SE442880B - Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma steg - Google Patents
Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma stegInfo
- Publication number
- SE442880B SE442880B SE8008336A SE8008336A SE442880B SE 442880 B SE442880 B SE 442880B SE 8008336 A SE8008336 A SE 8008336A SE 8008336 A SE8008336 A SE 8008336A SE 442880 B SE442880 B SE 442880B
- Authority
- SE
- Sweden
- Prior art keywords
- chlorine
- bleaching
- pulp
- chlorine dioxide
- delignification
- Prior art date
Links
- 239000000460 chlorine Substances 0.000 title claims abstract description 118
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 32
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 title 1
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title 1
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims abstract description 126
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 117
- 238000004061 bleaching Methods 0.000 claims abstract description 92
- 239000004155 Chlorine dioxide Substances 0.000 claims abstract description 63
- 235000019398 chlorine dioxide Nutrition 0.000 claims abstract description 63
- 229920002678 cellulose Polymers 0.000 claims abstract description 34
- 239000001913 cellulose Substances 0.000 claims abstract description 34
- 239000000725 suspension Substances 0.000 claims description 49
- 239000000126 substance Substances 0.000 claims description 20
- 229910001902 chlorine oxide Inorganic materials 0.000 claims description 4
- 238000007792 addition Methods 0.000 description 18
- 238000002474 experimental method Methods 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000654 additive Substances 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 239000007844 bleaching agent Substances 0.000 description 8
- 230000000996 additive effect Effects 0.000 description 7
- 239000007864 aqueous solution Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 6
- 229910021653 sulphate ion Inorganic materials 0.000 description 6
- 235000018185 Betula X alpestris Nutrition 0.000 description 5
- 235000018212 Betula X uliginosa Nutrition 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 150000001720 carbohydrates Chemical group 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 101150039167 Bex3 gene Proteins 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 150000008280 chlorinated hydrocarbons Chemical class 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- MAYPHUUCLRDEAZ-UHFFFAOYSA-N chlorine peroxide Chemical compound ClOOCl MAYPHUUCLRDEAZ-UHFFFAOYSA-N 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 150000004045 organic chlorine compounds Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- XXQBEVHPUKOQEO-UHFFFAOYSA-N potassium peroxide Inorganic materials [K+].[K+].[O-][O-] XXQBEVHPUKOQEO-UHFFFAOYSA-N 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 231100000167 toxic agent Toxicity 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8008336A SE442880B (sv) | 1980-11-27 | 1980-11-27 | Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma steg |
| FI813732A FI73019C (fi) | 1980-11-27 | 1981-11-23 | Foerfarande foer delignifiering/blekning av cellulosamassa. |
| CA000390873A CA1149111A (en) | 1980-11-27 | 1981-11-25 | Process for delignifying and/or bleaching cellulose pulp |
| JP56190472A JPS57121690A (en) | 1980-11-27 | 1981-11-26 | Delignifying and/or bleaching of cellulose pulp |
| NO814024A NO157223C (no) | 1980-11-27 | 1981-11-26 | Fremgangsmaate ved delignifisering/bleking av cellulosemasse. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8008336A SE442880B (sv) | 1980-11-27 | 1980-11-27 | Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma steg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8008336L SE8008336L (sv) | 1982-05-28 |
| SE442880B true SE442880B (sv) | 1986-02-03 |
Family
ID=20342344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8008336A SE442880B (sv) | 1980-11-27 | 1980-11-27 | Forfarande for delignifiering/blekning av cellulosamassa med klordioxid/klor i samma steg |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS57121690A (fi) |
| CA (1) | CA1149111A (fi) |
| FI (1) | FI73019C (fi) |
| NO (1) | NO157223C (fi) |
| SE (1) | SE442880B (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2033077C (en) * | 1989-05-15 | 1996-08-27 | Ronnie G. Hise | Method for reducing chlorinated compounds produced during chlorination stage bleaching of pulp |
| US5268075A (en) * | 1989-10-19 | 1993-12-07 | North Carolina State University | High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process |
-
1980
- 1980-11-27 SE SE8008336A patent/SE442880B/sv not_active IP Right Cessation
-
1981
- 1981-11-23 FI FI813732A patent/FI73019C/fi not_active IP Right Cessation
- 1981-11-25 CA CA000390873A patent/CA1149111A/en not_active Expired
- 1981-11-26 JP JP56190472A patent/JPS57121690A/ja active Granted
- 1981-11-26 NO NO814024A patent/NO157223C/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FI73019B (fi) | 1987-04-30 |
| NO157223B (no) | 1987-11-02 |
| JPS57121690A (en) | 1982-07-29 |
| CA1149111A (en) | 1983-07-05 |
| SE8008336L (sv) | 1982-05-28 |
| NO814024L (no) | 1982-05-28 |
| JPS6262199B2 (fi) | 1987-12-25 |
| FI73019C (fi) | 1987-08-10 |
| NO157223C (no) | 1988-02-10 |
| FI813732L (fi) | 1982-05-28 |
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