Abstract
In this study, the carbon thermal reduction of agglomerate composed of pure silica and carbon was studied at 1898 K, 1923 K, and 1948 K. The main product of this reaction is silicon carbide. Compare the reduction effects of four types of coal from different industrial silicon enterprises on the analysis of pure silica, and explore the application of different coal in silicon production. C4 coal has high SiO reactivity, while C1 coal has low SiO reactivity. An increase in temperature will reduce the reaction matching degree of coal and increase the amount of SiO gas esca**. C4 coal has a high and stable reaction matching degree, and the reaction rate is less affected by temperature, making it the best coal among the four types to produce SiC.
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Acknowledgements
This work was supported by the [National Science Foundation of China #1] under Grant [number 51904140]; [National Science Foundation of Gansu province China #2] under Grant [number 20JR10RA176]; and [Hongliu Outstanding Young Talent Support Program from Lanzhou University of Technology #3]. We are very grateful for this.
Funding
This work was supported by the [Gansu Province Science and Technology Program #1] under Grant [number 23ZDGD002]; [Lanzhou Youth Science and Technology Talent Innovation Project #2] under Grant [number 2023-QN-94] and [National Science Foundation of China #3] under Grant [number 51904140].
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[Fei Li] contributed to the study conception and design. Material preparation, data collection and analysis were performed by [Kaixin Yang], [Fei Li], [Wangwang Fu] and [Dahui Wang]. The first draft of the manuscript was written by [Fei Li] and [Kaixin Yang] and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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Li, F., Yang, K., Fu, W. et al. Carbothermal Reduction of SiO2 Using Different Coal. Silicon 16, 1967–1976 (2024). https://doi.org/10.1007/s12633-023-02807-7
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DOI: https://doi.org/10.1007/s12633-023-02807-7