Patent ID: 6900362

Claim:
A process for producing HFC-227ea, comprising: a.) reacting HFP and HF in the vapor phase in a reaction zone in the presence of HFC-227ea and a fluorination catalyst to form a reaction mixture, wherein said HFP, HF and HFC-227ea are added to said reaction zone in a mole ratio from about 2:1 to about 3:1 HF:HFP and a mole ratio of about 5:1 HFC-227ea:HFP, b.) feeding said reaction mixture to a distillation column to form a distillation column overhead stream comprising HF and HFC-227ea, and a distillation column bottom stream comprising HFC-227ea substantially free of HF, c.) recycling at least a portion of said distillation column overhead stream to said reaction zone, and d.) recovering said distillation column bottom stream comprising HFC-227ea substantially free of HF.