Process for the preparation of 1,1,1,3,3,3-hexafluoropropane and at least one of 1,1,1,2,3,3-hexafluoropropane and 1,1,1,2,3,3,3-heptafluoropropane 1,1,1,3,3,3-hexafluoropropane propane (HFC-236fa) and at least one 1,1,1,2,3,3- hexafluoro (HFC-236ea), and 1, 1 , a method for…