ES2096441T3 - Procedimiento para deslignificar pasta que contiene lignocelulosa. - Google Patents
Procedimiento para deslignificar pasta que contiene lignocelulosa.Info
- Publication number
- ES2096441T3 ES2096441T3 ES94901143T ES94901143T ES2096441T3 ES 2096441 T3 ES2096441 T3 ES 2096441T3 ES 94901143 T ES94901143 T ES 94901143T ES 94901143 T ES94901143 T ES 94901143T ES 2096441 T3 ES2096441 T3 ES 2096441T3
- Authority
- ES
- Spain
- Prior art keywords
- pulp
- peracid
- complexant
- lignify
- procedure
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
-
- 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
- D21C9/1057—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
-
- 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)
Abstract
EL PRESENTE INVENTO SE REFIERE A UN PROCESO PARA DELIGNIFICAR Y BLANQUEAR PULPA CON LIGNOCELULOSA, EN EL QUE LA PULPA SE DELIGNIFICA CON UN PERACIDO O SU SAL, TRATADA CON UN AGENTE COMPOSICION, Y SE BLANQUEA SUBSIGUIENTEMENTE CON UN AGENTE DE BLANQUEO LIBRE DE CLORO. POR CONVENIENCIA, LA DELIGNIFICACION SE LLEVA A CABO CON ACIDO PERACETICO MUY OXIDANTE, PRODUCIENDO UN CONSIDERABLE AUMENTO EN BRILLANTEZ Y UNA CONSIDERABLE REDUCCION DEL NUMERO KAPPA TRAS EL BLANQUEO CON UN AGENTE BLANQUEADOR SIN CLORO QUE COMPRENDE AL MENOS UN COMPONENTE CON PEROXIDO, OZONO O DITIONITA DE SODIO, O SECUENCIAS OPCIONALES O SUS MEZCLAS. EL EFECTO DE AUMENTO DE BRILLANTEZ ES ALTAMENTE SELECTIVO, ES DECIR, LA VISCOSIDAD DE LA PULPA SE MANTIENE EN UNA EXTENSION COMPARATIVAMENTE GRANDE. TANTO LA DELIGNIFICACION COMO EL TRATAMIENTO CON UN AGENTE DE COMPOSICION SE LLEVAN A CABO VENTAJOSAMENTE EN UN PH CERCANO AL NEUTRO, MINIMIZANDO ENTONCES LA NECESIDAD DE AJUSTE DE PH Y HACIENDO POSIBLE USAR INTERNAMENTE EL LIQUIDO DE BLANQUEO GASTADO, POR EJ., PARA LAVADO DE PULPA. PARA EL BLANQUEO FINAL CON OZONO Y PEROXIDO DE HIDROGENO, ES POSIBLE CON EL PROCESO INVENTADO PRODUCIR PULPAS DE MADERA BLANDA QUE TIENEN UNA BRILLANTEZ SUPERIOR AL 90% ISO Y ELIMINAR PRACTICAMENTE TODA SOBRETENSION EN LA PULPA MANTENIENDO SUFICIENTE FIRMEZA DE PULPA.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE9203585A SE500605C2 (sv) | 1992-11-27 | 1992-11-27 | Delignifiering och blekning av lignocellulosahaltig massa med persyra och klorfritt blekmedel |
SE9300226A SE9300226D0 (sv) | 1993-01-26 | 1993-01-26 | Foerfarande foer delignifiering av lignocellulosahaltig massa |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2096441T3 true ES2096441T3 (es) | 1997-03-01 |
Family
ID=26661600
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES94901143T Expired - Lifetime ES2096441T3 (es) | 1992-11-27 | 1993-11-25 | Procedimiento para deslignificar pasta que contiene lignocelulosa. |
Country Status (16)
Country | Link |
---|---|
US (1) | US5785812A (es) |
EP (1) | EP0670928B2 (es) |
JP (1) | JP2864167B2 (es) |
AT (1) | ATE146833T1 (es) |
AU (1) | AU670659B2 (es) |
BR (1) | BR9307521A (es) |
CA (1) | CA2149648C (es) |
CZ (1) | CZ282692B6 (es) |
DE (1) | DE69306974T3 (es) |
ES (1) | ES2096441T3 (es) |
FI (1) | FI118571B (es) |
MX (1) | MX9307415A (es) |
NO (1) | NO307260B1 (es) |
NZ (1) | NZ258274A (es) |
PL (1) | PL309191A1 (es) |
WO (1) | WO1994012721A1 (es) |
Families Citing this family (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6007678A (en) * | 1992-11-27 | 1999-12-28 | Eka Nobel Ab | Process for delignification of lignocellulose-containing pulp with an organic peracid or salts thereof |
SE500616C2 (sv) * | 1993-06-08 | 1994-07-25 | Kvaerner Pulping Tech | Blekning av kemisk massa med peroxid vid övertryck |
CA2211223C (en) * | 1995-02-17 | 2002-04-30 | Ahlstrom Machinery Oy | Method of pretreating pulp to be bleached with peroxide |
US5656130A (en) * | 1995-04-28 | 1997-08-12 | Union Camp Holding, Inc. | Ambient temperature pulp bleaching with peroxyacid salts |
SE9501623L (sv) * | 1995-05-02 | 1996-11-03 | Sunds Defibrator Ind Ab | Blekning av massa |
USH1690H (en) * | 1995-07-20 | 1997-11-04 | Nye; Jeffrey | Process for bleaching kraft pulp |
FI105701B (fi) * | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
US5770011A (en) * | 1995-11-17 | 1998-06-23 | International Paper Company | Neutral monoperoxysulfate bleaching process |
FI104572B (fi) * | 1996-05-30 | 2000-02-29 | Kemira Chemicals Oy | Menetelmä kemiallisen massan valkaisemiseksi |
DE19704054C2 (de) | 1997-02-04 | 2000-08-10 | Stockhausen Chem Fab Gmbh | Verfahren zur Herstellung von Faserstoffen mit verbesserten Eigenschaften |
CN100430552C (zh) * | 2003-05-29 | 2008-11-05 | 中国科学院成都有机化学研究所 | 一种造纸制浆用蒸煮催化剂 |
US8476052B2 (en) * | 2003-12-03 | 2013-07-02 | Danisco Us Inc. | Enzyme for the production of long chain peracid |
US7754460B2 (en) | 2003-12-03 | 2010-07-13 | Danisco Us Inc. | Enzyme for the production of long chain peracid |
MXPA06005652A (es) | 2003-12-03 | 2006-08-17 | Genencor Int | Perhidrolasa. |
EP1607519B1 (en) | 2004-06-14 | 2008-02-20 | Warwick International Group Limited | Activator for pulp bleaching |
US7297225B2 (en) * | 2004-06-22 | 2007-11-20 | Georgia-Pacific Consumer Products Lp | Process for high temperature peroxide bleaching of pulp with cool discharge |
US8871722B2 (en) * | 2005-12-06 | 2014-10-28 | Danisco Us Inc. | Perhydrolase epitopes |
CN102016050A (zh) * | 2005-12-09 | 2011-04-13 | 金克克国际有限公司 | 用于去污的酰基转移酶 |
CN101421383B (zh) * | 2006-03-02 | 2011-12-14 | 金克克国际有限公司 | 表面活性漂白和动态pH |
US20080087390A1 (en) * | 2006-10-11 | 2008-04-17 | Fort James Corporation | Multi-step pulp bleaching |
US8317955B2 (en) | 2010-05-24 | 2012-11-27 | Marquip, Llc | Method for automatic setting of the rider roll/glue applicator roll gap on a glue machine |
US9551076B2 (en) | 2011-05-31 | 2017-01-24 | Clean Chemistry, Inc. | Electrochemical reactor and process |
US9517955B2 (en) | 2012-09-07 | 2016-12-13 | Clean Chemistry, Llc | System and method for generation of point of use reactive oxygen species |
AU2015311692B2 (en) | 2014-09-04 | 2020-10-08 | Clean Chemistry, Inc. | Method of water treatment utilizing a peracetate oxidant solution |
CN104313933A (zh) * | 2014-09-23 | 2015-01-28 | 华南理工大学 | 一种硫酸盐蔗渣浆绿色漂白方法 |
US10472265B2 (en) | 2015-03-26 | 2019-11-12 | Clean Chemistry, Inc. | Systems and methods of reducing a bacteria population in high hydrogen sulfide water |
US10883224B2 (en) | 2015-12-07 | 2021-01-05 | Clean Chemistry, Inc. | Methods of pulp fiber treatment |
CA3007778C (en) | 2015-12-07 | 2023-09-26 | Clean Chemistry, Inc. | Methods of microbial control |
US11136714B2 (en) | 2016-07-25 | 2021-10-05 | Clean Chemistry, Inc. | Methods of optical brightening agent removal |
US11311012B1 (en) | 2017-09-07 | 2022-04-26 | Clean Chemistry, Inc. | Bacterial control in fermentation systems |
US11001864B1 (en) | 2017-09-07 | 2021-05-11 | Clean Chemistry, Inc. | Bacterial control in fermentation systems |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5721591A (en) † | 1980-07-11 | 1982-02-04 | Mitsubishi Gas Chemical Co | Peroxide bleaching of wood pulp |
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 |
CA2053035C (en) * | 1990-10-12 | 1997-09-30 | Repap Enterprises Inc. | Chlorine-free wood pulps and process of making |
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. |
DE69226143T2 (de) * | 1991-10-04 | 1999-02-25 | Solvay Interox Inc | Verfahren zur Verbesserung der Selektivität bei der Delignifizierung von chemischem Zellstoff |
-
1993
- 1993-11-25 US US08/436,243 patent/US5785812A/en not_active Expired - Fee Related
- 1993-11-25 PL PL93309191A patent/PL309191A1/xx unknown
- 1993-11-25 MX MX9307415A patent/MX9307415A/es not_active IP Right Cessation
- 1993-11-25 CA CA002149648A patent/CA2149648C/en not_active Expired - Fee Related
- 1993-11-25 AU AU55832/94A patent/AU670659B2/en not_active Ceased
- 1993-11-25 CZ CZ951329A patent/CZ282692B6/cs not_active IP Right Cessation
- 1993-11-25 BR BR9307521-9A patent/BR9307521A/pt not_active IP Right Cessation
- 1993-11-25 EP EP94901143A patent/EP0670928B2/en not_active Expired - Lifetime
- 1993-11-25 NZ NZ258274A patent/NZ258274A/en unknown
- 1993-11-25 JP JP6513052A patent/JP2864167B2/ja not_active Expired - Fee Related
- 1993-11-25 AT AT94901143T patent/ATE146833T1/de not_active IP Right Cessation
- 1993-11-25 ES ES94901143T patent/ES2096441T3/es not_active Expired - Lifetime
- 1993-11-25 WO PCT/SE1993/001019 patent/WO1994012721A1/en active IP Right Grant
- 1993-11-25 DE DE69306974T patent/DE69306974T3/de not_active Expired - Fee Related
-
1995
- 1995-05-24 FI FI952552A patent/FI118571B/fi active IP Right Grant
- 1995-05-26 NO NO952076A patent/NO307260B1/no not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP2864167B2 (ja) | 1999-03-03 |
NO952076L (no) | 1995-07-27 |
DE69306974T3 (de) | 2004-01-08 |
NO952076D0 (no) | 1995-05-26 |
DE69306974D1 (de) | 1997-02-06 |
JPH08503750A (ja) | 1996-04-23 |
NO307260B1 (no) | 2000-03-06 |
US5785812A (en) | 1998-07-28 |
FI952552A0 (fi) | 1995-05-24 |
MX9307415A (es) | 1994-07-29 |
CA2149648C (en) | 2000-09-19 |
DE69306974T2 (de) | 1997-05-22 |
PL309191A1 (en) | 1995-09-18 |
CZ282692B6 (cs) | 1997-09-17 |
ATE146833T1 (de) | 1997-01-15 |
FI952552A (fi) | 1995-05-24 |
CZ132995A3 (en) | 1996-02-14 |
AU5583294A (en) | 1994-06-22 |
EP0670928B1 (en) | 1996-12-27 |
NZ258274A (en) | 1996-08-27 |
FI118571B (fi) | 2007-12-31 |
BR9307521A (pt) | 1999-08-31 |
EP0670928B2 (en) | 2003-04-16 |
EP0670928A1 (en) | 1995-09-13 |
WO1994012721A1 (en) | 1994-06-09 |
AU670659B2 (en) | 1996-07-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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