FR2507639A1 - Procede de blanchiment de matieres contenant de la cellulose - Google Patents
Procede de blanchiment de matieres contenant de la cellulose Download PDFInfo
- Publication number
- FR2507639A1 FR2507639A1 FR8210005A FR8210005A FR2507639A1 FR 2507639 A1 FR2507639 A1 FR 2507639A1 FR 8210005 A FR8210005 A FR 8210005A FR 8210005 A FR8210005 A FR 8210005A FR 2507639 A1 FR2507639 A1 FR 2507639A1
- Authority
- FR
- France
- Prior art keywords
- treatment
- alkali
- oxygen
- bleaching
- pulp
- 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.)
- Granted
Links
- 238000004061 bleaching Methods 0.000 title claims abstract description 26
- 229920002678 cellulose Polymers 0.000 title claims abstract description 11
- 239000001913 cellulose Substances 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims description 30
- 238000011282 treatment Methods 0.000 claims abstract description 45
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000001301 oxygen Substances 0.000 claims abstract description 27
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 27
- 239000000126 substance Substances 0.000 claims abstract description 18
- 229920005610 lignin Polymers 0.000 claims abstract description 17
- 238000000605 extraction Methods 0.000 claims abstract description 16
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000002023 wood Substances 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 239000003599 detergent Substances 0.000 claims description 5
- 235000008216 herbs Nutrition 0.000 claims description 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims 2
- 239000005416 organic matter Substances 0.000 claims 1
- 235000015927 pasta Nutrition 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 24
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 10
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- 239000004155 Chlorine dioxide Substances 0.000 description 5
- 239000000460 chlorine Substances 0.000 description 5
- 235000019398 chlorine dioxide Nutrition 0.000 description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 229910001902 chlorine oxide Inorganic materials 0.000 description 2
- 238000006482 condensation reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- RGHNJXZEOKUKBD-SQOUGZDYSA-M D-gluconate Chemical compound OC[C@@H](O)[C@@H](O)[C@H](O)[C@@H](O)C([O-])=O RGHNJXZEOKUKBD-SQOUGZDYSA-M 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940050410 gluconate Drugs 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007430 reference method Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 231100000167 toxic agent Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000005406 washing 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
-
- 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
- D21C9/1068—Bleaching ; Apparatus therefor with O2
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI811800A FI67241B (fi) | 1981-06-10 | 1981-06-10 | Saett foer blekning av cellulosahaltiga material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2507639A1 true FR2507639A1 (fr) | 1982-12-17 |
| FR2507639B1 FR2507639B1 (enrdf_load_stackoverflow) | 1985-04-12 |
Family
ID=8514486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8210005A Granted FR2507639A1 (fr) | 1981-06-10 | 1982-06-09 | Procede de blanchiment de matieres contenant de la cellulose |
Country Status (4)
| Country | Link |
|---|---|
| BR (1) | BR8203307A (enrdf_load_stackoverflow) |
| FI (1) | FI67241B (enrdf_load_stackoverflow) |
| FR (1) | FR2507639A1 (enrdf_load_stackoverflow) |
| MX (1) | MX156288A (enrdf_load_stackoverflow) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10538012B2 (en) | 2015-12-07 | 2020-01-21 | Timothee Boitouzet | Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process |
| US11656756B2 (en) | 2018-02-09 | 2023-05-23 | Sas Woodoo | Touch detection device with touch interface made of composite material |
| US11820041B2 (en) | 2017-06-07 | 2023-11-21 | Sas Woodoo | Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2071947A1 (enrdf_load_stackoverflow) * | 1969-12-19 | 1971-09-24 | Canadian Ind | |
| FR2220620A1 (enrdf_load_stackoverflow) * | 1973-03-07 | 1974-10-04 | Int Paper Co | |
| FR2456159A1 (fr) * | 1979-05-11 | 1980-12-05 | Sca Development Ab | Procede pour le blanchiement au moyen d'oxygene de matieres contenant de la ligno-cellulose |
-
1981
- 1981-06-10 FI FI811800A patent/FI67241B/fi not_active Application Discontinuation
-
1982
- 1982-06-01 MX MX19296282A patent/MX156288A/es unknown
- 1982-06-04 BR BR8203307A patent/BR8203307A/pt not_active IP Right Cessation
- 1982-06-09 FR FR8210005A patent/FR2507639A1/fr active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2071947A1 (enrdf_load_stackoverflow) * | 1969-12-19 | 1971-09-24 | Canadian Ind | |
| FR2220620A1 (enrdf_load_stackoverflow) * | 1973-03-07 | 1974-10-04 | Int Paper Co | |
| FR2456159A1 (fr) * | 1979-05-11 | 1980-12-05 | Sca Development Ab | Procede pour le blanchiement au moyen d'oxygene de matieres contenant de la ligno-cellulose |
Non-Patent Citations (1)
| Title |
|---|
| TAPPI, J. TECHN. ASS. PULP PAPER IND., vol. 58, no. 4, avril 1975, Atlanta, GA (US) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10538012B2 (en) | 2015-12-07 | 2020-01-21 | Timothee Boitouzet | Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process |
| US11254026B2 (en) | 2015-12-07 | 2022-02-22 | Timothée BOITOUZET | Process for partial delignification and filling of a lignocellulosic material, and composite material structure able to be obtained by this process |
| US11820041B2 (en) | 2017-06-07 | 2023-11-21 | Sas Woodoo | Process for supercritical or subcritical partial delignification and filling of a lignocellulosic material |
| US11656756B2 (en) | 2018-02-09 | 2023-05-23 | Sas Woodoo | Touch detection device with touch interface made of composite material |
| US11662899B2 (en) | 2018-02-09 | 2023-05-30 | Sas Woodoo | Touch detection device with touch interface made of composite material |
Also Published As
| Publication number | Publication date |
|---|---|
| FI811800A0 (fi) | 1981-06-10 |
| FR2507639B1 (enrdf_load_stackoverflow) | 1985-04-12 |
| MX156288A (es) | 1988-08-08 |
| FI67241B (fi) | 1984-10-31 |
| BR8203307A (pt) | 1983-05-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |