US7183448B2 - Azeotropic Composition, Comprising 1, 1, 1, 3,3-Pentafluoropropane and 1, 1, 1-Trifluoro-3-Chloro-2-Propene, Method of Separation and Purification of the Same, and Process for Producing 1, 1, 1,3,3-Pentafloropropane and 1, 1, 1-Trifluoro-3-Chloro-2-Propene