NO800041L - Fremgangsmaate for vasking av cellulosemasse. - Google Patents
Fremgangsmaate for vasking av cellulosemasse.Info
- Publication number
- NO800041L NO800041L NO800041A NO800041A NO800041L NO 800041 L NO800041 L NO 800041L NO 800041 A NO800041 A NO 800041A NO 800041 A NO800041 A NO 800041A NO 800041 L NO800041 L NO 800041L
- Authority
- NO
- Norway
- Prior art keywords
- liquid
- pulp
- filtrate
- mat
- washer
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 110
- 239000000706 filtrate Substances 0.000 claims abstract description 108
- 239000000126 substance Substances 0.000 claims abstract description 56
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical group [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 38
- 239000000835 fiber Substances 0.000 claims description 17
- 239000007791 liquid phase Substances 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 7
- 229920002678 cellulose Polymers 0.000 claims description 3
- 239000001913 cellulose Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 abstract description 93
- 238000005201 scrubbing Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 32
- 238000004140 cleaning Methods 0.000 description 24
- 230000002378 acidificating effect Effects 0.000 description 19
- 238000007789 sealing Methods 0.000 description 18
- 239000013055 pulp slurry Substances 0.000 description 16
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 15
- 239000013505 freshwater Substances 0.000 description 13
- 239000002002 slurry Substances 0.000 description 13
- 238000010790 dilution Methods 0.000 description 9
- 239000012895 dilution Substances 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 238000004061 bleaching Methods 0.000 description 7
- 238000002955 isolation Methods 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000002253 acid Substances 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 239000007844 bleaching agent Substances 0.000 description 5
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000010979 pH adjustment Methods 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 238000004076 pulp bleaching Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009466 transformation Effects 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
-
- 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
- D21C9/1073—Bleaching ; Apparatus therefor with O3
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 |
|---|---|---|---|
| US249279A | 1979-01-11 | 1979-01-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO800041L true NO800041L (no) | 1980-07-14 |
Family
ID=21701039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO800041A NO800041L (no) | 1979-01-11 | 1980-01-08 | Fremgangsmaate for vasking av cellulosemasse. |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5598991A (it) |
| AU (1) | AU527540B2 (it) |
| CA (1) | CA1123249A (it) |
| FI (1) | FI800080A (it) |
| FR (1) | FR2446354A1 (it) |
| NO (1) | NO800041L (it) |
| NZ (1) | NZ192583A (it) |
| SE (1) | SE8000250L (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE426607B (sv) * | 1982-03-29 | 1983-01-31 | Kamyr Ab | Sett att behandla en massasuspension som er i rorelse lengs en bana medelst fortrengning av massans suspensionsvetska med en eller flera ersettningsvetskor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1106842A (en) * | 1965-01-25 | 1968-03-20 | Electric Reduction Co | Manufacture of cellulosic pulp |
| ZA761255B (en) * | 1975-03-11 | 1977-03-30 | Erco Envirotech Ltd | Bleachplant operation |
| US4104114A (en) * | 1977-05-05 | 1978-08-01 | Erco Envirotech Ltd. | Bleach plant operation |
-
1980
- 1980-01-08 NO NO800041A patent/NO800041L/no unknown
- 1980-01-10 CA CA343,436A patent/CA1123249A/en not_active Expired
- 1980-01-10 NZ NZ192583A patent/NZ192583A/xx unknown
- 1980-01-11 JP JP198380A patent/JPS5598991A/ja active Pending
- 1980-01-11 AU AU54569/80A patent/AU527540B2/en not_active Ceased
- 1980-01-11 SE SE8000250A patent/SE8000250L/ not_active Application Discontinuation
- 1980-01-11 FI FI800080A patent/FI800080A/fi not_active Application Discontinuation
- 1980-01-11 FR FR8000608A patent/FR2446354A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2446354B1 (it) | 1984-10-12 |
| JPS5598991A (en) | 1980-07-28 |
| FI800080A (fi) | 1980-07-12 |
| CA1123249A (en) | 1982-05-11 |
| NZ192583A (en) | 1983-03-15 |
| SE8000250L (sv) | 1980-07-12 |
| AU5456980A (en) | 1980-07-17 |
| AU527540B2 (en) | 1983-03-10 |
| FR2446354A1 (fr) | 1980-08-08 |
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