FI941238A0 - Menetelmä massan otsonivalkaisussa - Google Patents

Menetelmä massan otsonivalkaisussa

Info

Publication number
FI941238A0
FI941238A0 FI941238A FI941238A FI941238A0 FI 941238 A0 FI941238 A0 FI 941238A0 FI 941238 A FI941238 A FI 941238A FI 941238 A FI941238 A FI 941238A FI 941238 A0 FI941238 A0 FI 941238A0
Authority
FI
Finland
Prior art keywords
solution
ozone
acidity
ozone bleaching
waste liquor
Prior art date
Application number
FI941238A
Other languages
English (en)
Swedish (sv)
Other versions
FI941238A (fi
Inventor
Rolf Carl August Braennland
Sture Erik Olof Noreus
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
Publication of FI941238A publication Critical patent/FI941238A/fi
Publication of FI941238A0 publication Critical patent/FI941238A0/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
    • 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)
FI941238A 1991-09-17 1994-03-16 Menetelmä massan otsonivalkaisussa FI941238A0 (fi)

Applications Claiming Priority (2)

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
PCT/SE1992/000635 WO1993006297A1 (en) 1991-09-17 1992-09-16 A method in ozone bleaching of pulp

Publications (2)

Publication Number Publication Date
FI941238A FI941238A (fi) 1994-03-16
FI941238A0 true FI941238A0 (fi) 1994-03-16

Family

ID=20383749

Family Applications (1)

Application Number Title Priority Date Filing Date
FI941238A FI941238A0 (fi) 1991-09-17 1994-03-16 Menetelmä massan otsonivalkaisussa

Country Status (10)

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

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 (fi) * 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
EP0605565B1 (en) 1996-06-05
PT100870A (pt) 1994-01-31
DE69211351T2 (de) 1997-01-23
FI941238A (fi) 1994-03-16
WO1993006297A1 (en) 1993-04-01
CA2116974A1 (en) 1993-04-01
DE69211351D1 (de) 1996-07-11
SE9102693L (sv) 1993-03-18
EP0605565A1 (en) 1994-07-13
AU2663192A (en) 1993-04-27
ES2089567T3 (es) 1996-10-01
ATE138989T1 (de) 1996-06-15
SE500053C2 (sv) 1994-03-28
SE9102693D0 (sv) 1991-09-17
PT100870B (pt) 1999-07-30
AU657003B2 (en) 1995-02-23

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