C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
241/26, 53/346
C22B 1/00 (2006.01) B03B 9/06 (2006.01) B29B 17/02 (2006.01) H01B 15/00 (2006.01)
Patent
CA 1099244
ABSTRACT OF THE DISCLOSURE A process and apparatus for the recovery, for re-use, of metallic conductors such as copper and aluminum from insul- ated cable, particularly scrap telephone cable, the process utilizing a unique combination of mechanical and chemical operations protective of both the recovered metals and the environment. The invention has particular utility in the pro- cessing of cable of the type which includes as a filler a petro- leum gel or similar material employed as a moisture barrier. It is an important feature of the invention that this petroleum jelly or petrolatum can be effectively removed in a regulated solvent extraction step, the specific process being highly effective to remove such organic material essentially quanti- tatively from pre-chopped scrap material. In a preferred embodiment of the invention, the process is a continuous one, making feasible efficient, economical recovery of valuable con- ductors in an unoxidized state, and petrolatum filler.
294273
Lissner Corporation
Smart & Biggar
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