... and ammonium hydroxycarbonate NH 4 AlCO 3 (OH) 2 and mixtures of hydrated yttrium and aluminumoxides. Calcining a mixture of hydrated oxides leads to the formation of both Y 3 Al 5 O 12 and ...
For the synthesis of mullite 3Al 2 O 3 & middot; 2SiO 2 , hydratedaluminumoxide (GOA) and silicon dioxide SiO 2 obtained by sulfuric acid treatment of nepheline, as well as commercial finely dispersed ...