NO771468L - Fremgangsm}te til delignifisering og bleking av cellulosemasse - Google Patents
Fremgangsm}te til delignifisering og bleking av cellulosemasseInfo
- Publication number
- NO771468L NO771468L NO771468A NO771468A NO771468L NO 771468 L NO771468 L NO 771468L NO 771468 A NO771468 A NO 771468A NO 771468 A NO771468 A NO 771468A NO 771468 L NO771468 L NO 771468L
- Authority
- NO
- Norway
- Prior art keywords
- ozone
- bleaching
- pulp
- approx
- oxygen
- Prior art date
Links
- 238000004061 bleaching Methods 0.000 title claims description 64
- 238000000034 method Methods 0.000 title claims description 54
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 86
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 41
- 239000001301 oxygen Substances 0.000 claims description 41
- 229910052760 oxygen Inorganic materials 0.000 claims description 41
- 239000002002 slurry Substances 0.000 claims description 30
- 239000007789 gas Substances 0.000 claims description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- 239000000203 mixture Substances 0.000 claims description 23
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims description 22
- 238000000605 extraction Methods 0.000 claims description 17
- 239000013055 pulp slurry Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000003513 alkali Substances 0.000 claims description 10
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 8
- 230000035484 reaction time Effects 0.000 claims description 5
- 239000004155 Chlorine dioxide Substances 0.000 claims description 4
- 229920002678 cellulose Polymers 0.000 claims description 4
- 239000001913 cellulose Substances 0.000 claims description 4
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Inorganic materials Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 claims description 3
- -1 peroxide compound Chemical class 0.000 claims 3
- 239000011121 hardwood Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 239000000835 fiber Substances 0.000 description 7
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 239000002655 kraft paper Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000007935 neutral effect Effects 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 229920001131 Pulp (paper) Polymers 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 239000011122 softwood Substances 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- KXKVLQRXCPHEJC-UHFFFAOYSA-N acetic acid trimethyl ester Natural products COC(C)=O KXKVLQRXCPHEJC-UHFFFAOYSA-N 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000012978 lignocellulosic material Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- LYGJENNIWJXYER-UHFFFAOYSA-N nitromethane Chemical compound C[N+]([O-])=O LYGJENNIWJXYER-UHFFFAOYSA-N 0.000 description 1
- 238000006385 ozonation reaction Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 239000003223 protective agent Substances 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 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
- D21C9/1073—Bleaching ; Apparatus therefor with O3
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- External Artificial Organs (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US69206276A | 1976-06-02 | 1976-06-02 | |
| US05/705,869 US4080249A (en) | 1976-06-02 | 1976-07-16 | Delignification and bleaching of a lignocellulosic pulp slurry with ozone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO771468L true NO771468L (no) | 1977-12-05 |
Family
ID=27104896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO771468A NO771468L (no) | 1976-06-02 | 1977-04-27 | Fremgangsm}te til delignifisering og bleking av cellulosemasse |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS52148204A (pt) |
| AU (1) | AU509882B2 (pt) |
| BR (1) | BR7703256A (pt) |
| CA (1) | CA1090510A (pt) |
| FI (1) | FI62362C (pt) |
| FR (1) | FR2353674A1 (pt) |
| NO (1) | NO771468L (pt) |
| NZ (1) | NZ184228A (pt) |
| SE (1) | SE415492B (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2475084A1 (fr) * | 1979-11-23 | 1981-08-07 | Weyerhaeuser Co | Delignification par l'ozone a faible consistance |
| JPS5679797A (en) * | 1979-11-30 | 1981-06-30 | Weyerhaeuser Co | Bleaching of cellulose fiber |
| FR2620744A1 (fr) * | 1987-09-17 | 1989-03-24 | Degremont | Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede |
| ES2041828T3 (es) * | 1988-01-25 | 1993-12-01 | Acetocell Gmbh & Co. Kg | Procedimiento para el tratamiento de masa de celulosa conteniendo lignina, con ozono. |
| FI89516B (fi) * | 1989-05-10 | 1993-06-30 | Ahlstroem Oy | Foerfarande foer blekning av cellulosamassa med otson |
| AU636173B2 (en) * | 1989-10-30 | 1993-04-22 | Lenzing Aktiengesellschaft | Method for the chlorine-free bleaching of pulps |
| KR920703922A (ko) * | 1990-05-17 | 1992-12-18 | 원본미기재 | 환경오염 개선된 리그노셀룰로오스 물질 표백방법 |
-
1977
- 1977-03-04 CA CA273,237A patent/CA1090510A/en not_active Expired
- 1977-04-27 NO NO771468A patent/NO771468L/no unknown
- 1977-04-28 AU AU24651/77A patent/AU509882B2/en not_active Expired
- 1977-05-11 FI FI771500A patent/FI62362C/fi not_active IP Right Cessation
- 1977-05-17 JP JP5701077A patent/JPS52148204A/ja active Pending
- 1977-05-20 BR BR3256/77A patent/BR7703256A/pt unknown
- 1977-05-27 NZ NZ184228A patent/NZ184228A/xx unknown
- 1977-06-01 SE SE7706371A patent/SE415492B/xx unknown
- 1977-06-02 FR FR7716890A patent/FR2353674A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| AU509882B2 (en) | 1980-05-29 |
| BR7703256A (pt) | 1978-01-31 |
| SE415492B (sv) | 1980-10-06 |
| JPS52148204A (en) | 1977-12-09 |
| FI771500A (pt) | 1977-12-03 |
| SE7706371L (sv) | 1977-12-03 |
| FI62362C (fi) | 1982-12-10 |
| CA1090510A (en) | 1980-12-02 |
| NZ184228A (en) | 1980-04-28 |
| FI62362B (fi) | 1982-08-31 |
| FR2353674A1 (fr) | 1977-12-30 |
| AU2465177A (en) | 1978-11-02 |
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