FI95292C - Massan valkaisutapa - Google Patents
Massan valkaisutapa Download PDFInfo
- Publication number
- FI95292C FI95292C FI906401A FI906401A FI95292C FI 95292 C FI95292 C FI 95292C FI 906401 A FI906401 A FI 906401A FI 906401 A FI906401 A FI 906401A FI 95292 C FI95292 C FI 95292C
- Authority
- FI
- Finland
- Prior art keywords
- ozone
- chlorine dioxide
- pulp
- bleaching
- added
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 31
- 238000004076 pulp bleaching Methods 0.000 title description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 92
- 238000004061 bleaching Methods 0.000 claims description 62
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 55
- 239000004155 Chlorine dioxide Substances 0.000 claims description 46
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 46
- 238000005406 washing Methods 0.000 claims description 21
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 15
- 229910001882 dioxygen Inorganic materials 0.000 claims description 15
- 238000011282 treatment Methods 0.000 claims description 14
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 12
- 239000000460 chlorine Substances 0.000 claims description 12
- 229910052801 chlorine Inorganic materials 0.000 claims description 10
- 229920005610 lignin Polymers 0.000 claims description 10
- 239000012159 carrier gas Substances 0.000 claims description 9
- 239000007844 bleaching agent Substances 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 229920001131 Pulp (paper) Polymers 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 150000002500 ions Chemical class 0.000 claims 1
- 238000012163 sequencing technique Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 20
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 15
- 238000007792 addition Methods 0.000 description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 8
- 229910021653 sulphate ion Inorganic materials 0.000 description 7
- 238000002156 mixing Methods 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000013019 agitation Methods 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229910001902 chlorine oxide Inorganic materials 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000002535 acidifier Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
-
- 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8904404 | 1989-12-29 | ||
| SE8904404A SE467261B (sv) | 1989-12-29 | 1989-12-29 | Blekning av cellulosamassa med klordioxid och ozon i ett och samma steg |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| FI906401A0 FI906401A0 (fi) | 1990-12-27 |
| FI906401L FI906401L (fi) | 1991-06-30 |
| FI95292B FI95292B (fi) | 1995-09-29 |
| FI95292C true FI95292C (fi) | 1996-01-10 |
Family
ID=20377905
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI906401A FI95292C (fi) | 1989-12-29 | 1990-12-27 | Massan valkaisutapa |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JP2934512B2 (de) |
| AT (1) | AT395444B (de) |
| BR (1) | BR9006579A (de) |
| CA (1) | CA2031850C (de) |
| DE (1) | DE4039294C2 (de) |
| FI (1) | FI95292C (de) |
| FR (1) | FR2656633B1 (de) |
| NO (1) | NO176060C (de) |
| SE (1) | SE467261B (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5322598A (en) * | 1990-02-06 | 1994-06-21 | Olin Corporation | Chlorine dioxide generation using inert load of sodium perchlorate |
| US6174409B1 (en) | 1997-09-19 | 2001-01-16 | American Air Liquide Inc. | Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process |
| SE522593C2 (sv) * | 1999-07-06 | 2004-02-24 | Kvaerner Pulping Tech | System och förfarande för syragasdelignifiering av massa av lignocellulosahaltigt material |
| GB0322598D0 (en) | 2003-09-26 | 2003-10-29 | Victrex Mfg Ltd | Polymeric material |
| JP5987223B2 (ja) * | 2012-03-06 | 2016-09-07 | 愛媛県 | セルロース溶液の製造方法、セルロースの製造方法、セルロースの糖化方法 |
| CN110656527A (zh) * | 2019-09-12 | 2020-01-07 | 华南理工大学 | 一种臭氧和二氧化氯协同高效漂白中浓纸浆的方法及装置 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1298875B (de) * | 1965-01-09 | 1969-07-03 | Gunnar Alexander Dipl Ing | Verfahren zum Bleichen von Zellstoff im chlorhaltigen Bleichbad und mit Ozon |
| US4080249A (en) * | 1976-06-02 | 1978-03-21 | International Paper Company | Delignification and bleaching of a lignocellulosic pulp slurry with ozone |
| US4902381A (en) * | 1988-12-09 | 1990-02-20 | Kamyr, Inc. | Method of bleaching pulp with ozone-chlorine mixtures |
| US4959124A (en) * | 1989-05-05 | 1990-09-25 | International Paper Company | Method of bleaching kraft pulp in a DZED sequence |
| FI89516B (fi) * | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
-
1989
- 1989-12-29 SE SE8904404A patent/SE467261B/sv unknown
-
1990
- 1990-12-09 DE DE4039294A patent/DE4039294C2/de not_active Expired - Fee Related
- 1990-12-10 CA CA002031850A patent/CA2031850C/en not_active Expired - Lifetime
- 1990-12-12 AT AT0251890A patent/AT395444B/de not_active IP Right Cessation
- 1990-12-26 BR BR909006579A patent/BR9006579A/pt not_active IP Right Cessation
- 1990-12-27 NO NO905598A patent/NO176060C/no unknown
- 1990-12-27 FI FI906401A patent/FI95292C/fi active IP Right Grant
- 1990-12-28 JP JP2415578A patent/JP2934512B2/ja not_active Expired - Fee Related
- 1990-12-28 FR FR9016499A patent/FR2656633B1/fr not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2031850A1 (en) | 1991-06-30 |
| JP2934512B2 (ja) | 1999-08-16 |
| SE467261B (sv) | 1992-06-22 |
| FI906401A0 (fi) | 1990-12-27 |
| SE8904404L (sv) | 1991-06-30 |
| AT395444B (de) | 1992-12-28 |
| FR2656633A1 (fr) | 1991-07-05 |
| NO905598L (no) | 1991-07-01 |
| BR9006579A (pt) | 1991-10-01 |
| CA2031850C (en) | 1995-11-21 |
| JPH04263687A (ja) | 1992-09-18 |
| FR2656633B1 (fr) | 1996-06-07 |
| ATA251890A (de) | 1992-05-15 |
| DE4039294C2 (de) | 1993-11-11 |
| NO905598D0 (no) | 1990-12-27 |
| DE4039294A1 (de) | 1991-07-04 |
| FI906401L (fi) | 1991-06-30 |
| NO176060B (no) | 1994-10-17 |
| NO176060C (no) | 1995-01-25 |
| FI95292B (fi) | 1995-09-29 |
| SE8904404D0 (sv) | 1989-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| HC | Name/ company changed in application |
Owner name: KVAERNER PULPING TECHNOLOGIES AKTIEBOLAG |
|
| BB | Publication of examined application | ||
| FG | Patent granted |
Owner name: KVAERNER PULPING AB |
|
| PC | Transfer of assignment of patent |
Owner name: METSO FIBER KARLSTAD AB Free format text: METSO FIBER KARLSTAD AB |