The Occurrence and Distribution of REE Minerals in Fluorite-Type Ores in Bayan Obo: Constraints From Raman Mapping

Tie-zhu ZHANG; Yu-xuan ZHANG; Sai-yu LIU; Hang-ren LI; Wen-ce XU; Jin-shan ZHANG; Shun-li OUYANG; Nan-nan WU

doi:10.3964/j.issn.1000-0593(2021)12-3776-06

Spectroscopy and Spectral Analysis, Volume. 41, Issue 12, 3776(2021)

The Occurrence and Distribution of REE Minerals in Fluorite-Type Ores in Bayan Obo: Constraints From Raman Mapping

Tie-zhu ZHANG^1、*, Yu-xuan ZHANG^{2、2; 3;}, Sai-yu LIU^{2、2; 4;}, Hang-ren LI^2、2;, Wen-ce XU^{1、1; 2;}, Jin-shan ZHANG^{1、1; *;}, Shun-li OUYANG^{2、2; *;}, and Nan-nan WU^4、4;

Author Affiliations

¹1. Mining Research Institute of Inner Mongolia University of Science and Technology, Baotou 014010, China

²2. Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China

⁴4. College of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China

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Figures & Tables(7)

Fig. 1. Sample of banded fluorite type of Bayan Obo Mine
Mnz: Monazite; Fl: Fluorite; Ap: Apatite; Brt: Barite; Py: Pyrite

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Fig. 2. EDS images and single point energy spectrum elemental distribution of fluorite type

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Fig. 3. Raman spectrogram and Mapping mineral distribution map of fluorite type X50 objective microscopic confocal map
(b): Fluorite; (c): Barite; (d): Apatite; (e): Monazite

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Table 1. Multi element content analysis results of fluorite rare earth sample (Wt%)
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Table 1. Multi element content analysis results of fluorite rare earth sample (Wt%)
Element Content Element Content Element Content
TFe 31.30 SiO₂ 0.12 MnO 0.46
ERO 7.58 CaO 27.8 Nb₂O₅ 0.33
Na₂O 0.05 TiO₂ 0.43 BaO 0.19
MgO 0.12 P 0.09 LOI 5.51
Al₂O₃ 0.10 S 0.09
K₂O 0.04 F 19.75

Table 2. Regional energy spectrum analysis value and element content calculation of fluorite type sample surface scanning (Wt%)
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Table 2. Regional energy spectrum analysis value and element content calculation of fluorite type sample surface scanning (Wt%)
Element C O P S F Ca Fe Ba La Ce Nd Total
Content 3.32 32.1 3.77 2.36 20.75 21.38 0.46 11.33 1.32 2.44 0.77 100

Table 3. The point energy spectrum element average content calculation of monazite (Wt%)

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Table 3. The point energy spectrum element average content calculation of monazite (Wt%)

Element	Ce	La	Nd	P	O	Total
point 1	30.47	14.98	9.67	12.92	29.53	97.57
point 2	29.51	16.07	7.6	11.89	28.96	94.03
point 3	31.48	16.48	8.17	12.49	28.12	96.74
point 4	29.45	15.37	7.49	12.12	29.44	93.87
point 5	29.46	16.02	7.29	11.77	29.19	93.73
Average	30.074	15.784	8.044	12.238	29.048	95.188

Table 4. Mineralogical characteristics and Raman vibration peaks of fluorite type

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Table 4. Mineralogical characteristics and Raman vibration peaks of fluorite type

矿物名称	化学式	拉曼特征峰位/ cm^-1
萤石	CaF₂	320		228		457				642
		ν₁		ν₂		ν₃				ν₄
重晶石	BaSO₄	987	451	459		1 083	1 103	1 141	1 167	616	646
磷灰石	Ca₅[PO₄]₃F	963	429	459		1 013	1 053	1 124		591	601	651
独居石	(Ce, La, Nd)PO₄	970	395	414	466	990	1 025	1 055	1 072	537	570	589	619

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Tie-zhu ZHANG, Yu-xuan ZHANG, Sai-yu LIU, Hang-ren LI, Wen-ce XU, Jin-shan ZHANG, Shun-li OUYANG, Nan-nan WU. The Occurrence and Distribution of REE Minerals in Fluorite-Type Ores in Bayan Obo: Constraints From Raman Mapping[J]. Spectroscopy and Spectral Analysis, 2021, 41(12): 3776

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Paper Information

Category: Research Articles

Received: Nov. 4, 2020

Accepted: --

Published Online: Dec. 17, 2021

The Author Email: Tie-zhu ZHANG (zhangtiezhu2014@163.com)

DOI:10.3964/j.issn.1000-0593(2021)12-3776-06

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Multi element content analysis results of fluorite rare earth sample (Wt%)

Table 1. Multi element content analysis results of fluorite rare earth sample (Wt%)

Table 2. Regional energy spectrum analysis value and element content calculation of fluorite type sample surface scanning (Wt%)

Table 2. Regional energy spectrum analysis value and element content calculation of fluorite type sample surface scanning (Wt%)

Table 3. The point energy spectrum element average content calculation of monazite (Wt%)

Table 3. The point energy spectrum element average content calculation of monazite (Wt%)

Table 4. Mineralogical characteristics and Raman vibration peaks of fluorite type

Table 4. Mineralogical characteristics and Raman vibration peaks of fluorite type