CA2636355C - Process for the bleaching of mechanical paper pulp - Google Patents
Process for the bleaching of mechanical paper pulp 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)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP06075155.9 | 2006-01-24 | ||
| EP06075155A EP1811080A1 (en) | 2006-01-24 | 2006-01-24 | Process for the bleaching of mechanical paper pulp |
| PCT/EP2007/050578 WO2007085579A1 (en) | 2006-01-24 | 2007-01-22 | Process for the bleaching of mechanical paper pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2636355A1 CA2636355A1 (en) | 2007-08-02 |
| CA2636355C true CA2636355C (en) | 2015-09-29 |
Family
ID=36568695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2636355A Expired - Fee Related CA2636355C (en) | 2006-01-24 | 2007-01-22 | Process for the bleaching of mechanical paper pulp |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100163193A1 (pl) |
| EP (2) | EP1811080A1 (pl) |
| CA (1) | CA2636355C (pl) |
| PL (1) | PL1979533T3 (pl) |
| WO (1) | WO2007085579A1 (pl) |
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 |
| WO2009154898A1 (en) | 2008-06-20 | 2009-12-23 | International Paper Company | Composition and recording sheet with improved optical properties |
| GB0901207D0 (en) | 2009-01-26 | 2009-03-11 | Innospec Ltd | Chelating agents and methods relating thereto |
| US20120061043A1 (en) * | 2009-05-29 | 2012-03-15 | Solvay Sa | Process for the bleaching of mechanical paper pulp |
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 |
| AU5657098A (en) * | 1997-11-25 | 1999-06-15 | Amylum Belgium N.V. | Improvements to the bleaching process for chemical pulp and intermediate pulp dispersions |
| 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 (en) * | 2006-02-24 | 2007-08-29 | SOLVAY (Société Anonyme) | Process for the manufacture of oxidized starch, oxidized starch and its use |
| 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/en not_active Withdrawn
-
2007
- 2007-01-22 PL PL07704046.7T patent/PL1979533T3/pl unknown
- 2007-01-22 WO PCT/EP2007/050578 patent/WO2007085579A1/en not_active Ceased
- 2007-01-22 US US12/160,805 patent/US20100163193A1/en not_active Abandoned
- 2007-01-22 EP EP07704046.7A patent/EP1979533B1/en not_active Not-in-force
- 2007-01-22 CA CA2636355A patent/CA2636355C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP1979533B1 (en) | 2016-03-30 |
| WO2007085579A1 (en) | 2007-08-02 |
| EP1979533A1 (en) | 2008-10-15 |
| PL1979533T3 (pl) | 2016-10-31 |
| US20100163193A1 (en) | 2010-07-01 |
| CA2636355A1 (en) | 2007-08-02 |
| EP1811080A1 (en) | 2007-07-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20210831 |
|
| MKLA | Lapsed |
Effective date: 20200122 |