CA2374673A1 - Procede permettant d'ameliorer l'opacite de pate mecanique au moyen de peroxyacides aliphatiques - Google Patents
Procede permettant d'ameliorer l'opacite de pate mecanique au moyen de peroxyacides aliphatiques Download PDFInfo
- Publication number
- CA2374673A1 CA2374673A1 CA002374673A CA2374673A CA2374673A1 CA 2374673 A1 CA2374673 A1 CA 2374673A1 CA 002374673 A CA002374673 A CA 002374673A CA 2374673 A CA2374673 A CA 2374673A CA 2374673 A1 CA2374673 A1 CA 2374673A1
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- opacity
- acid
- bleaching
- aliphatic
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 14
- 150000004965 peroxy acids Chemical class 0.000 title description 33
- -1 aliphatic peroxyacids Chemical class 0.000 title description 3
- SCKXCAADGDQQCS-UHFFFAOYSA-N Performic acid Chemical compound OOC=O SCKXCAADGDQQCS-UHFFFAOYSA-N 0.000 claims abstract 10
- 125000001931 aliphatic group Chemical group 0.000 claims abstract 9
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 46
- 238000004061 bleaching Methods 0.000 claims description 35
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 5
- CZPZWMPYEINMCF-UHFFFAOYSA-N propaneperoxoic acid Chemical compound CCC(=O)OO CZPZWMPYEINMCF-UHFFFAOYSA-N 0.000 claims description 3
- FHHJDRFHHWUPDG-UHFFFAOYSA-N peroxysulfuric acid Chemical compound OOS(O)(=O)=O FHHJDRFHHWUPDG-UHFFFAOYSA-N 0.000 claims description 2
- LJGHYPLBDBRCRZ-UHFFFAOYSA-N 3-(3-aminophenyl)sulfonylaniline Chemical compound NC1=CC=CC(S(=O)(=O)C=2C=C(N)C=CC=2)=C1 LJGHYPLBDBRCRZ-UHFFFAOYSA-N 0.000 claims 1
- 150000002978 peroxides Chemical class 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 10
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 239000000126 substance Substances 0.000 description 9
- 238000011282 treatment Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 5
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 5
- FRPJTGXMTIIFIT-UHFFFAOYSA-N tetraacetylethylenediamine Chemical compound CC(=O)C(N)(C(C)=O)C(N)(C(C)=O)C(C)=O FRPJTGXMTIIFIT-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- WFDIJRYMOXRFFG-UHFFFAOYSA-N Acetic anhydride Chemical compound CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 239000011122 softwood Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000003115 biocidal effect Effects 0.000 description 2
- 239000003139 biocide Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000004076 pulp bleaching Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 101100273988 Neurospora crassa (strain ATCC 24698 / 74-OR23-1A / CBS 708.71 / DSM 1257 / FGSC 987) paa-3 gene Proteins 0.000 description 1
- 241000218657 Picea Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000002023 wood Substances 0.000 description 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
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
L'invention concerne un procédé de traitement de pâte mécanique consistant à lui ajouter de l'acide percarboxylique aliphatique en une quantité comprise entre 0.5 et 5 kg/tonne, de façon à en améliorer l'opacité.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI991366 | 1999-06-15 | ||
| FI991366A FI107545B (fi) | 1999-06-15 | 1999-06-15 | Menetelmä mekaanisten massojen käsittelemiseksi |
| PCT/FI2000/000532 WO2000077301A1 (fr) | 1999-06-15 | 2000-06-14 | Procede permettant d'ameliorer l'opacite de pate mecanique au moyen de peroxyacides aliphatiques |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2374673A1 true CA2374673A1 (fr) | 2000-12-21 |
Family
ID=8554886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002374673A Abandoned CA2374673A1 (fr) | 1999-06-15 | 2000-06-14 | Procede permettant d'ameliorer l'opacite de pate mecanique au moyen de peroxyacides aliphatiques |
Country Status (9)
| Country | Link |
|---|---|
| EP (1) | EP1244851B1 (fr) |
| AT (1) | ATE239828T1 (fr) |
| AU (1) | AU5224500A (fr) |
| CA (1) | CA2374673A1 (fr) |
| DE (1) | DE60002613T2 (fr) |
| ES (1) | ES2193085T3 (fr) |
| FI (1) | FI107545B (fr) |
| NO (1) | NO20016083L (fr) |
| WO (1) | WO2000077301A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CA2731431C (fr) | 2008-07-30 | 2017-06-13 | Micro Motion, Inc. | Procede et dispositif de traitement de signaux de modulation d'impulsion en largeur |
| FI127444B (en) * | 2015-05-27 | 2018-06-15 | Kemira Oyj | A method for reducing the viscosity of a pulp in the manufacture of soluble cellulose |
| FI127996B (en) * | 2016-07-01 | 2019-07-15 | Kemira Oyj | A process for treating pulp |
| WO2019048698A1 (fr) * | 2017-09-11 | 2019-03-14 | Kemira Oyj | Procédé de traitement de pâte |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1119546A (en) * | 1965-03-01 | 1968-07-10 | Paper Chemistry Inst | Improved method of treating fibrous material |
| US5589032A (en) * | 1992-09-21 | 1996-12-31 | North Carolina State University | Process for preparing a bleaching liquor containing percarboxylic acid and caro's acid |
| WO1997022749A1 (fr) * | 1995-12-19 | 1997-06-26 | Kvaerner Hymac Inc. | Procede de traitement de pate de raffineur |
-
1999
- 1999-06-15 FI FI991366A patent/FI107545B/fi active
-
2000
- 2000-06-14 ES ES00936926T patent/ES2193085T3/es not_active Expired - Lifetime
- 2000-06-14 AT AT00936926T patent/ATE239828T1/de not_active IP Right Cessation
- 2000-06-14 AU AU52245/00A patent/AU5224500A/en not_active Abandoned
- 2000-06-14 CA CA002374673A patent/CA2374673A1/fr not_active Abandoned
- 2000-06-14 DE DE60002613T patent/DE60002613T2/de not_active Expired - Fee Related
- 2000-06-14 WO PCT/FI2000/000532 patent/WO2000077301A1/fr not_active Ceased
- 2000-06-14 EP EP00936926A patent/EP1244851B1/fr not_active Expired - Lifetime
-
2001
- 2001-12-13 NO NO20016083A patent/NO20016083L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1244851B1 (fr) | 2003-05-07 |
| DE60002613T2 (de) | 2003-11-27 |
| FI991366A0 (fi) | 1999-06-15 |
| ES2193085T3 (es) | 2003-11-01 |
| AU5224500A (en) | 2001-01-02 |
| FI107545B (fi) | 2001-08-31 |
| ATE239828T1 (de) | 2003-05-15 |
| NO20016083L (no) | 2002-02-14 |
| WO2000077301A1 (fr) | 2000-12-21 |
| DE60002613D1 (de) | 2003-06-12 |
| FI991366L (fi) | 2000-12-16 |
| EP1244851A1 (fr) | 2002-10-02 |
| NO20016083D0 (no) | 2001-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |