AU647485B2 - Pulp alkali addition process for high consistency oxygen delignification - Google Patents

Pulp alkali addition process for high consistency oxygen delignification

Info

Publication number
AU647485B2
AU647485B2 AU78754/91A AU7875491A AU647485B2 AU 647485 B2 AU647485 B2 AU 647485B2 AU 78754/91 A AU78754/91 A AU 78754/91A AU 7875491 A AU7875491 A AU 7875491A AU 647485 B2 AU647485 B2 AU 647485B2
Authority
AU
Australia
Prior art keywords
pulp
consistency
alkaline material
delignification
brownstock
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
AU78754/91A
Other languages
English (en)
Other versions
AU7875491A (en
Inventor
Bruce F Griggs
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 AU7875491A publication Critical patent/AU7875491A/en
Application granted granted Critical
Publication of AU647485B2 publication Critical patent/AU647485B2/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
    • D21C9/001—Modification of pulp properties
    • D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
    • D21C9/004—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives inorganic compounds
    • 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)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Paper (AREA)
AU78754/91A 1991-04-18 1991-04-18 Pulp alkali addition process for high consistency oxygen delignification Ceased AU647485B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA002069447A CA2069447C (en) 1991-04-18 1991-04-18 Pulp alkali addition process for high consistency oxygen delignification
PCT/US1991/002673 WO1992018689A1 (en) 1991-04-18 1991-04-18 Pulp alkali addition process for high consistency oxygen delignification
CN91103486A CN1066308A (zh) 1991-04-18 1991-04-30 用于高浓度氧脱木素作用的纸浆加碱法
SE9203801A SE9203801L (sv) 1991-04-18 1992-12-17 Massaframstaellningsfoerfarande med alkalitillsats foer tjockmassa-oxygendelignifiering

Publications (2)

Publication Number Publication Date
AU7875491A AU7875491A (en) 1992-11-17
AU647485B2 true AU647485B2 (en) 1994-03-24

Family

ID=27426917

Family Applications (1)

Application Number Title Priority Date Filing Date
AU78754/91A Ceased AU647485B2 (en) 1991-04-18 1991-04-18 Pulp alkali addition process for high consistency oxygen delignification

Country Status (7)

Country Link
EP (1) EP0539381A4 (zh)
JP (1) JPH06501290A (zh)
CN (1) CN1066308A (zh)
AU (1) AU647485B2 (zh)
CA (1) CA2069447C (zh)
SE (1) SE9203801L (zh)
WO (1) WO1992018689A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI923585A (fi) * 1991-08-14 1993-02-15 Union Camp Patent Holding Anvaendning av en tvaettpress i en alkalitillsatsprocess foer massa
CN100395403C (zh) * 2007-08-03 2008-06-18 山东泉林纸业有限责任公司 一种禾草类未漂化学浆的氧脱木素处理方法
WO2019227285A1 (en) * 2018-05-28 2019-12-05 Pierson Capital Environmental (Beijing) Limited Efficient methods and compositions for recovery of products from organic acid pretreatment of plant materials

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198261A (en) * 1977-12-05 1980-04-15 Gould Inc. Method for end point detection during plasma etching
US4806203A (en) * 1985-02-14 1989-02-21 Elton Edward F Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE334286B (zh) * 1968-12-05 1971-04-19 Mo Och Domsjoe Ab
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
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 (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4198261A (en) * 1977-12-05 1980-04-15 Gould Inc. Method for end point detection during plasma etching
US4806203A (en) * 1985-02-14 1989-02-21 Elton Edward F Method for alkaline delignification of lignocellulosic fibrous material at a consistency which is raised during reaction

Also Published As

Publication number Publication date
EP0539381A1 (en) 1993-05-05
SE9203801L (sv) 1993-02-10
JPH06501290A (ja) 1994-02-10
EP0539381A4 (en) 1994-10-12
AU7875491A (en) 1992-11-17
CA2069447A1 (en) 1992-10-19
WO1992018689A1 (en) 1992-10-29
SE9203801D0 (sv) 1992-12-17
CN1066308A (zh) 1992-11-18
CA2069447C (en) 1996-08-27

Similar Documents

Publication Publication Date Title
US5164044A (en) Environmentally improved process for bleaching lignocellulosic materials with ozone
AU638017B2 (en) Environmentally improved process for bleaching lignocellulosic materials
US5164043A (en) Environmentally improved process for bleaching lignocellulosic materials with ozone
US5211811A (en) Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5188708A (en) Process for high consistency oxygen delignification followed by ozone relignification
US5173153A (en) Process for enhanced oxygen delignification using high consistency and a split alkali addition
US5085734A (en) Methods of high consistency oxygen delignification using a low consistency alkali pretreatment
US5217574A (en) Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
US5525195A (en) Process for high consistency delignification using a low consistency alkali pretreatment
AU647485B2 (en) Pulp alkali addition process for high consistency oxygen delignification
AU647950B2 (en) Use of wash press for pulp alkali addition process
US5645687A (en) Process for manufacturing bleached pulp with reduced chloride production
US5441603A (en) Method for chelation of pulp prior to ozone delignification
AU647973B2 (en) Wash press modification for oxygen delignification process
WO1996002697A1 (en) Improved bleaching of high consistency lignocellulosic pulp
NZ232530A (en) Alkaline process for bleaching and delignifying wood or pulp
AU671159B2 (en) Improved bleaching of high consistency lignocellulosic pulp
RU2071518C1 (ru) Способ кислородной делигнификации небеленой целлюлозной массы
NZ243912A (en) Process for enhancing high consistency oxygen delignification of pulp by
WO1991000386A1 (en) A method for bleaching kraft pulp with a mixture of oxygen and peroxide
NZ239171A (en) Manufacture of bleached pulp by chemical digestion, partial delignification with oxygen, then substantial delignification with ozone