Process for separating fibres from composite materials

Details Process for separating fibres from composite materials Process for separating fibres from composite materials

B - Operations, Transporting

03

B

B03B 9/06 (2006.01) B02C 23/30 (2006.01) B07B 1/24 (2006.01) B07B 9/00 (2006.01) B29B 17/02 (2006.01)

Patent

CA 2096544

2096544 9305883 PCTABS00021 A resin reinforced fibre product such as glass fibre impregnated with a thermosetting resin is treated to recover fibre by initially shredding (12) the waste, pulverising (24) the shredded waste and sieving (26, 34, 42) the pulverized waste to separate the free fibres. The remaining waste is milled (50) to produce a fine powder suitable as a filler. The pulverizing is completed without classification and a portion of the pulverized product above a nominal cut size recampaigned. Free fibres are separated by an airlift (32, 40, 44) during the sieving process.

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