Method and system for processing rare earth concentrate ore

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United States of America Patent

PATENT NO 11773467
SERIAL NO

16663964

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Abstract

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Provided are a method and a system for processing a rare earth concentrate ore. The method comprises (1) mixing the rare earth concentrate ore and concentrated sulfuric acid, thereby obtaining a mixed slurry and a first fluorine-containing gas; (2) mixing the mixed slurry and an initiator liquid for acidolysis, thereby obtaining a clinker and a second fluorine-containing gas; (3) subjecting the clinker to leaching with water, thereby obtaining a leached slurry; (4) subjecting the leached slurry to a solid-liquid separation, thereby obtaining a filtrate and a leached slag, and recycling the leached slag to step (2) for acidolysis again.

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Patent Owner(s)

Patent OwnerAddress
CHINA ENFI ENGINEERING CORPORATION12 FUXING ROAD HAIDIAN DISTRICT BEIJING 100038 CHINA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Du, Guoshan Beijing, CN 2 0
Qin, Bo Beijing, CN 45 323
Qiu, Shuang Beijing, CN 13 6
Tang, Jianwen Beijing, CN 6 5
Xian, Pengfei Beijing, CN 2 0
Zhou, Wenlong Beijing, CN 10 4

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