CA2636355C - Procede pour le blanchiment de pate a papier mecanique - Google Patents
Procede pour le blanchiment de pate a papier mecanique Download PDFInfo
- Publication number
- CA2636355C CA2636355C CA2636355A CA2636355A CA2636355C CA 2636355 C CA2636355 C CA 2636355C CA 2636355 A CA2636355 A CA 2636355A CA 2636355 A CA2636355 A CA 2636355A CA 2636355 C CA2636355 C CA 2636355C
- Authority
- CA
- Canada
- Prior art keywords
- pretreatment step
- pulp
- process according
- bleaching
- paper pulp
- 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 - Fee Related
Links
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000004061 bleaching Methods 0.000 title claims abstract description 25
- 239000002738 chelating agent Substances 0.000 claims abstract description 48
- 239000007800 oxidant agent Substances 0.000 claims abstract description 11
- 150000002978 peroxides Chemical class 0.000 claims abstract description 9
- 235000003704 aspartic acid Nutrition 0.000 claims abstract description 7
- OQFSQFPPLPISGP-UHFFFAOYSA-N beta-carboxyaspartic acid Natural products OC(=O)C(N)C(C(O)=O)C(O)=O OQFSQFPPLPISGP-UHFFFAOYSA-N 0.000 claims abstract description 7
- CKLJMWTZIZZHCS-REOHCLBHSA-N L-aspartic acid Chemical compound OC(=O)[C@@H](N)CC(O)=O CKLJMWTZIZZHCS-REOHCLBHSA-N 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 125000004433 nitrogen atom Chemical group N* 0.000 claims abstract description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 24
- 150000001875 compounds Chemical class 0.000 claims description 6
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 4
- 150000003839 salts Chemical class 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- PQHYOGIRXOKOEJ-UHFFFAOYSA-N 2-(1,2-dicarboxyethylamino)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)NC(C(O)=O)CC(O)=O PQHYOGIRXOKOEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 150000004967 organic peroxy acids Chemical class 0.000 claims description 3
- PQHYOGIRXOKOEJ-WUCPZUCCSA-N (2s)-2-(1,2-dicarboxyethylamino)butanedioic acid Chemical compound OC(=O)CC(C(O)=O)N[C@H](C(O)=O)CC(O)=O PQHYOGIRXOKOEJ-WUCPZUCCSA-N 0.000 claims description 2
- BTLHODXEDLCLAD-VKHMYHEASA-N (2s)-2-(carboxymethylamino)butanedioic acid Chemical compound OC(=O)CN[C@H](C(O)=O)CC(O)=O BTLHODXEDLCLAD-VKHMYHEASA-N 0.000 claims description 2
- VKZRWSNIWNFCIQ-UHFFFAOYSA-N 2-[2-(1,2-dicarboxyethylamino)ethylamino]butanedioic acid Chemical group OC(=O)CC(C(O)=O)NCCNC(C(O)=O)CC(O)=O VKZRWSNIWNFCIQ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000954 2-hydroxyethyl group Chemical group [H]C([*])([H])C([H])([H])O[H] 0.000 claims description 2
- 229910052791 calcium Inorganic materials 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- CBOIHMRHGLHBPB-UHFFFAOYSA-N hydroxymethyl Chemical compound O[CH2] CBOIHMRHGLHBPB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052749 magnesium Inorganic materials 0.000 claims description 2
- 229910052700 potassium Inorganic materials 0.000 claims description 2
- 229910052708 sodium Inorganic materials 0.000 claims description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 1
- 235000019256 formaldehyde Nutrition 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 238000005406 washing Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 4
- 229910052783 alkali metal Inorganic materials 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- -1 peroxide compounds Chemical class 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 3
- 229960001484 edetic acid Drugs 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- QPCDCPDFJACHGM-UHFFFAOYSA-N N,N-bis{2-[bis(carboxymethyl)amino]ethyl}glycine Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(=O)O)CCN(CC(O)=O)CC(O)=O QPCDCPDFJACHGM-UHFFFAOYSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 150000001455 metallic ions Chemical class 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- XYBHHDIIOKAINY-VIELNCHRSA-N 2-[[(1s)-1,2-dicarboxyethyl]amino]-3-hydroxybutanedioic acid Chemical compound OC(=O)C(O)C(C(O)=O)N[C@H](C(O)=O)CC(O)=O XYBHHDIIOKAINY-VIELNCHRSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- DSLZVSRJTYRBFB-LLEIAEIESA-N D-glucaric acid Chemical compound OC(=O)[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C(O)=O DSLZVSRJTYRBFB-LLEIAEIESA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229960003330 pentetic acid Drugs 0.000 description 1
- 150000004965 peroxy acids Chemical class 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000004575 stone Substances 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
- D21C9/1026—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
- D21C9/1005—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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
L'invention concerne un procédé pour le blanchiment de pâte à papier mécanique avec un ou plusieurs agents oxydants de type peroxydes, consistant à traiter préalablement la pâte dans une étape de prétraitement avec un ou plusieurs agents chélatants choisis parmi l'acide aspartique et ses dérivés, substitués sur l'atome d'azote, caractérisé en ce que le pH initial de l'étape de prétraitement, juste avant d'ajouter ledit ou lesdits agents chélatants, est supérieur à 8.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06075155A EP1811080A1 (fr) | 2006-01-24 | 2006-01-24 | Procédé de blanchiment de pate de papier mecanique |
| EP06075155.9 | 2006-01-24 | ||
| PCT/EP2007/050578 WO2007085579A1 (fr) | 2006-01-24 | 2007-01-22 | Procédé pour le blanchiment de pâte à papier mécanique |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2636355A1 CA2636355A1 (fr) | 2007-08-02 |
| CA2636355C true CA2636355C (fr) | 2015-09-29 |
Family
ID=36568695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2636355A Expired - Fee Related CA2636355C (fr) | 2006-01-24 | 2007-01-22 | Procede pour le blanchiment de pate a papier mecanique |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100163193A1 (fr) |
| EP (2) | EP1811080A1 (fr) |
| CA (1) | CA2636355C (fr) |
| PL (1) | PL1979533T3 (fr) |
| WO (1) | WO2007085579A1 (fr) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7967948B2 (en) | 2006-06-02 | 2011-06-28 | International Paper Company | Process for non-chlorine oxidative bleaching of mechanical pulp in the presence of optical brightening agents |
| US20100101743A1 (en) * | 2007-02-21 | 2010-04-29 | Solvay (Societe Anonyme) | Process for the bleaching of paper pulp |
| GB0721587D0 (en) * | 2007-11-02 | 2007-12-12 | Innospec Ltd | Process for bleaching pulp |
| CA2728278C (fr) | 2008-06-20 | 2016-06-28 | Zheng Tan | Composition et feuille d'impression presentant des proprietes optiques ameliorees |
| GB0901207D0 (en) | 2009-01-26 | 2009-03-11 | Innospec Ltd | Chelating agents and methods relating thereto |
| CA2762712C (fr) * | 2009-05-29 | 2017-08-29 | Solvay Sa | Procede de blanchiment de pate a papier mecanique |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4388148A (en) * | 1981-06-23 | 1983-06-14 | Nalco Chemical Company | Process for producing pulp |
| GB9216408D0 (en) * | 1992-08-01 | 1992-09-16 | Procter & Gamble | Stabilized bleaching compositions |
| FI105701B (fi) * | 1995-10-20 | 2000-09-29 | Ahlstrom Machinery Oy | Menetelmä ja laitteisto massan käsittelemiseksi |
| FI115642B (fi) * | 1996-02-19 | 2005-06-15 | Kemira Oyj | Korkeasaantomassojen valkaisumenetelmä |
| FI104572B (fi) * | 1996-05-30 | 2000-02-29 | Kemira Chemicals Oy | Menetelmä kemiallisen massan valkaisemiseksi |
| DE19713911A1 (de) * | 1997-04-04 | 1998-10-08 | Bayer Ag | Herstellung und Verfahren von Iminodibernsteinsäuresalzen |
| CA2310278A1 (fr) * | 1997-11-25 | 1999-06-03 | Amylum Belgium N.V. | Perfectionnements apportes au procede de blanchiment de la pate chimique et dispersions intermediaires de pate |
| BE1011785A3 (fr) * | 1998-03-10 | 2000-01-11 | Solvay | Procede de blanchiment et/ou de delignification de pates a papier chimiques. |
| FI120201B (fi) * | 2004-05-12 | 2009-07-31 | Kemira Oyj | Uusi koostumus ja menetelmä kuitumateriaalin käsittelemiseksi |
| EP1826219A1 (fr) * | 2006-02-24 | 2007-08-29 | SOLVAY (Société Anonyme) | Procédé de fabrication d'amidon oxydé, amidon oxydé et son utilisation |
| US20100101743A1 (en) * | 2007-02-21 | 2010-04-29 | Solvay (Societe Anonyme) | Process for the bleaching of paper pulp |
-
2006
- 2006-01-24 EP EP06075155A patent/EP1811080A1/fr not_active Withdrawn
-
2007
- 2007-01-22 US US12/160,805 patent/US20100163193A1/en not_active Abandoned
- 2007-01-22 CA CA2636355A patent/CA2636355C/fr not_active Expired - Fee Related
- 2007-01-22 PL PL07704046.7T patent/PL1979533T3/pl unknown
- 2007-01-22 WO PCT/EP2007/050578 patent/WO2007085579A1/fr not_active Ceased
- 2007-01-22 EP EP07704046.7A patent/EP1979533B1/fr not_active Not-in-force
Also Published As
| Publication number | Publication date |
|---|---|
| US20100163193A1 (en) | 2010-07-01 |
| EP1979533A1 (fr) | 2008-10-15 |
| EP1811080A1 (fr) | 2007-07-25 |
| CA2636355A1 (fr) | 2007-08-02 |
| PL1979533T3 (pl) | 2016-10-31 |
| EP1979533B1 (fr) | 2016-03-30 |
| WO2007085579A1 (fr) | 2007-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210831 |
|
| MKLA | Lapsed |
Effective date: 20200122 |