DE1546242A1 - Verfahren zum Bleichen von Papierbrei - Google Patents
Verfahren zum Bleichen von PapierbreiInfo
- Publication number
- DE1546242A1 DE1546242A1 DE19651546242 DE1546242A DE1546242A1 DE 1546242 A1 DE1546242 A1 DE 1546242A1 DE 19651546242 DE19651546242 DE 19651546242 DE 1546242 A DE1546242 A DE 1546242A DE 1546242 A1 DE1546242 A1 DE 1546242A1
- Authority
- DE
- Germany
- Prior art keywords
- treatment
- chlorine dioxide
- pulp
- lime
- milk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 27
- 238000004061 bleaching Methods 0.000 title claims description 12
- 229920001131 Pulp (paper) Polymers 0.000 title claims description 4
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 44
- 238000011282 treatment Methods 0.000 claims description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 34
- 239000004155 Chlorine dioxide Substances 0.000 claims description 22
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 22
- 239000000920 calcium hydroxide Substances 0.000 claims description 13
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 13
- 238000005660 chlorination reaction Methods 0.000 claims description 13
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 11
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 4
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 4
- 239000002655 kraft paper Substances 0.000 claims description 4
- 239000004571 lime Substances 0.000 claims description 4
- 239000008267 milk Substances 0.000 claims description 4
- 210000004080 milk Anatomy 0.000 claims description 4
- 235000013336 milk Nutrition 0.000 claims description 4
- 235000021395 porridge Nutrition 0.000 claims description 4
- YUHVVTLNLCJEOB-UHFFFAOYSA-N [Cl].O=Cl=O Chemical compound [Cl].O=Cl=O YUHVVTLNLCJEOB-UHFFFAOYSA-N 0.000 claims description 2
- 239000002002 slurry Substances 0.000 description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 7
- 239000000460 chlorine Substances 0.000 description 7
- 229910052801 chlorine Inorganic materials 0.000 description 6
- 230000008719 thickening Effects 0.000 description 3
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR963419A FR1393492A (fr) | 1964-02-11 | 1964-02-11 | Perfectionnement au blanchiment des pâtes à papier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1546242A1 true DE1546242A1 (de) | 1970-04-23 |
Family
ID=8822925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19651546242 Pending DE1546242A1 (de) | 1964-02-11 | 1965-02-10 | Verfahren zum Bleichen von Papierbrei |
Country Status (8)
| Country | Link |
|---|---|
| BE (1) | BE659474A (enrdf_load_stackoverflow) |
| DE (1) | DE1546242A1 (enrdf_load_stackoverflow) |
| FI (1) | FI45356C (enrdf_load_stackoverflow) |
| FR (1) | FR1393492A (enrdf_load_stackoverflow) |
| GB (1) | GB1091124A (enrdf_load_stackoverflow) |
| NL (1) | NL6501698A (enrdf_load_stackoverflow) |
| NO (1) | NO117954B (enrdf_load_stackoverflow) |
| SE (1) | SE312971B (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1181139B (it) * | 1984-11-09 | 1987-09-23 | Sicem Saga Spa | Apparecchiatura e procedimento per la produzione di porte di legno semimeccaniche grezze o sbiancate con ciclo continuo di impregnazione |
| DE10320618A1 (de) * | 2003-05-08 | 2004-11-18 | Papierfabrik Albbruck Gmbh & Co. Kg | Verfahren zum Bleichen von Faserstoffen |
-
1964
- 1964-02-11 FR FR963419A patent/FR1393492A/fr not_active Expired
-
1965
- 1965-02-03 NO NO15662265A patent/NO117954B/no unknown
- 1965-02-09 BE BE659474D patent/BE659474A/xx unknown
- 1965-02-10 SE SE173765A patent/SE312971B/xx unknown
- 1965-02-10 DE DE19651546242 patent/DE1546242A1/de active Pending
- 1965-02-11 NL NL6501698A patent/NL6501698A/xx unknown
- 1965-02-11 FI FI33065A patent/FI45356C/fi active
- 1965-02-11 GB GB601565A patent/GB1091124A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL6501698A (enrdf_load_stackoverflow) | 1965-08-12 |
| FI45356B (enrdf_load_stackoverflow) | 1972-01-31 |
| NO117954B (enrdf_load_stackoverflow) | 1969-10-13 |
| SE312971B (enrdf_load_stackoverflow) | 1969-07-28 |
| GB1091124A (en) | 1967-11-15 |
| FI45356C (fi) | 1972-05-10 |
| BE659474A (enrdf_load_stackoverflow) | 1965-08-09 |
| FR1393492A (fr) | 1965-03-26 |
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