Ceramics-Silikáty 37, (3) 149 - 152 (1993) |
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TEMPERATURE PROGRAMMED DESORPTION OF AMMONIA FROM DEALUMINATED CLINOPTILOLITE
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Grejták František, Horváth Ivan, Krajčovič Jozef,
Kubranová Mária
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Institute of Inorganic Chemistry, Slovak Academy of Sciences, 842 36 Bratislava
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Ammonia was used for adsorption on calcined dealuminated NH-clinoptilolite. Four acid site types of clinoptilolite were determined by TPD. Extraframework aluminium remained in clinoptilolite structure after dealumination increases the relative number of weak acid sites and has blocking influence on strong acid sites determination. |
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