| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to olefin hydroxidation catalysts. Proposed catalytic composition for production of olefin oxide by olefin hydroxidation comprises gold nanoparticles deposited on particles of nanoporous titanosilicate carrier. Note here that said catalyst is obtained by method including deposition of cluster complex gold-ligand on nanoporous titanosilicate carrier at minus 100C to 300C to produce catalyst precursor, and heating at not over 50-800C and/or chemical treatment of catalyst precursor for 15 min to 5 h to form catalyst. Invention covers also the method of producing olefin oxide comprising bringing olefin with, at least, three carbon atoms in contact with oxygen in the presence of hydrogen and catalyst with above described composition. Note here that said contact is realized at 160C and lower that 300C and pressure varying from atmospheric pressure to 3549 kPa (500 psi). It covers also catalyst precursor composition including cluster complex ligand-gold deposited on particles of nanoporous titanosilicate carrier. ^ EFFECT: high catalytic activity, longer life and higher efficiency. ^ 16 cl, 15 tbl, 19 dwg, 24 ex |
