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Extraction of Metals from Polymetallic Raw Materials with the Regeneration of the Basic (NH3) and Acidic (HCl) Reagents
https://doi.org/10.18412/1816-0395-2019-2-52-54
Abstract
Extraction of metals from polymetallic raw materials is carried out by leaching with hydrochloric acid solution, then metals are precipitated from hydrochloric acid solutions with ammonia, the NH4Cl salt is crystallized from the solution, and the separate preparation of gaseous basic (NH3) and acid (HCl) reagents is performed by the interaction of (NH4)2SO4 and NH4Cl salts. The process of extraction of metals occurs in a closed production without release of environmentally hazardous components into the environment.
About the Author
L.A. Voropanova
North Caucasus Institute of Mining and Metallurgy (State Technological University)
Russian Federation
Dr. Sci. (Eng.), Professor
Russian Federation
Dr. Sci. (Eng.), Professor
References
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Review
For citations:
Voropanova L. Extraction of Metals from Polymetallic Raw Materials with the Regeneration of the Basic (NH3) and Acidic (HCl) Reagents. Ecology and Industry of Russia. 2019;23(2):52-54. (In Russ.) https://doi.org/10.18412/1816-0395-2019-2-52-54
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