| 摘要 |
PROBLEM TO BE SOLVED: To provide a producing method of fluoroolefin such as HFO-1234yf having an improved invert ratio and selectivity coefficient, and being effective for a longer term.SOLUTION: A producing method of fluoroolefin is a fluorination method comprises reaction steps and recovery step alternately, and the reaction steps includes producing fluoroolefin such as 2,3,3,3-tetrafluoro-1-propene (HFO-1234yf) by gas phase reaction of chloroolefin such as 2-chloro-3,3,3-trifluoro-1-propene (HFCO-1233xf) and hydrogen fluoride in the presence of fluorination catalyst, and the recovery step includes contacting the fluorination catalyst with a gas flow containing oxidizer such as oxygen gas.SELECTED DRAWING: None |
