FI933410A0 - Selektiv behandling av pappersmassa med ozon - Google Patents

Selektiv behandling av pappersmassa med ozon

Info

Publication number
FI933410A0
FI933410A0 FI933410A FI933410A FI933410A0 FI 933410 A0 FI933410 A0 FI 933410A0 FI 933410 A FI933410 A FI 933410A FI 933410 A FI933410 A FI 933410A FI 933410 A0 FI933410 A0 FI 933410A0
Authority
FI
Finland
Prior art keywords
pappersmassa
behandling
ozon
med
selective
Prior art date
Application number
FI933410A
Other languages
English (en)
Other versions
FI933410A (fi
Inventor
Michel Muguet
Jack Kogan
Original Assignee
Air Liquide
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 Air Liquide filed Critical Air Liquide
Publication of FI933410A0 publication Critical patent/FI933410A0/fi
Publication of FI933410A publication Critical patent/FI933410A/fi

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • 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
    • 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

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
FI933410A 1992-07-31 1993-07-30 Selektiv behandling av pappersmassa med ozon FI933410A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92314192A 1992-07-31 1992-07-31

Publications (2)

Publication Number Publication Date
FI933410A0 true FI933410A0 (fi) 1993-07-30
FI933410A FI933410A (fi) 1994-02-01

Family

ID=25448191

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933410A FI933410A (fi) 1992-07-31 1993-07-30 Selektiv behandling av pappersmassa med ozon

Country Status (4)

Country Link
EP (1) EP0581631A1 (fi)
JP (1) JPH06166980A (fi)
CA (1) CA2101188A1 (fi)
FI (1) FI933410A (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2708009B1 (fr) * 1993-07-19 1995-09-08 Papeteries Matussiere Forest Procédé de désencrage de papiers de récupération.
WO2013191640A1 (en) * 2012-06-21 2013-12-27 Domsjö Fabriker Ab Method of obtaining a fraction of cellulose fibers with increased solvent accessibility

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI67412C (fi) * 1977-04-27 1985-03-11 Myrens Verksted As Foerfarande foer behandling av cellulosahaltig massa
DE2908660C2 (de) * 1979-03-06 1984-02-09 J.M. Voith Gmbh, 7920 Heidenheim Verfahren und Anlage zur Rückgewinnung einer Faserstoffsuspension aus gemischtem Altpapier
FR2522030A1 (fr) * 1982-02-19 1983-08-26 Scherb Metenett Papeteries Procede de blanchiment selectif de pate a papier et papier obtenu par mise en oeuvre de ce procede
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps

Also Published As

Publication number Publication date
FI933410A (fi) 1994-02-01
EP0581631A1 (en) 1994-02-02
CA2101188A1 (en) 1994-02-01
JPH06166980A (ja) 1994-06-14

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