Synthesis of Analcime from Domestic Bentonite

,; ,; ,; ,; ,; ,

J. Korean Ceram. Soc. > Volume 16(4); 1979 > Article

Journal of the Korean Ceramic Society 1979;16(4): 201.

국산 Bentonite로부터 Analcime합성

노훤주, 주충열, 김면섭

한양대학교 화학공학과

Synthesis of Analcime from Domestic Bentonite

ABSTRACT

Domestic Yungil bentonite (montmorillonite) was treated with 1N sodium hydroxide solution in an autoclave at several temperatures, between 100 to 200℃, for 1 to 24 hrs. The products were examined by X-ray diffraction analysis. The following concecutive reaction was valid. montmorillonite→amorphous aluminosilicate→analcime The reaction rate constants k and k' at 200℃ were 0.35hr-1 and 0.22hr-1, respectively. The activation energies for the conversion from montmorillonite to amorphous aluminosilicate and from amorphous aluminosilicate to analcime were 10 kcal/mol and 12kcal/mol, respectively.