FI920048A0 - FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING. - Google Patents

FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING.

Info

Publication number
FI920048A0
FI920048A0 FI920048A FI920048A FI920048A0 FI 920048 A0 FI920048 A0 FI 920048A0 FI 920048 A FI920048 A FI 920048A FI 920048 A FI920048 A FI 920048A FI 920048 A0 FI920048 A0 FI 920048A0
Authority
FI
Finland
Prior art keywords
foerbehandlingsfoerfarande
defibrering
foer
foerbehandlingsfoerfarande foer
foer defibrering
Prior art date
Application number
FI920048A
Other languages
Finnish (fi)
Other versions
FI920048A (en
Inventor
Ulrike Tschirner
Harry Wilder
Original Assignee
Scott Paper Cpmpany
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 Scott Paper Cpmpany filed Critical Scott Paper Cpmpany
Publication of FI920048A0 publication Critical patent/FI920048A0/en
Publication of FI920048A publication Critical patent/FI920048A/en

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents
    • 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
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
FI920048A 1991-01-07 1992-01-03 FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING. FI920048A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63824491A 1991-01-07 1991-01-07

Publications (2)

Publication Number Publication Date
FI920048A0 true FI920048A0 (en) 1992-01-03
FI920048A FI920048A (en) 1992-07-08

Family

ID=24559219

Family Applications (1)

Application Number Title Priority Date Filing Date
FI920048A FI920048A (en) 1991-01-07 1992-01-03 FOERBEHANDLINGSFOERFARANDE FOER DEFIBRERING.

Country Status (9)

Country Link
EP (1) EP0494519A1 (en)
AU (1) AU660435B2 (en)
BR (1) BR9105643A (en)
CA (1) CA2057231A1 (en)
FI (1) FI920048A (en)
MX (1) MX9102773A (en)
NO (1) NO920082L (en)
NZ (1) NZ240910A (en)
PT (1) PT99980A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7001484B2 (en) 2000-05-04 2006-02-21 University Of New Brunswick Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
SE520874E (en) 2001-11-30 2013-01-15 Stfi Packforsk Ab Removal of inorganic elements from wood chips before cooking to pulp
US7384502B2 (en) * 2002-12-24 2008-06-10 Nippon Paper Industries Co., Ltd. Process for impregnating, refining, and bleaching wood chips having low bleachability to prepare mechanical pulps having high brightness
US8268122B2 (en) 2005-12-02 2012-09-18 Akzo Nobel N.V. Process of producing high-yield pulp
DE102007022754A1 (en) * 2007-05-11 2008-11-13 Voith Patent Gmbh Method for reducing the heavy metal content of lignocellulosic raw material
WO2010139589A1 (en) * 2009-06-02 2010-12-09 Akzo Nobel Chemicals International B.V. Process for producing mechanical pulp
CN101748634B (en) * 2009-12-16 2011-09-14 陕西科技大学 Improved APMP pulping method
EP2348154A1 (en) * 2010-01-22 2011-07-27 Andritz AG Method for manufacturing wooden material
CN102242512A (en) * 2011-04-30 2011-11-16 李刚荣 Environmentally-friendly paper making and pulping technique and system with high yield
US20130126109A1 (en) * 2011-11-17 2013-05-23 Buckman Laboratories International, Inc. Silicate Free Refiner Bleaching
CN103757955B (en) * 2014-01-06 2016-08-24 南京林业大学 A kind of APMP technique of improving improves the new method of pulp strength
EP2949812A1 (en) * 2014-05-27 2015-12-02 Jokiel & Ullmann Consulting GbR Mixture for preparing an impregnation liquor for the impregnation of papers and nonwoven hybrid fabrics
SE542430C2 (en) * 2017-09-19 2020-04-28 Domsjoe Fabriker Ab Removal of inorganic elements from wood chips

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3251731A (en) * 1963-02-11 1966-05-17 Andrew J Gard Bleaching of wood pulp with a sequestering agent and hydrogen peroxide
SE454186C (en) * 1985-03-13 1989-09-25 Eka Nobel Ab SET FOR PREPARATION OF CHEMICAL MECHANICAL
AU605745B2 (en) * 1985-09-20 1991-01-24 Kimberly-Clark Worldwide, Inc. Method of preparing pulp with stabilizers and peroxide prior to mechanical refining
US4849053A (en) * 1985-09-20 1989-07-18 Scott Paper Company Method for producing pulp using pre-treatment with stabilizers and defibration
US4960399A (en) * 1988-07-14 1990-10-02 Lyon Richard A Diver's utility console

Also Published As

Publication number Publication date
FI920048A (en) 1992-07-08
CA2057231A1 (en) 1992-07-08
PT99980A (en) 1993-01-29
NO920082D0 (en) 1992-01-06
EP0494519A1 (en) 1992-07-15
AU660435B2 (en) 1995-06-29
AU8960991A (en) 1992-07-09
NO920082L (en) 1992-07-08
NZ240910A (en) 1992-10-28
MX9102773A (en) 1992-07-01
BR9105643A (en) 1992-09-29

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Legal Events

Date Code Title Description
FD Application lapsed