A Metallic compound having a comparatively substantial focus of steel and can be utilized to extract certain components in handy and affordable method referred to as ore.  Roasting and calcination are completed in differing kinds of furnaces; the most often made use of will be the reverberatory furnace. While in https://metallurgical-processes80134.tkzblog.com/29553836/the-definitive-guide-to-metallurgical-processes