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图 1 粉煤灰SEM图
Figure 1. SEM image of CFA
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图 2 粉煤灰XRD图谱
Figure 2. XRD pattern of CFA
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图 3 NaOH/CFA对铝元素浸出率的影响
Figure 3. Influence of NaOH/CFA on aluminum extraction
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图 4 不同NaOH/CFA条件下烧结产物XRD图谱
Figure 4. XRD patterns of sintering products with different NaOH/CFA
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图 5 烧结温度对铝元素浸出率的影响
Figure 5. Influence of sintering temperature on aluminum extraction
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图 6 不同温度条件下烧结产物XRD图谱
Figure 6. XRD patterns of sintering products with different sintering temperatures
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图 7 硫酸浓度对铝元素浸出率的影响
Figure 7. Influence of concentration of H2SO4 on aluminum extraction
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图 8 烧结时间对铝元素浸出率的影响
Figure 8. Influence of sintering time on aluminum extraction
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图 9 不同条件下烧结产物FTIR图谱
Figure 9. FTIR spectra of sintering products in different conditions
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