CA2379691A1 - Procede utilisant de l'hydroxyde de magnesium dans le blanchiment au peroxyde de pate mecanique - Google Patents
Procede utilisant de l'hydroxyde de magnesium dans le blanchiment au peroxyde de pate mecanique Download PDFInfo
- Publication number
- CA2379691A1 CA2379691A1 CA002379691A CA2379691A CA2379691A1 CA 2379691 A1 CA2379691 A1 CA 2379691A1 CA 002379691 A CA002379691 A CA 002379691A CA 2379691 A CA2379691 A CA 2379691A CA 2379691 A1 CA2379691 A1 CA 2379691A1
- Authority
- CA
- Canada
- Prior art keywords
- pulp
- bleaching
- process according
- mixture
- hydrogen peroxide
- 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
- 238000004061 bleaching Methods 0.000 title claims abstract description 198
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 129
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 title claims abstract description 127
- 239000000347 magnesium hydroxide Substances 0.000 title claims abstract description 126
- 229910001862 magnesium hydroxide Inorganic materials 0.000 title claims abstract description 126
- 238000000034 method Methods 0.000 title claims abstract description 124
- 230000008569 process Effects 0.000 title claims abstract description 109
- 150000002978 peroxides Chemical class 0.000 title description 131
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 190
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 100
- 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 abstract description 63
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 36
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000002002 slurry Substances 0.000 claims abstract description 17
- 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 abstract description 10
- 235000012254 magnesium hydroxide Nutrition 0.000 claims description 123
- 239000000203 mixture Substances 0.000 claims description 62
- 229960003330 pentetic acid Drugs 0.000 claims description 62
- 239000002738 chelating agent Substances 0.000 claims description 41
- 230000035484 reaction time Effects 0.000 claims description 33
- 150000002681 magnesium compounds Chemical class 0.000 claims description 31
- 239000000126 substance Substances 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000706 filtrate Substances 0.000 claims description 18
- 150000003839 salts Chemical class 0.000 claims description 9
- 229910052742 iron Inorganic materials 0.000 claims description 7
- 238000004064 recycling Methods 0.000 claims description 7
- 150000004292 cyclic ethers Chemical class 0.000 claims description 5
- 229940090960 diethylenetriamine pentamethylene phosphonic acid Drugs 0.000 claims description 4
- DUYCTCQXNHFCSJ-UHFFFAOYSA-N dtpmp Chemical compound OP(=O)(O)CN(CP(O)(O)=O)CCN(CP(O)(=O)O)CCN(CP(O)(O)=O)CP(O)(O)=O DUYCTCQXNHFCSJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000005406 washing Methods 0.000 claims description 4
- 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 description 2
- OUDSFQBUEBFSPS-UHFFFAOYSA-N ethylenediaminetriacetic acid Chemical compound OC(=O)CNCCN(CC(O)=O)CC(O)=O OUDSFQBUEBFSPS-UHFFFAOYSA-N 0.000 claims description 2
- 239000002253 acid Substances 0.000 claims 3
- 150000007513 acids Chemical class 0.000 claims 2
- RGSFGYAAUTVSQA-UHFFFAOYSA-N pentamethylene Natural products C1CCCC1 RGSFGYAAUTVSQA-UHFFFAOYSA-N 0.000 claims 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims 1
- ABLZXFCXXLZCGV-UHFFFAOYSA-N Phosphorous acid Chemical compound OP(O)=O ABLZXFCXXLZCGV-UHFFFAOYSA-N 0.000 claims 1
- 125000004817 pentamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims 1
- 239000003513 alkali Substances 0.000 abstract description 19
- 239000003518 caustics Substances 0.000 abstract description 18
- 229910052723 transition metal Inorganic materials 0.000 abstract description 13
- 150000003624 transition metals Chemical class 0.000 abstract description 13
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 abstract description 11
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 114
- 238000002474 experimental method Methods 0.000 description 73
- 229910019440 Mg(OH) Inorganic materials 0.000 description 48
- 230000009920 chelation Effects 0.000 description 38
- 235000011121 sodium hydroxide Nutrition 0.000 description 38
- 229910052911 sodium silicate Inorganic materials 0.000 description 38
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 37
- 239000004115 Sodium Silicate Substances 0.000 description 36
- 239000002585 base Substances 0.000 description 29
- 235000012245 magnesium oxide Nutrition 0.000 description 29
- -1 Hydrogen peroxide forms perhydroxyl anions Chemical class 0.000 description 27
- 239000007844 bleaching agent Substances 0.000 description 22
- 238000007792 addition Methods 0.000 description 20
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 17
- 230000007935 neutral effect Effects 0.000 description 14
- 238000004537 pulping Methods 0.000 description 14
- 230000004044 response Effects 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 13
- 239000002023 wood Substances 0.000 description 13
- 239000013522 chelant Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000000354 decomposition reaction Methods 0.000 description 9
- 239000002245 particle Substances 0.000 description 9
- 239000004575 stone Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 230000008901 benefit Effects 0.000 description 7
- 150000002739 metals Chemical class 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- 125000000129 anionic group Chemical group 0.000 description 6
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 description 6
- 239000010813 municipal solid waste Substances 0.000 description 6
- 239000013055 pulp slurry Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 239000011122 softwood Substances 0.000 description 5
- 241000894007 species Species 0.000 description 5
- 238000006467 substitution reaction Methods 0.000 description 5
- 125000002091 cationic group Chemical group 0.000 description 4
- 238000010494 dissociation reaction Methods 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229920002678 cellulose Polymers 0.000 description 3
- 239000001913 cellulose Substances 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 3
- 230000005593 dissociations Effects 0.000 description 3
- 239000011777 magnesium Substances 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910021645 metal ion Inorganic materials 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000003352 sequestering agent Substances 0.000 description 3
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 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 2
- 238000005457 optimization Methods 0.000 description 2
- 238000009896 oxidative bleaching Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007086 side reaction Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 2
- 241000208140 Acer Species 0.000 description 1
- 101100488158 Bacillus subtilis (strain 168) yeaA gene Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 101100060002 Escherichia coli (strain K12) cho gene Proteins 0.000 description 1
- 102100028701 General vesicular transport factor p115 Human genes 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 101000767151 Homo sapiens General vesicular transport factor p115 Proteins 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 101000941356 Nostoc ellipsosporum Cyanovirin-N Proteins 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000007630 basic procedure Methods 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000006172 buffering agent Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 208000018459 dissociative disease Diseases 0.000 description 1
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- GBHRVZIGDIUCJB-UHFFFAOYSA-N hydrogenphosphite Chemical class OP([O-])[O-] GBHRVZIGDIUCJB-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- 150000001455 metallic ions Chemical class 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000009895 reductive bleaching Methods 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009919 sequestration Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 239000002351 wastewater 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
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
L'invention concerne un procédé de blanchiment de pâte de bois (10) utilisant du peroxyde d'hydrogène comme agent de blanchiment oxydant, en présence d'hydroxyde de magnésium (18) ou d'oxyde de magnésium (18). Le procédé de blanchiment est mis en oeuvre en présence d'hydroxyde de magnésium comme source d'alcali principale, et de préférence essentielle. Le procédé comprend éventuellement des agents chélatants à métal de transition (8), tels que DTPA ou EDTA dans la suspension de blanchiment. Le procédé permet d'éviter l'ajout de matière caustique et de silicate dans de ces systèmes, et peut être mis en oeuvre à un pH d'environ 5,0 à 8,5.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17870400P | 2000-01-28 | 2000-01-28 | |
| US60/178,704 | 2000-01-28 | ||
| US20720500P | 2000-05-26 | 2000-05-26 | |
| US60/207,205 | 2000-05-26 | ||
| PCT/US2001/002724 WO2001055502A1 (fr) | 2000-01-28 | 2001-01-26 | Procede utilisant de l'hydroxyde de magnesium dans le blanchiment au peroxyde de pate mecanique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2379691A1 true CA2379691A1 (fr) | 2001-08-02 |
Family
ID=26874568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002379691A Abandoned CA2379691A1 (fr) | 2000-01-28 | 2001-01-26 | Procede utilisant de l'hydroxyde de magnesium dans le blanchiment au peroxyde de pate mecanique |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2379691A1 (fr) |
| WO (1) | WO2001055502A1 (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2937656B1 (fr) * | 2008-10-24 | 2010-11-19 | Arkema France | Procede de fabrication de pate a papier |
| US8845860B2 (en) * | 2010-09-16 | 2014-09-30 | Georgia-Pacific Consumer Products Lp | High brightness pulps from lignin rich waste papers |
| CN114908598B (zh) * | 2022-02-26 | 2022-12-09 | 北京林业大学 | 一种纸浆氧漂方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE420430B (sv) * | 1978-02-17 | 1981-10-05 | Mo Och Domsjoe Ab | Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel |
| DE69004492T3 (de) * | 1989-06-06 | 2001-11-15 | Eka Nobel Ab, Bohus | Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen. |
| AUPP476398A0 (en) * | 1998-07-21 | 1998-08-13 | Orica Australia Pty Ltd | Bleaching process |
-
2001
- 2001-01-26 WO PCT/US2001/002724 patent/WO2001055502A1/fr not_active Ceased
- 2001-01-26 CA CA002379691A patent/CA2379691A1/fr not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001055502A1 (fr) | 2001-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |