Patent ID: 7282120
Filing Date: 2007-10-16
Classification: C07C

Abstract:
1. A process for producing purified 1,1,1,3,3-pentafluorobutane from 1,1,1,3,3-pentafluorobutane that has been contaminated by unsaturated compounds comprising C 4 CIF 3 H 4 by chlorinating the unsaturated contaminating compounds, said process comprising the acts of: contacting the contaminated 1,1,1,3,3-pentafluorobutane with elemental chlorine and irradiating the 1,1,1,3,3-pentafluorobutane with UV light having a wavelength of λ≧280 nm in order to produce purified 1,1,1,3,3-pentafluorobutane.