DE69316988D1 - Verbessertes ozonbleichen - Google Patents

Verbessertes ozonbleichen

Info

Publication number
DE69316988D1
DE69316988D1 DE69316988T DE69316988T DE69316988D1 DE 69316988 D1 DE69316988 D1 DE 69316988D1 DE 69316988 T DE69316988 T DE 69316988T DE 69316988 T DE69316988 T DE 69316988T DE 69316988 D1 DE69316988 D1 DE 69316988D1
Authority
DE
Germany
Prior art keywords
pulp
ozone bleaching
bleaching
ozone
medium
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.)
Expired - Fee Related
Application number
DE69316988T
Other languages
English (en)
Other versions
DE69316988T2 (de
Inventor
Marco Solinas
Thomas Howard Murphy
Heiningen Adriaan Reinhard Van
Yonghao Ni
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.)
MacMillan Bloedel Ltd
University of New Brunswick
Original Assignee
MacMillan Bloedel Ltd
University of New Brunswick
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 MacMillan Bloedel Ltd, University of New Brunswick filed Critical MacMillan Bloedel Ltd
Application granted granted Critical
Publication of DE69316988D1 publication Critical patent/DE69316988D1/de
Publication of DE69316988T2 publication Critical patent/DE69316988T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21C9/101—Bleaching ; Apparatus therefor in solvent medium
    • 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
    • D21C9/147—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)
  • Detergent Compositions (AREA)
DE69316988T 1992-10-23 1993-10-07 Verbessertes ozonbleichen Expired - Fee Related DE69316988T2 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US96663992A 1992-10-23 1992-10-23
US98006892A 1992-11-23 1992-11-23
US5649693A 1993-05-03 1993-05-03
PCT/CA1993/000402 WO1994010377A1 (en) 1992-10-23 1993-10-07 Improved ozone bleaching

Publications (2)

Publication Number Publication Date
DE69316988D1 true DE69316988D1 (de) 1998-03-19
DE69316988T2 DE69316988T2 (de) 1998-07-30

Family

ID=27369043

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69316988T Expired - Fee Related DE69316988T2 (de) 1992-10-23 1993-10-07 Verbessertes ozonbleichen

Country Status (11)

Country Link
US (1) US5685953A (de)
EP (1) EP0665912B1 (de)
JP (1) JPH08502556A (de)
CN (1) CN1107530A (de)
AT (1) ATE163206T1 (de)
AU (1) AU5104593A (de)
BR (1) BR9307281A (de)
CA (1) CA2147244A1 (de)
DE (1) DE69316988T2 (de)
FI (1) FI951919A (de)
WO (1) WO1994010377A1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2190503A1 (en) * 1994-06-02 1995-12-14 Marco Solinas Ozone bleaching
AU2400697A (en) * 1996-03-25 1997-10-17 Alcell Technologies Inc. Ozone-bleached organosolv pulps
CN100404754C (zh) * 2002-10-18 2008-07-23 梅秀泉 生物/氧化法造芦苇浆的制备方法
CN100404753C (zh) * 2002-10-18 2008-07-23 梅秀泉 氧化法全棉秆造新闻纸浆及其制备方法
US6923887B2 (en) * 2003-02-21 2005-08-02 Alberta Research Council Inc. Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium
EP1675496B1 (de) * 2003-10-24 2012-09-26 Ozone Wash (Pty) Limited Geschirrspülverfahren einschliesslich eines biozids
EP1707668A1 (de) * 2003-12-25 2006-10-04 Xiuquan Mei Oxidativer aufschluss im geschlossenen kreislauf mit null emissionen
CN100420788C (zh) * 2003-12-25 2008-09-24 梅秀泉 全封闭零排放生物/氧化法清洁造纸浆方法和由此获得的纸浆
US20070131364A1 (en) * 2005-12-14 2007-06-14 University Of Maine Process for treating a cellulose-lignin pulp
US20100224336A1 (en) * 2005-12-14 2010-09-09 University Of Maine System Board Of Trustees Process of bleaching a wood pulp
US8268124B2 (en) 2007-01-15 2012-09-18 Nihon Cellulose Co., Ltd. Method for production of pulp
EP3712611A4 (de) * 2017-12-20 2021-05-26 Unicharm Corporation Verfahren zur bewertung des reinheitsgrades von recycling-material, verfahren zur herstellung von recycling-material, recycling-zellstofffaser und verfahren zur herstellung einer recycling-zellstofffaser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4041742A (en) * 1976-01-15 1977-08-16 Kelsey-Hayes Company Apparatus and method for cold working metal powder
JPS5390403A (en) * 1977-01-17 1978-08-09 Kogyo Gijutsuin Improving of oxygenn ozone bleaching of pulp
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
US4229252A (en) * 1979-01-11 1980-10-21 Weyerhaeuser Company Additives for ozone bleaching
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
JPH06506271A (ja) * 1991-04-08 1994-07-14 インターナショナル・ペーパー・カンパニー Ｄｚｄ漂白配列の使用による漂白排水からの着色物質の低減方法
SE469387B (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier

Also Published As

Publication number Publication date
CN1107530A (zh) 1995-08-30
BR9307281A (pt) 1999-06-01
EP0665912A1 (de) 1995-08-09
AU5104593A (en) 1994-05-24
FI951919A0 (fi) 1995-04-21
ATE163206T1 (de) 1998-02-15
CA2147244A1 (en) 1994-05-11
WO1994010377A1 (en) 1994-05-11
EP0665912B1 (de) 1998-02-11
DE69316988T2 (de) 1998-07-30
JPH08502556A (ja) 1996-03-19
US5685953A (en) 1997-11-11
FI951919A (fi) 1995-06-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee