FI821185A0 - Syredelignifikationsfoerfarande och -anordning - Google Patents

Syredelignifikationsfoerfarande och -anordning

Info

Publication number
FI821185A0
FI821185A0 FI821185A FI821185A FI821185A0 FI 821185 A0 FI821185 A0 FI 821185A0 FI 821185 A FI821185 A FI 821185A FI 821185 A FI821185 A FI 821185A FI 821185 A0 FI821185 A0 FI 821185A0
Authority
FI
Finland
Prior art keywords
syredelignifikationsfoerfarande
anordning
och
syredelignifikationsfoerfarande och
Prior art date
Application number
FI821185A
Other languages
English (en)
Other versions
FI821185L (fi
Inventor
Larry D Markham
Edward F Elton
Vincent L Magnotta
Original Assignee
Black Clawson Co
Air Prod & Chem
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 Black Clawson Co, Air Prod & Chem filed Critical Black Clawson Co
Publication of FI821185A0 publication Critical patent/FI821185A0/fi
Publication of FI821185L publication Critical patent/FI821185L/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
    • D21C9/1026—Other features in bleaching processes
    • 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
    • D21C9/1068—Bleaching ; Apparatus therefor with O2

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Water Treatment By Sorption (AREA)
  • Toilet Supplies (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
FI821185A 1981-04-06 1982-04-05 Syredelignifikationsfoerfarande och -anordning FI821185L (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25140181A 1981-04-06 1981-04-06

Publications (2)

Publication Number Publication Date
FI821185A0 true FI821185A0 (fi) 1982-04-05
FI821185L FI821185L (fi) 1982-10-07

Family

ID=22951813

Family Applications (1)

Application Number Title Priority Date Filing Date
FI821185A FI821185L (fi) 1981-04-06 1982-04-05 Syredelignifikationsfoerfarande och -anordning

Country Status (8)

Country Link
EP (1) EP0062539A1 (fi)
JP (1) JPS57183489A (fi)
AU (1) AU8191982A (fi)
BR (1) BR8201939A (fi)
CA (1) CA1184709A (fi)
FI (1) FI821185L (fi)
NO (1) NO821139L (fi)
ZA (1) ZA821923B (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409570A (en) * 1989-02-15 1995-04-25 Union Camp Patent Holding, Inc. Process for ozone bleaching of oxygen delignified pulp while conveying the pulp through a reaction zone
US5472572A (en) * 1990-10-26 1995-12-05 Union Camp Patent Holding, Inc. Reactor for bleaching high consistency pulp with ozone
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
US5188708A (en) * 1989-02-15 1993-02-23 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification followed by ozone relignification
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
US5181989A (en) * 1990-10-26 1993-01-26 Union Camp Patent Holdings, Inc. Reactor for bleaching high consistency pulp with ozone
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
US5217574A (en) * 1989-02-15 1993-06-08 Union Camp Patent Holdings Inc. Process for oxygen delignifying high consistency pulp by removing and recycling pressate from alkaline pulp
US5525195A (en) * 1989-02-15 1996-06-11 Union Camp Patent Holding, Inc. Process for high consistency delignification using a low consistency alkali pretreatment
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5174861A (en) * 1990-10-26 1992-12-29 Union Camp Patent Holdings, Inc. Method of bleaching high consistency pulp with ozone
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
EP0515303B2 (en) * 1991-05-24 2001-07-04 Union Camp Patent Holding, Inc. Method for ozone bleaching

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA918978A (en) * 1970-01-08 1973-01-16 G. Jamieson Allan Oxygen bleaching
JPS5119481B2 (fi) * 1973-08-30 1976-06-17
US4198266A (en) * 1977-10-12 1980-04-15 Airco, Inc. Oxygen delignification of wood pulp
US4363697A (en) * 1979-12-03 1982-12-14 The Black Clawson Company Method for medium consistency oxygen delignification of pulp

Also Published As

Publication number Publication date
JPS57183489A (en) 1982-11-11
FI821185L (fi) 1982-10-07
EP0062539A1 (en) 1982-10-13
ZA821923B (en) 1983-02-23
BR8201939A (pt) 1983-03-08
CA1184709A (en) 1985-04-02
NO821139L (no) 1982-10-07
AU8191982A (en) 1982-10-14

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: AIR PRODUCTS AND CHEMICALS, INC.

Owner name: THE BLACK CLAWSON CO