fluidized-bed roaster

Zinc smelting — is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide,Citation | title = Compilation of Air Pollutant Emission Factors | publisher = U.S. Environmental… … Wikipedia
metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… … Universalium
Coffee roasting — machine Light roasted coffee beans … Wikipedia
Hydrochloric acid — IUPAC name Hydrochloric acid[ … Wikipedia
copper processing — Introduction use of smelting or leaching, usually followed by electrolytic refining or recovery, to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of copper and of its… … Universalium

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