AU636766B2 - Pneumatic reactor ozone bleaching of paper pulp - Google Patents

Pneumatic reactor ozone bleaching of paper pulp

Info

Publication number
AU636766B2
AU636766B2 AU79116/91A AU7911691A AU636766B2 AU 636766 B2 AU636766 B2 AU 636766B2 AU 79116/91 A AU79116/91 A AU 79116/91A AU 7911691 A AU7911691 A AU 7911691A AU 636766 B2 AU636766 B2 AU 636766B2
Authority
AU
Australia
Prior art keywords
paper pulp
ozone bleaching
pneumatic
reactor ozone
pneumatic reactor
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
AU79116/91A
Other languages
English (en)
Other versions
AU7911691A (en
Inventor
Thomas R. Delcourt
Stephen J. Dunn
Michael D. Fahey
Brian F. Greenwood
Jian Jiang
Joseph R. Phillips
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.)
Kamyr Inc
Original Assignee
Kamyr 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 Kamyr Inc filed Critical Kamyr Inc
Publication of AU7911691A publication Critical patent/AU7911691A/en
Application granted granted Critical
Publication of AU636766B2 publication Critical patent/AU636766B2/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
AU79116/91A 1990-12-27 1991-06-18 Pneumatic reactor ozone bleaching of paper pulp Ceased AU636766B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US63334790A 1990-12-27 1990-12-27
US633347 1990-12-27

Publications (2)

Publication Number Publication Date
AU7911691A AU7911691A (en) 1992-07-02
AU636766B2 true AU636766B2 (en) 1993-05-06

Family

ID=24539279

Family Applications (1)

Application Number Title Priority Date Filing Date
AU79116/91A Ceased AU636766B2 (en) 1990-12-27 1991-06-18 Pneumatic reactor ozone bleaching of paper pulp

Country Status (8)

Country Link
EP (1) EP0492039A1 (de)
JP (1) JPH04245989A (de)
AU (1) AU636766B2 (de)
BR (1) BR9104366A (de)
CA (1) CA2044907A1 (de)
FI (1) FI915947A (de)
NO (1) NO914169L (de)
ZA (1) ZA915144B (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5520783A (en) * 1990-10-26 1996-05-28 Union Camp Patent Holding, Inc. Apparatus for bleaching high consistency pulp with ozone
CA2046717A1 (en) * 1991-02-06 1992-08-07 Beloit Technologies, Inc. Method and apparatus for treating fibrous materials with a gaseous reagent
NZ242792A (en) * 1991-05-24 1993-12-23 Union Camp Patent Holding Two-stage pulp bleaching reactor: pulp mixed with ozone in first stage.
SE9200183L (sv) * 1992-01-23 1993-07-24 Kamyr Ab Avskiljningsanordning samt foerfarande
DE69602269T2 (de) * 1995-07-26 1999-09-16 Beloit Technologies, Inc. Verfahren und vorrichtung zum zellstoffbleichen mit einem gasförmigen bleichmittel
US5944952A (en) * 1995-07-26 1999-08-31 Beloit Technologies, Inc. Method for bleaching high consistency pulp with a gaseous bleaching reagent

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber
US4278496A (en) * 1977-04-27 1981-07-14 Myrens Verksted A/S Method for bleaching pulp with ozone

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
AT395180B (de) * 1989-08-16 1992-10-12 Andritz Ag Maschf Verfahren zur zerkleinerung von materialien und anlage zu dessen durchfuehrung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814664A (en) * 1972-09-11 1974-06-04 Improved Machinery Inc Gaseous reaction apparatus including a peripheral gas receiving chamber
US4278496A (en) * 1977-04-27 1981-07-14 Myrens Verksted A/S Method for bleaching pulp with ozone

Also Published As

Publication number Publication date
NO914169D0 (no) 1991-10-23
EP0492039A1 (de) 1992-07-01
ZA915144B (en) 1992-05-27
JPH04245989A (ja) 1992-09-02
AU7911691A (en) 1992-07-02
BR9104366A (pt) 1992-08-18
CA2044907A1 (en) 1992-06-28
FI915947A (fi) 1992-06-28
NO914169L (no) 1992-06-29
FI915947A0 (fi) 1991-12-18

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