Occurrence of Rare Earth, Iron, Phosphorus and Calcium in High Grade Rare Earth Concentrate

Li Na; Qin Yufang; Jin Hailong; Wang Qiwei

doi:10.3969/j.issn.1000-6532.2022.06.033

2022 No. 6

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Article navigation > Multipurpose Utilization of Mineral Resources > 2022 > 43(6): 193-200

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Li Na, Qin Yufang, Jin Hailong, Wang Qiwei. Occurrence of Rare Earth, Iron, Phosphorus and Calcium in High Grade Rare Earth Concentrate[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(6): 193-200. doi: 10.3969/j.issn.1000-6532.2022.06.033

Citation:

Li Na, Qin Yufang, Jin Hailong, Wang Qiwei. Occurrence of Rare Earth, Iron, Phosphorus and Calcium in High Grade Rare Earth Concentrate[J]. Multipurpose Utilization of Mineral Resources, 2022, 43(6): 193-200. doi: 10.3969/j.issn.1000-6532.2022.06.033

Occurrence of Rare Earth, Iron, Phosphorus and Calcium in High Grade Rare Earth Concentrate

State Key Laboratory of Baiyunobo Rare Earth Resource Research and Comprehensive Utilization, Baotou Research Institute of Rare Earths, Baotou, Inner Mongolia, China

Received Date: 21 July 2021

Publish Date: 25 December 2022

Abstract

Abstract

Rare earth grade of Bayan Obo mixed rare earth concentrate is 65.86%, and the contents of P₂O₅, CaO and TFe are 11.26%, 3.89% and 1.34%, respectively. Chemical analysis, automatic mineral analysis system, SEM and EDS were used to study the occurrence of rare earth and impurity elements in mixed rare earth concentrate. The results show that rare earth mainly exists in bastnaesite, monazite, parisite and huanghoite in the form of independent minerals, iron mainly exists in magnetite hematite and pyrite, phosphorus mainly exists in monazite and apatite, calcium mainly exists in fluorite, apatite, dolomite and calcite, which can provides mineralogical basis for further separation of bastnaesite and monazite concentrate and reduction of impurity elements in rare earth concentrate.
- Rare earth concentrate /
- Rare earth /
- Iron /
- Phosphorus /
- Calcium /
- Occurrence state

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References

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