RECYCLING FIBRES FROM POLYMER COMPOSITES

A method of obtaining fibres from a polymer composite comprising a polymer matrix and fibres, the fibres having a length L(m) of less than 0.04m, the method comprising the steps of : introducing the polymer composite into a fluidised bed at a feed rate F (kgm-3s-1); heating the polymer composite in...

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Bibliographische Detailangaben
Hauptverfasser:	RUDD, CHRISTOPHER DOUGLAS, PICKERING, STEPHEN JOHN, JIANG, GUOZHAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS BASED THEREON DISPOSAL OF SOLID WASTE GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECLAMATION OF CONTAMINED SOIL SOIL RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	A method of obtaining fibres from a polymer composite comprising a polymer matrix and fibres, the fibres having a length L(m) of less than 0.04m, the method comprising the steps of : introducing the polymer composite into a fluidised bed at a feed rate F (kgm-3s-1); heating the polymer composite in the fluidised bed so that the polymer matrix substantially releases the fibres from the polymer composite; and elutriating the released fibre from the fluidised bed at a fluidising velocity V (m/s) of less than 2 m/s; the feed rate F being selected from the range : F1 2 wherein F1 is 0.0118 - 0.36L; and F2 is 0.0228 - 0.56L. L'invention concerne un procédé permettant d'obtenir des fibres issues d'un composite polymère contenant une matrice polymère et des fibres, ces fibres présentant une longueur L(m) inférieure à 0,04m. Le procédé selon l'invention consiste : à introduire le composite polymère dans un luit fluidisé à une vitesse d'alimentation F (kgm-3s-1) ; à chauffer le composite polymère dans le lit fluidisé de sorte que la matrice polymère libère sensiblement les fibres du composite polymère ; et à élutrier les fibres libérées du lit fluidisé à une vitesse de fluidisation V (m/s) inférieure à 2 m/s ; la vitesse d'alimentation F étant sélectionnée sur la plage suivante : F1 2, F1 représentant 0,0118 - 0,36L ; et F2 représentant 0,0228 - 0,56L.