PROCESS FOR RECOVERING MONOMERIC UNITS OF A NYLON FROM WHOLE CARPET

The invention relates to a process for recovering monomeric units of a nylon from carpet material, said carpet material comprising fibres containing said nylon bound to a backing containing one or more non-nylon components, the carpet material containing between 15 and 35 wt.% of said nylon, which p...

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Bibliographische Detailangaben
Hauptverfasser:	COURAGE, ANTONIUS, JOHANNES, FRANCISCUS, MARIE, RAETS, LEONARDUS, JOSEPH, GERARDUS, HOUBEN, MARCO, JOHAN, ARNOLD, MERTENS, MATHIEU, HUBERTUS, MARIE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMISTRY HETEROCYCLIC COMPOUNDS MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAKING GRANULES OR PREFORMS METALLURGY ORGANIC CHEMISTRY PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATICTABLES OR JIGS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a process for recovering monomeric units of a nylon from carpet material, said carpet material comprising fibres containing said nylon bound to a backing containing one or more non-nylon components, the carpet material containing between 15 and 35 wt.% of said nylon, which process comprises the steps of: a) mechanically separating the carpet material into an enriched carpet mixture containing between 35 and 55 wt.% of said nylon and into a depleted carpet mixture having a lower content of said nylon than the carpet material; b) exposing the enriched carpet mixture to conditions at which depolymerisation of said nylon is effected. L'invention concerne un procédé de récupération d'unités monomériques d'un nylon à partir d'une matière de tapis, cette matière de tapis comprenant des fibres contenant ce nylon lié à un support renfermant un ou plusieurs composants de nylon, ladite matière de tapis contenant entre 15 et 35 % en poids dudit nylon. Ce procédé consiste (a) à séparer mécaniquement la matière de tapis en un mélange de tapis enrichi contenant entre 35 et 55 % en poids dudit nylon et en un mélange de tapis appauvri présentant une concentration en nylon inférieure à celle de la matière de tapis, et (b) à exposer ledit mélange de tapis enrichi à des conditions permettant la dépolymérisation de ce nylon.