Patent ID: 6180840
Filing Date: 2001-01-30
Classification: C07C

Abstract:
A method of purifying 1,1,1,2,2-pentafluoroethane, in which 1-chloro-1,1,2,2,2-pentafluoroethane is removed by being converted to 1,1,1,2,2-pentafluoroethane by making a gas mixture of 1,1,1,2,2-pentafluoroethane and 1-chloro-1,1,2,2,2-pentafluoroethane, in which the content of 1-chloro-1,1,2,2,2-pentafluoroethane is not more than 15 vol % of the total amount of these pentafluoroethane, react with hydrogen in a vapor phase in the presence of a catalyst.