NO119825B - - Google Patents
Download PDFInfo
- Publication number
- NO119825B NO119825B NO16370866A NO16370866A NO119825B NO 119825 B NO119825 B NO 119825B NO 16370866 A NO16370866 A NO 16370866A NO 16370866 A NO16370866 A NO 16370866A NO 119825 B NO119825 B NO 119825B
- Authority
- NO
- Norway
- Prior art keywords
- bleaching
- mass
- treatment chamber
- swirling
- room
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 claims description 30
- 239000007844 bleaching agent Substances 0.000 claims description 17
- 239000003153 chemical reaction reagent Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 8
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- 239000000126 substance Substances 0.000 claims description 6
- 239000003595 mist Substances 0.000 claims description 4
- 235000013311 vegetables Nutrition 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 239000002023 wood Substances 0.000 description 7
- 229920001131 Pulp (paper) Polymers 0.000 description 6
- 241000196324 Embryophyta Species 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000123 paper Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000000265 homogenisation Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 235000018185 Betula X alpestris Nutrition 0.000 description 1
- 235000018212 Betula X uliginosa Nutrition 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 241000219000 Populus Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- -1 gaseous Chemical compound 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 150000002978 peroxides Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- JVBXVOWTABLYPX-UHFFFAOYSA-L sodium dithionite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])=O JVBXVOWTABLYPX-UHFFFAOYSA-L 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- PENRVBJTRIYHOA-UHFFFAOYSA-L zinc dithionite Chemical compound [Zn+2].[O-]S(=O)S([O-])=O PENRVBJTRIYHOA-UHFFFAOYSA-L 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
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 |
|---|---|---|---|
| IT1018665 | 1965-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO119825B true NO119825B (fi) | 1970-07-06 |
Family
ID=11133959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO16370866A NO119825B (fi) | 1965-10-16 | 1966-06-29 |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT277748B (fi) |
| BE (1) | BE681416A (fi) |
| DE (1) | DE1546282A1 (fi) |
| FI (1) | FI46865C (fi) |
| FR (1) | FR1496386A (fi) |
| NO (1) | NO119825B (fi) |
| SE (1) | SE341517B (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0214982A1 (en) * | 1984-05-15 | 1987-03-25 | FLINCK, Karl-Evert | Method of bleaching fibre pulp for the production of paper and p aperboard |
| DE3610940A1 (de) * | 1986-03-04 | 1987-09-10 | Escher Wyss Gmbh | Hochtemperatur-hochkonsistenz-schnellbleiche |
-
1966
- 1966-05-13 DE DE19661546282 patent/DE1546282A1/de active Pending
- 1966-05-16 AT AT462766A patent/AT277748B/de not_active IP Right Cessation
- 1966-05-23 BE BE681416D patent/BE681416A/xx unknown
- 1966-06-02 SE SE758766A patent/SE341517B/xx unknown
- 1966-06-17 FI FI162466A patent/FI46865C/fi active
- 1966-06-29 NO NO16370866A patent/NO119825B/no unknown
- 1966-10-11 FR FR79457A patent/FR1496386A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1546282A1 (de) | 1969-10-02 |
| BE681416A (fi) | 1966-10-31 |
| SE341517B (fi) | 1971-12-27 |
| FI46865B (fi) | 1973-04-02 |
| FI46865C (fi) | 1973-07-10 |
| FR1496386A (fr) | 1967-09-29 |
| AT277748B (de) | 1970-01-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO163708B (no) | Anordning og fremgangsmaate for bruk ved broenntesting. | |
| ES2708991T3 (es) | Un método novedoso para producir microcelulosa | |
| US3725193A (en) | Process and apparatus for the chemical reaction between a gas and a wood pulp | |
| US4187141A (en) | Method of producing bleached mechanical pulp | |
| US4426258A (en) | Drying wood pulp in the presence of an alkali metal sulphite | |
| SE422818B (sv) | Forfarande for foredling av allulosamassa genom blekning eller extrahering | |
| FI61055B (fi) | Foerfarande foer peroxidblekning av hoegutbytesmassa | |
| RU2636556C1 (ru) | Непрерывный способ производства целлюлозы из травянистого растительного сырья | |
| CN101171388A (zh) | 适合制造纸或纸板的机械浆的制备方法 | |
| US4087317A (en) | High yield, low cost cellulosic pulp and hydrated gels therefrom | |
| US2717195A (en) | Method for treating a fibrous material | |
| NO151596B (no) | Fremgangsmaate for fremstilling av raffinoermasse fra trefils ved hjelp av en mekanisk-kjemisk-termisk behandling | |
| US2047170A (en) | Treatment of fibrous material | |
| NO119825B (fi) | ||
| US3238088A (en) | Continuous digesting of cellulosic fibrous material at decreasing pressure with mechanical defibering therebetween | |
| US4030969A (en) | Method of dispersing a bleaching agent into a stream of fibrous cellulosic pulp material in a throttling nozzle | |
| US2178266A (en) | Continuous process for the manufacture of semipulp | |
| US3069309A (en) | Pulp bleaching | |
| US1367895A (en) | Process for the manufacturing of fibrous material from wood or the like | |
| KR930003394B1 (ko) | 셀룰로오즈 펄프의 제조방법 | |
| US1818897A (en) | Method of preparing and separating the cellulose material, suitable for paper-manufacturing, from plant raw material with pith fiber | |
| AU692922B2 (en) | Method and apparatus for the continuous production of cellulosic pulp | |
| NO820336L (no) | Fremstilling av kjemimekanisk masse | |
| NO150448B (no) | Cellulosemasse med gode absorpsjonsegenskaper og fremgangsmaate ved fremstilling derav | |
| US4221630A (en) | Wet method of preparing fiberboard products in a substantially closed and balanced white water system |