Mineralogical characteristic and beneficiation evaluation of rare earth carbonate wall rock

• Autorzy: Gao Chunqing , Yan Guoying , Wang Hailiang , Luo Hongzhen , Zhang Lin , Yang Hanxu , Xu Jian

Identyfikatory

DOI

10.37190/ppmp/161300

• Języki publikacji: EN

Abstrakty

EN

In order to rationalize the development and utilization of the wall rock discarded during rare earth mining, chemical analysis, inductively coupled plasma-atomic emission spectroscopy, X-ray diffraction analysis, artificial panning, optical microscope analysis, mineral liberation analysis and energy-dispersive spectroscopy were used to study the process mineralogy of the wall rock. The results show that the main useful elements in the rare earth wall rock were iron, light rare earth elements, fluorine and niobium. Iron was mainly occurrence as magnetic iron in magnetite, rare earth elements in bastnaesite and monazite, fluorine as a independent mineral in fluorite and niobium in columbite. The main useful minerals were finely disseminated, with magnetite (48.16%), bastnaesite (49.04%), monazite (42.18%), fluorite (39.30%) and columbite (63.26%) distributed in -0.030 mm particle size. The useful minerals were evaluated separately for beneficiation based on the process mineralogical characteristics of the rare earth wall rock, and the results showed that magnetite, rare earth and fluorite resources could be effectively recovered using magnetic separation, flotation, gravity concentration and leaching enrichment methods. The sequential recovery of iron, rare earth, fluorine and niobium elements produces iron concentrate (65.40% TFe at recovery of 38.03%), rare earth concentrate (50.66% REE at recovery of 62.73%), fluorite concentrate (95.23% CaF2 at recovery of 40.34%) and niobium iron ore concentrate (1.63% Nb2O5 at recovery of 5.56%). This study provides recommendations for the rational development and utilization of rare earth wall rock and provides reasonable levels of recovery predictions.

Słowa kluczowe

EN

rare earth; wall rock; magnetite; fluorite; process mineralogy; beneficiation

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2023
• Tom: Vol. 59, iss. 1
• Strony: art. no. 161300
• Opis fizyczny: Bibliogr. 20 poz., tab., wykr.

Twórcy

autor

Gao Chunqing

• Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China
• National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co., Ltd., Maanshan 243000, China

autor

Yan Guoying

• Baotou Steel Group Mining Institute (Co., Ltd.)

autor

Wang Hailiang

• Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China
• National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co., Ltd., Maanshan 243000, China

autor

Luo Hongzhen

• Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China
• National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co., Ltd., Maanshan 243000, China

autor

Zhang Lin

• Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China
• National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co., Ltd., Maanshan 243000, China

autor

Yang Hanxu

• Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China
• National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co., Ltd., Maanshan 243000, China

autor

Xu Jian

• Sinosteel Maanshan General Institute of Mining Research Co., Ltd., Maanshan 243000, China
• National Engineering Research Center of Huawei High Efficiency Cyclic Utilization of Metal Mineral Resources Co., Ltd., Maanshan 243000, China

Bibliografia

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Uwagi

This study was supported by a joint fund project (Progect No. 20ZG054-KKN-40-0004) from Sinosteel Maanshan General Institute of Mining Research Co., Ltd. and Baotou steel Group Mining Institute Co., Ltd.