CA1177607A - Traitement chimique de la pate mecanique - Google Patents
Traitement chimique de la pate mecaniqueInfo
- Publication number
- CA1177607A CA1177607A CA000404442A CA404442A CA1177607A CA 1177607 A CA1177607 A CA 1177607A CA 000404442 A CA000404442 A CA 000404442A CA 404442 A CA404442 A CA 404442A CA 1177607 A CA1177607 A CA 1177607A
- Authority
- CA
- Canada
- Prior art keywords
- reject fraction
- range
- fraction
- reject
- pulp
- 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.)
- Expired
Links
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 63
- 238000011282 treatment Methods 0.000 title description 40
- 239000000126 substance Substances 0.000 title description 7
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims abstract description 68
- 238000000034 method Methods 0.000 claims abstract description 38
- 235000010265 sodium sulphite Nutrition 0.000 claims abstract description 34
- 238000010411 cooking Methods 0.000 claims abstract description 21
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 21
- 239000000243 solution Substances 0.000 claims abstract description 13
- 239000007864 aqueous solution Substances 0.000 claims abstract description 10
- 210000000988 bone and bone Anatomy 0.000 claims abstract description 10
- 239000002657 fibrous material Substances 0.000 claims abstract description 4
- 238000007670 refining Methods 0.000 claims description 34
- 239000000203 mixture Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 47
- 239000000835 fiber Substances 0.000 description 10
- 239000002023 wood Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000006277 sulfonation reaction Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 238000004537 pulping Methods 0.000 description 4
- DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000727 fraction Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 235000010267 sodium hydrogen sulphite Nutrition 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- 101001052394 Homo sapiens [F-actin]-monooxygenase MICAL1 Proteins 0.000 description 1
- 101710112672 Probable tape measure protein Proteins 0.000 description 1
- 101710204224 Tape measure protein Proteins 0.000 description 1
- 102100024306 [F-actin]-monooxygenase MICAL1 Human genes 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000011122 softwood Substances 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
- D21C3/12—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites sodium bisulfite
Landscapes
- Paper (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US27229181A | 1981-06-10 | 1981-06-10 | |
| US272,291 | 1981-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1177607A true CA1177607A (fr) | 1984-11-13 |
Family
ID=23039193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000404442A Expired CA1177607A (fr) | 1981-06-10 | 1982-06-03 | Traitement chimique de la pate mecanique |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1177607A (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708771A (en) * | 1984-12-31 | 1987-11-24 | Bear Island Paper Company | Two stage process for sulfonating mechanical pulp fibers |
| US5503710A (en) * | 1995-05-31 | 1996-04-02 | Macmillan Bloedel Limited | Duplex linerboard formed from old corrugated containers |
-
1982
- 1982-06-03 CA CA000404442A patent/CA1177607A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4708771A (en) * | 1984-12-31 | 1987-11-24 | Bear Island Paper Company | Two stage process for sulfonating mechanical pulp fibers |
| US5503710A (en) * | 1995-05-31 | 1996-04-02 | Macmillan Bloedel Limited | Duplex linerboard formed from old corrugated containers |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4502918A (en) | Two-stage chemical treatment of mechanical wood pulp with sodium sulfite | |
| US4431479A (en) | Process for improving and retaining pulp properties | |
| DE60316712T2 (de) | Verfahren zur herstellung von holzstoff und der so hergestellte holzstoff | |
| US4776926A (en) | Process for producing high yield bleached cellulose pulp | |
| NO150399B (no) | Katalysator for homo- eller kopolymerisering av etylen, samt fremgangsmaate for fremstilling av katalysatoren | |
| US6066233A (en) | Method of improving pulp freeness using cellulase and pectinase enzymes | |
| US6267841B1 (en) | Low energy thermomechanical pulping process using an enzyme treatment between refining zones | |
| WO1997022749A1 (fr) | Procede de traitement de pate de raffineur | |
| US4116758A (en) | Method of producing high yield chemimechanical pulps | |
| WO2005028744A1 (fr) | Activation chimique et raffinage de pate kraft de pins du sud | |
| US4106979A (en) | Preparation of paper pulps from dicotyledonous plants | |
| CA1123554A (fr) | Methode de fabrication de pate a papier par voie chimicomecanique a haut rendement | |
| US2169473A (en) | Method of producing cellulose pulp | |
| CA1099456A (fr) | Methode permettant de secher la pate mecanique et, simultanement, d'en ameliorer la resistance et la couleur | |
| US3919041A (en) | Multi-stage chlorine dioxide delignification of wood pulp | |
| Heijnesson et al. | Removal of lignin-rich surface material from unbleached kraft fibres | |
| US7306698B2 (en) | Method for producing pulp | |
| CA1177607A (fr) | Traitement chimique de la pate mecanique | |
| US3192102A (en) | Pulping process | |
| US2697384A (en) | Process for removing dirt from wood pulp | |
| US3013932A (en) | Printing paper and process of making the same | |
| US3013931A (en) | Printing paper and process of making the same | |
| JP2004225201A (ja) | ケミサーモメカニカルパルプおよびその製造方法と用途 | |
| USRE28777E (en) | Refining of vegetable matter and delignification of the refined matter with chlorine dioxide | |
| EP0030778A1 (fr) | Procédé de préparation d'une pâte raffinée |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |