| 摘要 |
PURPOSE: A manufacturing method of 1,3-butadiene is provided to obtain 1,3-butadiene with high selectivity through a dehydration of 2,3-butandiol, and to able to manufacture 1,3-butadiene at low temperature with long term stability. CONSTITUTION: A manufacturing method of 1,3-butadiene comprises a step of manufacturing 1,3-butadiene from 2,3-butanediol under the presence of a hydroxyapatite-alumina catalyst. The catalyst contains 5-40 weight% of alumina and 60-95 weight% of hydroxyapatite. The 1,3-butadiene is manufactured through a dehydration of the 2,3-butandiols. The dehydration is conducted under conditions of a reaction temperature of 320-430°C, a reaction pressure of 1-6 atm, and a liquid hour space velocity of 0.3-1.5 h^(-1).
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