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J. Korean Ceram. Soc. > Volume 41(12); 2004 > Article
Journal of the Korean Ceramic Society 2004;41(12): 933.
doi: https://doi.org/10.4191/kcers.2004.41.12.933
폐 패각과 정유 폐촉매를 사용한 Tricalcium Aluminate 클링커의 합성에 관한 연구
이건호, 송태웅
경남대학교 신소재공학부
Study on the Synthesis of Tricalcium Aluminate Clinker from Waste Shell and Spent Oil-Refining Catalyst
Keon-Ho Lee, Tae-Woong Song
Division of Advanced Materials Engineering, Kyungnam University
The clinkerbility and the behaviour of formation of $3CaO{cdot}Al_{2}O_3$ were studied using the mixture of waste oyster shell and spent oil-refining catalyst mainly by the mineral and microstructural observation. By virtue of the formation of $12CaO{cdot}7Al_{2}O_3$ at relatively low temperature and its successive reaction with CaO, the $3CaO{cdot}Al_{2}O_3$ clinkers were formed easily without affection of minor constituents contained in oyster shell. Thus clinkers were formed at $1400^{circ}C$ directly but began to melt incongruently at higher temperature above that. Aluminium hydroxide, however, was not desirable as an aluminous raw materials of the clinker because rapid melting occurs before $3CaO{cdot}Al_{2}O_3$ forms main clinker mineral.
Key words: Triclacium aluminate clinker, Oyster shell, Spent oil-refining catalyst
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