC Magnitogorsk Iron Steel Works (Magnitogorsk, Chelyabinsk region). It has been established that contains valuable components in form ZnFe2O4 ZnO. EAFD involves reduction Fe Zn charge their oxygen-containing forms with C CO. content calculated % as follows: EAFD—17.44; scale—51.33; hard coal—20.61; quartz sand—4.71; lime—5.91. experiments high-temperature LHT 08/17 (Germany) allowed defining optimal temperature regime melting. As result laboratory tests, pig samples were obtained, containing wt%: Fe—95.27; C—4.4; S—0.07, others. Captured product after calcination (to remove halogens) contained 90.21 wt% resulting recommended one electrometallurgical steel production. raw material production