BRPI0907550A2 - Método de alvejar um polpa - Google Patents

Método de alvejar um polpa

Info

Publication number
BRPI0907550A2
BRPI0907550A2 BRPI0907550-0A BRPI0907550A BRPI0907550A2 BR PI0907550 A2 BRPI0907550 A2 BR PI0907550A2 BR PI0907550 A BRPI0907550 A BR PI0907550A BR PI0907550 A2 BRPI0907550 A2 BR PI0907550A2
Authority
BR
Brazil
Prior art keywords
bleaching
pulp
Prior art date
Application number
BRPI0907550-0A
Other languages
English (en)
Inventor
Marten Dahl
Sara Eriksson
SOLVEIG NORDéN
Original Assignee
Metso Paper Inc
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 Metso Paper Inc filed Critical Metso Paper Inc
Publication of BRPI0907550A2 publication Critical patent/BRPI0907550A2/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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BRPI0907550-0A 2008-02-28 2009-02-12 Método de alvejar um polpa BRPI0907550A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0800475A SE532370C2 (sv) 2008-02-28 2008-02-28 Metod för blekning av en massa
PCT/SE2009/050152 WO2009108111A1 (en) 2008-02-28 2009-02-12 Method of bleaching a pulp

Publications (1)

Publication Number Publication Date
BRPI0907550A2 true BRPI0907550A2 (pt) 2015-08-04

Family

ID=41016339

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0907550-0A BRPI0907550A2 (pt) 2008-02-28 2009-02-12 Método de alvejar um polpa

Country Status (6)

Country Link
US (1) US8257550B2 (pt)
EP (1) EP2247782B1 (pt)
CN (1) CN101960069B (pt)
BR (1) BRPI0907550A2 (pt)
SE (1) SE532370C2 (pt)
WO (1) WO2009108111A1 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
US8402660B1 (en) 2009-10-07 2013-03-26 Lift-U, Division Of Hogan Mfg., Inc. Ramp assembly installation method
DE102010001001A1 (de) 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Verfahren zur Delignifizierung und Bleiche von Zellstoff
CN102182093B (zh) * 2011-03-31 2012-08-22 重庆理文造纸有限公司 一种竹材溶解浆的漂白工艺
CN102352572B (zh) * 2011-09-30 2013-07-24 重庆理文造纸有限公司 一种竹材溶解浆的制备方法
CN102877347B (zh) * 2012-09-18 2015-05-13 恒天海龙股份有限公司 利用化学纸浆制备溶解浆的漂白工艺
KR20160085281A (ko) 2013-11-06 2016-07-15 에보닉 데구사 게엠베하 펄프의 탈리그닌화 및 표백 방법
CN113550167A (zh) * 2021-07-29 2021-10-26 陕西科技大学 一种草浆的无元素氯漂白方法

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1404605A (fr) * 1964-05-22 1965-07-02 Air Liquide Perfectionnement à la délignification des pâtes chimiques de cellulose
US4238281A (en) * 1979-04-30 1980-12-09 Canadian International Paper Company Simplified bleaching process
CA2067750A1 (en) * 1989-10-19 1991-04-20 Hou-Min Chang Chlorine dioxide pulp bleaching process using sequential chlorine addition
SE466062B (sv) 1990-04-30 1991-12-09 Sunds Defibrator Ind Ab Blekning av kemisk massa
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making
US5938892A (en) * 1991-01-28 1999-08-17 Champion International Corporation Process for recycling bleach plant filtrate
BE1006056A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
SE9303037L (sv) 1993-09-16 1995-03-17 Sunds Defibrator Ind Ab Blekning av pappersmassa
CN1100177C (zh) * 2000-07-20 2003-01-29 华南理工大学 硫酸盐木浆高温二氧化氯漂白方法
SE516969C2 (sv) * 2000-08-14 2002-03-26 Metso Paper Inc Klordioxidblekning i två steg med återföring av filtrat
SE518692C2 (sv) * 2001-03-20 2002-11-05 Metso Paper Inc Blekning av massa med klordioxid
SE526162C2 (sv) 2002-01-23 2005-07-19 Kvaerner Pulping Tech Tillverkning av färdigblekt lövvedsmassa i ett klordioxidsteg följt av ett trycksatt peroxidsteg
JP2003342886A (ja) * 2002-05-27 2003-12-03 Nippon Paper Industries Co Ltd パルプの漂白処理方法
US20050045291A1 (en) * 2002-08-08 2005-03-03 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
CN1940177A (zh) * 2006-09-01 2007-04-04 华泰集团有限公司 植物纤维浆料三段漂白工艺
FI122241B (fi) * 2007-06-15 2011-10-31 Andritz Oy Menetelmä massan pesun yhteydessä sellutehtaalla
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
SE532470C2 (sv) * 2008-05-13 2010-02-02 Metso Paper Inc Slutblekning av oxygendelignifierad massa med ozon, klordioxid och peroxid
DE102010001001A1 (de) * 2010-01-19 2011-07-21 Evonik Degussa GmbH, 45128 Verfahren zur Delignifizierung und Bleiche von Zellstoff

Also Published As

Publication number Publication date
US20110036524A1 (en) 2011-02-17
WO2009108111A1 (en) 2009-09-03
US8257550B2 (en) 2012-09-04
CN101960069A (zh) 2011-01-26
SE532370C2 (sv) 2009-12-29
EP2247782A4 (en) 2013-11-06
SE0800475L (sv) 2009-08-29
EP2247782A1 (en) 2010-11-10
CN101960069B (zh) 2013-02-06
EP2247782B1 (en) 2014-07-02

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 3A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2344 DE 08-12-2015 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.

B25E Requested change of name of applicant rejected

Owner name: METSO PAPER INC. (FI)

B25H Request for change of headquarter rejected

Owner name: METSO PAPER INC. (FI)