화학공학소재연구정보센터
Journal of the Korean Industrial and Engineering Chemistry, Vol.7, No.1, 43-50, February, 1996
천연제올라이트의 상규명 및 아모니아 제거 특성
A Study on the Phase Identification and Ion-Exchange Behavior of NH4+ at Natural Zeolite
초록
Clinoptilolite 계열의 국내산 천연제올라이트에 대한 상규명과 암모늄 이온 제거능력에 대해 연구하였다. 영일만 지역에 매장되어 있는 국내산 천연제올라이트는 XRD와 FT-IR 분석에 의해 열적으로 불안정한 heulandite임이 증명되었다. 또한 K+ 이온으로 이온교환된 heulandite가 가장 높은 열적 안정성을 보였다. 그러나 암모늄이온의 제거능력에 있어서는 이온교환하지 않은 제올라이트가 가장 우수한 제거능력을 보였다.
A series of domestic natural zeolites were investigated to identify the phase and to study the capability of NH4+-ion removal from solution system. It was proved that the natural zeolite from Young-II bay area was thermally unstable zeolite, heulandite by XRD and FT-IR analyses. In addition, the heulandite exchanged by K+ ion showed the highest thermal stability upon heat-treatments. However, the best capability of removing NH4+ -ion from the solution system was the non-exchanged zeolite.
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