Nk. Valitov et al., LEWIS AND BRONSTED ACIDITY OF AN INDUSTRIAL ALUMINOSILICATE CATALYST,KAOLIN, AND A MIXTURE OF THEM, Journal of applied chemistry of the USSR, 65(10), 1992, pp. 1869-1873
To increase the accuracy of the determination of the acidity of indust
rial cracking catalysts, the acidity of an aluminosilicate catalyst, k
aolin, and their mixtures were studied chromatographically with respec
t to the reversible adsorption of pyridine. It was shown that a correc
t evaluation of the economic effect of the catalyst requires a determi
nation of the total acidity with respect to reversibly and irreversibl
y chemisorbed titrants.