PT100870B - Processo para o branqueamento de pasta celulosica com ozono - Google Patents

Processo para o branqueamento de pasta celulosica com ozono Download PDF

Info

Publication number
PT100870B
PT100870B PT100870A PT10087092A PT100870B PT 100870 B PT100870 B PT 100870B PT 100870 A PT100870 A PT 100870A PT 10087092 A PT10087092 A PT 10087092A PT 100870 B PT100870 B PT 100870B
Authority
PT
Portugal
Prior art keywords
bleaching
ozone
solution
pulp
paste
Prior art date
Application number
PT100870A
Other languages
English (en)
Portuguese (pt)
Other versions
PT100870A (pt
Inventor
Rolf Carl August Brannland
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 PT100870A publication Critical patent/PT100870A/pt
Publication of PT100870B publication Critical patent/PT100870B/pt

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)
PT100870A 1991-09-17 1992-09-16 Processo para o branqueamento de pasta celulosica com ozono PT100870B (pt)

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 (2)

Publication Number Publication Date
PT100870A PT100870A (pt) 1994-01-31
PT100870B true PT100870B (pt) 1999-07-30

Family

ID=20383749

Family Applications (1)

Application Number Title Priority Date Filing Date
PT100870A PT100870B (pt) 1991-09-17 1992-09-16 Processo para o branqueamento de pasta celulosica com ozono

Country Status (10)

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

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 (fr) * 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
WO1993006297A1 (fr) 1993-04-01
SE9102693L (sv) 1993-03-18
EP0605565A1 (fr) 1994-07-13
AU2663192A (en) 1993-04-27
SE500053C2 (sv) 1994-03-28
PT100870A (pt) 1994-01-31
DE69211351T2 (de) 1997-01-23
EP0605565B1 (fr) 1996-06-05
SE9102693D0 (sv) 1991-09-17
ATE138989T1 (de) 1996-06-15
FI941238A (fi) 1994-03-16
FI941238A0 (fi) 1994-03-16
ES2089567T3 (es) 1996-10-01
DE69211351D1 (de) 1996-07-11
AU657003B2 (en) 1995-02-23
CA2116974A1 (fr) 1993-04-01

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Legal Events

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BB1A Laying open of patent application

Effective date: 19930624

FG3A Patent granted, date of granting

Effective date: 19990416

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20011031