FI111170B - Menetelmä kemiallisen paperimassan valkaisemiseksi - Google Patents

Menetelmä kemiallisen paperimassan valkaisemiseksi Download PDF

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Publication number
FI111170B
FI111170B FI933103A FI933103A FI111170B FI 111170 B FI111170 B FI 111170B FI 933103 A FI933103 A FI 933103A FI 933103 A FI933103 A FI 933103A FI 111170 B FI111170 B FI 111170B
Authority
FI
Finland
Prior art keywords
content
dry
pulp
dry mass
acid
Prior art date
Application number
FI933103A
Other languages
English (en)
Finnish (fi)
Swedish (sv)
Other versions
FI933103A0 (fi
FI933103A (fi
Inventor
Johan Devenyns
Francois Desprez
Nicholas Troughton
Paul Essemaeker
Original Assignee
Solvay Interox Sa
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 Sa filed Critical Solvay Interox Sa
Publication of FI933103A0 publication Critical patent/FI933103A0/fi
Publication of FI933103A publication Critical patent/FI933103A/fi
Application granted granted Critical
Publication of FI111170B publication Critical patent/FI111170B/fi

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)
FI933103A 1992-07-06 1993-07-06 Menetelmä kemiallisen paperimassan valkaisemiseksi FI111170B (fi)

Applications Claiming Priority (2)

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.
BE9200626 1992-07-06

Publications (3)

Publication Number Publication Date
FI933103A0 FI933103A0 (fi) 1993-07-06
FI933103A FI933103A (fi) 1994-01-07
FI111170B true FI111170B (fi) 2003-06-13

Family

ID=3886354

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933103A FI111170B (fi) 1992-07-06 1993-07-06 Menetelmä kemiallisen paperimassan valkaisemiseksi

Country Status (15)

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

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.
FR2719853B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de délignification et de blanchiment d'une pâte à papier chimique.
FR2719854B1 (fr) * 1994-05-11 1996-06-21 Atochem Elf Sa Procédé de préparation de pâtes à papier chimiques délignifiées et blanchies.
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
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.
EP2113044A1 (en) * 2007-02-21 2009-11-04 SOLVAY (Société Anonyme) Process for the bleaching of paper pulp
CA2709526C (en) * 2007-12-20 2016-02-02 Mitsubishi Gas Chemical Company Inc. Process for production of bleached pulp
EP2082991A1 (en) 2008-01-22 2009-07-29 Thermphos Trading GmbH Method of Water Treatment
EP2090646A1 (en) 2008-01-22 2009-08-19 Thermphos Trading GmbH Surface treatment composition containing phosphonic acid compounds
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
EP3800290B1 (en) 2012-01-12 2023-11-01 GP Cellulose GmbH A low viscosity kraft fiber having reduced yellowing properties and methods of making and using the same
RU2017128939A (ru) 2012-04-18 2019-02-04 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
MX2022003094A (es) * 2019-09-11 2022-04-11 Nicoventures Trading Ltd Metodos alternativos para blanquear el tabaco.
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
EP0402335B2 (en) * 1989-06-06 2001-03-14 Eka Chemicals AB Process for bleaching lignocellulose-containing pulps
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
US5246543A (en) * 1989-08-18 1993-09-21 Degussa Corporation Process for bleaching and delignification of lignocellulosic materials
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
CA2099881A1 (en) * 1991-01-03 1992-07-04 Omar F. Ali Chlorine-free process for bleaching lignocellulosic pulp
SE469842C (sv) * 1992-01-21 1996-01-15 Sunds Defibrator Ind Ab Blekning av kemisk massa med peroxid

Also Published As

Publication number Publication date
ATE143074T1 (de) 1996-10-15
FI933103A0 (fi) 1993-07-06
DE69304822D1 (de) 1996-10-24
SK70293A3 (en) 1994-04-06
AR247258A1 (es) 1994-11-30
NZ248029A (en) 1995-10-26
BE1006056A3 (fr) 1994-05-03
ES2094465T3 (es) 1997-01-16
EP0578304A1 (fr) 1994-01-12
SI9300362A (en) 1994-03-31
AU4170593A (en) 1994-01-13
CA2099827A1 (fr) 1994-01-07
EP0578304B1 (fr) 1996-09-18
AU654623B2 (en) 1994-11-10
US6221209B1 (en) 2001-04-24
DE69304822T2 (de) 1997-04-10
BR9302764A (pt) 1994-02-08
FI933103A (fi) 1994-01-07
JPH06166981A (ja) 1994-06-14

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