Useful azeotrope and azeotrope-like composition to produce a halo-olefin

The present invention, 2-chloro-3,3,3-trifluoropropene (HCFO-1233xf), HF, and 1,1,2,3-tetrachloropropene (TCP) or 1,1,1,2,2 - related ternary azeotrope and azeotrope-like composition comprising any of pentafluoropropane (HFC-245cb). The present invention also relates to binary azeotrope of 2,3,3,3-tetrachloro-propene and HF. The composition of such azeotropic and azeotrope-like are useful as intermediates in the preparation of 2,3,3,3-tetrafluoropropene (HFO-1234yf). .BACKGROUND