Jing-xuan WU, Jie LI, Jia-wei LIN, Shi-wen YI, Min LI, Wen-rou SU. Influence Mechanism of Microwave on Barite Flotation Based on Infrared Fitting Spectrum Analysis[J]. Spectroscopy and Spectral Analysis, 2021, 41(10): 3083
- Spectroscopy and Spectral Analysis
- Vol. 41, Issue 10, 3083 (2021)
Fig. 1. Effect of microwave pretreatment on flotation recovery of barite
(a): Recovery rate under different dosages of sodium oleate; (b): Recovery rate under different pH values
(a): Recovery rate under different dosages of sodium oleate; (b): Recovery rate under different pH values
Fig. 2. Infrared spectra of barite before and after interaction with sodium oleat
Fig. 3. Infrared spectra of the interactions between barite and sodium oleate under different microwave heating time
a : 0 s; b : 10 s; c : 30 s; d : 60 s
Fig. 4. High resolution spectra of barite flotation before and after microwave pretreatment
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
Fig. 5. Fitted smoothed and second derivative spectra of barite treated by microwave heating for 0 second
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
Fig. 6. Fitted smoothed and second derivative spectra of barite treated by microwave heating for 10 seconds
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
Fig. 7. Fitted smoothed and second derivative spectra of barite treated by microwave heating for 30 seconds
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
Fig. 8. Fitted smoothed and second derivative spectra of barite treated by microwave heating for 60 seconds
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
(a): 3 000~2 800 cm-1; (b): 1 200~1 050 cm-1; (c): 1 000~970 cm-1; (d): 650~600 cm-1
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Table 1. XRF analysis results of barite pure minerals, %
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Table 2. Fitting results of barite treated by microwave heating for 0 second
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Table 3. Fitting results of barite treated by microwave heating for 10 seconds
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Table 4. Fitting results of barite treated by microwave heating for 30 seconds
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Table 5. Fitting results of barite treated by microwave heating for 60 seconds
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