석탄 비산회로부터 수열법에 의한 제올라이트 4A의 합성시 온도와 압력의 영향

• 영문명: The Effects of Temperature and Pressure on Synthesis of Zeolite 4A from Coal Fly Ash by Hydrothermal Reaction
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 윤철(Cheol Yoon) 연익준(Ik jun Yeon) 김광렬(Kwang yul Kim)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제16권 제3호, 217~221쪽, 전체 5쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 1999.09.30

영문 초록

This study was carried out to synthesis the zeolite using the bituminous coal fly ash emitted from power plant that occurs several environmental problems. In spite of fly ash has contained high content of SiO₂ and Al₂O₃, it disposed mainly landfill. If the effective methods to recover the SiO₂ and Al₂O₃ were developed, the fly ash could be utilized valuable raw materials. In this study, fly ash was used as raw material to synthesize the zeolite by pressurized hydrothermal reaction. Also, experimental parameters included temperature(70~110℃, and pressure(140~200 psi) of crystallization were investigated. The more crystallization pressure was increased, the more Zeolite 4A was synthesized at 70 and 90℃. Zeolite 4A of metastable phase tend to be transformed into sodalite of stable phase at 110℃.

목차

Abstract

Ⅰ. 서론

Ⅱ. 실험

Ⅲ. 결과 및 고찰

Ⅳ. 결론

참고문헌