METHOD OF OBTAINING OLEFIN OXIDE Russian patent published in 2009 - IPC C07D301/10 C07C29/10 C07C41/03 C07C213/04 

FIELD: chemistry, pharmaceutics.

SUBSTANCE: invention relates to method of obtaining olefin oxide including interaction of initial mixture, which contains olefin and oxygen, in presence of silver-containing catalyst. According to claimed method, before catalyst reaches late stage of ageing, temperature of reaction is supported higher than 255°C, and content of olefin in initial mixture is supported within the range from higher than 25 mol % to at most 80 mol %, relative to general initial mixture, said reaction temperature and said olefin content being supported, at least, during period which is sufficient to obtain olefin oxide in amount 1000 kmole of olefin oxide per m³ of catalyst layer. "Late stage of ageing" of catalyst is determined by obtaining total olefin oxide in amount, at least, 10000 kmole of olefin oxide per m³ of catalyst layer. Invention also relates to method of obtaining 1,2-diole, ether, 1,2-diole or alkanolamine.

EFFECT: increase of functional performance of silver-containing catalyst.

10 cl, 3 tbl, 10 ex