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US 8,552,239 B2Granted
Olefin production process
AssigneeMitsui Chemicals, Inc.
InventorsTsuneyuki Ohkubo, Kenji Fujiwara, Terunori Fujita, Masayasu Ishibashi
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AssigneeMitsui Chemicals, Inc.
InventorsTsuneyuki Ohkubo, Kenji Fujiwara, Terunori Fujita, Masayasu Ishibashi
Estimating the term…
A novel olefin production process is provided which can be established as an industrial and practical process capable of producing olefins by directly reacting a ketone and hydrogen in a single reaction step. In particular, a novel olefin production process is provided in which propylene is obtained with high selectivity by directly reacting acetone and hydrogen. The olefin production process according to the present invention includes reacting a ketone and hydrogen in the presence of at least one dehydration catalyst and a silver-containing catalyst, and the at least one dehydration catalyst is selected from metal oxide catalysts containing a Group 6 element, zeolites, aluminas and heteropoly acid salts in which part or all the protons in heteropoly acids are exchanged with metal cations.
An olefin production process comprising reacting a ketone and hydrogen in the presence of at least one dehydration catalyst and an indium-silver-containing catalyst, the at least one dehydration catalyst being selected from metal oxide catalysts containing at least one Group 6 (VIB) element, zeolites, aluminas and heteropoly acid salts in which part or all the protons in heteropoly acids are exchanged with metal cations.
Dependencies are inferred from the claim text.