A growing interest in designing high-alumina MgO-bonded refractory castables has been identified recent years due to the magnesia ability react: (i) with water at initial processing stages of these materials (inducing precipitation brucite phase) or (ii) alumina, giving rise situ MgAl2O4 generation high temperatures. Nevertheless, despite great potential caustic be used as a binder such systems...

Wet-kneaded silica–magnesia is a benchmark catalyst for the one-step ethanol-to-butadiene Lebedev process. Magnesium silicates, formed during wet kneading, have been proposed as active sites butadiene formation, and their properties are mainly explained in terms of ratio acid base sites. However, mechanism formation reactivity not yet fully established. Here we show that magnesium silicates by ...

The results of studies the structure, phase composition, and mechanical chemical properties aluminosilicate, magnesia-quartz, glass-ceramic proppants (RosProp, BorProp, ForeRCP, Wauli, etc.) are reported. It is shown that outperform ceramic analogs because a highly efficient method dispersing melt jet into droplets used to spherize particles structural features manifested in formation homogeneo...