Characterization of the Impurity Phases in Phosphogypsum by the EBSD-XPS Method

Ming-zhu TANG; Zhi-ying WANG; Yun-shan WANG; Wei-jun BAO; Gang YANG; Yong SUN

doi:10.3964/j.issn.1000-0593(2022)01-0136-05

Spectroscopy and Spectral Analysis, Volume. 42, Issue 1, 136(2022)

Characterization of the Impurity Phases in Phosphogypsum by the EBSD-XPS Method

Ming-zhu TANG^1、*, Zhi-ying WANG^1、1;, Yun-shan WANG^{2、2; *;}, Wei-jun BAO^2、2;, Gang YANG^2、2;, and Yong SUN^3、3;

Author Affiliations

¹1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China

²2. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

³3. Key Laboratory of Carbonaceous Wastes Processing and Process Intensification of Zhejiang Province, The University of Nottingham Ningbo China, Ningbo 315100, China

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Figures & Tables(4)

Fig. 1. Phase (a) and morphology (b) analysis of phosphogypsum

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Fig. 2. EBSD analysis of phosphogypsum
(a), (b): Silicon impurity; (c): Barium and iron impurities;(d), (f): Fluorine impurity; (e): Aluminum impurity

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Fig. 3. XPS analysis of Si (a), F (b), Al (c), P (d)

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Table 1. Content of phosphogypsum
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Table 1. Content of phosphogypsum
SO₃ CaO SiO₂ P₂O₅ F Al₂O₃ Na₂O Fe₂O₃ BaO K₂O
52.20 40.73 2.54 2.39 0.93 0.50 0.27 0.21 0.16 0.07

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Ming-zhu TANG, Zhi-ying WANG, Yun-shan WANG, Wei-jun BAO, Gang YANG, Yong SUN. Characterization of the Impurity Phases in Phosphogypsum by the EBSD-XPS Method[J]. Spectroscopy and Spectral Analysis, 2022, 42(1): 136

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