Method for recovering pvc and urethane foam from commingled...

B - Operations – Transporting – 29 – B

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B29B 17/02 (2006.01) B02C 23/08 (2006.01) B03B 9/06 (2006.01)

Patent

CA 2106712

METHOD FOR RECOVERING PVC AND URETHANE FOAM FROM COMMINGLED TRIM WASTE USING ELUTRIATORS ABSTRACT OF THE DISCLOSURE A method and apparatus for reclaiming urethane foam and polyvinyl chloride plastic material from composite plastic articles (18). The articles pass through a granulator (23) and pass through a first elutriator (36) where two streams of particles are formed. A denser stream passes to a second elutriator (50) where at its exit (56) substantially pure polyvinyl chloride particles are passed into bin (58). A less dense stream of particles pass to a screen separator (C4) where intermediately sized particles are sorted onto conveyor (74) which passes substantially pure urethane foam to baler (76).

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