Butene conversion method and monofluorobutane purification method
AssigneeZeon Corporation
InventorTatsuya Sugimoto
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Abstract
Provided is an industrially simple and cheap method for efficiently removing butene from crude monofluorobutane containing butene without causing substantial decomposition, transformation, or the like of the monofluorobutane. In a provided monofluorobutane purification method, crude monofluorobutane containing butene is brought into contact with trihalomethane in the presence of an alkali aqueous solution to convert the butene to a compound having a higher boiling point than the monofluorobutane, water is subsequently added to a reaction mixture obtained thereby to dissolve a produced salt, an organic layer is separated, and then the separated organic layer is purified by distillation.
Claims4
A monofluorobutane purification method comprising:
- bringing crude monofluorobutane containing butene into contact with trihalomethane in the presence of an alkali aqueous solution to convert the butene to a compound having a higher boiling point than the monofluorobutane,
- subsequently adding water to a reaction mixture obtained thereby to dissolve a produced salt,
- separating an organic layer, and
- purifying by distillation the organic layer that is separated.
Dependencies are inferred from the claim text.