NO833282L - Fremgangsmaate ved bleking av celluloseholdig materiale - Google Patents
Fremgangsmaate ved bleking av celluloseholdig materialeInfo
- Publication number
- NO833282L NO833282L NO833282A NO833282A NO833282L NO 833282 L NO833282 L NO 833282L NO 833282 A NO833282 A NO 833282A NO 833282 A NO833282 A NO 833282A NO 833282 L NO833282 L NO 833282L
- Authority
- NO
- Norway
- Prior art keywords
- bleaching
- phase
- pulp
- dewatering
- chemicals
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000004061 bleaching Methods 0.000 claims description 55
- 239000000126 substance Substances 0.000 claims description 35
- 150000002978 peroxides Chemical class 0.000 claims description 20
- 239000007788 liquid Substances 0.000 claims description 11
- 239000002351 wastewater Substances 0.000 claims description 8
- 239000003513 alkali Substances 0.000 claims description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 6
- 238000007670 refining Methods 0.000 claims description 4
- 238000012216 screening Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims 1
- 239000007844 bleaching agent Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- 150000004760 silicates Chemical class 0.000 description 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical class OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material 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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Conductive Materials (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8205241A SE451606B (sv) | 1982-09-14 | 1982-09-14 | Sett vid blekning av hogutbytesmassor medelst peroxider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO833282L true NO833282L (no) | 1984-03-15 |
Family
ID=20347840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO833282A NO833282L (no) | 1982-09-14 | 1983-09-13 | Fremgangsmaate ved bleking av celluloseholdig materiale |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5966589A (de) |
| AU (1) | AU554072B2 (de) |
| DE (1) | DE3333219C2 (de) |
| FI (1) | FI74054B (de) |
| FR (1) | FR2537177B1 (de) |
| IT (1) | IT1170488B (de) |
| NL (1) | NL8303159A (de) |
| NO (1) | NO833282L (de) |
| SE (1) | SE451606B (de) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1249402A (en) * | 1984-12-21 | 1989-01-31 | Pulp And Paper Research Institute Of Canada | Multistage brightening of high yield and ultra high- yield wood pulps |
| FR2582692B1 (fr) * | 1985-05-29 | 1987-12-11 | Atochem | Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment |
| FR2593527B1 (fr) * | 1986-01-30 | 1988-03-25 | Centre Tech Ind Papier | Procede de blanchiment des pates mecaniques. |
| FR2622221A1 (fr) * | 1987-10-22 | 1989-04-28 | Atochem | Procede de blanchiment de pates |
| FR2661430B1 (fr) * | 1990-04-30 | 1992-07-17 | Atochem | Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement. |
| FR2661431B1 (fr) * | 1990-04-30 | 1992-07-17 | Atochem | Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement. |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2008603A (en) * | 1931-09-17 | 1935-07-16 | Thorne Carl Busch | Apparatus for refining pulp and the like |
| DE1203592B (de) * | 1962-02-23 | 1965-10-21 | Rudolf Bott Dipl Ing | Verfahren zum Bleichen von cellulosehaltigen Faserstoffen |
| GB1106842A (en) * | 1965-01-25 | 1968-03-20 | Electric Reduction Co | Manufacture of cellulosic pulp |
| FR1524581A (fr) * | 1966-05-25 | 1968-05-10 | Solvay | Procédé de réglage de la blancheur d'une pâte cellulosique traitée par le peroxyde d'hydrogène ou un produit similaire |
| DE2219505C3 (de) * | 1972-04-21 | 1974-10-17 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Chlorfreie Mehrstufenbleiche von Zellstoff |
| DE2219504C2 (de) * | 1972-04-21 | 1974-10-03 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz |
| SE390178B (sv) * | 1974-09-04 | 1976-12-06 | Sunds Ab | Sett vid blekning av lignocellulosahaltigt material med en kombination av gasfasklorering och ett system for fortrengningsblekning innehallande klordioxid |
| SE415581B (sv) * | 1977-04-18 | 1980-10-13 | Mo Och Domsjoe Ab | Forfarande for perocidblekning av hogutbytesmassa |
| SE420329C (sv) * | 1978-02-16 | 1984-10-15 | Mo Och Domsjoe Ab | Forfarande for framstellning av slipmassa vid overtryck |
| JPS5545806A (en) * | 1978-09-21 | 1980-03-31 | Oji Paper Co | Peroxide bleaching method of wood pulp |
| AU539108B2 (en) * | 1979-04-17 | 1984-09-13 | Interox Societe Anonyme | Delignification of unbleached chemical pulp |
| JPS5721591A (en) * | 1980-07-11 | 1982-02-04 | Mitsubishi Gas Chemical Co | Peroxide bleaching of wood pulp |
-
1982
- 1982-09-14 SE SE8205241A patent/SE451606B/sv not_active Application Discontinuation
-
1983
- 1983-08-24 AU AU18379/83A patent/AU554072B2/en not_active Ceased
- 1983-08-26 FR FR8313764A patent/FR2537177B1/fr not_active Expired
- 1983-09-12 IT IT48965/83A patent/IT1170488B/it active
- 1983-09-12 FI FI833246A patent/FI74054B/fi not_active Application Discontinuation
- 1983-09-12 JP JP58168082A patent/JPS5966589A/ja active Pending
- 1983-09-13 NO NO833282A patent/NO833282L/no unknown
- 1983-09-13 NL NL8303159A patent/NL8303159A/nl not_active Application Discontinuation
- 1983-09-14 DE DE3333219A patent/DE3333219C2/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2537177B1 (fr) | 1986-02-21 |
| IT1170488B (it) | 1987-06-03 |
| IT8348965A0 (it) | 1983-09-12 |
| FR2537177A1 (fr) | 1984-06-08 |
| FI833246A (fi) | 1984-03-15 |
| SE8205241L (sv) | 1984-03-15 |
| JPS5966589A (ja) | 1984-04-16 |
| NL8303159A (nl) | 1984-04-02 |
| DE3333219C2 (de) | 1986-10-23 |
| FI833246A0 (fi) | 1983-09-12 |
| FI74054B (fi) | 1987-08-31 |
| SE451606B (sv) | 1987-10-19 |
| AU1837983A (en) | 1984-03-22 |
| SE8205241D0 (sv) | 1982-09-14 |
| DE3333219A1 (de) | 1984-03-15 |
| AU554072B2 (en) | 1986-08-07 |
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