Fathi Habashi
Hydrochloric acid (HCl), although more expensive than sulfuric, find uses as a leaching agent in reactions involving iron oxide. The reason for this substitution was the discovery that oxyhydrolysis of ferrous chloride by which HCl can be recycled economically. This avoided the pollution of the environment by ferrous sulfate. It was found further that the rate of leaching of sulfides is faster when HCl is used as compared with sulfuric apparently due to the formation of aqueous chlorine. In case of refractory gold ores, HCl leaching under pressure avoids the use of cyanide solution since gold chloride is produced which can be recovered by standard methods. Hydrochloric acid find also uses in the leaching of scheelite and apatite but its use in leaching clay and anorthosite is questionable.
@article{95953fc6-a070-4886-a5b8-5d88d8ddd5f5,
title={Hydrochloric Acid in Hydrometallurgy},
author={Fathi Habashi},
year={2026},
language={en}
}TY - JOUR TI - Hydrochloric Acid in Hydrometallurgy AU - Fathi Habashi PY - 2026 LA - en ER -
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