Process for producing fluorine-containing olefin

A process for producing fluorine-containing olefins represented by Formula (7):

• CF3CA=CHB, wherein one of A and B is F or Cl, and the other is H,
• the process comprising reacting a chlorine-containing compound and anhydrous hydrogen fluoride in the presence of oxidative gas and a fluorination catalyst,
• the chlorine-containing compound being at least one compound selected from the group consisting of:
• a chlorine-containing alkane represented by Formula (1):
• CX3CClYCH2Z, wherein X is independently F or Cl, Y is H or F, when Y is H, Z is Cl or F, and when Y is F, Z is H;
• a chlorine-containing alkane represented by Formula (2):
• CX3CH2CHX2, wherein X is independently F or Cl, with the proviso that at least one of X is Cl;
• a chlorine-containing alkene represented by Formula (3):
• CX3CCl═CH2, wherein X is independently F or Cl;
• a chlorine-containing alkene represented by Formula (4):
• CX3CH═CHX, wherein X is independently F or Cl, with the proviso that at least one of X is Cl;
• a chlorine-containing alkene represented by Formula (5):
• CH2XCCl═CX2, wherein X is independently F or Cl;
• and
• a chlorine-containing alkene represented by Formula (6):
• CHX2CH═CX2, wherein X is independently F or Cl;
• wherein the fluorination catalyst is a catalyst in which at least one metal element M selected from the group consisting of Group VIII and Group IX is present together with chromium.