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Microwave And Ultrasonic Assisted Synthesis Of Zeolites From Coal Fly Ash In Batch And Circulating Batch Operation, Tahani Hassn Aldahri
Microwave And Ultrasonic Assisted Synthesis Of Zeolites From Coal Fly Ash In Batch And Circulating Batch Operation, Tahani Hassn Aldahri
Electronic Thesis and Dissertation Repository
This research was focused on the production of zeolites from CFA throughutilizing ultrasound and microwave power. The initial conventional heating process of 6 h prior to microwave irradiation for samples with high solid-to-liquid (S/L) ratio (CFA mass/ NaOH solution volume) led to a higher yield of zeolite and decreased the synthesis time and consumption of energy,while keeping the high quality of the synthesized zeolite intact. The crystal growth of the nuclei generated over 6 h of conventional hydrothermal treatment was enhanced by the post-microwave heating. Ultrasound-assisted zeolitizationCFA was also applied in this research.
When ultrasound energy was applied after hydrothermal …