BR9302764A - Processo para o branqueamento de uma pasta quimica de papel,e,aplicacao - Google Patents

Processo para o branqueamento de uma pasta quimica de papel,e,aplicacao

Info

Publication number
BR9302764A
BR9302764A BR9302764A BR9302764A BR9302764A BR 9302764 A BR9302764 A BR 9302764A BR 9302764 A BR9302764 A BR 9302764A BR 9302764 A BR9302764 A BR 9302764A BR 9302764 A BR9302764 A BR 9302764A
Authority
BR
Brazil
Prior art keywords
whitening
application
paper pulp
chemical paper
chemical
Prior art date
Application number
BR9302764A
Other languages
English (en)
Inventor
Francois Desprez
Johan Devenyns
Nicholas Troughton
Paul Essemaeker
Original Assignee
Solvay Interox
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 Solvay Interox filed Critical Solvay Interox
Publication of BR9302764A publication Critical patent/BR9302764A/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
    • D21C9/1057—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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
BR9302764A 1992-07-06 1993-07-05 Processo para o branqueamento de uma pasta quimica de papel,e,aplicacao BR9302764A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9200626A BE1006056A3 (fr) 1992-07-06 1992-07-06 Procede pour le blanchiment d'une pate a papier chimique.

Publications (1)

Publication Number Publication Date
BR9302764A true BR9302764A (pt) 1994-02-08

Family

ID=3886354

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9302764A BR9302764A (pt) 1992-07-06 1993-07-05 Processo para o branqueamento de uma pasta quimica de papel,e,aplicacao

Country Status (15)

Country Link
US (1) US6221209B1 (pt)
EP (1) EP0578304B1 (pt)
JP (1) JPH06166981A (pt)
AR (1) AR247258A1 (pt)
AT (1) ATE143074T1 (pt)
AU (1) AU654623B2 (pt)
BE (1) BE1006056A3 (pt)
BR (1) BR9302764A (pt)
CA (1) CA2099827A1 (pt)
DE (1) DE69304822T2 (pt)
ES (1) ES2094465T3 (pt)
FI (1) FI111170B (pt)
NZ (1) NZ248029A (pt)
SI (1) SI9300362A (pt)
SK (1) SK70293A3 (pt)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9301960L (sv) * 1993-06-08 1994-07-25 Kvaerner Pulping Tech Blekning av kemisk massa med peroxid vid övertryck
US6605181B1 (en) * 1993-10-01 2003-08-12 Kvaerner Pulping Aktiebolag Peroxide bleach sequence including an acidic bleach stage and including a wash stage
BE1007757A3 (fr) * 1993-11-10 1995-10-17 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
FR2719854B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de préparation de pâtes à papier chimiques délignifiées et blanchies.
FR2719853B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de délignification et de blanchiment d'une pâte à papier chimique.
CA2194882A1 (en) * 1994-07-11 1996-01-25 Brian P. Roy High efficiency vessels for bleaching lignocellulosic, cellulosic and synthetic polymeric fibrous materials
ZA955290B (en) * 1994-07-11 1996-12-27 Ingersoll Rand Co Peroxide bleaching process for cellulosic and lignocellulosic material
US7001484B2 (en) 2000-05-04 2006-02-21 University Of New Brunswick Peroxide bleaching of wood pulp using stabilizers and sodium hydrosulfide reducing agent
US7351764B2 (en) * 2004-03-31 2008-04-01 Nalco Company Methods to enhance brightness of pulp and optimize use of bleaching chemicals
FR2912407B1 (fr) * 2007-02-14 2010-10-08 Arkema France Procede de fonctionnalisation des carbohydrates.
US20100101743A1 (en) * 2007-02-21 2010-04-29 Solvay (Societe Anonyme) Process for the bleaching of paper pulp
BRPI0821031B1 (pt) * 2007-12-20 2018-05-15 Mitsubishi Gas Chemical Company, Inc. Processo para produção de polpa alvejada
EP2090646A1 (en) 2008-01-22 2009-08-19 Thermphos Trading GmbH Surface treatment composition containing phosphonic acid compounds
EP2082991A1 (en) 2008-01-22 2009-07-29 Thermphos Trading GmbH Method of Water Treatment
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
EP2128331A1 (en) 2008-05-26 2009-12-02 SOLVAY (Société Anonyme) Process for the bleaching of paper pulp
US8034759B2 (en) * 2008-10-31 2011-10-11 Ecolab Usa Inc. Enhanced stability peracid compositions
US8845860B2 (en) 2010-09-16 2014-09-30 Georgia-Pacific Consumer Products Lp High brightness pulps from lignin rich waste papers
BR112014017164A8 (pt) 2012-01-12 2017-07-04 Gp Cellulose Gmbh método para produzir polpa kraft oxidada e fibras kraft de madeira macia
CN106968127B (zh) 2012-04-18 2019-03-01 Gp纤维素股份有限公司 用于粘胶溶液的针叶木牛皮纸浆
WO2021048770A1 (en) * 2019-09-11 2021-03-18 Nicoventures Trading Limited Alternative methods for whitening tobacco
US11937626B2 (en) 2020-09-04 2024-03-26 Nicoventures Trading Limited Method for whitening tobacco

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO144711C (no) * 1978-04-04 1981-10-21 Myrens Verksted As Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
GB8620222D0 (en) * 1986-08-20 1986-10-01 Abitibi Price Inc Peroxide bleaching
CA2005369A1 (en) * 1988-12-20 1990-06-20 Madhusudan D. Jayawant Process for improved alkaline oxidative delignification of cellulose pulp
US4946556A (en) * 1989-04-25 1990-08-07 Kamyr, Inc. Method of oxygen delignifying wood pulp with between stage washing
ES2038097T5 (es) * 1989-06-06 2001-05-01 Eka Chemicals Ab Procedimiento para blanquear pastas papeleras que contienen lignocelulosa.
US5246543A (en) * 1989-08-18 1993-09-21 Degussa Corporation Process for bleaching and delignification of lignocellulosic materials
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
EP0565625A1 (en) * 1991-01-03 1993-10-20 Union Camp Patent Holding, Inc. Chlorine-free process for bleaching lignocellulosic pulp
SE469842C (sv) * 1992-01-21 1995-09-22 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid

Also Published As

Publication number Publication date
DE69304822T2 (de) 1997-04-10
ATE143074T1 (de) 1996-10-15
DE69304822D1 (de) 1996-10-24
AU4170593A (en) 1994-01-13
AR247258A1 (es) 1994-11-30
CA2099827A1 (fr) 1994-01-07
EP0578304A1 (fr) 1994-01-12
SK70293A3 (en) 1994-04-06
FI111170B (fi) 2003-06-13
NZ248029A (en) 1995-10-26
FI933103A0 (fi) 1993-07-06
ES2094465T3 (es) 1997-01-16
US6221209B1 (en) 2001-04-24
FI933103A (fi) 1994-01-07
JPH06166981A (ja) 1994-06-14
AU654623B2 (en) 1994-11-10
SI9300362A (en) 1994-03-31
BE1006056A3 (fr) 1994-05-03
EP0578304B1 (fr) 1996-09-18

Similar Documents

Publication Publication Date Title
BR9302764A (pt) Processo para o branqueamento de uma pasta quimica de papel,e,aplicacao
BR9302765A (pt) Processo para melhorar a seletividade da deslignificacao de uma pasta quimica de papel por meio de um peroxiacido organico e aplicacao de mesmo
BR9307334A (pt) Produto de papel e composição de amaciamento químico
BR9306334A (pt) Processo para o branqueamento de polpa
BR9607343A (pt) Produto de papel absorvente dobrado melhorado e processo
BR9607125A (pt) Produto de papel macio e processo de fabricação de um papel macio
BR9404176A (pt) Processo para o branqueamento de uma pasta de papel química
BR9408596A (pt) Processo para alvejamento de polpa de madeira kraft
BR9206355A (pt) Processo de fabricação de papel e papel ou papelão
BR9603843A (pt) Processo para fazer papel
BR8907405A (pt) Processo para producao de produtos de papel,e processos para manipulacao e tratamento de pasta
BR9602134A (pt) Processo e máquina para o empacotamento de produtos
PT83745B (pt) Processo e aparelho para o branqueamento de pasta para o fabrico de papel
BR9205620A (pt) Polpa quimica, e, processo de branqueamento de polpa quimica.
BR9500843A (pt) Processo para melhorar a soltura de pasta de papel
BR9305899A (pt) Digestão modificada de polpa de papel seguida por branqueamento de ozônio
FI935563A0 (fi) Valspress, speciellt foer pappersindustri
BR9205762A (pt) Processo para o alvejamento de uma pasta química de papel e aplicação deste processo ao alvejamento das pastas kraft
BR9405943A (pt) Processo para a deslignificacão de uma pasta de papel quimica
FI925941A0 (fi) Paperikoneen kuivatusosa
FI933057A0 (fi) Klorfri process foer blekning av lignocellulosahaltig pappersmassa
BR9406395A (pt) Processo de produção de papel
FR2747407B1 (fr) Procede de delignification et de blanchiment de pates a papier chimiques
PT96816A (pt) Processo de branqueamento de pasta de papel
FI944840A0 (fi) Paperikoneen kaksiviirainen rainanmuodostaja

Legal Events

Date Code Title Description
EE Request for examination
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law