ES2107399T3 - Proceso de blanqueamiento con peroxidos para material celulosico y lignocelulosico. - Google Patents
Proceso de blanqueamiento con peroxidos para material celulosico y lignocelulosico.Info
- Publication number
- ES2107399T3 ES2107399T3 ES95926123T ES95926123T ES2107399T3 ES 2107399 T3 ES2107399 T3 ES 2107399T3 ES 95926123 T ES95926123 T ES 95926123T ES 95926123 T ES95926123 T ES 95926123T ES 2107399 T3 ES2107399 T3 ES 2107399T3
- Authority
- ES
- Spain
- Prior art keywords
- pulp
- bleaching
- reaction
- hydrogen peroxide
- peroxide
- 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
- D21C9/1026—Other features in bleaching processes
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Detergent Compositions (AREA)
Abstract
LA PRESENTE INVENCION SE REFIERE A UN METODO PARA BLANQUEAR PULPA CELULOSICA Y LIGNOCELULOSICA CON PEROXIDO DE HIDROGENO COMO REACTIVO DE BLANQUEO QUE CONSTA DE UNA REACCION DE DOS PASOS: UN PASO CORTO A ALTA TEMPERATURA Y A UNA PRESION SUFICIENTE COMO PARA SUPRIMIR LA EBULLICION Y UN PASO MAS LARGO A TEMPERATURA REDUCIDA Y A PRESION ATMOSFERICA SUFICIENTE COMO PARA CONSUMIR UNA PARTE IMPORTANTE DEL PEROXIDO DE HIDROGENO QUE QUEDA TRAS LA FASE CORTA. EL METODO INCLUYE LOS PASOS DE: INTRODUCIR LA PULPA (15) CON UNA CONSISTENCIA DEL 10 % AL 18 %, EN UN MEZCLADOR (100) EN DONDE LA PULPA ES CALENTADA A UNA TEMPERATURA POR ENCIMA DE 100 (GRADOS) C; AÑADIR SUFICIENTE HIDROXIDO DE SODIO PARA LLEVAR A LA PULPA A UN PH DE 8,5; AÑADIR SUFICIENTE PEROXIDO DE HIDROGENO (36) PARA IGUALAR ENTRE APROXIMADAMENTE EL 0,5 % AL 5,0 % EN PESO DE PULPA; PASAR LA PULPA A TRAVES DE UNA COLUMNA DE REACTOR A PRESION (400) A UNA VELOCIDAD QUE PERMITA UN TIEMPO DE REACCION EN LA COLUMNA DE ENTRE 1 Y 30 MINUTOS; DEPOSITAR LA PULPA EN UNA TORRE DE REACCION Y DEJAR QUE PROSIGA LA REACCION DURANTE 1-5 HORAS HASTA QUE SE HAYA CONSUMIDO UNA PARTE IMPORTANTE DEL PEROXIDO DE HIDROGENO RESIDUAL. PUEDE SER DESEABLE INTRODUCIR LA PULPA EN UN MEZCLADOR Y AÑADIR ALCALI PARA REACTIVAR EL PEROXIDO DE HIDROGENO RESIDUAL DANDO A LA PULPA UN PH DE AL MENOS 9 ENTRE LOS PASOS DE BLANQUEO.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US27353994A | 1994-07-11 | 1994-07-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
ES2107399T1 ES2107399T1 (es) | 1997-12-01 |
ES2107399T3 true ES2107399T3 (es) | 2000-07-01 |
Family
ID=23044357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES95926123T Expired - Lifetime ES2107399T3 (es) | 1994-07-11 | 1995-06-29 | Proceso de blanqueamiento con peroxidos para material celulosico y lignocelulosico. |
Country Status (13)
Country | Link |
---|---|
EP (2) | EP0919661A1 (es) |
JP (1) | JP2787618B2 (es) |
CN (1) | CN1176673A (es) |
AT (1) | ATE189716T1 (es) |
BR (1) | BR9508388A (es) |
CA (1) | CA2194880A1 (es) |
DE (2) | DE797703T1 (es) |
ES (1) | ES2107399T3 (es) |
FI (1) | FI970104A (es) |
PT (1) | PT797703E (es) |
RU (1) | RU2141016C1 (es) |
WO (1) | WO1996001920A1 (es) |
ZA (1) | ZA955290B (es) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0834051B1 (en) * | 1995-06-20 | 2002-04-10 | Andritz-Ahlstrom OY | Method and apparatus for treating material which conducts heat poorly |
JP2002266272A (ja) * | 2001-03-12 | 2002-09-18 | Nippon Paper Industries Co Ltd | セルロース質繊維材料パルプの漂白方法 |
US20050051288A1 (en) * | 2003-09-09 | 2005-03-10 | Caifang Yin | Extended retention and medium consistency pulp treatment |
US7297225B2 (en) * | 2004-06-22 | 2007-11-20 | Georgia-Pacific Consumer Products Lp | Process for high temperature peroxide bleaching of pulp with cool discharge |
CN100412267C (zh) * | 2006-04-30 | 2008-08-20 | 华南理工大学 | 一种中浓纸浆过氧化氢双塔漂白方法 |
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 |
JP5585323B2 (ja) * | 2010-09-07 | 2014-09-10 | 王子ホールディングス株式会社 | 製紙用パルプの漂白方法 |
CN115821617B (zh) * | 2022-12-06 | 2024-01-05 | 金隆浆纸业(江苏)有限公司 | 一种纸浆漂白方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2613388B1 (fr) * | 1987-04-02 | 1990-05-04 | Atochem | Procede de blanchiment de pates |
FR2661430B1 (fr) * | 1990-04-30 | 1992-07-17 | Atochem | Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement. |
BE1006056A3 (fr) * | 1992-07-06 | 1994-05-03 | Solvay Interox | Procede pour le blanchiment d'une pate a papier chimique. |
SE500616C2 (sv) * | 1993-06-08 | 1994-07-25 | Kvaerner Pulping Tech | Blekning av kemisk massa med peroxid vid övertryck |
-
1995
- 1995-06-26 ZA ZA955290A patent/ZA955290B/xx unknown
- 1995-06-29 RU RU97101657A patent/RU2141016C1/ru active
- 1995-06-29 DE DE0797703T patent/DE797703T1/de active Pending
- 1995-06-29 EP EP98204179A patent/EP0919661A1/en not_active Withdrawn
- 1995-06-29 DE DE69515066T patent/DE69515066T2/de not_active Expired - Fee Related
- 1995-06-29 AT AT95926123T patent/ATE189716T1/de not_active IP Right Cessation
- 1995-06-29 CN CN95194090A patent/CN1176673A/zh active Pending
- 1995-06-29 PT PT95926123T patent/PT797703E/pt unknown
- 1995-06-29 CA CA002194880A patent/CA2194880A1/en not_active Abandoned
- 1995-06-29 EP EP95926123A patent/EP0797703B1/en not_active Revoked
- 1995-06-29 WO PCT/US1995/008137 patent/WO1996001920A1/en not_active Application Discontinuation
- 1995-06-29 BR BR9508388A patent/BR9508388A/pt not_active Application Discontinuation
- 1995-06-29 ES ES95926123T patent/ES2107399T3/es not_active Expired - Lifetime
- 1995-06-29 JP JP8504328A patent/JP2787618B2/ja not_active Ceased
-
1997
- 1997-01-10 FI FI970104A patent/FI970104A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
WO1996001920A1 (en) | 1996-01-25 |
FI970104A (fi) | 1997-03-10 |
ES2107399T1 (es) | 1997-12-01 |
CN1176673A (zh) | 1998-03-18 |
BR9508388A (pt) | 1998-07-14 |
JPH09508945A (ja) | 1997-09-09 |
ZA955290B (en) | 1996-12-27 |
DE69515066T2 (de) | 2001-04-19 |
FI970104A0 (fi) | 1997-01-10 |
EP0919661A1 (en) | 1999-06-02 |
ATE189716T1 (de) | 2000-02-15 |
EP0797703A1 (en) | 1997-10-01 |
DE797703T1 (de) | 1998-02-19 |
PT797703E (pt) | 2000-07-31 |
JP2787618B2 (ja) | 1998-08-20 |
CA2194880A1 (en) | 1996-01-25 |
DE69515066D1 (de) | 2000-03-16 |
RU2141016C1 (ru) | 1999-11-10 |
EP0797703B1 (en) | 2000-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4283251A (en) | Ozone effluent bleaching | |
CN115461509B (zh) | 硫酸组合物及其用途 | |
US4756798A (en) | Process for bleaching a mechanical pulp with hydrogen peroxide | |
FI88627B (fi) | Hoegtemperatur-hoegkonsistens-snabblekning | |
ES2107399T3 (es) | Proceso de blanqueamiento con peroxidos para material celulosico y lignocelulosico. | |
SE8904313L (sv) | Vaeteperoxid-blekningsprocess | |
KR20220138012A (ko) | 개질된 황산 및 그 용도 | |
GB1443765A (en) | Method of producing cellulose pulp of high birghtness | |
NO320946B1 (no) | Fremgangsmate for fremstilling av avlignifisert og bleket kjemisk papirmasse | |
ATE193912T1 (de) | Delignifizierung eines papierzellstoffs mittlerer konsistenz mittels sauerstoff | |
JPH0156197B2 (es) | ||
US3694309A (en) | Lignin-preserving bleaching of cellulose pulp | |
JPS57105200A (en) | Obtaining of water soluble sugars from cellulose containing material | |
NO166244B (no) | Fremgangsmaate for oppnaaelse av hoeylys lignocellulosemasse, og hoeylys mekanisk lignocellulosemasse. | |
JPH0336870B2 (es) | ||
JPH0475274B2 (es) | ||
SE8604459D0 (sv) | Styrning av peroxidblekning av olika massor | |
JP2001504558A (ja) | パルプの酸素脱リグニンのコントロール方法 | |
US20240052566A1 (en) | Optimization Of Chemical Consumption in Biomass Delignification | |
FI70440B (fi) | Foerfarande foer framstaellning av kemikaliska pappersmassor | |
WO1992008842A3 (en) | Method for producing dietary fibers from nonwoody lignocellulosic substrates by oxidation | |
FI970106A (fi) | Menetelmä puumassan valkaisemiseksi vetyperoksidia käyttäen | |
NO168490B (no) | Fremgangsmaate ved delignifisering av celluloseholdig materiale. | |
HU185045B (en) | Method for producing cellulose from annual plants chiefly from straw | |
JPS54106791A (en) | Removal of dissolved hydrogen from coolant of pressurized water reactor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
Ref document number: 797703 Country of ref document: ES |