Effect of intercalated substance and microwave heating conditions on the specific surface of kaoline

被引:0
|
作者
Slonka, Tadeusz [1 ]
Glowinski, Jozef [1 ]
Orzechowski, Kazimierz [1 ]
Leluk, Karol [1 ]
机构
[1] Wroclaw Univ Technol, Inst Technol Nieorgan & Nawozow Mineral, Wydzial Chem, PL-50370 Wroclaw, Poland
来源
PRZEMYSL CHEMICZNY | 2008年 / 87卷 / 02期
关键词
D O I
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中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Natural kaoline was intercalated with NH2NH2, HCONH2, Me2SO, K and Me acetates, HCONHMe, imidazole and urea and then heated in microwave field (2.45 GHz, 100-800 W) to develop the sp. surface of the original kaoline (19.0 m(2)/g) by thermal decompn. of the intercalating mols. The increase in the sample temp. during the microwave heating up to above 450 degrees C was obsd. The intercalation with NH4, and K acetates resulted in the highest increase in the sp. surface to 49.4 m(2)/g and 40.6 m(2)/g, resp. The dry pressing of the samples contributed to an increase in their sp. surface. The effect of sample size on the sp. surface after heating was also remarkable.
引用
收藏
页码:195 / 198
页数:4
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