ES2088701T3 - Proceso asociado al blanqueo de pasta de papel. - Google Patents

Proceso asociado al blanqueo de pasta de papel.

Info

Publication number
ES2088701T3
ES2088701T3 ES94904044T ES94904044T ES2088701T3 ES 2088701 T3 ES2088701 T3 ES 2088701T3 ES 94904044 T ES94904044 T ES 94904044T ES 94904044 T ES94904044 T ES 94904044T ES 2088701 T3 ES2088701 T3 ES 2088701T3
Authority
ES
Spain
Prior art keywords
bleaching
pct
exceeding
vessel
pulp
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 - Lifetime
Application number
ES94904044T
Other languages
English (en)
Inventor
Petter Tibbling
Ulla Ekstrom
Erik Nilsson
Lars-Ove Larsson
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.)
Metso Fiber Karlstad AB
Original Assignee
Kvaerner Pulping Technologies 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20390198&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2088701(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kvaerner Pulping Technologies AB filed Critical Kvaerner Pulping Technologies AB
Application granted granted Critical
Publication of ES2088701T3 publication Critical patent/ES2088701T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
    • 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
    • D21C9/1026—Other features in bleaching processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Disintegrating Or Milling (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Food-Manufacturing Devices (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Abstract

EL INVENTO HACE REFERENCIA A UN PROCESO PARA EL BLANQUEO SIN CLORO DE PASTA QUIMICA EN ASOCIACION CON LA PRODUCCION DEL MISMO, DONDE UNA SUSPENSION DE LA PASTA TIENE PREFERENTEMENTE UNA CONCENTRACION QUE EXCEDE DE 8% DEL MATERIAL FIBROSO QUE CONTIENE CELULOSA Y DONDE LA PASTA QUE ENTRA EN UNA LINEA DE BLANQUEO DE FORMA CONTINUA A TRAVES DE AL MENOS UN RECIPIENTE BLANQUEADOR DE LA LINEA DE BLANQUEO, SE TRATA CON AL MENOS UN ACIDO PARA AJUSTAR EL PH A UN VALOR INFERIOR A 7 Y CON UN AGENTE QUELANTE, PARA SER A CONTINUACION BLANQUEADO EN AL MENOS UN NIVEL DE BRILLO SUPERIOR A 75% ISO, PREFERIBLEMENTE EXCEDIENDO UN 80% CON PEROXIDO DE HIDROGENO O LA CANTIDAD CORRESPONDIENTE DE OTRO PEROXIDO, EMPLEADO EN UNA CANTIDAD SUPERIOR A 5 KG/BDMT, EN LA QUE EL PEROXIDO BLANQUEADOR ACTUA EN EL VASO BLANQUEADOR A UNA TEMPERATURA ELEVADA Y A UNA PRESION QUE SUPERA 2 BAR, Y EN LA QUE EL AREA TRANSVERSAL DEL VASO BLANQUEADOR SUPERA 3M2 Y EL AREA DE LA SUPERFICIE DEL METAL EXPUESTA HACIA EL INTERIOR DEL VASO BLANQUEADOR ES INFERIOR A 4V M2, DONDE V INDICA EL VOLUMEN EN M3.
ES94904044T 1993-06-08 1993-11-18 Proceso asociado al blanqueo de pasta de papel. Expired - Lifetime ES2088701T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9301960A SE9301960L (sv) 1993-06-08 1993-06-08 Blekning av kemisk massa med peroxid vid övertryck

Publications (1)

Publication Number Publication Date
ES2088701T3 true ES2088701T3 (es) 1996-08-16

Family

ID=20390198

Family Applications (1)

Application Number Title Priority Date Filing Date
ES94904044T Expired - Lifetime ES2088701T3 (es) 1993-06-08 1993-11-18 Proceso asociado al blanqueo de pasta de papel.

Country Status (20)

Country Link
US (1) US5571377A (es)
EP (1) EP0677124B1 (es)
JP (1) JP2716104B2 (es)
CN (1) CN1044504C (es)
AT (1) ATE136073T1 (es)
AU (2) AU677373B2 (es)
BR (1) BR9306842A (es)
CA (1) CA2163985C (es)
CZ (1) CZ282874B6 (es)
DE (1) DE69302020T2 (es)
ES (1) ES2088701T3 (es)
FI (1) FI950526A (es)
GR (1) GR3020235T3 (es)
MA (1) MA23215A1 (es)
NO (1) NO954464D0 (es)
NZ (1) NZ259440A (es)
RU (1) RU2120511C1 (es)
SE (1) SE9301960L (es)
WO (2) WO1994029511A1 (es)
ZA (1) ZA943504B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI89516B (fi) 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
JP2926518B2 (ja) * 1994-07-11 1999-07-28 ベロイト・テクノロジーズ・インコーポレイテッド リグニンセルロース、セルロース及び合成高分子繊維材料の高効率漂白方法
ZA955290B (en) * 1994-07-11 1996-12-27 Ingersoll Rand Co Peroxide bleaching process for cellulosic and lignocellulosic material
SE514697C2 (sv) * 1994-08-31 2001-04-02 Valmet Fibertech Ab Eliminering av metalljoner vid blekning av massa
SE506809C2 (sv) * 1994-12-08 1998-02-16 Kvaerner Pulping Tech Metod för att säkert bedriva trycksatt peroxidblekning
US6007680A (en) * 1994-12-08 1999-12-28 Kvaerner Pulping Ab Apparatus for safely conducting pressurized peroxide bleaching
US5954066A (en) * 1995-01-25 1999-09-21 Kvaerner Pulping Ab Method for controlling chemical reaction
WO1996023929A1 (en) * 1995-01-31 1996-08-08 A. Ahlstrom Corporation Bleaching pulp with peroxide at superatmospheric pressure and in multiple stages
WO1996027705A1 (en) * 1995-03-03 1996-09-12 Macmillan Bloedel Limited Peroxide bleaching
FR2747407B1 (fr) * 1996-04-12 1998-05-07 Atochem Elf Sa Procede de delignification et de blanchiment de pates a papier chimiques
US6059927A (en) * 1997-09-23 2000-05-09 Queen's University At Kingston Method of reducing brightness reversion and yellowness (B*) of bleached mechanical wood pulps
US6699358B1 (en) 1998-05-15 2004-03-02 National Silicates Partnership Method for brightening chemical pulp with hydrogen peroxide using a magnesium compound in silicate solution
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
US20070131364A1 (en) * 2005-12-14 2007-06-14 University Of Maine Process for treating a cellulose-lignin pulp
US20100224336A1 (en) * 2005-12-14 2010-09-09 University Of Maine System Board Of Trustees Process of bleaching a wood pulp
FR2910027B1 (fr) * 2006-12-13 2009-11-06 Itt Mfg Enterprises Inc Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516447A (en) * 1947-02-24 1950-07-25 Elmer R Burling Method and apparatus for chemical treatment
GB1056126A (en) * 1964-02-17 1967-01-25 Ici Ltd Production of hydrogen peroxide
FI45574C (fi) * 1970-05-11 1972-07-10 Kymin Oy Kymmene Ab Menetelmä selluloosapitoisten aineiden valkaisemiseksi.
US3918898A (en) * 1972-12-06 1975-11-11 Jerome Katz Hydrogen peroxide bleaching solution and method
SE422818B (sv) * 1978-03-31 1982-03-29 Modo Chemetrics Ab Forfarande for foredling av allulosamassa genom blekning eller extrahering
US4427490A (en) * 1978-04-07 1984-01-24 International Paper Company Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
JPS56134362A (en) * 1980-03-26 1981-10-21 Toshiba Corp Position signal generating circuit for magnetic disk device
FR2520397A1 (fr) * 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen
SE452346C (sv) * 1982-12-17 1990-03-26 Sunds Defibrator Foerfarande foer peroxidblekning av lignocellulosahaltigt material i tvaa steg
FR2566015B1 (fr) * 1984-06-15 1986-08-29 Centre Tech Ind Papier Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
US4568420B1 (en) * 1984-12-03 1999-03-02 Int Paper Co Multi-stage bleaching process including an enhanced oxidative extraction stage
CA1249402A (en) * 1984-12-21 1989-01-31 Pulp And Paper Research Institute Of Canada Multistage brightening of high yield and ultra high- yield wood pulps
CA1251903A (en) * 1985-06-17 1989-04-04 Pulp And Paper Research Institute Of Canada Alkaline-peroxide-oxygen treatment of unbleached and chlorinated chemical pulps
SE467043B (sv) * 1989-02-13 1992-05-18 Milan Kolman Saett och anordning foer rening av en fibersuspension
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
FR2655668B1 (fr) * 1989-12-11 1995-06-09 Du Pin Cellulose Procede de blanchiment de pates cellulosiques chimiques.
AT393701B (de) * 1989-12-22 1991-12-10 Schmidding Wilh Gmbh & Co Verfahren zum bleichen von cellulosehaeltigen materialien sowie anlage zur durchfuehrung des verfahrens
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5171405A (en) * 1990-08-28 1992-12-15 Kamyr, Inc. Reactor having a discontinuous conduit means between surfaces of a downwardly extending stationary spiral
US5328564A (en) * 1990-09-17 1994-07-12 Kamyr, Inc. Modified digestion of paper pulp followed by ozone bleaching
JP2002517173A (ja) * 1991-01-03 2002-06-11 ユニオン キャンプ パテント ホウルディング インコーポレイテッド 塩素を使用しないリグノセルロースパルプの漂白法
SE470065C (sv) * 1991-04-30 1996-01-15 Eka Nobel Ab Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning
SE468355B (sv) * 1991-04-30 1992-12-21 Eka Nobel Ab Blekning av kemisk massa genom behandling med komplexbildare och ozon
ZA924351B (en) * 1991-06-27 1993-03-31 Ahlstroem Oy Ozone bleaching process
SE469842C (sv) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid
SE9201477L (sv) * 1992-05-11 1993-06-28 Kamyr Ab Saett vid blekning av massa utan anvaendning av klorkemikalier
EP0648260B1 (en) * 1992-06-26 2000-09-27 Kansas State University Research Foundation Fusobacterium necrophorum leukotoxoid vaccine
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE500353C2 (sv) * 1992-10-26 1994-06-06 Sca Wifsta Oestrand Ab Peroxidblekning av sulfatmassa med tillsats av magnesium före blekningen
SE9203366L (sv) * 1992-11-11 1994-05-12 Mo Och Domsjoe Ab Förfarande vid delignifiering och/eller blekning av cellulosamassa
FI925159A0 (fi) * 1992-11-13 1992-11-13 Ahlstroem Oy Foerfarande foer blekning av massa
ES2096441T3 (es) * 1992-11-27 1997-03-01 Eka Chemicals Ab Procedimiento para deslignificar pasta que contiene lignocelulosa.

Also Published As

Publication number Publication date
WO1994029511A1 (en) 1994-12-22
AU6987294A (en) 1995-01-03
US5571377A (en) 1996-11-05
CZ282874B6 (cs) 1997-11-12
BR9306842A (pt) 1998-12-08
CZ302294A3 (en) 1995-09-13
FI950526A0 (fi) 1995-02-07
EP0677124B1 (en) 1996-03-27
JPH08500154A (ja) 1996-01-09
JP2716104B2 (ja) 1998-02-18
CA2163985C (en) 2005-06-07
FI950526A (fi) 1995-02-07
SE500616C2 (sv) 1994-07-25
NO954464L (no) 1995-11-07
WO1994029515A1 (en) 1994-12-22
MA23215A1 (fr) 1994-12-31
CN1124988A (zh) 1996-06-19
NO954464D0 (no) 1995-11-07
RU2120511C1 (ru) 1998-10-20
DE69302020T2 (de) 1996-09-19
SE9301960L (sv) 1994-07-25
ATE136073T1 (de) 1996-04-15
CA2163985A1 (en) 1994-12-22
CN1044504C (zh) 1999-08-04
NZ259440A (en) 1996-08-27
DE69302020D1 (de) 1996-05-02
SE9301960D0 (sv) 1993-06-08
AU677373B2 (en) 1997-04-24
AU5824894A (en) 1995-01-03
EP0677124A1 (en) 1995-10-18
ZA943504B (en) 1995-01-23
GR3020235T3 (en) 1996-09-30

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