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Chin. Phys. B, 2021, Vol. 30(4): 045201    DOI: 10.1088/1674-1056/abccb6

Decomposition reaction of phosphate rock under the action of microwave plasma

Hui Zheng(郑慧), Meng Yang(杨猛), Cheng-Fa Jiang(江成发), and Dai-Jun Liu(刘代俊)
1 Department of Chemical Engineering, Sichuan University, Chengdu 610065, China
Abstract  The decomposition reaction of phosphate rock under the action of microwave plasma was investigated. Phosphate rock and its decomposition products were characterized by x-ray diffraction (XRD), energy disperse spectroscopy (EDS), and chemical analysis. The measurements of electron temperature (T e) and electron density (N e) of plasma plume under atmospheric pressure were carried out using optical emission spectroscopy(OES). The electron temperature (T e) was determined based on the calculation of the relative intensity of the O II (301.91 nm) and O II (347.49 nm) spectral lines. Correspondingly, electron densities were obtained using the Saha ionization equation which was based on the C I (247.86 nm) line and the C II (296.62 nm) line under the assumption of local thermodynamic equilibrium (LTE). The relationship between the relative intensity of the active components and the gas output was studied by the spectrometer. Finally the reaction mechanism of the decomposition of the phosphate rock under the action of the atmospheric pressure microwave plasma was proposed. The results showed that with the increase of CO flow and microwave power, the electron temperature and electron density in the plasma show a decreasing and increasing trend. The CO is dissociated into gaseous carbon ions under the action of microwave plasma, and the presence of gaseous carbon ions promotes the decomposition of the phosphate rock.
Keywords:  microwave plasma      phosphorus decomposition      optical emission spectroscopy      reaction mechanism  
Received:  27 September 2020      Revised:  06 November 2020      Accepted manuscript online:  23 November 2020
PACS:  52.40.Hf (Plasma-material interactions; boundary layer effects)  
  82.33.Xj (Plasma reactions (including flowing afterglow and electric discharges))  
  82.60.-s (Chemical thermodynamics)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 21076131).
Corresponding Authors:  Corresponding author. E-mail: Corresponding author. E-mail:   

Cite this article: 

Hui Zheng(郑慧), Meng Yang(杨猛), Cheng-Fa Jiang(江成发), and Dai-Jun Liu(刘代俊) Decomposition reaction of phosphate rock under the action of microwave plasma 2021 Chin. Phys. B 30 045201

1 Hao Q, Fu X H, Song S G, Gibson D, Li C, Chu H O and Shi Y J 2018 Coatings 8 270
2 Das D and Roy A 2020 Appl. Surf. Sci. 515 146043
3 Ibrahim N I and Wasfi A S 2019 Synth. Met. 250 49
4 Azahara A G, Enrique R C and David P M 2020 Appl. Surf. Sci. 513 145764
5 Chang Z S, Zhang G J, Shao X J and Zhang Z H 2012 Phys. Plasmas 19 073513
6 Mariotti D, Shimizu Y, Sasaki T and Koshizaki N 2007 J. Appl. Phys. 101 013307
7 Sarani A, Nikiforov A Y and Leys C 2010 Phys. Plasmas 17 063504
8 Holclajtner-Antunovic I, Raskovic M and Jovicevic S 2004 Spectrochimica Acta Part B-Atomic Spectroscopy 59 419
9 Liang J G, Wei T J and Yong L2013 Phosphate & Compound Fertilizer 28 15 (in Chinese)
10 Pietanza L D, Colonna G and Capitelli M 2017 Plasma Sources Sci. Technol. 26 125007
11 Peters J, Bartlett B, Lindsay J and Heberlein J 2008 Plasma Chem. Plasma Process. 28 331
12 Sarkar A and Singh M 2017 Plasma Sci. Technol. 19 025403
13 Kurucz Atomic Database
14 Ota K, Kato Y and Teii K 2019 Jpn. J. Appl. Phys. 58 016003
15, LXcat database
16 Laporta V, Tennyson J and Celiberto R2016 Plasma Sources Sci. Technol. 25 01
17 Essenhigh K A, Utkin Y G, Bernard C, Adamovich I V and Rich J W 2006 Chem. Phys. 330 506
18 Plonjes E, Palm P, Chernukho A P, Adamovich I V and Rich J W 2000 Chem. Phys. 256 315
19 Shin D H, Hong Y C, Lee S J, Kim Y J, Cho C H, Ma S H, Chun S M, Lee B J and Uhm H S2013 Surf. Coat. Technol. 228 520
20 Uhm H S, Na Y H, Hong Y C, Shin D H, Cho C H and Park Y K2014 Energy & Fuels 28 4402
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