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This research aims to explore temperature effects on synthesizing Na A zeolite from coal gangue for high-value applications.

March 30, 2026ACS OmegaOpen Access

Temperature-Controlled Synthesis of Na A Zeolite from High-Alumina Coal Gangue: Mechanism and Optimization

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This research aims to explore temperature effects on synthesizing Na A zeolite from coal gangue for high-value applications.
Investigated temperature-controlled alkali fusion-hydrothermal synthesis route.
Analyzed the phase evolution and dissolution behavior at varying calcination temperatures.
Assessed crystallinity and morphology of synthesized zeolite through NMR and diffraction techniques.
Identified 800 °C as the optimal calcination temperature for high-quality Na A zeolite production.
Achieved a high calcium ion adsorption capacity of 296 mg/g with synthesized zeolite.
Below 800 °C, insufficient reactive species limited crystal quality and adsorption capability.

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Experiment investigates temperature influence on Na A zeolite synthesis from high-alumina coal gangue, suggesting optimal conditions.

Yang et al. (2026) studied this question.

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