BR8307656A - Processo para alvejamento com peroxido de material que contem celulose - Google Patents

Processo para alvejamento com peroxido de material que contem celulose

Info

Publication number
BR8307656A
BR8307656A BR8307656A BR8307656A BR8307656A BR 8307656 A BR8307656 A BR 8307656A BR 8307656 A BR8307656 A BR 8307656A BR 8307656 A BR8307656 A BR 8307656A BR 8307656 A BR8307656 A BR 8307656A
Authority
BR
Brazil
Prior art keywords
pct
pulp
peroxide
bleaching
targeting
Prior art date
Application number
BR8307656A
Other languages
English (en)
Inventor
Steve Moldenius
Original Assignee
Svenska Traeforskningsinst
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 Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst
Publication of BR8307656A publication Critical patent/BR8307656A/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
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
BR8307656A 1982-12-17 1983-12-16 Processo para alvejamento com peroxido de material que contem celulose BR8307656A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8207236A SE452346C (sv) 1982-12-17 1982-12-17 Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg
PCT/SE1983/000462 WO1984002366A1 (en) 1982-12-17 1983-12-16 Method of peroxide bleaching cellulose-containing material

Publications (1)

Publication Number Publication Date
BR8307656A true BR8307656A (pt) 1984-12-11

Family

ID=20349053

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8307656A BR8307656A (pt) 1982-12-17 1983-12-16 Processo para alvejamento com peroxido de material que contem celulose

Country Status (13)

Country Link
US (1) US4734160A (pt)
EP (1) EP0128190B1 (pt)
JP (1) JPS60500263A (pt)
AT (1) ATE36565T1 (pt)
BR (1) BR8307656A (pt)
CA (1) CA1234655A (pt)
DE (1) DE3377724D1 (pt)
ES (1) ES528138A0 (pt)
FI (1) FI843242A0 (pt)
IT (1) IT1197760B (pt)
NO (1) NO163631C (pt)
SE (1) SE452346C (pt)
WO (1) WO1984002366A1 (pt)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455203B (sv) * 1986-10-20 1988-06-27 Eka Nobel Ab Forfarande for styrning av peroxidblekning av massa
FR2673813B1 (fr) * 1991-03-15 1995-02-24 Atochem Procede de blanchiment en deux etapes de matieres vegetales a usage alimentaire.
CA2063351C (en) * 1992-03-18 1996-08-13 Stanley Alan Heimburger Process for bleaching hardwood pulp
SE500616C2 (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
US7052578B2 (en) * 2000-01-28 2006-05-30 Martin Marietta Magnesia Specialties, Inc. Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp
US6627041B2 (en) * 2000-03-06 2003-09-30 Georgia-Pacific Corporation Method of bleaching and providing papermaking fibers with durable curl
US6899790B2 (en) 2000-03-06 2005-05-31 Georgia-Pacific Corporation Method of providing papermaking fibers with durable curl
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
FI122238B (fi) 2006-02-09 2011-10-31 Metso Automation Oy Menetelmä ja laitteisto massasuspension kokonaisperoksidipitoisuuden määrittämiseksi
US8673113B2 (en) 2010-06-09 2014-03-18 The University Of British Columbia Process for reducing specific energy demand during refining of thermomechanical and chemi-thermomechanical pulp

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966542A (en) * 1974-09-20 1976-06-29 General Signal Corporation Multi-stage bleaching of pulp using successively lower power levels
SE413684C (sv) * 1974-09-23 1987-05-07 Mo Och Domsjoe Ab Forfarande for framstellning av cellulosamassa i utbytesomradet 65-95 %
SE387977B (sv) * 1975-01-27 1976-09-20 Elektrokemiska Ab Sett att framstella blekt, mekanisk massa med hog styrka och ljushet
SE407091B (sv) * 1976-02-05 1979-03-12 Sca Development Ab Sett att peroxidbleka genom raffinering framstelld cellulosamassa
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
EP0128190A1 (en) 1984-12-19
SE8207236D0 (sv) 1982-12-17
SE8207236L (sv) 1984-06-18
JPS60500263A (ja) 1985-02-28
IT8349543A0 (it) 1983-12-19
SE452346C (sv) 1989-12-21
EP0128190B1 (en) 1988-08-17
DE3377724D1 (en) 1988-09-22
ES8505001A1 (es) 1985-04-16
SE452346B (sv) 1987-11-23
ES528138A0 (es) 1985-04-16
ATE36565T1 (de) 1988-09-15
NO843255L (no) 1984-08-15
WO1984002366A1 (en) 1984-06-21
IT1197760B (it) 1988-12-06
CA1234655A (en) 1988-04-05
NO163631C (no) 1990-06-27
FI843242A (fi) 1984-08-16
FI843242A0 (fi) 1984-08-16
NO163631B (no) 1990-03-19
US4734160A (en) 1988-03-29

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