Applied Chemistry, Vol.7, No.1, 253-256, May, 2003
WO3의 환원-탄화에 있어서 Zeolite NaX, HX, KX의 특성에 따른 영향
The Effect of Zeolite NaX, HX and KX on the Reduction-Carburization of WO3
The effect of the Zeolite HX, NaX, and KX prepared by ion-exchange method, on the reduction-carburization of WO3 was studied. This study was performed at the temperature range from 300 ℃ to 725 ℃ with CO gas. The produced gas, CO2, was analyzed by mass spectroscopy. The addition of the Zeolite HX, NaX, and KX into WO3 increased the efficiency of the reduction-carburization of WO3 and Zeolite HX with the strongest acidity was the most effective on reduction-carburization among them. The Zeolite HX, NaX, and KX improved the oxygen mobility of WO3 and the acidity of the Zeolite was directly related to the increasing efficiency of reduction-carburization of WO3.