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    • 4. 发明授权
    • Two stage butane haleic anhydride process
    • 二级丁烷黑麦酸酐工艺
    • US5360916A
    • 1994-11-01
    • US152088
    • 1993-11-15
    • Ashok S. PadiaGaylon T. Click
    • Ashok S. PadiaGaylon T. Click
    • B01J27/198C07B61/00C07C51/215C07D307/60
    • C07C51/215
    • Butane is oxidized with molecular oxygen in a dilute state by bringing a mixture of vaporized butane and air of controlled butane content into the presence of a contact vanadium-phosphorus-oxygen catalyst in a first oxidation zone under controlled pressure and temperature conditions, cooling the gaseous effluent from the first oxidation zone to a temperature in the range of 50.degree. to 300.degree. C., introducing a controlled amount of butane into the cooled gaseous effluent from the first oxidation zone, introducing said cooled butane-enriched stream into the second oxidation zone, and bringing the thus butane-enriched mixture into contact with a vanadium-phosphorus-oxygen catalyst disposed in the second zone.
    • 在受控的压力和温度条件下,通过使第一氧化区中的受控丁烷含量的蒸发的丁烷和空气的混合物存在于第一氧化区中的接触的钒 - 磷 - 氧催化剂的存在下,丁烷被氧化,冷却气态 从第一氧化区的流出物到50℃至300℃的温度,将受控量的丁烷引入来自第一氧化区的冷却的气态流出物中,将所述冷却的富含丁烷的物流引入第二氧化区 并使如此的丁烷富集的混合物与设置在第二区域中的钒 - 磷 - 氧催化剂接触。