CA2224677C - Peroxide bleaching of pulp - Google Patents
Peroxide bleaching of pulp Download PDFInfo
- Publication number
- CA2224677C CA2224677C CA002224677A CA2224677A CA2224677C CA 2224677 C CA2224677 C CA 2224677C CA 002224677 A CA002224677 A CA 002224677A CA 2224677 A CA2224677 A CA 2224677A CA 2224677 C CA2224677 C CA 2224677C
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- peroxide
- particle size
- added
- surface area
- 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
- 238000004061 bleaching Methods 0.000 title claims abstract description 32
- 150000002978 peroxides Chemical class 0.000 title claims abstract description 21
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000002245 particle Substances 0.000 claims abstract description 44
- 238000000034 method Methods 0.000 claims abstract description 30
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 17
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 11
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002738 chelating agent Substances 0.000 claims description 7
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 claims description 2
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 claims description 2
- 239000002002 slurry Substances 0.000 claims description 2
- URDCARMUOSMFFI-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(2-hydroxyethyl)amino]acetic acid Chemical compound OCCN(CC(O)=O)CCN(CC(O)=O)CC(O)=O URDCARMUOSMFFI-UHFFFAOYSA-N 0.000 claims 1
- 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 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000000126 substance Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 229920001131 Pulp (paper) Polymers 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 238000002474 experimental method Methods 0.000 description 4
- 239000003513 alkali Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- 239000004115 Sodium Silicate Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- AURFNYPOUVLIAV-UHFFFAOYSA-N 2-[2-[bis(carboxymethyl)amino]ethyl-(carboxymethyl)amino]-2-hydroxyacetic acid Chemical compound OC(=O)C(O)N(CC(O)=O)CCN(CC(O)=O)CC(O)=O AURFNYPOUVLIAV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011362 coarse particle Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000004120 green S Substances 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material 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
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
- D21C9/16—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)
- Detergent Compositions (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Cosmetics (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPN3520 | 1995-06-13 | ||
| AUPN3520A AUPN352095A0 (en) | 1995-06-13 | 1995-06-13 | Peroxide bleaching of pulp |
| PCT/AU1996/000354 WO1996041917A1 (en) | 1995-06-13 | 1996-06-13 | Peroxide bleaching of pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2224677A1 CA2224677A1 (en) | 1996-12-27 |
| CA2224677C true CA2224677C (en) | 2003-12-02 |
Family
ID=3787861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002224677A Expired - Fee Related CA2224677C (en) | 1995-06-13 | 1996-06-13 | Peroxide bleaching of pulp |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0832323B1 (de) |
| KR (1) | KR19990022875A (de) |
| AT (1) | ATE197825T1 (de) |
| AU (1) | AUPN352095A0 (de) |
| CA (1) | CA2224677C (de) |
| DE (1) | DE69611091D1 (de) |
| WO (1) | WO1996041917A1 (de) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7052578B2 (en) * | 2000-01-28 | 2006-05-30 | Martin Marietta Magnesia Specialties, Inc. | Process employing magnesium hydroxide in peroxide bleaching of mechanical pulp |
| RU2164571C1 (ru) * | 2000-06-27 | 2001-03-27 | Камский целлюлозно-бумажный комбинат | Способ получения беленой сульфитной целлюлозы на магниевом основании |
| US6881299B2 (en) | 2001-05-16 | 2005-04-19 | North American Paper Corporation | Refiner bleaching with magnesium oxide and hydrogen peroxide |
| US6743332B2 (en) | 2001-05-16 | 2004-06-01 | Weyerhaeuser Company | High temperature peroxide bleaching of mechanical pulps |
| US8845860B2 (en) | 2010-09-16 | 2014-09-30 | Georgia-Pacific Consumer Products Lp | High brightness pulps from lignin rich waste papers |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI52877B (de) * | 1972-11-16 | 1977-08-31 | Ahlstroem Oy | |
| NO852330L (no) * | 1985-06-10 | 1986-12-11 | Papirind Forskningsinst | Fremgangsmaate ved peroksydbleking av celluloseholdige masser. |
| DE4400954B4 (de) * | 1994-01-14 | 2007-03-01 | Stefan Kürzeder | Verfahren zur Helligkeitssteigerung bei der Bleiche von Holzstoffen mit Wasserstoffperoxid |
-
1995
- 1995-06-13 AU AUPN3520A patent/AUPN352095A0/en not_active Abandoned
-
1996
- 1996-06-13 KR KR1019970709344A patent/KR19990022875A/ko not_active Withdrawn
- 1996-06-13 EP EP96917277A patent/EP0832323B1/de not_active Expired - Lifetime
- 1996-06-13 DE DE69611091T patent/DE69611091D1/de not_active Expired - Lifetime
- 1996-06-13 WO PCT/AU1996/000354 patent/WO1996041917A1/en not_active Ceased
- 1996-06-13 AT AT96917277T patent/ATE197825T1/de active
- 1996-06-13 CA CA002224677A patent/CA2224677C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| ATE197825T1 (de) | 2000-12-15 |
| WO1996041917A1 (en) | 1996-12-27 |
| KR19990022875A (ko) | 1999-03-25 |
| EP0832323A1 (de) | 1998-04-01 |
| AUPN352095A0 (en) | 1995-07-06 |
| EP0832323A4 (de) | 1998-09-09 |
| EP0832323B1 (de) | 2000-11-29 |
| CA2224677A1 (en) | 1996-12-27 |
| DE69611091D1 (de) | 2001-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5227022A (en) | Process for increasing pulp brightness with zeolites and easily decomposable organic chelating agents | |
| US6056853A (en) | Process for peroxide bleaching of pulp using MgO particles | |
| EP0464059B1 (de) | Verfahren zum de-inken von altpapieren | |
| CA2005599A1 (en) | Hydrogen peroxide bleaching process | |
| CA2168288C (en) | Bleaching compositions comprising sulfamates and borates or gluconates and processes | |
| CA2224677C (en) | Peroxide bleaching of pulp | |
| US5449436A (en) | Bleaching of deinked paper/wood pulp | |
| CA2057231A1 (en) | Method of pretreating lignocellulosic materials prior to alkaline peroxide high yield pulping | |
| US4338158A (en) | Pulping in the presence of a protector | |
| US5298118A (en) | Preparation of bleached chemithermomechanical pulp | |
| US5296100A (en) | H2 O2 /alkaline bleaching of wood pulps | |
| CA2512141C (en) | Bleaching of cellulosic fibre material with peroxide using polymers as a stabiliser | |
| JPH0156197B2 (de) | ||
| AU695415B2 (en) | Peroxide bleaching of pulp | |
| CA2278399C (en) | Bleaching process | |
| JPH0250236B2 (de) | ||
| JPS63303189A (ja) | ケミカル−サーモメカニカルパルプの製造方法 | |
| AU745706B2 (en) | Bleaching process | |
| RU2495177C2 (ru) | Перекисно-щелочная обработка отходов на интегрированном нейтрально-щелочном целлюлозно-бумажном комбинате | |
| JPH0197291A (ja) | 機械パルプの漂白方法 | |
| US3709779A (en) | Bleaching of mechanical pulps with hydrosulfite in the presence of an alkali metal silikate | |
| EP1258559B1 (de) | Verfahren zum bleichen von mechanischen Pulpe | |
| CA2576882C (en) | Composition and process for bleaching mechanical wood pulp | |
| EP1266074B1 (de) | Verfahren zum bleichen von holzstoff und chemothermomechanischer pulpe | |
| CA2522144A1 (en) | Method for bleaching wood fibers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150615 |