FI932848A - Foerfarande foer blekning av pappersmassa - Google Patents

Foerfarande foer blekning av pappersmassa Download PDF

Info

Publication number
FI932848A
FI932848A FI932848A FI932848A FI932848A FI 932848 A FI932848 A FI 932848A FI 932848 A FI932848 A FI 932848A FI 932848 A FI932848 A FI 932848A FI 932848 A FI932848 A FI 932848A
Authority
FI
Finland
Prior art keywords
pappersmassa
foerfarande foer
borohydride
sodium
blekning
Prior art date
Application number
FI932848A
Other languages
English (en)
Other versions
FI932848A0 (fi
Inventor
Patrick Meyers
David L-K Wang
Original Assignee
Morton Int Inc
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 Morton Int Inc filed Critical Morton Int Inc
Publication of FI932848A0 publication Critical patent/FI932848A0/fi
Publication of FI932848A publication Critical patent/FI932848A/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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Preparing Plates And Mask In Photomechanical Process (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
FI932848A 1992-06-18 1993-06-18 Foerfarande foer blekning av pappersmassa FI932848A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9212926A GB9212926D0 (en) 1992-06-18 1992-06-18 Method of bleaching paper pulp

Publications (2)

Publication Number Publication Date
FI932848A0 FI932848A0 (fi) 1993-06-18
FI932848A true FI932848A (fi) 1993-12-19

Family

ID=10717309

Family Applications (1)

Application Number Title Priority Date Filing Date
FI932848A FI932848A (fi) 1992-06-18 1993-06-18 Foerfarande foer blekning av pappersmassa

Country Status (10)

Country Link
US (1) US5562803A (fi)
EP (1) EP0587270B1 (fi)
JP (1) JP2948717B2 (fi)
AT (1) ATE160189T1 (fi)
CA (1) CA2098661C (fi)
DE (1) DE69315146T2 (fi)
FI (1) FI932848A (fi)
GB (1) GB9212926D0 (fi)
NO (1) NO301343B1 (fi)
ZA (1) ZA933906B (fi)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5582681A (en) 1994-06-29 1996-12-10 Kimberly-Clark Corporation Production of soft paper products from old newspaper
US6001218A (en) 1994-06-29 1999-12-14 Kimberly-Clark Worldwide, Inc. Production of soft paper products from old newspaper
US6074527A (en) 1994-06-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Production of soft paper products from coarse cellulosic fibers
US6296736B1 (en) 1997-10-30 2001-10-02 Kimberly-Clark Worldwide, Inc. Process for modifying pulp from recycled newspapers
US6224548B1 (en) * 1998-05-26 2001-05-01 Ineedmd.Com, Inc. Tele-diagnostic device
US6387210B1 (en) 1998-09-30 2002-05-14 Kimberly-Clark Worldwide, Inc. Method of making sanitary paper product from coarse fibers
US7306698B2 (en) * 2001-03-20 2007-12-11 Biopulping International Method for producing pulp
US7074299B2 (en) * 2002-05-01 2006-07-11 Fort James Corporation Process for using a phloroglucinol color delta to control blending, deinking and bleaching of groundwood-containing secondary pulp
US20040000383A1 (en) * 2002-05-01 2004-01-01 Henry Chou Process for facilitating the use of high lignin containing waste paper in the manufacture of paper products
US20040211533A1 (en) * 2003-04-28 2004-10-28 Qiang Huang Method for bleaching and color stripping recycled fibers
CA2522144A1 (en) * 2004-10-15 2006-04-15 Rohm And Haas Company Method for bleaching wood fibers
FI121114B (fi) * 2007-05-04 2010-07-15 Kemira Oyj Ditioniitin valmistusmenetelmä
US9932709B2 (en) * 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
KR20130062262A (ko) * 2010-04-14 2013-06-12 에프. 호프만-라 로슈 아게 장기간 생성 세포의 선별 방법
CN113174771A (zh) * 2021-04-29 2021-07-27 玖龙纸业（东莞）有限公司 一种涂布白板纸浆料的三元漂白方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE638828A (fi) * 1962-10-18
FR1401122A (fr) * 1963-08-27 1965-05-28 Metal Hydrides Inc Procédé de blanchiment de la pulpe de bois
US3284283A (en) * 1964-02-17 1966-11-08 Fmc Corp Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride
NL6413774A (fi) * 1964-11-26 1966-05-27
SU536271A1 (ru) * 1975-04-01 1976-11-25 Пермский Филиал Всесоюзного Научно-Производственного Объединения Целлюлозно-Бумажной Промышленности Способ отбелки волокнистой массы
SE7806928L (sv) * 1977-06-17 1978-12-18 Ventron Corp Reduktionsforfarande med ditionit och natriumborhydrid
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
DE3012184A1 (de) * 1980-03-28 1981-10-08 Siemens AG, 1000 Berlin und 8000 München Lichtwellenleiterverzweigung
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
ATE39714T1 (de) * 1985-02-15 1989-01-15 Kamyr Ab Mehrstufige peroxidbleiche einer mechanischen pulpe.
FR2639371B1 (fr) * 1988-11-24 1995-04-14 Atochem Procede de blanchiment de pates desencrees
DE4115575A1 (de) * 1991-05-13 1992-11-19 Brueggemann L Kg Bleichmittel
JP2827195B2 (ja) * 1991-11-13 1998-11-18 日本電気株式会社 半導体記憶装置
GB9214041D0 (en) * 1992-07-02 1992-08-12 Morton Int Inc Process for de-inking recycled paper pulp

Also Published As

Publication number Publication date
GB9212926D0 (en) 1992-07-29
ZA933906B (en) 1994-10-07
EP0587270B1 (en) 1997-11-12
DE69315146D1 (de) 1997-12-18
ATE160189T1 (de) 1997-11-15
CA2098661C (en) 1997-06-03
JP2948717B2 (ja) 1999-09-13
CA2098661A1 (en) 1993-12-19
DE69315146T2 (de) 1998-03-05
US5562803A (en) 1996-10-08
EP0587270A1 (en) 1994-03-16
NO932200L (no) 1993-12-20
NO932200D0 (no) 1993-06-15
JPH0657671A (ja) 1994-03-01
FI932848A0 (fi) 1993-06-18
NO301343B1 (no) 1997-10-13

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Legal Events

Date Code Title Description
GB Transfer or assigment of application

Owner name: MORTON INTERNATIONAL INC.