| abstract |
A reductive dimerization process of 1,1,1-trifluoro, 2,2,2-trichloroethanen(CFC-113a) with hydrogen, with formation ofn1,1,1,4,4,4-hexafluoro-2,2,3,3-tetrachlorobutane andn1,1,1,4,4,4-hexafluoro-2,2-dichlorobutene, and mixtures thereof,nwherein the catalyst is constituted by metal rutheniumnsupported on graphitized carbon obtainable by treatment of thencarbon at temperatures higher than 2000°C, in inert gas, ornaluminum fluoride having an high surface area. |