Efficient synthesis of forsterite via high-temperature thermochemical reactions from boron mud waste without briquetting--颗粒学报PARTICUOLOGY

Hu, F., Fu, L., Zhang, Q., Xu, G., & Bai, D. (2024). Efficient synthesis of forsterite via high-temperature thermochemical reactions from boron mud waste without briquetting. Particuology, 87, 124-132. https://doi.org/10.1016/j.partic.2023.08.006

Efficient synthesis of forsterite via high-temperature thermochemical reactions from boron mud waste without briquetting

Fangling Hu ^a, Liangliang Fu ^{a b *}, Qingjin Zhang ^{a c}, Guangwen Xu ^a, Dingrong Bai ^a *

a Key Laboratory on Resources Chemicals and Material of Ministry of Education, Shenyang University of Chemical Technology, Shenyang, 110142, China
b School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, 114051, China
c School of Materials Science and Engineering, Shenyang University of Technology, Shenyang, 110142, China

10.1016/j.partic.2023.08.006

Volume 87, April 2024, Pages 124-132

Received 1 June 2023, Revised 7 August 2023, Accepted 12 August 2023, Available online 26 August 2023, Version of Record 31 August 2023.

E-mail: full_1985@syuct.edu.cn; drbai@syuct.edu.cn

Highlights

• Boron mud can be converted to forsterite-rich materials at 1300–1500 °C within minutes.

• Aggregated but non-briquette fine particles exhibit superior reaction performance.

• Over 90% of SiO₂ in boron mud is converted to form forsterite after 10 min of reactions.

• Forsterite content is higher than 85% after 10 min of reactions at 1400–1500 °C.

• The synthesized powder materials are over 98% in terms of relative densification.

Abstract

Forsterite is a highly demanded material in high-temperature industries due to its superior performance in elevated temperatures. This study proposes synthesizing high-quality forsterite via high-temperature thermochemical reactions using abundant boron mud waste. The new synthesis method capitalizes on the high reactivity of fine raw powder materials, enabling the reaction to reach completion at low temperatures rapidly. The chemical characteristics, microscopic morphology, and structure of synthesized samples are systematically studied using XRD and SEM. The results confirm that boron mud can be efficiently transformed into forsterite after 10 min of reactions at 1500 °C. The synthesized products attain over 98.7% densification and contain more than 85.0% forsterite with well-developed grains. The activation energy of forsterite grain growth in the 1100–1500 °C temperature range is 165.5 kJ/mol. This study provides a low-cost method for producing forsterite and an efficient and environmentally friendly solution for treating solid waste.

Graphical abstract

Keywords

Fluidized bed; Boron mud; Forsterite; Solid state reaction; Activation energy; Grain growth

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