ES8505001A1 - Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa - Google Patents

Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa

Info

Publication number
ES8505001A1
ES8505001A1 ES528138A ES528138A ES8505001A1 ES 8505001 A1 ES8505001 A1 ES 8505001A1 ES 528138 A ES528138 A ES 528138A ES 528138 A ES528138 A ES 528138A ES 8505001 A1 ES8505001 A1 ES 8505001A1
Authority
ES
Spain
Prior art keywords
pct
pulp
peroxide bleaching
containing material
bleaching
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES528138A
Other languages
English (en)
Other versions
ES528138A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Svenska Traforskningsinstitutet
Original Assignee
Svenska Traforskningsinstitutet
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 Traforskningsinstitutet filed Critical Svenska Traforskningsinstitutet
Publication of ES8505001A1 publication Critical patent/ES8505001A1/es
Publication of ES528138A0 publication Critical patent/ES528138A0/es
Granted legal-status Critical Current

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Detergent Compositions (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Graft Or Block Polymers (AREA)

Abstract

PROCEDIMIENTO PARA EL BLANQUEO CON PEROXIDO DE MATERIAL CONTENIENDO LIGNOCELULOSA.COMPRENDE: A) REALIZAR, ANTES DE MEZCLAR AL MATERIAL CON LA PASTA, UN BLANQUEO CON PEROXIDO HIPERALCALINO, A UN PH IGUAL A 12, MEDIDO EN EL LICOR DE BLANQUEO A 24JC Y A UNA TEMPERATURA ENTRE 40 Y 95JC, PARA INCREMENTAR LA RESISTENCIA DEL MATERIAL; B) MEZCLAR A LA PASTA QUIMICA CON EL MATERIAL; Y C) LAVAR A LA PASTA CON LIQUIDO DE BLANQUEO QUE TIENE UNA CARGA DE PEROXIDO DE 1 A 8 CALCULADO SOBRE LA PASTA Y UN PH DOS UNIDADES INFERIOR AL PH DE LA ETAPA (A), PARA INCREMENTAR SU BRILLANTEZ.
ES528138A 1982-12-17 1983-12-16 Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa Granted ES528138A0 (es)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number Publication Date
ES8505001A1 true ES8505001A1 (es) 1985-04-16
ES528138A0 ES528138A0 (es) 1985-04-16

Family

ID=20349053

Family Applications (1)

Application Number Title Priority Date Filing Date
ES528138A Granted ES528138A0 (es) 1982-12-17 1983-12-16 Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa

Country Status (13)

Country Link
US (1) US4734160A (es)
EP (1) EP0128190B1 (es)
JP (1) JPS60500263A (es)
AT (1) ATE36565T1 (es)
BR (1) BR8307656A (es)
CA (1) CA1234655A (es)
DE (1) DE3377724D1 (es)
ES (1) ES528138A0 (es)
FI (1) FI843242A (es)
IT (1) IT1197760B (es)
NO (1) NO163631C (es)
SE (1) SE452346C (es)
WO (1) WO1984002366A1 (es)

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 1987-05-18 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
NO843255L (no) 1984-08-15
ES528138A0 (es) 1985-04-16
IT8349543A0 (it) 1983-12-19
EP0128190A1 (en) 1984-12-19
IT1197760B (it) 1988-12-06
SE8207236L (sv) 1984-06-18
DE3377724D1 (en) 1988-09-22
WO1984002366A1 (en) 1984-06-21
JPS60500263A (ja) 1985-02-28
US4734160A (en) 1988-03-29
FI843242A0 (fi) 1984-08-16
SE452346C (sv) 1990-03-26
CA1234655A (en) 1988-04-05
EP0128190B1 (en) 1988-08-17
ATE36565T1 (de) 1988-09-15
NO163631B (no) 1990-03-19
SE452346B (sv) 1987-11-23
BR8307656A (pt) 1984-12-11
FI843242A (fi) 1984-08-16
NO163631C (no) 1990-06-27
SE8207236D0 (sv) 1982-12-17

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