BR9307521A - Processo para a deslignificação e alvejamento de polpa contendo lignocelulose - Google Patents

Processo para a deslignificação e alvejamento de polpa contendo lignocelulose

Info

Publication number
BR9307521A
BR9307521A BR9307521-9A BR9307521A BR9307521A BR 9307521 A BR9307521 A BR 9307521A BR 9307521 A BR9307521 A BR 9307521A BR 9307521 A BR9307521 A BR 9307521A
Authority
BR
Brazil
Prior art keywords
pulp
delignification
peracid
complexant
bleaching
Prior art date
Application number
BR9307521-9A
Other languages
English (en)
Inventor
Magnus Linsten
Jiri Basta
Ann-Sofie Hallstrom
Original Assignee
Eka Nobel 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=26661600&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9307521(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE9203585A external-priority patent/SE500605C2/sv
Priority claimed from SE9300226A external-priority patent/SE9300226D0/xx
Application filed by Eka Nobel Ab filed Critical Eka Nobel Ab
Publication of BR9307521A publication Critical patent/BR9307521A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/1042—Use of chelating agents
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Abstract

Patente de Invenção: PROCESSO PARA A DESLIGNIFICAçãO E ALVEJAMENTO DE POLPA CONTENDO LIGNOCELULOSE. A presente invenção se refere a um processo para a deslignificação e alvejamento de polpa contendo lignocelulose, no qual a polpa é deslignificada com perácido ou um sal do mesmo, tratada com agente de complexação e subsequentemente alvejada com um agente de alvejamento contendo cloro. Adequadamente a deslignificação é realizada com ácido peracético fortemente oxidante, dando um aumento considerável no briho e consderável redução do número kappa depois de alvejamento com agente de alvejamento isento de cloro, compreedendo pelo meno um composto contendo peróxido, izónio ou ditionito de sódio, ou sequências opcionais ou misturas das mesmas. O efeito de aumento do brilho é altamente seletivo, isto é, a viscosidade da polpa é mantida em uma extensão comparativamente grande. A deslignificação e o tratamento com agente de complexação são vantajosamente realizados próximos do pH neutro, minimizando assim a necessidade de ajustamento do pH e tornando possível usar licor servido de alvejamento internamente, por exemplo, para lavagem da polpa. Por alvejamento final com ozónio e peróxido de hidrogênio, é possível com o processo da invenção, produzir polpas de madeira mola tendo brilho que excéde a 90 por cento ISO e remover praticamente toda a lignina na polpa , enquanto é mantida sufuciente resistência da polpa.
BR9307521-9A 1992-11-27 1993-11-25 Processo para a deslignificação e alvejamento de polpa contendo lignocelulose BR9307521A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9203585A SE500605C2 (sv) 1992-11-27 1992-11-27 Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel
SE9300226A SE9300226D0 (sv) 1993-01-26 1993-01-26 Foerfarande foer delignifiering av lignocellulosahaltig massa
PCT/SE1993/001019 WO1994012721A1 (en) 1992-11-27 1993-11-25 Process for delignification of lignocellulose-containing pulp

Publications (1)

Publication Number Publication Date
BR9307521A true BR9307521A (pt) 1999-08-31

Family

ID=26661600

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9307521-9A BR9307521A (pt) 1992-11-27 1993-11-25 Processo para a deslignificação e alvejamento de polpa contendo lignocelulose

Country Status (16)

Country Link
US (1) US5785812A (pt)
EP (1) EP0670928B2 (pt)
JP (1) JP2864167B2 (pt)
AT (1) ATE146833T1 (pt)
AU (1) AU670659B2 (pt)
BR (1) BR9307521A (pt)
CA (1) CA2149648C (pt)
CZ (1) CZ282692B6 (pt)
DE (1) DE69306974T3 (pt)
ES (1) ES2096441T3 (pt)
FI (1) FI118571B (pt)
MX (1) MX9307415A (pt)
NO (1) NO307260B1 (pt)
NZ (1) NZ258274A (pt)
PL (1) PL309191A1 (pt)
WO (1) WO1994012721A1 (pt)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6007678A (en) * 1992-11-27 1999-12-28 Eka Nobel Ab Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof
SE500616C2 (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
WO1996025552A1 (en) * 1995-02-17 1996-08-22 Ahlstrom Machinery Oy Method of pretreating pulp to be bleached with peroxide
US5656130A (en) * 1995-04-28 1997-08-12 Union Camp Holding, Inc. Ambient temperature pulp bleaching with peroxyacid salts
SE9501623L (sv) * 1995-05-02 1996-11-03 Sunds Defibrator Ind Ab Blekning av massa
USH1690H (en) * 1995-07-20 1997-11-04 Nye; Jeffrey Process for bleaching kraft pulp
FI105701B (fi) 1995-10-20 2000-09-29 Ahlstrom Machinery Oy Menetelmä ja laitteisto massan käsittelemiseksi
US5770011A (en) * 1995-11-17 1998-06-23 International Paper Company Neutral monoperoxysulfate bleaching process
FI104572B (fi) * 1996-05-30 2000-02-29 Kemira Chemicals Oy Menetelmä kemiallisen massan valkaisemiseksi
DE19704054C2 (de) 1997-02-04 2000-08-10 Stockhausen Chem Fab Gmbh Verfahren zur Herstellung von Faserstoffen mit verbesserten Eigenschaften
CN100430552C (zh) * 2003-05-29 2008-11-05 中国科学院成都有机化学研究所 一种造纸制浆用蒸煮催化剂
US8476052B2 (en) * 2003-12-03 2013-07-02 Danisco Us Inc. Enzyme for the production of long chain peracid
ES2361838T3 (es) 2003-12-03 2011-06-22 Danisco Us Inc. Perhidrolasa.
US7754460B2 (en) * 2003-12-03 2010-07-13 Danisco Us Inc. Enzyme for the production of long chain peracid
PT1607519E (pt) 2004-06-14 2008-04-16 Warwick Internat Group Ltd Activador para branqueamento de pasta
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
US8871722B2 (en) * 2005-12-06 2014-10-28 Danisco Us Inc. Perhydrolase epitopes
US20090311395A1 (en) * 2005-12-09 2009-12-17 Cervin Marguerite A ACYL Transferase Useful for Decontamination
CA2643265C (en) * 2006-03-02 2014-07-29 Genencor Division Danisco Us, Inc. Surface active bleach and dynamic ph
US20080087390A1 (en) * 2006-10-11 2008-04-17 Fort James Corporation Multi-step pulp bleaching
US8317955B2 (en) 2010-05-24 2012-11-27 Marquip, Llc Method for automatic setting of the rider roll/glue applicator roll gap on a glue machine
WO2012166997A2 (en) 2011-05-31 2012-12-06 Clean Chemistry, Llc Electrochemical reactor and process
WO2014039929A1 (en) 2012-09-07 2014-03-13 Clean Chemistry, Llc Systems and methods for generation of reactive oxygen species and applications thereof
AU2015311692B2 (en) 2014-09-04 2020-10-08 Clean Chemistry, Inc. Method of water treatment utilizing a peracetate oxidant solution
CN104313933A (zh) * 2014-09-23 2015-01-28 华南理工大学 一种硫酸盐蔗渣浆绿色漂白方法
CA2981034A1 (en) 2015-03-26 2016-09-29 Clean Chemistry, Inc. Systems and methods of reducing a bacteria population in high hydrogen sulfide water
WO2017100284A1 (en) * 2015-12-07 2017-06-15 Clean Chemistry, Inc. Methods of microbial control
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
US11001864B1 (en) 2017-09-07 2021-05-11 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721591A (en) * 1980-07-11 1982-02-04 Mitsubishi Gas Chemical Co Peroxide bleaching of wood pulp
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
CA2053035C (en) * 1990-10-12 1997-09-30 Repap Enterprises Inc. Chlorine-free wood pulps and process of making
BE1004674A3 (fr) * 1991-03-11 1993-01-12 Interox Internat Sa Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft.
EP0844328A3 (fr) * 1991-10-04 1998-07-15 Solvay Interox, Inc. Procédé pour l'amélioration de la sélectivité de la délignification d'une pâte à papier chimique

Also Published As

Publication number Publication date
US5785812A (en) 1998-07-28
JPH08503750A (ja) 1996-04-23
NO952076L (no) 1995-07-27
AU670659B2 (en) 1996-07-25
FI952552A (fi) 1995-05-24
DE69306974D1 (de) 1997-02-06
AU5583294A (en) 1994-06-22
MX9307415A (es) 1994-07-29
PL309191A1 (en) 1995-09-18
JP2864167B2 (ja) 1999-03-03
NO307260B1 (no) 2000-03-06
CZ282692B6 (cs) 1997-09-17
CA2149648C (en) 2000-09-19
EP0670928B1 (en) 1996-12-27
NO952076D0 (no) 1995-05-26
CZ132995A3 (en) 1996-02-14
WO1994012721A1 (en) 1994-06-09
DE69306974T3 (de) 2004-01-08
FI952552A0 (fi) 1995-05-24
NZ258274A (en) 1996-08-27
EP0670928B2 (en) 2003-04-16
FI118571B (fi) 2007-12-31
DE69306974T2 (de) 1997-05-22
ATE146833T1 (de) 1997-01-15
ES2096441T3 (es) 1997-03-01
EP0670928A1 (en) 1995-09-13

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