FI923585A - Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa - Google Patents

Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa Download PDF

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Publication number
FI923585A
FI923585A FI923585A FI923585A FI923585A FI 923585 A FI923585 A FI 923585A FI 923585 A FI923585 A FI 923585A FI 923585 A FI923585 A FI 923585A FI 923585 A FI923585 A FI 923585A
Authority
FI
Finland
Prior art keywords
tvaettpress
alkalitillsatsprocess
anvaendning
foer
mass
Prior art date
Application number
FI923585A
Other languages
English (en)
Finnish (fi)
Other versions
FI923585A0 (fi
Inventor
James C Joseph
Christopher H Matthews
Stuart T Terrett
Spencer W Eachus
Bruce F Griggs
Original Assignee
Union Camp Patent Holding
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 Union Camp Patent Holding filed Critical Union Camp Patent Holding
Publication of FI923585A0 publication Critical patent/FI923585A0/fi
Publication of FI923585A publication Critical patent/FI923585A/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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI923585A 1991-08-14 1992-08-11 Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa FI923585A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US74822291A 1991-08-14 1991-08-14

Publications (2)

Publication Number Publication Date
FI923585A0 FI923585A0 (fi) 1992-08-11
FI923585A true FI923585A (fi) 1993-02-15

Family

ID=25008524

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923585A FI923585A (fi) 1991-08-14 1992-08-11 Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa

Country Status (11)

Country Link
EP (1) EP0530881A1 (no)
JP (1) JPH0726350B2 (no)
KR (1) KR950013196B1 (no)
CN (1) CN1070969A (no)
AU (1) AU647950B2 (no)
BR (1) BR9203170A (no)
CA (1) CA2075875A1 (no)
FI (1) FI923585A (no)
NO (1) NO923163L (no)
SE (1) SE9202338L (no)
ZA (1) ZA926092B (no)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2311718A1 (en) * 1999-06-14 2000-12-14 Praxair Technology, Inc. Oxygen delignification of lignocellulosic material
FI122241B (fi) * 2007-06-15 2011-10-31 Andritz Oy Menetelmä massan pesun yhteydessä sellutehtaalla
US9932709B2 (en) 2013-03-15 2018-04-03 Ecolab Usa Inc. Processes and compositions for brightness improvement in paper production
FI20115754A0 (fi) * 2011-03-22 2011-07-15 Andritz Oy Menetelmä ja järjestely kemiallisen massan käsittelemiseksi
BR112015018492A2 (pt) * 2013-02-08 2017-07-18 Gp Cellulose Gmbh fibra kraft e método para fazer polpa kraft oxidada
WO2018022427A1 (en) * 2016-07-27 2018-02-01 Ecolab USA, Inc. Method and compositions for oxygen delignification of chemical pulp
SE544255C2 (en) * 2020-09-03 2022-03-15 Valmet Oy System for producing cellulose pulp and method for controlling such a system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0211945A4 (en) * 1985-02-14 1987-07-06 Edward Francis Elton METHOD AND DEVICE FOR ALKALINE DELIGNIFICATION OF LIGNOCELLULOSE FIBER MATERIAL.
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
US5173153A (en) * 1991-01-03 1992-12-22 Union Camp Patent Holding, Inc. Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5085734A (en) * 1989-02-15 1992-02-04 Union Camp Patent Holding, Inc. Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
CA2069447C (en) * 1991-04-18 1996-08-27 Bruce F. Griggs Pulp alkali addition process for high consistency oxygen delignification

Also Published As

Publication number Publication date
EP0530881A1 (en) 1993-03-10
FI923585A0 (fi) 1992-08-11
BR9203170A (pt) 1993-03-30
SE9202338D0 (sv) 1992-08-12
ZA926092B (en) 1993-03-02
CA2075875A1 (en) 1993-02-15
JPH05195461A (ja) 1993-08-03
AU2095492A (en) 1993-02-25
NO923163L (no) 1993-02-15
JPH0726350B2 (ja) 1995-03-22
CN1070969A (zh) 1993-04-14
KR930004578A (ko) 1993-03-22
SE9202338L (sv) 1993-02-15
NO923163D0 (no) 1992-08-13
KR950013196B1 (ko) 1995-10-25
AU647950B2 (en) 1994-03-31

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