BR9302765A - Processo para melhorar a seletividade da deslignificacao de uma pasta quimica de papel por meio de um peroxiacido organico e aplicacao de mesmo - Google Patents
Processo para melhorar a seletividade da deslignificacao de uma pasta quimica de papel por meio de um peroxiacido organico e aplicacao de mesmoInfo
- Publication number
- BR9302765A BR9302765A BR9302765A BR9302765A BR9302765A BR 9302765 A BR9302765 A BR 9302765A BR 9302765 A BR9302765 A BR 9302765A BR 9302765 A BR9302765 A BR 9302765A BR 9302765 A BR9302765 A BR 9302765A
- Authority
- BR
- Brazil
- Prior art keywords
- peroxiacide
- designification
- selectivity
- organic
- improve
- 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
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE9200627A BE1006057A3 (fr) | 1992-07-06 | 1992-07-06 | Procede pour la delignification d'une pate a papier chimique. |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9302765A true BR9302765A (pt) | 1994-02-08 |
Family
ID=3886355
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9302765A BR9302765A (pt) | 1992-07-06 | 1993-07-05 | Processo para melhorar a seletividade da deslignificacao de uma pasta quimica de papel por meio de um peroxiacido organico e aplicacao de mesmo |
Country Status (15)
Country | Link |
---|---|
US (1) | US5552018A (pt) |
EP (1) | EP0578305B1 (pt) |
JP (1) | JPH06166976A (pt) |
AR (1) | AR247259A1 (pt) |
AT (1) | ATE163697T1 (pt) |
AU (1) | AU654624B2 (pt) |
BE (1) | BE1006057A3 (pt) |
BR (1) | BR9302765A (pt) |
CA (1) | CA2099513A1 (pt) |
DE (1) | DE69317169T2 (pt) |
ES (1) | ES2115719T3 (pt) |
FI (1) | FI933104A (pt) |
NZ (1) | NZ248028A (pt) |
SI (1) | SI9300363A (pt) |
SK (1) | SK70393A3 (pt) |
Families Citing this family (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR9307520A (pt) † | 1992-11-27 | 1999-08-31 | Eka Nobel Ab | Processo para o alvejamento de polpa contendo lignocelulose |
BE1006881A3 (fr) * | 1993-03-02 | 1995-01-17 | Solvay Interox | Procede pour la delignification d'une pate a papier chimique. |
DE19516151A1 (de) | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
EP0801170A1 (fr) * | 1996-04-12 | 1997-10-15 | Chemoxal Sa | Procédé pour la délignification et/ou le blanchiment d'une pâte à papier |
FR2747408B1 (fr) * | 1996-04-12 | 1998-05-15 | Air Liquide | Procede pour la delignification et/ou le blanchiment d'une pate a papier |
FR2754550B1 (fr) * | 1996-10-15 | 1998-11-06 | Chemoxal Sa | Procede pour la delignification et/ou le blanchiment d'une pate a papier |
FR2747406B1 (fr) * | 1996-04-12 | 1998-08-28 | Air Liquide | Procede de delignification a l'oxygene d'une pate a papier |
US5939059A (en) * | 1997-08-13 | 1999-08-17 | Akzo Nobel Nv | Hair conditioner and 2 in 1 conditioning shampoo |
FI112958B (fi) * | 1997-12-19 | 2004-02-13 | Kemira Oyj | Menetelmä kemiallisen massan valkaisemiseksi sekä valkaisuliuoksen käyttö |
MY129053A (en) * | 2001-06-06 | 2007-03-30 | Thermphos Trading Gmbh | Composition for inhibiting calcium salt scale |
MY138251A (en) * | 2001-06-06 | 2009-05-29 | Thermphos Trading Gmbh | Method for inhibiting calcium salt scale |
EP1392914B1 (en) | 2001-06-06 | 2010-12-22 | Dequest AG | Method and aqueous composition for the production of improved pulp |
FI111745B (fi) * | 2001-12-19 | 2003-09-15 | Kemira Chemicals Oy | Parannettu kartonginvalmistusmenetelmä |
GB2391011A (en) * | 2002-07-19 | 2004-01-28 | Crosmill Ltd | Bleaching cellulose suspensions |
US20070131364A1 (en) * | 2005-12-14 | 2007-06-14 | University Of Maine | Process for treating a cellulose-lignin pulp |
US20100224336A1 (en) * | 2005-12-14 | 2010-09-09 | University Of Maine System Board Of Trustees | Process of bleaching a wood pulp |
CA2745466C (en) | 2008-12-08 | 2013-04-09 | Fpinnovations | Increasing alkaline pulping yield for softwood with metal ions |
US7960528B1 (en) | 2009-12-07 | 2011-06-14 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved peracid stability |
US7923233B1 (en) * | 2009-12-07 | 2011-04-12 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved peracid stability |
US7910347B1 (en) | 2009-12-07 | 2011-03-22 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved peracid stability |
US7932072B1 (en) | 2009-12-07 | 2011-04-26 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved peracid stability |
US7927854B1 (en) | 2009-12-07 | 2011-04-19 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved peracid stability |
US8445242B2 (en) * | 2010-03-26 | 2013-05-21 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved specific activity |
WO2011119710A1 (en) | 2010-03-26 | 2011-09-29 | E.I. Dupont De Nemours And Company | Perhydrolase providing improved specific activity |
CN102906256B (zh) | 2010-03-26 | 2014-08-06 | 纳幕尔杜邦公司 | 用于纯化蛋白质的方法 |
US8389254B2 (en) * | 2010-03-26 | 2013-03-05 | E.I. Du Pont De Nemours And Company | Perhydrolase providing improved specific activity |
US8450091B2 (en) * | 2010-03-26 | 2013-05-28 | E. I. Du Pont De Nemours And Company | Perhydrolase providing improved specific activity |
CN102822281A (zh) | 2010-03-26 | 2012-12-12 | 纳幕尔杜邦公司 | 包含聚芳硫醚的聚合物熔体 |
EP2654695B8 (en) | 2010-12-20 | 2020-03-04 | DuPont US Holding, LLC | Enzymatic peracid generation for use in oral care products |
CN103261430A (zh) | 2010-12-20 | 2013-08-21 | 纳幕尔杜邦公司 | 靶向过水解酶 |
WO2012087790A1 (en) | 2010-12-21 | 2012-06-28 | E.I. Dupont De Nemours And Company | Perhydrolase variant providing improved specific activity |
WO2012087788A1 (en) | 2010-12-21 | 2012-06-28 | E.I. Dupont De Nemours And Company | Perhydrolase variant providing improved specific activity |
WO2012087793A1 (en) | 2010-12-21 | 2012-06-28 | E.I. Dupont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8389259B2 (en) | 2010-12-21 | 2013-03-05 | E.I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8394616B2 (en) | 2010-12-21 | 2013-03-12 | E.I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8389257B2 (en) | 2010-12-21 | 2013-03-05 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8394617B2 (en) | 2010-12-21 | 2013-03-12 | E.I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
WO2012087785A1 (en) | 2010-12-21 | 2012-06-28 | E.I. Dupont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8735125B2 (en) | 2011-10-25 | 2014-05-27 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8546120B2 (en) | 2011-10-25 | 2013-10-01 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8809030B2 (en) | 2011-10-25 | 2014-08-19 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8557556B2 (en) | 2011-10-25 | 2013-10-15 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8956843B2 (en) | 2011-10-25 | 2015-02-17 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8962294B2 (en) | 2011-10-25 | 2015-02-24 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8501447B2 (en) | 2011-10-25 | 2013-08-06 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
WO2013062885A1 (en) | 2011-10-25 | 2013-05-02 | E.I. Dupont De Nemours And Company | Perhydrolase variant providing improved specific activity |
US8486679B2 (en) | 2011-10-25 | 2013-07-16 | E. I. Du Pont De Nemours And Company | Perhydrolase variant providing improved specific activity |
WO2013096045A1 (en) | 2011-12-19 | 2013-06-27 | E. I. Du Pont De Nemours And Company | Perhydrolase variants providing improved specific activity in the presence of surfactant |
WO2013148184A1 (en) | 2012-03-30 | 2013-10-03 | E. I. Du Pont De Nemours And Company | Enzymes useful for peracid production |
RU2644330C2 (ru) | 2012-03-30 | 2018-02-08 | Е.И. Дюпон Де Немур Энд Компани | Ферменты, пригодные для получения перкислот |
CN104350154B (zh) | 2012-03-30 | 2020-12-29 | 纳幕尔杜邦公司 | 对于过酸的生产有用的酶 |
US8911977B2 (en) | 2012-03-30 | 2014-12-16 | E. I. Du Pont De Nemours And Company | Enzymes useful for peracid production |
WO2013148187A1 (en) | 2012-03-30 | 2013-10-03 | E. I. Du Pont De Nemours And Company | Enzymes useful for peracid production |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1014536A (fr) * | 1940-04-01 | 1952-08-18 | Du Pont | Perfectionnements au blanchiment des pâtes de bois |
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 |
ATE97179T1 (de) * | 1989-06-06 | 1993-11-15 | Eka Nobel Ab | Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen. |
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 |
-
1992
- 1992-07-06 BE BE9200627A patent/BE1006057A3/fr not_active IP Right Cessation
-
1993
- 1993-06-29 AT AT93201887T patent/ATE163697T1/de active
- 1993-06-29 US US08/083,180 patent/US5552018A/en not_active Expired - Fee Related
- 1993-06-29 EP EP93201887A patent/EP0578305B1/fr not_active Revoked
- 1993-06-29 ES ES93201887T patent/ES2115719T3/es not_active Expired - Lifetime
- 1993-06-29 DE DE69317169T patent/DE69317169T2/de not_active Revoked
- 1993-06-30 NZ NZ248028A patent/NZ248028A/en unknown
- 1993-07-02 AU AU41706/93A patent/AU654624B2/en not_active Ceased
- 1993-07-02 SK SK703-93A patent/SK70393A3/sk unknown
- 1993-07-02 CA CA002099513A patent/CA2099513A1/fr not_active Abandoned
- 1993-07-05 AR AR93325342A patent/AR247259A1/es active
- 1993-07-05 BR BR9302765A patent/BR9302765A/pt not_active Application Discontinuation
- 1993-07-06 JP JP5167131A patent/JPH06166976A/ja active Pending
- 1993-07-06 SI SI9300363A patent/SI9300363A/sl unknown
- 1993-07-06 FI FI933104A patent/FI933104A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
JPH06166976A (ja) | 1994-06-14 |
FI933104A0 (fi) | 1993-07-06 |
DE69317169T2 (de) | 1998-10-08 |
DE69317169D1 (de) | 1998-04-09 |
BE1006057A3 (fr) | 1994-05-03 |
AU654624B2 (en) | 1994-11-10 |
EP0578305A1 (fr) | 1994-01-12 |
NZ248028A (en) | 1995-12-21 |
ATE163697T1 (de) | 1998-03-15 |
US5552018A (en) | 1996-09-03 |
AU4170693A (en) | 1994-01-13 |
SK70393A3 (en) | 1994-05-11 |
EP0578305B1 (fr) | 1998-03-04 |
AR247259A1 (es) | 1994-11-30 |
FI933104A (fi) | 1994-01-07 |
ES2115719T3 (es) | 1998-07-01 |
SI9300363A (en) | 1994-03-31 |
CA2099513A1 (fr) | 1994-01-07 |
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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 |