Main Categories Of Catalysts

There are many kinds of catalysts, which can be divided into liquid catalysts and solid catalysts according to the state; they can be divided into homogeneous catalysts and heterogeneous catalysts according to the phase state of the reaction system. Homogeneous catalysts include acids, bases, soluble transition metal compounds and peroxide catalysts. Heterogeneous catalysts include solid acid catalysts, organic base catalysts, metal catalysts, metal oxide catalysts, complex catalysts, rare earth catalysts, molecular sieve catalysts, biological catalysts, nano-catalysts, etc.; , acetalization, hydrogenation, dehydrogenation, oxidation, reduction, alkylation, isomerization and other catalysts; according to the size of the role is also divided into main catalyst and co-catalyst.