System and process for selective rare earth extraction with sulphur recovery

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United States of America

PATENT NO 10597754
APP PUB NO 20150329940A1
SERIAL NO

14708131

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Abstract

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The application relates to a process for rare earth extraction and thorium removal from monazite or bastnasite bearing ores or ore beneficiation and industrial waste containing a variable amount of rare earth elements as oxides, phosphates, carbonates or sulfates, comprising (i) controlled mixture between sulfuric acid and the material containing rare earth and (ii) water leaching under controlled conditions.

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Patent Owner(s)

Patent OwnerAddress
VALE S ARIO DE JANEIRO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Silva, Ruberlan Gomes Belo Horizonte, BR 1 1
Teixeira, Leandro Augusto Viana Belo Horizonte, BR 1 1

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