Method for sorting plastics from a particle mixture composed of different plastics

A method for separating plastic particles by types from a particle mixture of plastics of different types by flotation. The plastic particles are initially processed by a type-dependent change in their wetting behavior in such a manner that the various types can be floated individually out of the pa...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	L+E,UML O+EE HR, KARSTEN, ST+E,UML U+EE CKRAD, BJ+E,UML O+EE RN
Format:	Patent
Sprache:	eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT DIFFERENTIAL SEDIMENTATION FLOTATION 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 MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLIDMATERIALS OR FLUIDS MAKING GRANULES OR PREFORMS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	A method for separating plastic particles by types from a particle mixture of plastics of different types by flotation. The plastic particles are initially processed by a type-dependent change in their wetting behavior in such a manner that the various types can be floated individually out of the particle mixture. This surface treatment of the plastic particles takes place prior to flotation and outside of the flotation device in a physically dry manner by plasma processing of the particle mixture followed by storage for a predetermined time period. Storage results in a material-specific classification wetting behavior.