| abstract |
PCT No. PCT/US92/01607 Sec. 371 Date Dec. 28, 1994 Sec. 102(e) Date Dec. 28, 1994 PCT Filed Mar. 10, 1992 PCT Pub. No. WO93/17988 PCT Pub. Date Sep. 16, 1993.A process is disclosed for purifying a hexafluoroethane product containing CClF3 and/or CHF3 impurities which comprises the step of contacting the product with a sorbent for said impurities selected from activated carbons and inorganic (i.e. zeolite) molecular sieves. Also disclosed is an improvement to a process for producing CF3CF3 wherein CClF3 and/or CHF3 impurities are removed from the product utilizing said sorbents. |