ATE252176T1 - Verfahren zur behandlung von chemischem zellstoff - Google Patents
Verfahren zur behandlung von chemischem zellstoffInfo
- Publication number
- ATE252176T1 ATE252176T1 AT97903408T AT97903408T ATE252176T1 AT E252176 T1 ATE252176 T1 AT E252176T1 AT 97903408 T AT97903408 T AT 97903408T AT 97903408 T AT97903408 T AT 97903408T AT E252176 T1 ATE252176 T1 AT E252176T1
- Authority
- AT
- Austria
- Prior art keywords
- pulp
- chemical pulp
- treating chemical
- delignification
- chelating agent
- Prior art date
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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI960756A FI115469B (fi) | 1996-02-19 | 1996-02-19 | Menetelmä kemiallisen selluloosamateriaalin käsittelemiseksi |
PCT/FI1997/000106 WO1997030208A1 (en) | 1996-02-19 | 1997-02-19 | Process for the treatment of chemical pulp |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE252176T1 true ATE252176T1 (de) | 2003-11-15 |
Family
ID=8545485
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT97903408T ATE252176T1 (de) | 1996-02-19 | 1997-02-19 | Verfahren zur behandlung von chemischem zellstoff |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0882151B1 (de) |
AT (1) | ATE252176T1 (de) |
AU (1) | AU1797397A (de) |
DE (1) | DE69725558T2 (de) |
FI (1) | FI115469B (de) |
WO (1) | WO1997030208A1 (de) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19630278A1 (de) * | 1996-07-26 | 1998-01-29 | Basf Ag | Komplexbildner für die Zellstoff- und Holzstoffbleiche, die Papierherstellung sowie das Deinking von Altpapier |
CA2310278A1 (en) * | 1997-11-25 | 1999-06-03 | Amylum Belgium N.V. | Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions |
KR100260833B1 (ko) * | 1997-12-27 | 2000-07-01 | 차동천 | 고수율기계펄프의 제조방법 |
FI106258B (fi) | 1998-03-09 | 2000-12-29 | Kemira Chemicals Oy | Menetelmiä N-bis-[2-(1,2-dikarboksi-etoksi)-etyyli]amiinijohdannaisen valmistamiseksi sekä menetelmien tuotteet ja niiden käytöt |
BE1011784A3 (fr) * | 1998-03-10 | 2000-01-11 | Solvay | Procede de blanchiment de pate a papier. |
BE1011785A3 (fr) * | 1998-03-10 | 2000-01-11 | Solvay | Procede de blanchiment et/ou de delignification de pates a papier chimiques. |
ES2209420T3 (es) * | 1998-04-17 | 2004-06-16 | Alberta Research Council, Inc. | Metodo de produccion de pulpa lignocelulosica a partir de especies no leñosas. |
FI991241A (fi) * | 1999-06-01 | 2000-12-02 | Aga Ab | Ligniinin valkaisu ja menetelmä paperin valmistamiseksi |
GB2391011A (en) * | 2002-07-19 | 2004-01-28 | Crosmill Ltd | Bleaching cellulose suspensions |
ES2456271T3 (es) | 2008-06-20 | 2014-04-21 | International Paper Company | Composición y hoja de registro con propiedades ópticas mejoradas |
GB0901207D0 (en) | 2009-01-26 | 2009-03-11 | Innospec Ltd | Chelating agents and methods relating thereto |
US9511167B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
US8778136B2 (en) | 2009-05-28 | 2014-07-15 | Gp Cellulose Gmbh | Modified cellulose from chemical kraft fiber and methods of making and using the same |
US9512563B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Surface treated modified cellulose from chemical kraft fiber and methods of making and using same |
US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
SE534885C2 (sv) * | 2009-11-11 | 2012-01-31 | Metso Paper Inc | Förfarande för att producera en pappersmassa från lignocellulosamaterial innehållande minst 0,5% SiO2 |
WO2014140852A2 (en) | 2013-03-14 | 2014-09-18 | Gp Cellulose Gmbh | A method of making highly functional, low viscosity kraft fiber using an acidic bleaching sequence and a fiber made by the process |
BR112015020000A2 (pt) | 2013-03-15 | 2017-07-18 | Gp Cellulose Gmbh | fibra kraft quimicamente modificada e métodos de fabricação da mesma |
WO2015138335A1 (en) * | 2014-03-12 | 2015-09-17 | Gp Cellulose Gmbh | A low viscosity kraft fiber having an enhanced carboxyl content and methods of making and using the same |
CA3040734A1 (en) | 2016-11-16 | 2018-05-24 | Gp Cellulose Gmbh | Modified cellulose from chemical fiber and methods of making and using the same |
CZ309643B6 (cs) * | 2021-07-21 | 2023-06-07 | Univerzita Pardubice | Hořečnaté sole derivátů asparagové kyseliny a jejich použití jako stabilizátorů peroxidu vodíku |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5362412A (en) * | 1991-04-17 | 1994-11-08 | Hampshire Chemical Corp. | Biodegradable bleach stabilizers for detergents |
GB9216408D0 (en) * | 1992-08-01 | 1992-09-16 | Procter & Gamble | Stabilized bleaching compositions |
DE4340043A1 (de) * | 1993-11-24 | 1995-06-01 | Henkel Kgaa | Verwendung Stickstoff-haltiger Komplexbildner bei der Holzstoffbleiche |
DE4445931A1 (de) * | 1994-12-22 | 1996-06-27 | Basf Ag | Verwendung von Hydroxyalkylaminocarbonsäuren als Komplexbildner |
-
1996
- 1996-02-19 FI FI960756A patent/FI115469B/fi not_active IP Right Cessation
-
1997
- 1997-02-19 AT AT97903408T patent/ATE252176T1/de not_active IP Right Cessation
- 1997-02-19 DE DE69725558T patent/DE69725558T2/de not_active Expired - Lifetime
- 1997-02-19 AU AU17973/97A patent/AU1797397A/en not_active Abandoned
- 1997-02-19 EP EP97903408A patent/EP0882151B1/de not_active Expired - Lifetime
- 1997-02-19 WO PCT/FI1997/000106 patent/WO1997030208A1/en active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
FI960756A (fi) | 1997-08-20 |
EP0882151B1 (de) | 2003-10-15 |
DE69725558D1 (de) | 2003-11-20 |
DE69725558T2 (de) | 2004-08-05 |
WO1997030208A1 (en) | 1997-08-21 |
AU1797397A (en) | 1997-09-02 |
FI115469B (fi) | 2005-05-13 |
EP0882151A1 (de) | 1998-12-09 |
FI960756A0 (fi) | 1996-02-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RER | Ceased as to paragraph 5 lit. 3 law introducing patent treaties |