RU2097463C1 - Способ отбеливания лигноцеллюлозосодержащей пульпы - Google Patents

Способ отбеливания лигноцеллюлозосодержащей пульпы Download PDF

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Publication number
RU2097463C1
RU2097463C1 RU9595113460A RU95113460A RU2097463C1 RU 2097463 C1 RU2097463 C1 RU 2097463C1 RU 9595113460 A RU9595113460 A RU 9595113460A RU 95113460 A RU95113460 A RU 95113460A RU 2097463 C1 RU2097463 C1 RU 2097463C1
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RU
Russia
Prior art keywords
pulp
bleaching
hydrogen peroxide
complexing agent
peracetic acid
Prior art date
Application number
RU9595113460A
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English (en)
Russian (ru)
Other versions
RU95113460A (ru
Inventor
Линстен Магнус
Баста Йири
Хелльстрем Анна-Софи
Original Assignee
Ека Нобель Актиеболаг
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=26661599&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=RU2097463(C1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from SE9203584A external-priority patent/SE9203584D0/xx
Priority claimed from SE9300225A external-priority patent/SE9300225D0/xx
Application filed by Ека Нобель Актиеболаг filed Critical Ека Нобель Актиеболаг
Publication of RU95113460A publication Critical patent/RU95113460A/ru
Application granted granted Critical
Publication of RU2097463C1 publication Critical patent/RU2097463C1/ru

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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
    • D21C9/1026—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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
RU9595113460A 1992-11-27 1993-11-25 Способ отбеливания лигноцеллюлозосодержащей пульпы RU2097463C1 (ru)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
SE9203584-9 1992-11-27
SE9203584A SE9203584D0 (sv) 1992-11-27 1992-11-27 Foerfarande foer blekning av lignocellulosahaltig massa
SE9300225-1 1993-01-26
SE9300225A SE9300225D0 (sv) 1993-01-26 1993-01-26 Foerfarande foer blekning av lignocellulosahaltig massa
PCT/SE1993/001018 WO1994012722A1 (en) 1992-11-27 1993-11-25 Process for bleaching of lignocellulose-containing pulp

Publications (2)

Publication Number Publication Date
RU95113460A RU95113460A (ru) 1996-12-27
RU2097463C1 true RU2097463C1 (ru) 1997-11-27

Family

ID=26661599

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9595113460A RU2097463C1 (ru) 1992-11-27 1993-11-25 Способ отбеливания лигноцеллюлозосодержащей пульпы

Country Status (16)

Country Link
EP (1) EP0670929B2 (xx)
JP (1) JPH08503749A (xx)
AT (1) ATE141972T1 (xx)
AU (1) AU671337B2 (xx)
BR (1) BR9307520A (xx)
CA (1) CA2149649C (xx)
CZ (1) CZ285246B6 (xx)
DE (1) DE69304342T3 (xx)
ES (1) ES2091121T3 (xx)
FI (1) FI118572B (xx)
MX (1) MX9307413A (xx)
NO (1) NO306737B1 (xx)
NZ (1) NZ258273A (xx)
PL (1) PL309190A1 (xx)
RU (1) RU2097463C1 (xx)
WO (1) WO1994012722A1 (xx)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1007757A3 (fr) * 1993-11-10 1995-10-17 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
US5656130A (en) * 1995-04-28 1997-08-12 Union Camp Holding, Inc. Ambient temperature pulp bleaching with peroxyacid salts
USH1690H (en) * 1995-07-20 1997-11-04 Nye; Jeffrey Process for bleaching kraft pulp
SE9503004L (sv) * 1995-08-30 1997-03-01 Sunds Defibrator Ind Ab Blekning av massa
DE19704054C2 (de) * 1997-02-04 2000-08-10 Stockhausen Chem Fab Gmbh Verfahren zur Herstellung von Faserstoffen mit verbesserten Eigenschaften
US6702921B2 (en) * 2001-05-01 2004-03-09 Ondeo Nalco Company Methods to enhance pulp bleaching and delignification using an organic sulfide chelating agent
PL1607519T3 (pl) * 2004-06-14 2008-07-31 Warwick International Group Ltd Aktywator bielenia ścieru

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2219505C3 (de) † 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff
DE3005947B1 (de) † 1980-02-16 1981-01-29 Degussa Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure
JPS5721591A (en) † 1980-07-11 1982-02-04 Mitsubishi Gas Chemical Co Peroxide bleaching of wood pulp
DE402335T1 (de) * 1989-06-06 1992-04-09 Eka Nobel Ab, Surte Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
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.
DE4114135A1 (de) † 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Verfahren zur chlorfreien bleiche und delignifizierung von alkalizellstoff
ATE168149T1 (de) * 1991-10-04 1998-07-15 Solvay Interox Inc Verfahren zur verbesserung der selektivität bei der delignifizierung von chemischem zellstoff
BE1006057A3 (fr) † 1992-07-06 1994-05-03 Solvay Interox Procede pour la delignification d'une pate a papier chimique.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. EP, патент, 0415149, кл. D 21 C 9/16, 1991. 2. EP, патент, 0402335, кл. D 21 C 9/10, 1990. 3. WO, заявка, 92/15752, кл. D 21 C 9/16, 1992. 4. US, патент, 5091054, кл. D 21 C 9/147, 1992. *

Also Published As

Publication number Publication date
PL309190A1 (en) 1995-09-18
DE69304342D1 (de) 1996-10-02
CA2149649C (en) 2000-09-19
WO1994012722A1 (en) 1994-06-09
ES2091121T3 (es) 1996-10-16
FI118572B (fi) 2007-12-31
AU5583194A (en) 1994-06-22
NO306737B1 (no) 1999-12-13
FI952551A (fi) 1995-05-24
DE69304342T3 (de) 2004-07-01
RU95113460A (ru) 1996-12-27
JPH08503749A (ja) 1996-04-23
BR9307520A (pt) 1999-08-31
DE69304342T2 (de) 1997-03-06
NO952074L (no) 1995-07-26
AU671337B2 (en) 1996-08-22
EP0670929B1 (en) 1996-08-28
FI952551A0 (fi) 1995-05-24
NZ258273A (en) 1996-08-27
MX9307413A (es) 1994-07-29
EP0670929B2 (en) 2003-10-22
EP0670929A1 (en) 1995-09-13
NO952074D0 (no) 1995-05-26
ATE141972T1 (de) 1996-09-15
CZ132895A3 (en) 1996-01-17
CZ285246B6 (cs) 1999-06-16

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