석탄회를 이용한 제올라이트의 열수합성 학 회 지 대한자원환경지질학회

• 발행기관: 대한자원환경지질학회
• 저자명: 진지영 문희수 장영남
• 간행물 정보: 『자원환경지질』32권 6호, 575~584쪽, 전체 10쪽
• 주제분류: 자연과학 > 지질학
• 파일형태: PDF
• 발행일자: 1999.12.30

영문 초록

Through alkaline hydrothermal activation processes, zeolite minerals were synthesized from fly ashes produced at Youngwol and Boryoung power plants. The syntheses were performed in a closed teflon vessel with a teflon-coated magnetic bar for continuous stirring during the reaction periods. The experiments were caeeied out at three different reaction temperatures (100℃,200℃, and 250℃), with varying NaOH concentations (0.5∼8N) and reaction time (24 to 288 hours). Mineralogical characterization of the reaction products indicated that Na-p1, analcime, and hydroxysodalite were dominant zeolites formed from the both fly ashes at the given experimental conditions, The highest amount of zoelites produced from the Youngwol and Boryoung fly ash were:60 and 45wt%for Na-P1, 70 and 45wt% for analicime, 50 and 40wt% for hydroxysodalite, respectively. A small amount of zeolite A was present in NaP-dominant dample is about 250 meq/100g. This suggests the possibility of its utilization as an ion-absorbent.

키워드

석탄회 제올라이트 열수합성 잠재적 오염가능성 채널구조 공동구조 양이온 교환능력 흡착능력