| Home | E-Submission | Sitemap | Login | Contact Us |  
J. Korean Ceram. Soc. > Volume 40(9); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(9): 897.
doi: https://doi.org/10.4191/kcers.2003.40.9.897
석탄회의 황산화반응과 알루미늄이온의 마이크로파 추출
박영증, 박영민, 양태영, 윤석영, 박홍채
부산대학교 재료공학부
Sulfating Reaction of Coal Fly Ash and Microwave Extraction of Aluminum Ions
The sulfating reaction of coal fly ash with ammonium sulfate and the microwave extraction of aluminum ions from the resultant materials using sulfuric acid have been investigated. The (NH$_4$)$_3$Al(SO$_4$)$_3$ formed by the reaction of coal fly ash and ammonium sulfate decomposed to NH$_4$Al(SO$_4$)$_2$ at $geq$ 350$^{circ}C$. The maximum efficiency of aluminum ions extracted from the sulfating reaction product (400$^{circ}C$, 120 min) by microwave heating (90$^{circ}C$, 240 min) using 1 M H$_2$SO$_4$ was 84% (based on Al content in coal fly ash) but 77% by conventional heating at same condition.
Key words: Coal fly ash, Sulfating reaction, Ammonium sulfate, Sulfuric acid, Microwave extraction, Aluminum ions
Editorial Office
Meorijae Bldg., Suite # 403, 76, Bangbae-ro, Seocho-gu, Seoul 06704, Korea
TEL: +82-2-584-0185   FAX: +82-2-586-4582   E-mail: ceramic@kcers.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Ceramic Society.                      Developed in M2PI