ATE133728T1 - Mittleres konsistenz-ozonbleichen - Google Patents

Mittleres konsistenz-ozonbleichen

Info

Publication number
ATE133728T1
ATE133728T1 AT92890136T AT92890136T ATE133728T1 AT E133728 T1 ATE133728 T1 AT E133728T1 AT 92890136 T AT92890136 T AT 92890136T AT 92890136 T AT92890136 T AT 92890136T AT E133728 T1 ATE133728 T1 AT E133728T1
Authority
AT
Austria
Prior art keywords
pulp
path
ozone
conduit
mixer
Prior art date
Application number
AT92890136T
Other languages
English (en)
Inventor
Kay Henricson
Joseph R Phillips
Brian F Greenwood
Erwin D Funk
Stephen J Dunn
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
Application granted granted Critical
Publication of ATE133728T1 publication Critical patent/ATE133728T1/de

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
    • D21C9/147—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)
  • Investigating Or Analysing Biological Materials (AREA)
  • Saccharide Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
AT92890136T 1991-06-07 1992-06-05 Mittleres konsistenz-ozonbleichen ATE133728T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/710,439 US5411634A (en) 1991-04-30 1991-06-07 Medium consistency ozone bleaching

Publications (1)

Publication Number Publication Date
ATE133728T1 true ATE133728T1 (de) 1996-02-15

Family

ID=24854034

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92890136T ATE133728T1 (de) 1991-06-07 1992-06-05 Mittleres konsistenz-ozonbleichen

Country Status (13)

Country Link
US (1) US5411634A (de)
EP (1) EP0517691B1 (de)
JP (1) JP3095526B2 (de)
AT (1) ATE133728T1 (de)
AU (1) AU1317292A (de)
BR (1) BR9202009A (de)
DE (1) DE69207957T2 (de)
ES (1) ES2085614T3 (de)
FI (1) FI103816B (de)
MX (1) MX9202683A (de)
NO (1) NO922239L (de)
RU (1) RU2082846C1 (de)
ZA (1) ZA922293B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI925558A7 (fi) * 1992-04-22 1993-10-23 Andritz Oy Menetelmä ja laitteisto massan valkaisemiseksi
US6174409B1 (en) 1997-09-19 2001-01-16 American Air Liquide Inc. Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO144711C (no) 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
US4902381A (en) * 1988-12-09 1990-02-20 Kamyr, Inc. Method of bleaching pulp with ozone-chlorine mixtures
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps

Also Published As

Publication number Publication date
EP0517691A1 (de) 1992-12-09
JPH05163691A (ja) 1993-06-29
ES2085614T3 (es) 1996-06-01
FI921776A0 (fi) 1992-04-22
FI103816B1 (fi) 1999-09-30
DE69207957T2 (de) 1996-09-19
NO922239L (no) 1992-12-08
AU1317292A (en) 1992-12-10
NO922239D0 (no) 1992-06-05
EP0517691B1 (de) 1996-01-31
BR9202009A (pt) 1993-01-19
MX9202683A (es) 1993-08-01
ZA922293B (en) 1992-11-25
RU2082846C1 (ru) 1997-06-27
FI921776A7 (fi) 1992-12-08
US5411634A (en) 1995-05-02
DE69207957D1 (de) 1996-03-14
FI103816B (fi) 1999-09-30
JP3095526B2 (ja) 2000-10-03

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee