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노훤주,주충열,김면섭 한국세라믹학회 1979 한국세라믹학회지 Vol.16 No.4
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.