BR9303032A - Processo para o tratamento de solucoes aquosas de processo,processo para melhorar a estabilidade de peroxido de hidrogenio introduzido em uma solucao aquosa de processamento,processo em multi-estagio para o alvejamento de polpa aquosa e processo para tratar solucoes do processo que contem microorganismos catalase positivos - Google Patents
Processo para o tratamento de solucoes aquosas de processo,processo para melhorar a estabilidade de peroxido de hidrogenio introduzido em uma solucao aquosa de processamento,processo em multi-estagio para o alvejamento de polpa aquosa e processo para tratar solucoes do processo que contem microorganismos catalase positivosInfo
- Publication number
- BR9303032A BR9303032A BR9303032A BR9303032A BR9303032A BR 9303032 A BR9303032 A BR 9303032A BR 9303032 A BR9303032 A BR 9303032A BR 9303032 A BR9303032 A BR 9303032A BR 9303032 A BR9303032 A BR 9303032A
- Authority
- BR
- Brazil
- Prior art keywords
- water
- treatment
- stability
- hydrogen peroxide
- improve
- Prior art date
Links
- 238000000034 method Methods 0.000 title 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title 2
- 238000007669 thermal treatment Methods 0.000 title 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
- D21C9/16—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
- D21C9/16—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)
- Agricultural Chemicals And Associated Chemicals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9216098A GB2269191A (en) | 1992-07-29 | 1992-07-29 | Method of treating aqueous process liquors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR9303032A true BR9303032A (pt) | 1994-03-01 |
Family
ID=10719482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR9303032A BR9303032A (pt) | 1992-07-29 | 1993-07-28 | Processo para o tratamento de solucoes aquosas de processo,processo para melhorar a estabilidade de peroxido de hidrogenio introduzido em uma solucao aquosa de processamento,processo em multi-estagio para o alvejamento de polpa aquosa e processo para tratar solucoes do processo que contem microorganismos catalase positivos |
Country Status (2)
| Country | Link |
|---|---|
| BR (1) | BR9303032A (pt) |
| GB (1) | GB2269191A (pt) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE505980C2 (sv) * | 1993-12-23 | 1997-10-27 | Bim Kemi Ab | Sätt att förhindra peroxidnedbrytande enzymer vid blekning med väteperoxid |
| DE4410663C1 (de) * | 1994-03-26 | 1995-08-17 | Benckiser Knapsack Ladenburg | Verfahren und Mittel zur oxidativen Bleiche von Holzstoffen und zum Deinken von Altpapier |
| SE512126C2 (sv) * | 1997-12-23 | 2000-01-31 | Btg Kaelle Inventing Ab | Förfarande för bestämning av mängden/aktiviteten katalas före eller i samband med blekning av företrädesvis i en massasuspension ingående cellulosafibrer |
| GB0001417D0 (en) * | 2000-01-22 | 2000-03-08 | Albright & Wilson Uk Ltd | Bleaching pulp |
| MXPA02012120A (es) | 2000-06-08 | 2003-06-06 | Lonza Ag | Donadores de aldehido para estabilizar peroxidos en aplicaciones de fabricacion de papel. |
| US20040200588A1 (en) * | 2003-04-10 | 2004-10-14 | Walker Jayne M.A. | Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes |
| GB0421359D0 (en) * | 2004-09-24 | 2004-10-27 | Basf Ag | Method for the inactivation of enzymes |
| US8246778B2 (en) | 2008-11-21 | 2012-08-21 | Buckman Laboratories International, Inc. | Method for controlling enzymatic decomposition of peroxide |
| ES2415831T3 (es) * | 2010-05-31 | 2013-07-29 | Kemira Oyj | Control de enzimas en la producción de pasta |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3005947B1 (de) * | 1980-02-16 | 1981-01-29 | Degussa | Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure |
| FR2550561B1 (fr) * | 1983-08-08 | 1986-08-08 | Interox | Procede pour la regeneration des vieux papiers |
| ES2120984T3 (es) * | 1991-10-04 | 1998-11-16 | Solvay Interox Inc | Un procedimiento para mejorar la selectividad de la deslignificacion de una pasta papelera quimica. |
-
1992
- 1992-07-29 GB GB9216098A patent/GB2269191A/en not_active Withdrawn
-
1993
- 1993-07-28 BR BR9303032A patent/BR9303032A/pt not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB2269191A (en) | 1994-02-02 |
| GB9216098D0 (en) | 1992-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BR8404609A (pt) | Processo para o tratamento de materias celulosicas por agentes oxidantes | |
| BR9007608A (pt) | Processo para tratamento de polpa quimica lignocelulosica | |
| SE9302409D0 (sv) | Massaframstaellning | |
| BR9303032A (pt) | Processo para o tratamento de solucoes aquosas de processo,processo para melhorar a estabilidade de peroxido de hidrogenio introduzido em uma solucao aquosa de processamento,processo em multi-estagio para o alvejamento de polpa aquosa e processo para tratar solucoes do processo que contem microorganismos catalase positivos | |
| BR9401526A (pt) | Processo para o alvejamento de polpa contendo ligno-celulose | |
| MY110386A (en) | Process for preventing splitting of bambo poles | |
| FI956062A0 (fi) | Dialdehydien ja niiden asetaalien käyttö peroksidin hajoamisen estämiseksi uusiomassan ja muun kuitumassan valmistuksessa ja käsittelyssä | |
| ES2016084B3 (es) | Procedimiento para el blanqueo y la delignificacion de productos con celulosa | |
| NZ238830A (en) | Continuous two stage bleaching process of pulp by treating portions of the pulp in the latter stages with peroxide; paper products and pulp produced thereby | |
| PT89361A (pt) | Processo para o branqueamento e esterilizacao de artigos de cortica e artigos de cortica branqueados pelo referido processo | |
| BR9404018A (pt) | Agente para tratamento de água, processo para tratar ágaua e processo para produzir um polímero para tratamento de água | |
| BR9306963A (pt) | Método de tratamento de água de processo | |
| BR9406105A (pt) | Método de tratamento de água de processo contendo íons metálicos relativo ao alvejamento de polpa de material contendo ligno-celulose | |
| MX9307413A (es) | Proceso para blanquear pulpa que contiene lignocelulosa. | |
| NZ242996A (en) | Process for bleaching and delignification of chemical paper pulp comprising treating in three stages with gaseous oxygen, then gaseous ozone and peroxymonosulphuric acid or its salts in either order; pulp produced thereby | |
| FI934056L (fi) | Menetelmä massan valkaisemiseksi | |
| SE9401628L (sv) | Förfarande vid syrgasdelignifiering | |
| NO975038L (no) | Behandling av masse med chelateringsmiddel og påfölgende bleking ved en pH-verdi over 9 | |
| BR8603671A (pt) | Processo para a deslignificacao de materias celulosicas | |
| BR9407976A (pt) | Processo para o branqueamento de uma pasta de papel química | |
| SE9903417D0 (sv) | A process for the production of sulphate pulp | |
| BR8603672A (pt) | Processo para a deslignificacao de materias celulosicas | |
| IT1243951B (it) | Processo a piu' stadi per il decapaggio di un acciaio inossidabile avente struttura martensitica. | |
| NO984593L (no) | FremgangsmÕte for bleking av kjemiske papirmasser | |
| SE9704273D0 (sv) | Nytt förfarande vid framställning av kemisk massa |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EE | Request for examination | ||
| EG | Technical examination (opinion): publication of technical examination (opinion) | ||
| FC | Decision: refusal |