Process for non-destructive separation of mixtures containing plastics scrap

摘要: Sink/float separation of finely divided mixtures scrap plastics and non-plastics materials, such as metal glass, by addition a liquid halogenated hydrocarbon being substantially chemically inert towards the components mixture, having essentially no swelling or dissolving effect on an intermediate density adapted to densities components, preferably chlorofluoro-substituted aliphatic hydrocarbon, 1,1,2-trichloro-1,2,2-trifluoroethane, then resulting non-sedimented sedimented fractions are separated and, if desired, subjected further treatments, while is recycled. The process non-destructive particularly useful for wire, glass cable, PVC/Cu, rubber/Cu, PEX/Al, PVC/Al, PE/Cu thereof. Addition density-adjusting additives permits various types it also possible extract recover additives, plasticizers.