NO174560B - Fremgangsmaate for samtidig raffinering og bleking av masse av ved - Google Patents
Fremgangsmaate for samtidig raffinering og bleking av masse av ved Download PDFInfo
- Publication number
- NO174560B NO174560B NO891117A NO891117A NO174560B NO 174560 B NO174560 B NO 174560B NO 891117 A NO891117 A NO 891117A NO 891117 A NO891117 A NO 891117A NO 174560 B NO174560 B NO 174560B
- Authority
- NO
- Norway
- Prior art keywords
- bleaching
- refiner
- pulp
- hydrosulphite
- refining
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title claims abstract description 63
- 238000007670 refining Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 17
- 229920001131 Pulp (paper) Polymers 0.000 title abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 24
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 9
- 239000002023 wood 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 5
- 239000003349 gelling agent Substances 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000001879 gelation Methods 0.000 claims 1
- GRWZHXKQBITJKP-UHFFFAOYSA-L dithionite(2-) Chemical compound [O-]S(=O)S([O-])=O GRWZHXKQBITJKP-UHFFFAOYSA-L 0.000 abstract description 11
- 239000007844 bleaching agent Substances 0.000 abstract description 10
- 239000003513 alkali Substances 0.000 abstract description 3
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 description 35
- 238000007792 addition Methods 0.000 description 8
- 239000000243 solution Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 5
- 235000011121 sodium hydroxide Nutrition 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- 230000002378 acidificating effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 239000011122 softwood Substances 0.000 description 2
- 241000218657 Picea Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- XQIMLPCOVYNASM-UHFFFAOYSA-N borole Chemical compound B1C=CC=C1 XQIMLPCOVYNASM-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012632 extractable Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 150000005838 radical anions Chemical class 0.000 description 1
- 238000009895 reductive bleaching Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 1
- 239000004289 sodium hydrogen sulphite Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- DHCDFWKWKRSZHF-UHFFFAOYSA-L thiosulfate(2-) Chemical compound [O-]S([S-])(=O)=O DHCDFWKWKRSZHF-UHFFFAOYSA-L 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 238000004383 yellowing Methods 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
- D21B1/14—Disintegrating in mills
- D21B1/16—Disintegrating in mills in the presence of chemical agents
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB8806206A GB2215350B (en) | 1988-03-16 | 1988-03-16 | Process for bleaching mechanical wood pulp |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO891117D0 NO891117D0 (no) | 1989-03-15 |
| NO891117L NO891117L (no) | 1989-09-18 |
| NO174560B true NO174560B (no) | 1994-02-14 |
Family
ID=10633511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO891117A NO174560B (no) | 1988-03-16 | 1989-03-15 | Fremgangsmaate for samtidig raffinering og bleking av masse av ved |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5129987A (fr) |
| EP (1) | EP0333398B2 (fr) |
| AT (1) | ATE130388T1 (fr) |
| CA (1) | CA1325868C (fr) |
| DE (1) | DE68924793T3 (fr) |
| FI (1) | FI96521B (fr) |
| GB (1) | GB2215350B (fr) |
| NO (1) | NO174560B (fr) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6267841B1 (en) * | 1992-09-14 | 2001-07-31 | Steven W. Burton | Low energy thermomechanical pulping process using an enzyme treatment between refining zones |
| EP0604088B1 (fr) * | 1992-12-14 | 1997-10-08 | Hoechst Celanese Corporation | Prévention de la formation de dioxyde de soufre lors du blachiment en raffineur |
| US5580422A (en) * | 1993-07-27 | 1996-12-03 | Hoechst Celanese Corporation | Brightening color dyed wastepaper with a bleaching agent and a quaternary compound |
| US5458737A (en) * | 1993-07-27 | 1995-10-17 | Hoechst Celanese Corporation | Quaternary compounds as brightness enhancers |
| US5560805A (en) * | 1993-07-27 | 1996-10-01 | Hoechst Celanese Corporation | Enhanced decolorization of waste paper with selected amines |
| US5733412A (en) * | 1995-09-13 | 1998-03-31 | International Paper Company | Decolorizing brown fibers in recycled pulp |
| US6881299B2 (en) * | 2001-05-16 | 2005-04-19 | North American Paper Corporation | Refiner bleaching with magnesium oxide and hydrogen peroxide |
| SE519462C2 (sv) * | 2001-06-21 | 2003-03-04 | Holmen Ab | Förfarande för framställning av blekt termomekanisk massa (TMP) eller blekt kemitermomekanisk massa (CTMP) |
| SG130975A1 (en) | 2005-09-29 | 2007-04-26 | Tinggi Tech Private Ltd | Fabrication of semiconductor devices for light emission |
| 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 |
| CN101678557B (zh) * | 2007-04-24 | 2014-07-02 | 巴斯夫欧洲公司 | 生产漂白的木材颗粒和浅色至白色木料的方法 |
| US8282773B2 (en) | 2007-12-14 | 2012-10-09 | Andritz Inc. | Method and system to enhance fiber development by addition of treatment agent during mechanical pulping |
| US20100224333A1 (en) * | 2009-03-09 | 2010-09-09 | Prasad Duggirala | Method and chemical composition to improve efficiency of mechanical pulp |
| US9932709B2 (en) | 2013-03-15 | 2018-04-03 | Ecolab Usa Inc. | Processes and compositions for brightness improvement in paper production |
| SE533509C2 (sv) * | 2009-07-07 | 2010-10-12 | Stora Enso Oyj | Metod för framställning av mikrofibrillär cellulosa |
| SE533510C2 (sv) | 2009-07-07 | 2010-10-12 | Stora Enso Oyj | Metod för framställning av mikrofibrillär cellulosa |
| ES2837553T3 (es) * | 2010-09-17 | 2021-06-30 | Titan Wood Ltd | Tratamiento de piezas de madera |
| PL2707540T3 (pl) | 2011-05-13 | 2016-12-30 | Sposób obróbki mikrofibrylowanej celulozy i mikrofibrylowana celuloza poddana obróbce tym sposobem | |
| EP2924166A1 (fr) | 2014-03-25 | 2015-09-30 | Basf Se | Procédé de fabrication de fibre de bois blanchie |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB974309A (en) * | 1961-03-16 | 1964-11-04 | Southern Bleachery And Print W | Compositions containing hydrosulfite and their applications in chemical reductions |
| SE303088B (fr) * | 1963-05-31 | 1968-08-12 | Defibrator Ab | |
| US3467574A (en) † | 1966-06-14 | 1969-09-16 | Crown Zellerbach Corp | Refiner bleaching of high yield pulps |
| US3804944A (en) * | 1970-10-02 | 1974-04-16 | Virginia Chemicals Inc | Sodium dithionite solution stablization |
| US3985674A (en) * | 1974-12-10 | 1976-10-12 | Virginia Chemicals Inc. | Stabilized sodium dithionite solutions |
| GB1588140A (en) * | 1977-01-21 | 1981-04-15 | Courtaulds Ltd | Method of preparing bleached pulp |
| SE7711552L (sv) * | 1976-10-15 | 1978-04-16 | Courtaulds Ltd | Blekt massa |
| SE422818B (sv) * | 1978-03-31 | 1982-03-29 | Modo Chemetrics Ab | Forfarande for foredling av allulosamassa genom blekning eller extrahering |
| SU1002435A1 (ru) * | 1981-12-29 | 1983-03-07 | Центральный научно-исследовательский институт бумаги | Способ получени термомеханической древесной массы |
| US4534954A (en) * | 1982-08-17 | 1985-08-13 | Virginia Chemicals Inc. | Sodium hydrosulfite slurries |
| DE3406322A1 (de) * | 1984-02-22 | 1985-08-22 | Basf Ag, 6700 Ludwigshafen | Stabilisierte, wasser enthaltende, alkalisch eingestellte natriumdithionitzubereitungen |
| FI850374L (fi) * | 1985-01-29 | 1986-07-30 | Ahlstroem Oy | Foerfarande foer blekning av massa. |
| SE8501246L (sv) * | 1985-03-13 | 1986-09-14 | Eka Ab | Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering |
-
1988
- 1988-03-16 GB GB8806206A patent/GB2215350B/en not_active Expired - Lifetime
-
1989
- 1989-03-13 DE DE68924793T patent/DE68924793T3/de not_active Expired - Fee Related
- 1989-03-13 AT AT89302431T patent/ATE130388T1/de active
- 1989-03-13 EP EP89302431A patent/EP0333398B2/fr not_active Expired - Lifetime
- 1989-03-15 CA CA000593749A patent/CA1325868C/fr not_active Expired - Fee Related
- 1989-03-15 NO NO891117A patent/NO174560B/no unknown
- 1989-03-16 FI FI891248A patent/FI96521B/fi not_active Application Discontinuation
-
1990
- 1990-04-09 US US07/506,576 patent/US5129987A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE68924793T3 (de) | 2001-07-05 |
| DE68924793T2 (de) | 1996-05-02 |
| GB2215350A (en) | 1989-09-20 |
| NO891117L (no) | 1989-09-18 |
| EP0333398B1 (fr) | 1995-11-15 |
| GB2215350B (en) | 1992-05-20 |
| FI891248A0 (fi) | 1989-03-16 |
| GB8806206D0 (en) | 1988-04-13 |
| DE68924793D1 (de) | 1995-12-21 |
| US5129987A (en) | 1992-07-14 |
| EP0333398B2 (fr) | 2001-04-11 |
| ATE130388T1 (de) | 1995-12-15 |
| EP0333398A2 (fr) | 1989-09-20 |
| FI96521B (fi) | 1996-03-29 |
| EP0333398A3 (fr) | 1991-08-07 |
| CA1325868C (fr) | 1994-01-11 |
| FI891248A (fi) | 1989-09-17 |
| NO891117D0 (no) | 1989-03-15 |
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