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1. LEACHING OF RARE EARTH ELEMENTS FROM BASTNASITE ORE (SECOND PART).

Author

Stopića, Srećko R. and Friedrichb, Bernd G.

Subjects
*IRON oxides, *ORES, *SULFURIC acid, *HYDROCHLORIC acid, *ATMOSPHERIC pressure, *CITRIC acid
Abstract

Dissolution of rare earth elements from bastnasite ore was studied using different leaching agents such as sulfuric acid, hydrochloric acid, acetic acid, citric acid and sodium hydroxide at 70°C, with 1mol/L, solid/liquid ratio of 0.05 between 30 and 180 min. The one-step direct leaching strategy was applied under atmospheric pressure aiming at selective leaching of rare earth elements from a matrix of iron oxides in which the rare earth elements - carbonates & flourides - are embedded. [ABSTRACT FROM AUTHOR]

Published
2019
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