FI52878C - Foerfarande foer blekning av cellulosahaltigt material. - Google Patents
Foerfarande foer blekning av cellulosahaltigt material. Download PDFInfo
- Publication number
- FI52878C FI52878C FI743702A FI370274A FI52878C FI 52878 C FI52878 C FI 52878C FI 743702 A FI743702 A FI 743702A FI 370274 A FI370274 A FI 370274A FI 52878 C FI52878 C FI 52878C
- Authority
- FI
- Finland
- Prior art keywords
- oxygen
- alkali
- bleaching
- mass
- pulp
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 28
- 229910052760 oxygen Inorganic materials 0.000 claims description 28
- 239000001301 oxygen Substances 0.000 claims description 28
- 238000000034 method Methods 0.000 claims description 26
- 238000004061 bleaching Methods 0.000 claims description 21
- 239000003513 alkali Substances 0.000 claims description 18
- 229920002678 cellulose Polymers 0.000 claims description 16
- 239000001913 cellulose Substances 0.000 claims description 16
- 239000006260 foam Substances 0.000 claims description 16
- 239000007789 gas Substances 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 11
- 239000004604 Blowing Agent Substances 0.000 claims description 7
- 229920005610 lignin Polymers 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- 239000004088 foaming agent Substances 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 2
- YRIUSKIDOIARQF-UHFFFAOYSA-N dodecyl benzenesulfonate Chemical compound CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 YRIUSKIDOIARQF-UHFFFAOYSA-N 0.000 claims description 2
- 229940071161 dodecylbenzenesulfonate Drugs 0.000 claims description 2
- 239000002699 waste material Substances 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 2
- 239000007787 solid Substances 0.000 claims 2
- 239000011593 sulfur Substances 0.000 claims 2
- 229910052717 sulfur Inorganic materials 0.000 claims 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 23
- 239000000835 fiber Substances 0.000 description 22
- 238000002474 experimental method Methods 0.000 description 6
- 238000005406 washing Methods 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 238000010411 cooking Methods 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 230000035484 reaction time Effects 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 229910021653 sulphate ion Inorganic materials 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920002522 Wood fibre Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- UYDLBVPAAFVANX-UHFFFAOYSA-N octylphenoxy polyethoxyethanol Chemical compound CC(C)(C)CC(C)(C)C1=CC=C(OCCOCCOCCOCCO)C=C1 UYDLBVPAAFVANX-UHFFFAOYSA-N 0.000 description 1
- 230000036284 oxygen consumption Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000271 synthetic detergent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002025 wood fiber 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
- D21C9/147—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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7317221 | 1973-12-20 | ||
| SE7317221A SE390549C (sv) | 1973-12-20 | 1973-12-20 | Sett att bleka cellulosahaltigt material med syre eller fritt syre innehallande gas i alkalisk miljo |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI370274A7 FI370274A7 (enrdf_load_stackoverflow) | 1975-06-21 |
| FI52878B FI52878B (enrdf_load_stackoverflow) | 1977-08-31 |
| FI52878C true FI52878C (fi) | 1987-09-24 |
Family
ID=20319462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI743702A FI52878C (fi) | 1973-12-20 | 1974-12-19 | Foerfarande foer blekning av cellulosahaltigt material. |
Country Status (12)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4209359A (en) * | 1978-10-23 | 1980-06-24 | International Paper Company | Process for removing residual oxygen from oxygen-bleached pulp |
| SE462919B (sv) * | 1979-05-11 | 1990-09-17 | Sunds Defibrator Ind Ab | Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre |
| US4574032A (en) * | 1979-10-15 | 1986-03-04 | Westvaco Corporation | Process for delignification of lignocellulosic material in the presence of anthraquinone in solution with white and black liquors |
| SE452896B (sv) * | 1985-01-24 | 1987-12-21 | Aga Ab | Forfarande for behandling av cellulosamassor |
| SE460202B (sv) * | 1987-03-13 | 1989-09-18 | Aga Ab | Saett vid behandling av ett material med en gas i en vaetska |
| FI89516B (fi) * | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
| US5460696A (en) * | 1993-08-12 | 1995-10-24 | The Boc Group, Inc. | Oxygen delignification method incorporating wood pulp mixing apparatus |
-
1973
- 1973-12-20 SE SE7317221A patent/SE390549C/xx unknown
-
1974
- 1974-12-11 CA CA215,743A patent/CA1065105A/en not_active Expired
- 1974-12-12 ZA ZA00747918A patent/ZA747918B/xx unknown
- 1974-12-13 GB GB5403874A patent/GB1452710A/en not_active Expired
- 1974-12-19 IT IT70687/74A patent/IT1027773B/it active
- 1974-12-19 NO NO744609A patent/NO142128C/no unknown
- 1974-12-19 FI FI743702A patent/FI52878C/fi active
- 1974-12-19 JP JP49146650A patent/JPS524643B2/ja not_active Expired
- 1974-12-19 DE DE19742460144 patent/DE2460144B2/de not_active Ceased
- 1974-12-19 BR BR10652/74A patent/BR7410652D0/pt unknown
- 1974-12-19 SU SU742090807A patent/SU850019A3/ru active
- 1974-12-20 FR FR7442400A patent/FR2255419B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| ZA747918B (en) | 1975-12-31 |
| IT1027773B (it) | 1978-12-20 |
| GB1452710A (en) | 1976-10-13 |
| DE2460144A1 (de) | 1975-07-03 |
| JPS524643B2 (enrdf_load_stackoverflow) | 1977-02-05 |
| NO142128B (no) | 1980-03-24 |
| FI52878B (enrdf_load_stackoverflow) | 1977-08-31 |
| SU850019A3 (ru) | 1981-07-23 |
| SE390549C (sv) | 1986-04-14 |
| FR2255419B1 (enrdf_load_stackoverflow) | 1979-06-01 |
| JPS5094202A (enrdf_load_stackoverflow) | 1975-07-26 |
| FI370274A7 (enrdf_load_stackoverflow) | 1975-06-21 |
| FR2255419A1 (enrdf_load_stackoverflow) | 1975-07-18 |
| CA1065105A (en) | 1979-10-30 |
| NO744609L (enrdf_load_stackoverflow) | 1975-07-14 |
| SE7317221L (enrdf_load_stackoverflow) | 1975-06-23 |
| DE2460144B2 (de) | 1977-03-03 |
| BR7410652D0 (pt) | 1975-09-02 |
| NO142128C (no) | 1980-07-02 |
| SE390549B (sv) | 1976-12-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI73750B (fi) | Saett vid blekning av lignocellulosahaltigt material. | |
| US3298899A (en) | Method and arrangement for washing and cooling at the outlet end of a continuous cellulose digester | |
| FI61925B (fi) | Saett vid kontinuerlig alkalisk delignifiering av lignocellulosamaterial i tvao eller flera steg varav det sista med syrgas | |
| US4595455A (en) | Method for controlling batch alkaline pulp digestion in combination with continuous alkaline oxygen delignification | |
| FI87939B (fi) | Foerfarande vid bleknig av cellulosamassa eller fraktion daerav, anordning att anvaendas foer genomfoerande av foerfarandet och en skruvpress, i synnerhet att anvaendas vid foerfarandet respektive i anordningen | |
| FI52878C (fi) | Foerfarande foer blekning av cellulosahaltigt material. | |
| JPS61152892A (ja) | セルロースパルプの製造法 | |
| FI74053B (fi) | Foerfarande foer delignifiering av kemisk massa. | |
| EP0782642B1 (en) | Method and apparatus for the continuous production of cellulosic pulp | |
| JPS59144692A (ja) | 木材パルプの改良漂白法 | |
| FI73020B (fi) | Foerfarande foer delignifiering/blekning av cellulosamassa. | |
| FI74054B (fi) | Saett vid blekning av cellulosahaltigt material. | |
| JPH05195461A (ja) | パルプの高脱リグニン選択性を得る方法 | |
| RU2071518C1 (ru) | Способ кислородной делигнификации небеленой целлюлозной массы | |
| FI91896C (fi) | Menetelmä happivalkaisun yhteydessä | |
| FI73019C (fi) | Foerfarande foer delignifiering/blekning av cellulosamassa. | |
| US4222818A (en) | Method for treatment of lignocellulosic material with chlorine | |
| CN1080343A (zh) | 氧脱木素过程洗涤压榨的改进 | |
| FI107055B (fi) | Menetelmä alkalisen sellunvalmistusprosessin tehostamiseksi | |
| BR9103492A (pt) | Processo e aparelho para producao de polpa celulosica | |
| FI59630B (fi) | Saett att behandla cellulosafibrer i en cellulosamassa med en vaetska | |
| FI71586C (fi) | Oxygenreaktorsystem foer behandling av fibermassarejekt. | |
| EP0303962A2 (en) | Oxygen alkali extraction process for producing bleached pulp | |
| JPH02169789A (ja) | リグノセルロース物質の漂白方法 | |
| NO163538B (no) | Fremgangsmaate for behandling av avfallspapir. |