FI924751A0 - Tvaettpressmodifikation foer en syredelignifieringsmetod - Google Patents

Tvaettpressmodifikation foer en syredelignifieringsmetod

Info

Publication number
FI924751A0
FI924751A0 FI924751A FI924751A FI924751A0 FI 924751 A0 FI924751 A0 FI 924751A0 FI 924751 A FI924751 A FI 924751A FI 924751 A FI924751 A FI 924751A FI 924751 A0 FI924751 A0 FI 924751A0
Authority
FI
Finland
Prior art keywords
pulp
consistency
alkaline material
wash press
oxygen
Prior art date
Application number
FI924751A
Other languages
English (en)
Other versions
FI924751A (fi
Inventor
William H Friend
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 FI924751A0 publication Critical patent/FI924751A0/fi
Publication of FI924751A publication Critical patent/FI924751A/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
    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Television Systems (AREA)
  • Gas Separation By Absorption (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Detergent Compositions (AREA)
FI924751A 1991-10-29 1992-10-20 Tvaettpressmodifikation foer en syredelignifieringsmetod FI924751A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US78418491A 1991-10-29 1991-10-29

Publications (2)

Publication Number Publication Date
FI924751A0 true FI924751A0 (fi) 1992-10-20
FI924751A FI924751A (fi) 1993-04-30

Family

ID=25131607

Family Applications (1)

Application Number Title Priority Date Filing Date
FI924751A FI924751A (fi) 1991-10-29 1992-10-20 Tvaettpressmodifikation foer en syredelignifieringsmetod

Country Status (14)

Country Link
EP (1) EP0540091B1 (fi)
JP (1) JPH05195466A (fi)
KR (1) KR960006125B1 (fi)
CN (1) CN1080343A (fi)
AT (1) ATE147808T1 (fi)
AU (1) AU647973B2 (fi)
BR (1) BR9204173A (fi)
CA (1) CA2081398C (fi)
DE (1) DE69216757D1 (fi)
FI (1) FI924751A (fi)
NO (1) NO924080L (fi)
NZ (1) NZ244837A (fi)
SE (1) SE9203113L (fi)
ZA (1) ZA928294B (fi)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0863113A1 (en) * 1997-03-07 1998-09-09 Akzo Nobel N.V. Process for treating wastewater
US6425974B1 (en) 1997-03-07 2002-07-30 Akzo Nobel N.V. Process for treating wastewater from a bleach plant
FI122241B (fi) * 2007-06-15 2011-10-31 Andritz Oy Menetelmä massan pesun yhteydessä sellutehtaalla
US8961740B2 (en) 2010-06-10 2015-02-24 Packaging Corporation Of America Method of manufacturing pulp for corrugated medium

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR8605554A (pt) * 1985-02-14 1987-04-22 Edward Francis Elton Processo para producao de papel e aparelho para a deslignificacao alcalina de materiais fibrosos ligno-celulosicos
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
JPH02289194A (ja) * 1989-04-20 1990-11-29 Mitsubishi Paper Mills Ltd リグノセルロース物質の酸素漂白法

Also Published As

Publication number Publication date
NO924080D0 (no) 1992-10-21
FI924751A (fi) 1993-04-30
CA2081398C (en) 1997-03-25
KR960006125B1 (ko) 1996-05-09
CN1080343A (zh) 1994-01-05
KR930008238A (ko) 1993-05-21
NO924080L (no) 1993-04-30
AU2716892A (en) 1993-05-20
SE9203113L (sv) 1993-04-30
ZA928294B (en) 1993-05-18
JPH05195466A (ja) 1993-08-03
DE69216757D1 (de) 1997-02-27
AU647973B2 (en) 1994-03-31
ATE147808T1 (de) 1997-02-15
EP0540091A1 (en) 1993-05-05
CA2081398A1 (en) 1993-04-30
NZ244837A (en) 1994-10-26
BR9204173A (pt) 1993-05-04
EP0540091B1 (en) 1997-01-15
SE9203113D0 (sv) 1992-10-23

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Legal Events

Date Code Title Description
FD Application lapsed