каталізатори

Catalytic ability of tungsten compounds in the reaction of hydroperoxide epoxidation of 1- octene and tert-butyl hydroperoxide decomposition was investigated. It is shown that the nature of ligand has significant effect on the catalytic activity of tungsten compounds in these reactions. It is established that boride and silicide of tungsten are the best choice for epoxidation reaction, whereas tungsten carbide exhibits poor activity. Tungsten boride is also the most active in the hydroxide decomposition reaction.

The influenceof vanadium-containing compounds as catalysts on the reaction of 1-octene epoxidation by tert-butyl hydroperoxide and the decomposition of this hydroperoxide was investigated. It is shown that the catalytic activity of vanadium compounds depends on catalyst ligand nature. It is established that vanadium boride and carbide are the most active catalysts for hydroperoxide epoxidation, while V2O5 is the most active catalyst oftert-butyl hydroxide decomposition. The highest selectivity of 1,2-epoxyoctene formation is observed when VC is used as a catalyst.