| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for efficiently removing butenes from raw 2-fluorobutane without dehydrofluorinating 2-fluorobutane.SOLUTION: Highly purified 2-fluorobutane is obtained by going through a process comprising the steps of contacting raw 2-fluorobutane containing 5-50 wt.% of butenes with a bromination agent capable of forming a bromonium ion in the presence of at least one compound selected from the group consisting of water, and alcohols having not greater than 4 carbon atoms in an aprotic water-soluble solvent to convert the butens to compounds having a boiling point higher than that of 2-fluorobutane, thereafter recovering 2-fluorobutane from a reaction mixture, and further distilling the recovered 2-fluorobutane for purification. |
