Mixed rare earth concentrate mineral and suspended mineral phase transformation-clean leaching system and method thereof

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United States of America

PATENT NO 12195826
APP PUB NO 20240279773A1
SERIAL NO

18559248

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Abstract

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A mixed rare earth concentrate mineral and suspended mineral phase transformation-clean leaching system and a method thereof achieve low-temperature phasing transformation of a rare earth mineral. The system includes a Venturi dryer, a multi-stage separator, a suspension preheating decomposition furnace, a multi-state fluidization sealing valve, a mineral phase transformation machine, a ball mill, a multi-stage acid leaching tank, an alkali leaching tank and a neutralization tank. The method includes: after preheating mixed rare earth concentrate mineral powder, placing the preheated mixed rare earth concentrate mineral powder in a suspension preheating decomposition furnace for preheating decomposition to enable the powder to be in the suspension state, after cyclone separation, introducing the powder to a mineral phase transformation machine for mineral phase transformation, after ball milling, performing acid washing, performing alkali decomposition on acid leached residues, performing acid leaching twice on acid liquor, and neutralizing leached products to obtain neutralization residues.

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  • NORTHEASTERN UNIVERSITY

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gao, Peng Shenyang, CN 265 1442
Han, Yuexin Shenyang, CN 5 9
Li, Wenbo Shenyang, CN 248 1080
Li, Yanjun Shenyang, CN 90 340
Ning, Jilai Shenyang, CN 1 0
Sun, Yongsheng Shenyang, CN 10 4
Yuan, Shuai Shenyang, CN 71 62

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