Process mineralogy of Bayan Obo rare earth ore by MLA

• Autorzy: Xu Caili , Chi Ru’an , Zhang Yantu , Zhong Chengbin , Ruan Yaoyang , Lyu Renliang , Zhou Fang

Identyfikatory

DOI

10.37190/ppmp/124898

• Języki publikacji: EN

Abstrakty

EN

The maximum recovery of rare earth resource from the Bayan Obo ore deposit is a difficult task, especially without the sufficient data of mineralogy. In this paper the mineralogy of Bayan Obo ore deposit by comprehensively research with the application of mineral liberation analyzer (MLA) is reported. The MLA was applied to quantitatively analyze the complicated element/mineral compositions, the REE occurrence, the size distribution and the degree of liberation of the Bayan Obo ore. Mineralogical analysis of the rare earth ore has shown that REEs are present mainly as bastnaesite and monazite-(Ce) to a small extent as parisite-(Ce). 5.85% of the REEs, 34.99% of iron and 0.12% of niobium occur in the ore sample. There are 76.99% of iron occurred in hematite and the remaining iron is mainly distributed in magnetite and goethite. The degree of liberation of bastnaesite and monazite(Ce) was 79.65% and 75.67% respectively when the grinding fineness was 83.57% passing 75 μm sieves. Un-liberated or partly liberated rare earth minerals are associated closely mainly with other rare earth minerals and gangues. These theoretical data could be employed to further comprehensively utilize the rare earth ore.

Słowa kluczowe

EN

process mineralogy; rare earth; Bayan Obo ore; MLA

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Physicochemical Problems of Mineral Processing
• Rocznik: 2020
• Tom: Vol. 56, iss. 4
• Strony: 737--745
• Opis fizyczny: Bibliogr. 35 poz., rys., tab.

Twórcy

autor

Xu Caili

• School of Minerals Processing and Bioengineering, Central South University, Changsha, 410083, Hunan province, China

autor

Chi Ru’an

• Key Laboratory of Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan, 430073, Hubei province, China

autor

Zhang Yantu

• School of Chemistry and Chemical Engineering, Yan’an University, Yan’an 716000, Shaanxi province, China

autor

Zhong Chengbin

• Hubei Weichen Environment Technology Co.,Ltd ., Huangshi, 435000, Hubei province, China

autor

Ruan Yaoyang

• Key Laboratory of Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan, 430073, Hubei province, China

autor

Lyu Renliang

• Key Laboratory of Novel Reactor and Green Chemical Technology of Hubei Province, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan, 430205, Hubei province, China

autor

Zhou Fang

• Key Laboratory of Green Chemical Process of Ministry of Education, School of Xingfa Mining Engineering, Wuhan Institute of Technology, Wuhan, 430073, Hubei province, China

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