SE9102693D0 - Foerfarande foer ozonblekning av massa - Google Patents

Foerfarande foer ozonblekning av massa

Info

Publication number
SE9102693D0
SE9102693D0 SE9102693A SE9102693A SE9102693D0 SE 9102693 D0 SE9102693 D0 SE 9102693D0 SE 9102693 A SE9102693 A SE 9102693A SE 9102693 A SE9102693 A SE 9102693A SE 9102693 D0 SE9102693 D0 SE 9102693D0
Authority
SE
Sweden
Prior art keywords
ozone
solution
acidity
waste liquor
cellulose pulp
Prior art date
Application number
SE9102693A
Other languages
English (en)
Other versions
SE9102693L (sv
SE500053C2 (sv
Inventor
R C A Braennland
Original Assignee
Mo Och Domsjoe Ab
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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Priority to SE9102693A priority Critical patent/SE500053C2/sv
Publication of SE9102693D0 publication Critical patent/SE9102693D0/sv
Priority to PCT/SE1992/000635 priority patent/WO1993006297A1/en
Priority to DE69211351T priority patent/DE69211351T2/de
Priority to EP92920388A priority patent/EP0605565B1/en
Priority to CA002116974A priority patent/CA2116974A1/en
Priority to ES92920388T priority patent/ES2089567T3/es
Priority to PT100870A priority patent/PT100870B/pt
Priority to AU26631/92A priority patent/AU657003B2/en
Priority to AT92920388T priority patent/ATE138989T1/de
Publication of SE9102693L publication Critical patent/SE9102693L/sv
Priority to NO940907A priority patent/NO303074B1/no
Priority to FI941238A priority patent/FI941238A0/sv
Publication of SE500053C2 publication Critical patent/SE500053C2/sv
Priority to US09/112,325 priority patent/US6039837A/en

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • 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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Detergent Compositions (AREA)
SE9102693A 1991-09-17 1991-09-17 Ozonblekning varvid massan surgöres med genom elektrolys framställd svavelsyra SE500053C2 (sv)

Priority Applications (12)

Application Number Priority Date Filing Date Title
SE9102693A SE500053C2 (sv) 1991-09-17 1991-09-17 Ozonblekning varvid massan surgöres med genom elektrolys framställd svavelsyra
AT92920388T ATE138989T1 (de) 1991-09-17 1992-09-16 Verfahren zum bleichen von zellstoff mittels ozon
PT100870A PT100870B (pt) 1991-09-17 1992-09-16 Processo para o branqueamento de pasta celulosica com ozono
DE69211351T DE69211351T2 (de) 1991-09-17 1992-09-16 Verfahren zum bleichen von zellstoff mittels ozon
EP92920388A EP0605565B1 (en) 1991-09-17 1992-09-16 A method in ozone bleaching of pulp
CA002116974A CA2116974A1 (en) 1991-09-17 1992-09-16 A method in ozone bleaching of pulp
ES92920388T ES2089567T3 (es) 1991-09-17 1992-09-16 Un metodo para blanqueo de pasta con ozono.
PCT/SE1992/000635 WO1993006297A1 (en) 1991-09-17 1992-09-16 A method in ozone bleaching of pulp
AU26631/92A AU657003B2 (en) 1991-09-17 1992-09-16 Ozone bleaching of pulp
NO940907A NO303074B1 (no) 1991-09-17 1994-03-14 FremgangsmÕte ved ozonbleking av masse
FI941238A FI941238A0 (sv) 1991-09-17 1994-03-16 Förfarande vid ozonblekning av massa
US09/112,325 US6039837A (en) 1991-09-17 1998-07-09 Method of bleaching pulp with ozone wherein the acidity is maintained with an acid solution prepared by electrolysis or electrodialysis

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9102693A SE500053C2 (sv) 1991-09-17 1991-09-17 Ozonblekning varvid massan surgöres med genom elektrolys framställd svavelsyra

Publications (3)

Publication Number Publication Date
SE9102693D0 true SE9102693D0 (sv) 1991-09-17
SE9102693L SE9102693L (sv) 1993-03-18
SE500053C2 SE500053C2 (sv) 1994-03-28

Family

ID=20383749

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9102693A SE500053C2 (sv) 1991-09-17 1991-09-17 Ozonblekning varvid massan surgöres med genom elektrolys framställd svavelsyra

Country Status (10)

Country Link
EP (1) EP0605565B1 (sv)
AT (1) ATE138989T1 (sv)
AU (1) AU657003B2 (sv)
CA (1) CA2116974A1 (sv)
DE (1) DE69211351T2 (sv)
ES (1) ES2089567T3 (sv)
FI (1) FI941238A0 (sv)
PT (1) PT100870B (sv)
SE (1) SE500053C2 (sv)
WO (1) WO1993006297A1 (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9704298L (sv) * 1997-11-24 1999-05-25 Kvaerner Pulping Tech Förfarande vid blekning av cellulosa i ett slutet system under användning av Caro´s syra
KR101815677B1 (ko) * 2011-07-26 2018-01-30 롯데정밀화학 주식회사 셀룰로오스와 그 유도체의 탈색 방법
DE102013100997A1 (de) 2013-01-31 2014-07-31 Thyssenkrupp Resource Technologies Gmbh 1;2Verfahren und Anlage zur Mahlung von stückigem Ausgangsmaterial
CN115490372A (zh) * 2021-06-17 2022-12-20 中国石油化工股份有限公司 一种废旧棉制浆黑液处理方法及系统

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS503990B1 (sv) * 1969-02-19 1975-02-13
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon

Also Published As

Publication number Publication date
AU2663192A (en) 1993-04-27
FI941238A (sv) 1994-03-16
SE9102693L (sv) 1993-03-18
EP0605565A1 (en) 1994-07-13
DE69211351T2 (de) 1997-01-23
SE500053C2 (sv) 1994-03-28
ATE138989T1 (de) 1996-06-15
DE69211351D1 (de) 1996-07-11
CA2116974A1 (en) 1993-04-01
PT100870B (pt) 1999-07-30
WO1993006297A1 (en) 1993-04-01
ES2089567T3 (es) 1996-10-01
EP0605565B1 (en) 1996-06-05
AU657003B2 (en) 1995-02-23
FI941238A0 (sv) 1994-03-16
PT100870A (pt) 1994-01-31

Similar Documents

Publication Publication Date Title
DE2141757C3 (de) Verfahren zum Bleichen von Zellstoffbrei
DE2936551C1 (de) Verfahren zum Bleichen und Extrahieren eines Lignocellulose enthaltenden Materials
US4196043A (en) Kraft pulp bleaching and recovery process
ATE130888T1 (de) Verfahren zum bleichen von lignocellulose enthaltendem material.
DE2219505A1 (de) Chlorfreie mehrstufenbleiche von zellstoff
KR850001341B1 (ko) 화학펄프류의 표백처리법
DE2415498A1 (de) Bleich- und rueckgewinnungsverfahren fuer kraftzellstoff
SE9102693L (sv) Foerfarande foer ozonblekning av massa
US4268350A (en) Method of treating pulp bleaching effluents
FI96522C (sv) Förfarande för framställning av blekta kemitermomekaniska massor
DE1692848A1 (de) Verfahren zur Gewinnung von gebleichten Pulpen
US2203205A (en) Method of bleaching pulp
AU2010323001B2 (en) Method of treating liquid flows at a chemical pulp mill
FI73016B (fi) Saett vid tillverkning av mekanisk cellulosamassa.
EP0656966A1 (en) METHOD FOR TREATING WASTEWATER.
JPH0217678B2 (sv)
BRPI0619948A2 (pt) processo de tratamento de polpa celulose-lignina, processo de tratamento de polpa de madeira
SI9300044A (en) Process for lignin separation from a raw cellulose
US3481827A (en) Process for bleaching wood pulp with fluorine,hydrofluoric acid,and oxygen difluoride
GB1062734A (en) Improvements in or relating to bleaching cellulose pulp
US3174896A (en) Treatment of spent caustic solution
FI76136B (fi) Foerfarande foer blekning av ns-aq- eller sap-massa.
JPS6055638B2 (ja) オゾンによるパルプ漂白法
Hart et al. Competing/parallel reaction of chlorine and chlorine dioxide during kraft pulp bleaching
SU779470A1 (ru) Способ обработки сульфитной целлюлозы после варки