WO2012116907A3 - Entfernung von verunreinigungen bei der altpapieraufbereitung - Google Patents

Entfernung von verunreinigungen bei der altpapieraufbereitung Download PDF

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Publication number
WO2012116907A3
WO2012116907A3 PCT/EP2012/052922 EP2012052922W WO2012116907A3 WO 2012116907 A3 WO2012116907 A3 WO 2012116907A3 EP 2012052922 W EP2012052922 W EP 2012052922W WO 2012116907 A3 WO2012116907 A3 WO 2012116907A3
Authority
WO
WIPO (PCT)
Prior art keywords
impurities
waste paper
paper processing
removal
liquid
Prior art date
Application number
PCT/EP2012/052922
Other languages
English (en)
French (fr)
Other versions
WO2012116907A2 (de
Inventor
Hermann Schwarz
Jochen SCHÄFER
Original Assignee
Siemens Aktiengesellschaft
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of WO2012116907A2 publication Critical patent/WO2012116907A2/de
Publication of WO2012116907A3 publication Critical patent/WO2012116907A3/de

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/022—Chemicals therefor
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • D21C5/025—De-inking
    • D21C5/027—Chemicals therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Extraction Or Liquid Replacement (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Entfernung von Verunreinigungen bei der Aufbereitung von Altpapier. Um gegenüber den bekannten Lösungen den Abtrenngrad der Verunreinigungen zu erhöhen, wird vorgeschlagen, dass die Verunreinigungen von den Papierfasern in flüssigem oder überkritischem Kohlendioxid oder in einer Mischung aus flüssigem oder überkritischem Kohlendioxid und zumindest einem organischen Lösungsmittel abgetrennt werden.
PCT/EP2012/052922 2011-02-28 2012-02-21 Entfernung von verunreinigungen bei der altpapieraufbereitung WO2012116907A2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011004808.1 2011-02-28
DE201110004808 DE102011004808B4 (de) 2011-02-28 2011-02-28 Entfernung von Mineralölanteilen bei der Altpapieraufbereitung

Publications (2)

Publication Number Publication Date
WO2012116907A2 WO2012116907A2 (de) 2012-09-07
WO2012116907A3 true WO2012116907A3 (de) 2012-11-08

Family

ID=45787172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/052922 WO2012116907A2 (de) 2011-02-28 2012-02-21 Entfernung von verunreinigungen bei der altpapieraufbereitung

Country Status (2)

Country Link
DE (1) DE102011004808B4 (de)
WO (1) WO2012116907A2 (de)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213660A (en) * 1990-10-12 1993-05-25 Kimberly-Clark Corporation Secondary fiber cellulose product with reduced levels of polychlorinated dibenzodioxins and polychlorinated dibenzofurans

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5074958A (en) * 1990-10-12 1991-12-24 Kimberly-Clark Corporation Method for removing polychlorinated dibenzodioxins and polychlorinated dibenzofurans and stickies from secondary fibers using supercritical propane solvent extraction
DE102006042429B3 (de) * 2006-09-09 2008-01-24 Messer Austria Gmbh Verfahren zum Entfernen von Kleberresten bei der Wiederverwertung von Altpapier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5213660A (en) * 1990-10-12 1993-05-25 Kimberly-Clark Corporation Secondary fiber cellulose product with reduced levels of polychlorinated dibenzodioxins and polychlorinated dibenzofurans

Also Published As

Publication number Publication date
DE102011004808B4 (de) 2014-03-20
WO2012116907A2 (de) 2012-09-07
DE102011004808A1 (de) 2012-08-30

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