The effects of boron on sulfided Ni Mo/γ Al 2O 3 catalysts have been studied. The addition of boron modifies the acidity of the acid sites and the active metal dispersion of the catalysts. USY(ultrastable Y type) zeo...
The coordination of Mg in spinel, diopside and pyrope is 4,6 and 8,respectively. The spectral profiles of these minerals are different, and the Mg K edge shifts towards higher energy with increase in the coordination ...