Keywords: Primary zinc smelting flowchart -vector.svg US EPA document The top path is the pyrometallurgical process of smelting zinc and the bottom path is the electrolytic process Source Classification Codes are given in parentheses 2015-07-08 raster http //www epa gov/ttn/chief/ap42/ch12/final/c12s07 pdf US Environmental Protection Agency figure 12 7-1 <br /> vector own raster US Environmental Protection Agency <br /> vector Mliu92 other versions derived from 200 Zinc smelting flowchart png Translation possible PD-USGov Uploaded with UploadWizard Zinc smelting |