PROCESS FOR THE REDUCTION OF ACIDIC CONTAMINANTES IN FLUORINATED HYDROCARBONS

摘要

The present invention relates to processes for reducing the concentration of acidic impurities HF, HCI, HBr, HI, HNO3 and H2SO4 in fluorinated hydrocarbons. The process involves: (i) contacting the fluorinated hydrocarbon with a phosphorous oxyacid salt, and (ii) recovering the fluorinated hydrocarbon having reduced concentration of, or substantially free of, said acidic contaminant, provided that said fluorinated hydrocarbon is not CF3CH2CF3 or CF3CHFCF3.