Recovery of paraffin(s) and/or microwaxes from used plastics

Recovery of paraffins and/or microwaxes from used plastics comprises melting the plastics in an extruder by applying frictional energy after removing metallic, (in)organic and mineral impurities, heating to 350-390 deg C, further heating by friction and external heat to 430 deg C and firing the melt...

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Bibliographische Detailangaben
Hauptverfasser:	SALZMANN, JOACHIM.-OEK., 06667 BORAU, DE, KURTZE, GUENTER., 06679 MUSCHWITZ, DE, GEBAUER, MANFRED.NAT., 06124 HALLE, DE
Format:	Patent
Sprache:	eng ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT COMPOSITIONS BASED THEREON CRACKING HYDROCARBON OILS FUELS GENERAL PROCESSES OF COMPOUNDING GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LUBRICANTS METALLURGY MINERAL WAXES ORGANIC MACROMOLECULAR COMPOUNDS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE 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 WORKING-UP
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Beschreibung
Zusammenfassung:	Recovery of paraffins and/or microwaxes from used plastics comprises melting the plastics in an extruder by applying frictional energy after removing metallic, (in)organic and mineral impurities, heating to 350-390 deg C, further heating by friction and external heat to 430 deg C and firing the melt after passing a filter system under a pressure of 3-600 bar against an impact body heated to 400-550 deg C and subjecting to flash vaporisation at normal pressure or in a vacuum.