BRPI0608555A2 - método para o tratamento de polpa quìmica alvejada - Google Patents
método para o tratamento de polpa quìmica alvejada Download PDFInfo
- Publication number
- BRPI0608555A2 BRPI0608555A2 BRPI0608555-5A BRPI0608555A BRPI0608555A2 BR PI0608555 A2 BRPI0608555 A2 BR PI0608555A2 BR PI0608555 A BRPI0608555 A BR PI0608555A BR PI0608555 A2 BRPI0608555 A2 BR PI0608555A2
- Authority
- BR
- Brazil
- Prior art keywords
- pulp
- treatment
- oxygen
- gas
- process according
- Prior art date
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 25
- 239000001301 oxygen Substances 0.000 claims abstract description 25
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 25
- 229920002678 cellulose Polymers 0.000 claims abstract description 6
- 239000001913 cellulose Substances 0.000 claims abstract description 6
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 32
- 239000003513 alkali Substances 0.000 claims description 26
- 239000004155 Chlorine dioxide Substances 0.000 claims description 16
- 238000004061 bleaching Methods 0.000 claims description 16
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 16
- 239000007844 bleaching agent Substances 0.000 claims description 13
- 239000011121 hardwood Substances 0.000 claims description 12
- 150000002978 peroxides Chemical class 0.000 claims description 12
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 6
- 229910001882 dioxygen Inorganic materials 0.000 claims description 6
- 239000011122 softwood Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 3
- 238000005406 washing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 13
- 238000003860 storage Methods 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 238000000605 extraction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- DTBDAFLSBDGPEA-UHFFFAOYSA-N 3-Methylquinoline Natural products C1=CC=CC2=CC(C)=CN=C21 DTBDAFLSBDGPEA-UHFFFAOYSA-N 0.000 description 1
- 208000032544 Cicatrix Diseases 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 206010039580 Scar Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 235000017168 chlorine Nutrition 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000011005 laboratory method Methods 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012758 reinforcing additive Substances 0.000 description 1
- 208000014745 severe cutaneous adverse reaction Diseases 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L sulfate group Chemical group S(=O)(=O)([O-])[O-] QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000011144 upstream manufacturing 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
- D21C9/1026—Other features in bleaching processes
- D21C9/1047—Conserving the bleached 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
-
- 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
- D21C9/12—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 |
|---|---|---|---|
| SE0500434A SE0500434L (sv) | 2005-02-24 | 2005-02-24 | Behandling av slutblekt massa med i ett milt alkaliskt syrgassteg för att reducera eftergulning |
| PCT/SE2006/000112 WO2006091140A1 (en) | 2005-02-24 | 2006-01-26 | Method for treatment of bleached chemical pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BRPI0608555A2 true BRPI0608555A2 (pt) | 2010-01-12 |
Family
ID=36889322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BRPI0608555-5A BRPI0608555A2 (pt) | 2005-02-24 | 2006-01-26 | método para o tratamento de polpa quìmica alvejada |
Country Status (4)
| Country | Link |
|---|---|
| BR (1) | BRPI0608555A2 (fi) |
| FI (1) | FI20077130A (fi) |
| SE (1) | SE0500434L (fi) |
| WO (1) | WO2006091140A1 (fi) |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA632280A (en) * | 1958-07-02 | 1961-12-05 | Kimberly-Clark Corporation | Manufacture of bleached cellulosic products resistant to brightness reversion |
| GB1062734A (en) * | 1963-03-21 | 1967-03-22 | Mo Och Domsjoe Ab | Improvements in or relating to bleaching cellulose pulp |
| JP2004052115A (ja) * | 2002-07-16 | 2004-02-19 | Nippon Paper Industries Co Ltd | ケミカルパルプの退色性改善方法 |
-
2005
- 2005-02-24 SE SE0500434A patent/SE0500434L/xx not_active IP Right Cessation
-
2006
- 2006-01-26 BR BRPI0608555-5A patent/BRPI0608555A2/pt not_active Application Discontinuation
- 2006-01-26 WO PCT/SE2006/000112 patent/WO2006091140A1/en active Application Filing
-
2007
- 2007-09-20 FI FI20077130A patent/FI20077130A/fi not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006091140A1 (en) | 2006-08-31 |
| SE528066C2 (sv) | 2006-08-22 |
| FI20077130A (fi) | 2007-09-20 |
| SE0500434L (sv) | 2006-08-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11891725B2 (en) | Recycling of cellulosic textiles | |
| US11066784B2 (en) | Method for manufacturing dissolving pulp | |
| PT94287B (pt) | Processo para branqueamentode pastas contendo lignocelulose | |
| BR112014029701B1 (pt) | Processo para fabricação de polpa de dissolução, licor, e, polpa | |
| Behin et al. | Dissolving pulp from corn stalk residue and waste water of Merox unit | |
| BR112016024499B1 (pt) | Método para produzir polpa dissolúvel de baixa viscosidade | |
| CA2670697C (en) | Method for bleaching chemical paper pulps by final ozone treatment at high temperature | |
| Llano et al. | Modelling and optimization of the last two stages of an environmentally-compatible TCF bleaching sequence | |
| Zeinaly et al. | Multi stage peroxide and activated peroxide bleaching of kenaf bast pulp | |
| US3017316A (en) | Method of bleaching wood pulp with chlorine dioxide and sodium borohydride | |
| BRPI0608555A2 (pt) | método para o tratamento de polpa quìmica alvejada | |
| DE69309893T2 (de) | Bleichen von chemischem zellstoff | |
| BR112019014480A2 (pt) | Processo para branqueamento de polpa de papel não branqueada ou pré-branqueada. | |
| US4244780A (en) | Use of thiourea dioxide in pulp bleaching processes to preserve pulp strength and aid in brightness | |
| US1953191A (en) | Process of refining cellulose | |
| DE3034042C2 (de) | Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe aus Lignozellulose-Material | |
| Syed et al. | A comparison of cold and hot caustic extraction of a spruce dissolving sulfite pulp prior to final bleaching | |
| US4526651A (en) | Process for oxygen bleaching paper pulp using melamine as a viscosity stabilizer | |
| BRPI0709804B1 (pt) | processo de branqueamento de polpa química | |
| JPH06501290A (ja) | 高コンシステンシー酸素脱リグニンのためのパルプアルカリ添加法 | |
| SE539163C2 (en) | Chlorine dioxide stage for controlling viscosity in dissolving pulps | |
| Bennington et al. | Simultaneous chemical and mechanical treatment of pulp fibre and the resulting changes in pulp properties | |
| WO2021209586A1 (en) | Delignification process | |
| Quintana et al. | New strategies to bleach dissolving pulps using enzymatic treatments | |
| DE102007007654A1 (de) | FAS Bleiche |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] |