BR9611258A - Tratamento ácido de polpa a alta temperatura em conexão com alvejamento - Google Patents
Tratamento ácido de polpa a alta temperatura em conexão com alvejamentoInfo
- Publication number
- BR9611258A BR9611258A BR9611258A BR9611258A BR9611258A BR 9611258 A BR9611258 A BR 9611258A BR 9611258 A BR9611258 A BR 9611258A BR 9611258 A BR9611258 A BR 9611258A BR 9611258 A BR9611258 A BR 9611258A
- Authority
- BR
- Brazil
- Prior art keywords
- bleaching
- connection
- pulp
- high temperature
- treatment
- Prior art date
Links
- 239000002253 acid Substances 0.000 title abstract 3
- 238000004061 bleaching Methods 0.000 title abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 230000003313 weakening effect Effects 0.000 abstract 1
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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI955007A FI102193B (fi) | 1995-10-20 | 1995-10-20 | Menetelmä ja laitteisto massan käsittelemiseksi |
SE9504147A SE516693C2 (sv) | 1995-10-20 | 1995-11-21 | Förfarande och apparatsystem för behandling av cellulosamassa med syra för sänkande av dess kappatal |
FI955878A FI105701B (fi) | 1995-10-20 | 1995-12-07 | Menetelmä ja laitteisto massan käsittelemiseksi |
FI960214A FI104574B (fi) | 1995-10-20 | 1996-01-07 | Menetelmä ja laitteisto massan käsittelemiseksi |
PCT/FI1996/000552 WO1997015713A1 (en) | 1995-10-20 | 1996-10-18 | Acid treatment of pulp at high temperature in connection with bleaching |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9611258A true BR9611258A (pt) | 1999-07-13 |
Family
ID=27444250
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9611258A BR9611258A (pt) | 1995-10-20 | 1996-10-18 | Tratamento ácido de polpa a alta temperatura em conexão com alvejamento |
Country Status (11)
Country | Link |
---|---|
US (2) | US6306253B2 (pt) |
EP (1) | EP0856080B1 (pt) |
AT (1) | ATE203291T1 (pt) |
AU (1) | AU7301696A (pt) |
BR (1) | BR9611258A (pt) |
CA (1) | CA2235325C (pt) |
DE (1) | DE69613989D1 (pt) |
ES (1) | ES2158355T3 (pt) |
FI (2) | FI105701B (pt) |
PT (1) | PT856080E (pt) |
WO (1) | WO1997015713A1 (pt) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6221487B1 (en) | 1996-08-23 | 2001-04-24 | The Weyerhauser Company | Lyocell fibers having enhanced CV properties |
US6331354B1 (en) | 1996-08-23 | 2001-12-18 | Weyerhaeuser Company | Alkaline pulp having low average degree of polymerization values and method of producing the same |
US6306334B1 (en) | 1996-08-23 | 2001-10-23 | The Weyerhaeuser Company | Process for melt blowing continuous lyocell fibers |
US6210801B1 (en) | 1996-08-23 | 2001-04-03 | Weyerhaeuser Company | Lyocell fibers, and compositions for making same |
US6235392B1 (en) | 1996-08-23 | 2001-05-22 | Weyerhaeuser Company | Lyocell fibers and process for their preparation |
US6605350B1 (en) | 1996-08-23 | 2003-08-12 | Weyerhaeuser Company | Sawdust alkaline pulp having low average degree of polymerization values and method of producing the same |
FI119383B (fi) * | 1998-03-06 | 2008-10-31 | Andritz Oy | Menetelmä massan käsittelemiseksi |
BE1012675A6 (fr) * | 1999-05-11 | 2001-02-06 | Solvay | Procede de blanchiment de pate a papier. |
US6797113B2 (en) | 1999-02-24 | 2004-09-28 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell pulps method |
US6685856B2 (en) | 1999-02-24 | 2004-02-03 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell products method |
US6686040B2 (en) | 1999-02-24 | 2004-02-03 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell products |
US6686039B2 (en) | 1999-02-24 | 2004-02-03 | Weyerhaeuser Company | Use of thinnings and other low specific gravity wood for lyocell pulps |
GB2382592A (en) * | 2001-11-30 | 2003-06-04 | Sca Hygiene Prod Gmbh | Use of ozone to enhance the wet strength of fibrous cellulosic material |
US20030131958A1 (en) * | 2001-11-30 | 2003-07-17 | Thomas Jaschinski | Use of ozone for increasing the wet strength of paper and nonwoven |
US20050051288A1 (en) * | 2003-09-09 | 2005-03-10 | Caifang Yin | Extended retention and medium consistency pulp treatment |
US8262850B2 (en) * | 2003-09-23 | 2012-09-11 | International Paper Company | Chemical activation and refining of southern pine kraft fibers |
SE526241C2 (sv) * | 2003-12-18 | 2005-08-02 | Metso Paper Inc | Förfarande för att surgöra lignocellulosahaltig massa före ozonblekning |
WO2005121442A1 (ja) * | 2004-06-08 | 2005-12-22 | Nippon Paper Industries Co., Ltd. | パルプの漂白方法 |
NZ562593A (en) | 2005-05-02 | 2011-05-27 | Int Paper Co | Ligno cellulosic materials and the products made therefrom, using an oxidizing agent with a transition metal catalyst |
US7914776B2 (en) * | 2005-10-07 | 2011-03-29 | Adolor Corporation | Solid dispersions of opioid antagonists |
EP1811080A1 (en) * | 2006-01-24 | 2007-07-25 | Solvay SA | Process for the bleaching of mechanical paper pulp |
FI123102B (fi) * | 2006-03-31 | 2012-11-15 | Laennen Tutkimus Western Res Inc Oy | Kemiallisen massan valkaisumenetelmä |
FI122626B (fi) * | 2006-03-31 | 2012-04-30 | Laennen Tutkimus Western Res Inc Oy | Kemiallisen massan valkaisumenetelmä |
FR2910027B1 (fr) * | 2006-12-13 | 2009-11-06 | Itt Mfg Enterprises Inc | Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature |
WO2008101952A1 (en) * | 2007-02-21 | 2008-08-28 | Solvay (Societe Anonyme) | Process for the bleaching of paper pulp |
US8262856B2 (en) * | 2007-06-18 | 2012-09-11 | Andritz Inc. | Processes and systems for the bleaching of lignocellulosic pulps following cooking with soda and anthraquinone |
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 |
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 |
MX357819B (es) | 2009-05-28 | 2018-07-25 | Gp Cellulose Gmbh Star | Celulosa modificada a partir de fibra kraft química y métodos para elaborarla y su uso. |
US9512237B2 (en) | 2009-05-28 | 2016-12-06 | Gp Cellulose Gmbh | Method for inhibiting the growth of microbes with a modified cellulose fiber |
AU2014229520B2 (en) | 2013-03-14 | 2017-09-21 | 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 |
MX357604B (es) | 2013-03-15 | 2018-07-16 | Gp Cellulose Gmbh | Una fibra kraft de baja viscosidad que tiene un contenido de carboxilo mejorado, y metodos para fabricar y usar la misma. |
CA3040734A1 (en) | 2016-11-16 | 2018-05-24 | Gp Cellulose Gmbh | Modified cellulose from chemical fiber and methods of making and using the same |
US11332886B2 (en) | 2017-03-21 | 2022-05-17 | International Paper Company | Odor control pulp composition |
JP7229904B2 (ja) * | 2019-11-29 | 2023-02-28 | 東京エレクトロン株式会社 | プラズマ処理装置における載置台のクリーニング方法およびプラズマ処理装置 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE225253C1 (pt) | 1969-02-25 | |||
GB1062734A (en) | 1963-03-21 | 1967-03-22 | Mo Och Domsjoe Ab | Improvements in or relating to bleaching cellulose pulp |
US3507743A (en) | 1965-02-23 | 1970-04-21 | Fmc Corp | Bleaching of wood pulps with reductive bleaching agents and thiourea |
US3992248A (en) | 1969-05-19 | 1976-11-16 | Stadler Hurter Limited | Continuous feeding system for treatment towers |
NO152907C (no) * | 1983-06-29 | 1985-12-11 | Peterson & Son As M | Fremgangsmaate til delignifisering av kjemisk masse. |
SE452345B (sv) | 1984-04-02 | 1987-11-23 | Kamyr Ab | Anordning for fordelning av suspension vid dess inforande i behandlingskerl |
US5089089A (en) * | 1984-12-31 | 1992-02-18 | Bear Island Paper Company | System for sulfonating mechanical pulp fibers |
US5034095A (en) | 1989-06-01 | 1991-07-23 | Oji Paper Co., Ltd. | Apparatus and process for the delignification of cellulose pulp |
FR2655668B1 (fr) * | 1989-12-11 | 1995-06-09 | Du Pin Cellulose | Procede de blanchiment de pates cellulosiques chimiques. |
SE470065C (sv) | 1991-04-30 | 1996-01-15 | Eka Nobel Ab | Behandling av kemisk massa med en syra och därefter en magnesium- och kalciumförening vid klorfri blekning |
US5372679A (en) | 1992-06-08 | 1994-12-13 | Air Products And Chemicals, Inc. | Reactor system for treating cellulosic pulp at a constant upward flow velocity |
WO1994012721A1 (en) * | 1992-11-27 | 1994-06-09 | Eka Nobel Ab | Process for delignification of lignocellulose-containing pulp |
EP0622491B2 (en) | 1993-04-20 | 2002-07-17 | Eka Chemicals AB | Method for bleaching lignocellulose-containing pulp |
BE1007700A3 (fr) * | 1993-11-04 | 1995-10-03 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
FI98839B (fi) | 1994-03-16 | 1997-05-15 | Ahlstrom Machinery Oy | Menetelmä massan valkaisemiseksi |
US5438737A (en) * | 1994-04-14 | 1995-08-08 | National Molding Corporation | Snap closure type buckle with quick release |
SE9402726L (sv) | 1994-08-16 | 1995-08-28 | Kvaerner Pulping Tech | Bleksekvens för kemisk massa innefattande ett sulfonerande bleksteg |
FI102301B1 (fi) * | 1994-10-13 | 1998-11-13 | Ahlstrom Machinery Oy | Menetelmä selluloosamassojen käsittelemiseksi |
CA2211223C (en) * | 1995-02-17 | 2002-04-30 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
-
1995
- 1995-12-07 FI FI955878A patent/FI105701B/fi active
-
1996
- 1996-01-07 FI FI960214A patent/FI104574B/fi active
- 1996-10-18 AU AU73016/96A patent/AU7301696A/en not_active Abandoned
- 1996-10-18 PT PT96934841T patent/PT856080E/pt unknown
- 1996-10-18 DE DE69613989T patent/DE69613989D1/de not_active Expired - Lifetime
- 1996-10-18 WO PCT/FI1996/000552 patent/WO1997015713A1/en active IP Right Grant
- 1996-10-18 BR BR9611258A patent/BR9611258A/pt not_active IP Right Cessation
- 1996-10-18 EP EP96934841A patent/EP0856080B1/en not_active Expired - Lifetime
- 1996-10-18 US US09/051,678 patent/US6306253B2/en not_active Expired - Lifetime
- 1996-10-18 ES ES96934841T patent/ES2158355T3/es not_active Expired - Lifetime
- 1996-10-18 CA CA002235325A patent/CA2235325C/en not_active Expired - Fee Related
- 1996-10-18 AT AT96934841T patent/ATE203291T1/de active
-
2001
- 2001-02-27 US US09/793,652 patent/US20010020521A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
FI960214A (fi) | 1997-04-21 |
CA2235325A1 (en) | 1997-05-01 |
DE69613989D1 (de) | 2001-08-23 |
FI955878A0 (fi) | 1995-12-07 |
FI104574B (fi) | 2000-02-29 |
PT856080E (pt) | 2001-11-30 |
CA2235325C (en) | 2006-02-14 |
US20010004005A1 (en) | 2001-06-21 |
ES2158355T3 (es) | 2001-09-01 |
ATE203291T1 (de) | 2001-08-15 |
FI955878A (fi) | 1997-04-21 |
AU7301696A (en) | 1997-05-15 |
US20010020521A1 (en) | 2001-09-13 |
FI105701B (fi) | 2000-09-29 |
FI960214A0 (fi) | 1996-01-17 |
EP0856080A1 (en) | 1998-08-05 |
WO1997015713A1 (en) | 1997-05-01 |
EP0856080B1 (en) | 2001-07-18 |
US6306253B2 (en) | 2001-10-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TC | Change of name | ||
EG | Technical examination (opinion): publication of technical examination (opinion) | ||
FB36 | Technical and formal requirements: requirement - article 36 of industrial property law | ||
FF | Decision: intention to grant | ||
B25F | Entry of change of name and/or headquarter and transfer of application, patent and certif. of addition of invention: change of name on requirement | ||
B25D | Requested change of name of applicant approved | ||
B25G | Requested change of headquarter approved | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] | ||
B21A | Patent or certificate of addition expired [chapter 21.1 patent gazette] |
Free format text: PATENTE EXTINTA EM 18/10/2016 |