Method for regenerating antimony pentafluoride from spent antimony halides resulting from the fluorination of organic chlorides

Claim 1

THE METHOD OF PRODUCING ANTIMONY PENTAFLUORIDE, SUITABLE FOR USE AS A FLUORINATING AGENT TO PRODUCE HIGHLY FLUORINATED ORGANIC COMPOUNDS FROM ORGANIC CHLORINE COMPOUNDS, FROM ANTIMONY FLUOROCHLORIDES OBTAINED BY DISTILLING OFF ORGANIC FLUORINATION PRODUCTS FROM ANTIMONY FLUOROCHLORIDE BY-PRODUCTS, WHICH COMPRISES REACTING THE ANTIMONY FLUOROCHLORIDE MIXTURE WITH ELEMENTAL CHLORINE AT A TEMPERATURE BETWEEN ABOUT 15*C. AND ABOUT 70*C. UNTIL SUBSTANTIALLY NO FURTHER REACTION OF CHLORINE IS OBTAINED, INTRODUCING HYDROGEN FLUORIDE INTO THE REACTION PRODUCT AT A TEMPERATURE BETWEEN 30* AND 100*C., AND FRACTIONALLY DISTILLING ANTIMONY PENTAFLUORIDE FROM THE RESULTING REACTION MIXTURE, SAID REACTION AND DISTILLATION BEING CONDUCTED IN ALUMINUM VESSELS.

Claim 2

THE METHOD OF PRODUCING ANTIMONY PENTAFLUORIDE, SUITABLE FOR USE AS A FLUORINATING AGENT TO PRODUCE HIGHLY FLUORINATED ORGANIC COMPOUNDS FROM ORGANIC CHLORINE COMPOUNDS, FROM ANTIMONY FLUOROCHLORIDES OBTAINED BY DISTILLING OFF ORGANIC FLUORINATION PRODUCTS FROM ANTIMONY FLUOROCHLORIDE BY-PRODUCTS, WHICH COMPRISES REACTING THE ANTIMONY FLUOROCHLORIDE MIXTURE WITH ELEMENTAL CHLORINE AT A TEMPERATURE BETWEEN ABOUT 15*C. AND ABOUT 70*C. UNTIL SUBSTANTIALLY NO FURTHER REACTION OF CHLORINE IS OBTAINED, INTRODUCING HYDROGEN FLUORIDE INTO THE REACTION PRODUCT AT A TEMPERATURE BETWEEN 30* AND 100*C., AND FRACTIONALLY DISTILLING ANTIMONY PENTAFLUORIDE FROM THE RESULTING REACTION MIXTURE, SAID REACTION AND DISTILLATION BEING CONDUCTED IN ALUMINUM VESSELS.