ATE143074T1 - Verfahren zum bleichen eines chemischen zellstoffs - Google Patents

Verfahren zum bleichen eines chemischen zellstoffs

Info

Publication number
ATE143074T1
ATE143074T1 AT93201886T AT93201886T ATE143074T1 AT E143074 T1 ATE143074 T1 AT E143074T1 AT 93201886 T AT93201886 T AT 93201886T AT 93201886 T AT93201886 T AT 93201886T AT E143074 T1 ATE143074 T1 AT E143074T1
Authority
AT
Austria
Prior art keywords
bleaching
chemical pulp
pulp
chemical
Prior art date
Application number
AT93201886T
Other languages
English (en)
Inventor
Francois Desprez
Johan Devenyns
Nicholas A 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
Application granted granted Critical
Publication of ATE143074T1 publication Critical patent/ATE143074T1/de

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
AT93201886T 1992-07-06 1993-06-29 Verfahren zum bleichen eines chemischen zellstoffs ATE143074T1 (de)

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
ATE143074T1 true ATE143074T1 (de) 1996-10-15

Family

ID=3886354

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93201886T ATE143074T1 (de) 1992-07-06 1993-06-29 Verfahren zum bleichen eines chemischen zellstoffs

Country Status (15)

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

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500616C2 (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.
BR9508387A (pt) * 1994-07-11 1997-11-25 Beloit Technologies Inc Vasos de alta eficiéncia pra alvejamento de materiais fibrosos lignocelulósicos celulósicos e poliméricos sintéticos
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
WO2009081714A1 (ja) * 2007-12-20 2009-07-02 Mitsubishi Gas Chemical Company, Inc. 漂白パルプの製造方法
EP2090646A1 (de) 2008-01-22 2009-08-19 Thermphos Trading GmbH Oberflächenbehandlungszusammensetzung mit Phosphonsäureverbindungen
EP2082991A1 (de) 2008-01-22 2009-07-29 Thermphos Trading GmbH Verfahren zur Wasseraufbereitung
SE532370C2 (sv) * 2008-02-28 2009-12-29 Metso Paper Inc Metod för blekning av en massa
EP2128331A1 (de) 2008-05-26 2009-12-02 SOLVAY (Société Anonyme) Verfahren zum Bleichen von Papierzellstoff
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
KR102093167B1 (ko) * 2012-01-12 2020-03-26 게페 첼루로제 게엠베하 황변 성질이 감소된 저 점성 크래프트 섬유 및 그의 제조 및 사용 방법
RU2636306C2 (ru) 2012-04-18 2017-11-21 ДжиПи СЕЛЛЬЮЛОУС ГМБХ Использование поверхностно-активного вещества для обработки пульпы и улучшение введения крафт-пульпы в волокно для получения вискозы и других вторичных волокнистых продуктов
EP4027817A1 (de) * 2019-09-11 2022-07-20 Nicoventures Trading Limited Alternative verfahren zum bleichen von tabak
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
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
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 (de) * 1991-01-03 1993-10-20 Union Camp Patent Holding, Inc. Verfahren zum chlorfreien bleichen von lignocellulosehaltigem zellstoff
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
DE69304822D1 (de) 1996-10-24
SK70293A3 (en) 1994-04-06
FI111170B (fi) 2003-06-13
BR9302764A (pt) 1994-02-08
DE69304822T2 (de) 1997-04-10
CA2099827A1 (fr) 1994-01-07
AU4170593A (en) 1994-01-13
AU654623B2 (en) 1994-11-10
US6221209B1 (en) 2001-04-24
FI933103A0 (fi) 1993-07-06
NZ248029A (en) 1995-10-26
AR247258A1 (es) 1994-11-30
ES2094465T3 (es) 1997-01-16
BE1006056A3 (fr) 1994-05-03
EP0578304A1 (de) 1994-01-12
SI9300362A (en) 1994-03-31
JPH06166981A (ja) 1994-06-14
FI933103A (fi) 1994-01-07
EP0578304B1 (de) 1996-09-18

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee