SE511743C3 - Ozonblekning vid medelkoncentration och hoeg temperatur - Google Patents

Ozonblekning vid medelkoncentration och hoeg temperatur

Info

Publication number
SE511743C3
SE511743C3 SE9500926A SE9500926A SE511743C3 SE 511743 C3 SE511743 C3 SE 511743C3 SE 9500926 A SE9500926 A SE 9500926A SE 9500926 A SE9500926 A SE 9500926A SE 511743 C3 SE511743 C3 SE 511743C3
Authority
SE
Sweden
Prior art keywords
ozone
bleaching
pulp
temperature
process according
Prior art date
Application number
SE9500926A
Other languages
English (en)
Swedish (sv)
Other versions
SE9500926L (sv
SE9500926D0 (sv
SE511743C2 (sv
Inventor
Kaj Henricson
Olavi Pikka
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE9500926D0 publication Critical patent/SE9500926D0/xx
Publication of SE9500926L publication Critical patent/SE9500926L/xx
Publication of SE511743C2 publication Critical patent/SE511743C2/sv
Publication of SE511743C3 publication Critical patent/SE511743C3/sv

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)
SE9500926A 1994-03-16 1995-03-16 Ozonblekning vid medelkoncentration och hoeg temperatur SE511743C3 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI941229A FI98839B (fi) 1994-03-16 1994-03-16 Menetelmä massan valkaisemiseksi

Publications (4)

Publication Number Publication Date
SE9500926D0 SE9500926D0 (sv) 1995-03-16
SE9500926L SE9500926L (sv) 1995-09-17
SE511743C2 SE511743C2 (sv) 1999-11-15
SE511743C3 true SE511743C3 (sv) 2000-01-10

Family

ID=8540324

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9500926A SE511743C3 (sv) 1994-03-16 1995-03-16 Ozonblekning vid medelkoncentration och hoeg temperatur

Country Status (3)

Country Link
CA (1) CA2144825A1 (fi)
FI (1) FI98839B (fi)
SE (1) SE511743C3 (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI105701B (fi) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi
CN113897813B (zh) * 2021-09-17 2022-10-04 华南理工大学 一种臭氧短序漂白桉木板皮浆的方法

Also Published As

Publication number Publication date
SE9500926L (sv) 1995-09-17
SE9500926D0 (sv) 1995-03-16
CA2144825A1 (en) 1995-09-17
FI941229A0 (fi) 1994-03-16
SE511743C2 (sv) 1999-11-15
FI98839B (fi) 1997-05-15
FI941229A (fi) 1995-09-17

Similar Documents

Publication Publication Date Title
JP4499280B2 (ja) 過酸による化学パルプの漂白
CA2211223C (en) Method of pretreating pulp to be bleached with peroxide
US4160693A (en) Process for the bleaching of cellulose pulp
SE466060C (sv) Absorberande kemitermomekanisk massa och framställning därav
SE531545C2 (sv) Process för mekanisk massaberedning med alkalisk peroxid
FI116393B (fi) Menetelmä selluloosamassan delignifioimiseksi ja valkaisemiseksi
JPH0217677B2 (fi)
EP2689063B1 (en) Method and arrangement for treating filtrate after oxygen delignification of chemical pulp cooked to a high kappa number
JP2003500568A (ja) パルプの機械的損傷を避ける方法
US20120118518A1 (en) Method for manufacturing papermaking pulp
AU2003216028B2 (en) Process for bleaching lignocellulose-containing non-wood pulp
EP2092116B1 (en) Method for bleaching chemical paper pulps by final ozone treatment at high temperature
RU2128259C1 (ru) Периодический процесс получения крафт-целлюлозы (варианты)
SE511743C3 (sv) Ozonblekning vid medelkoncentration och hoeg temperatur
JP3217065B2 (ja) パルプの連続蒸解法
RU2068904C1 (ru) Способ получения целлюлозы
RU2339752C2 (ru) Способ обработки целлюлозной массы с отбеливанием целлюлозы
AU647485B2 (en) Pulp alkali addition process for high consistency oxygen delignification
CA2190573A1 (en) Method and apparatus for delignifying chemical pulp
RU2055962C1 (ru) Способ получения целлюлозы для химической переработки
JPH10204785A (ja) 化学パルプの漂白前処理方法
CA2144677A1 (en) Method of tcf or ecf bleaching of cellulose pulp
SE507164C2 (sv) Blekning med klordioxid i ett trefassteg
Liebergott et al. THODS TO DECREASE AND ELIMINATE AOX IN THE BLEACH PLANT
SE500954C2 (sv) Klorfri blekning av kemisk pappersmassa

Legal Events

Date Code Title Description
CANC Patent cancelled, revoked after opposition
NUG Patent has lapsed