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AU647973B2 - Wash press modification for oxygen delignification process - Google Patents

Wash press modification for oxygen delignification process Download PDF

Info

Publication number
AU647973B2
AU647973B2 AU27168/92A AU2716892A AU647973B2 AU 647973 B2 AU647973 B2 AU 647973B2 AU 27168/92 A AU27168/92 A AU 27168/92A AU 2716892 A AU2716892 A AU 2716892A AU 647973 B2 AU647973 B2 AU 647973B2
Authority
AU
Australia
Prior art keywords
pulp
alkaline material
weight
percent
consistency
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
AU27168/92A
Other languages
English (en)
Other versions
AU2716892A (en
Inventor
Spencer W. Eachus
William H. Friend
Bruce F Griggs
Stuart T. Terrett
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Union Camp Patent Holding Inc
Original Assignee
Union Camp Patent Holding 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 Union Camp Patent Holding Inc filed Critical Union Camp Patent Holding Inc
Publication of AU2716892A publication Critical patent/AU2716892A/en
Application granted granted Critical
Publication of AU647973B2 publication Critical patent/AU647973B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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)
  • Detergent Compositions (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
AU27168/92A 1991-10-29 1992-10-21 Wash press modification for oxygen delignification process Ceased AU647973B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US78418491A 1991-10-29 1991-10-29
US784184 1991-10-29

Publications (2)

Publication Number Publication Date
AU2716892A AU2716892A (en) 1993-05-20
AU647973B2 true AU647973B2 (en) 1994-03-31

Family

ID=25131607

Family Applications (1)

Application Number Title Priority Date Filing Date
AU27168/92A Ceased AU647973B2 (en) 1991-10-29 1992-10-21 Wash press modification for oxygen delignification process

Country Status (14)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6641498A (en) 1997-03-07 1998-09-22 Akzo Nobel N.V. Process for treating wastewater
EP0863113A1 (en) * 1997-03-07 1998-09-09 Akzo Nobel N.V. Process for treating wastewater
FI122241B (fi) 2007-06-15 2011-10-31 Andritz Oy Menetelmä massan pesun yhteydessä sellutehtaalla
EP2910678B1 (en) 2010-06-10 2017-07-26 Packaging Corporation Of America Method of manufacturing pulp for corrugated medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Family Cites Families (3)

* 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
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Also Published As

Publication number Publication date
ATE147808T1 (de) 1997-02-15
SE9203113D0 (sv) 1992-10-23
ZA928294B (en) 1993-05-18
CA2081398C (en) 1997-03-25
FI924751A0 (fi) 1992-10-20
AU2716892A (en) 1993-05-20
JPH05195466A (ja) 1993-08-03
BR9204173A (pt) 1993-05-04
CA2081398A1 (en) 1993-04-30
FI924751A (fi) 1993-04-30
KR930008238A (ko) 1993-05-21
SE9203113L (sv) 1993-04-30
DE69216757D1 (de) 1997-02-27
EP0540091B1 (en) 1997-01-15
NO924080D0 (no) 1992-10-21
KR960006125B1 (ko) 1996-05-09
NZ244837A (en) 1994-10-26
EP0540091A1 (en) 1993-05-05
NO924080L (no) 1993-04-30
CN1080343A (zh) 1994-01-05

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