CA1174013A - Method at mechanical cellulose pulp manufacture - Google Patents
Method at mechanical cellulose pulp manufactureInfo
- Publication number
- CA1174013A CA1174013A CA000375146A CA375146A CA1174013A CA 1174013 A CA1174013 A CA 1174013A CA 000375146 A CA000375146 A CA 000375146A CA 375146 A CA375146 A CA 375146A CA 1174013 A CA1174013 A CA 1174013A
- Authority
- CA
- Canada
- Prior art keywords
- bleaching
- pulp
- stage
- washing
- resin
- 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
- 238000000034 method Methods 0.000 title claims abstract description 40
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 229920002678 cellulose Polymers 0.000 title claims abstract description 5
- 239000001913 cellulose Substances 0.000 title claims abstract description 5
- 238000004061 bleaching Methods 0.000 claims abstract description 120
- 238000005406 washing Methods 0.000 claims abstract description 68
- 239000011347 resin Substances 0.000 claims abstract description 59
- 229920005989 resin Polymers 0.000 claims abstract description 59
- 230000000694 effects Effects 0.000 claims abstract description 10
- 150000002978 peroxides Chemical class 0.000 claims description 51
- 239000000126 substance Substances 0.000 claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000010790 dilution Methods 0.000 claims description 10
- 239000012895 dilution Substances 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 239000002023 wood Substances 0.000 claims description 8
- 238000007865 diluting Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000000930 thermomechanical effect Effects 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 4
- 230000002311 subsequent effect Effects 0.000 claims 1
- 206010016256 fatigue Diseases 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 24
- 229920001131 Pulp (paper) Polymers 0.000 description 20
- 239000000243 solution Substances 0.000 description 19
- 238000002474 experimental method Methods 0.000 description 16
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 13
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 description 12
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 description 12
- 241000196324 Embryophyta Species 0.000 description 11
- 239000007788 liquid Substances 0.000 description 9
- 238000007670 refining Methods 0.000 description 9
- 239000013505 freshwater Substances 0.000 description 6
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 6
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 238000009533 lab test Methods 0.000 description 4
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 3
- 241000218657 Picea Species 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 235000010265 sodium sulphite Nutrition 0.000 description 3
- 238000004380 ashing Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000029087 digestion Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 235000019341 magnesium sulphate Nutrition 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005185 salting out Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 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
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 239000003643 water by type 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
- 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
- D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8002728A SE445051B (sv) | 1980-04-10 | 1980-04-10 | Sett vid tillverkning av mekanisk, i huvudsak hartsfri cellulosamassa |
| SE8002728-7 | 1980-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1174013A true CA1174013A (en) | 1984-09-11 |
Family
ID=20340719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000375146A Expired CA1174013A (en) | 1980-04-10 | 1981-04-09 | Method at mechanical cellulose pulp manufacture |
Country Status (10)
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2567930B1 (fr) * | 1984-07-17 | 1986-08-29 | Centre Tech Ind Papier | Procede et installation pour le recyclage de vieux papiers imprimes |
| SE8501246L (sv) * | 1985-03-13 | 1986-09-14 | Eka Ab | Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering |
| CA1294396C (en) * | 1986-05-30 | 1992-01-21 | Richard Berry | Process for decreasing the charge of chemical required in a bleaching extraction stage |
| FI115978B (fi) * | 2000-11-16 | 2005-08-31 | Ciba Sc Holding Ag | Menetelmä ei-kuitupitoisten ainesten ottamiseksi talteen puumateriaalista |
| CN105019286B (zh) * | 2015-07-29 | 2017-01-25 | 华南理工大学 | 棉短绒高浓过氧化氢漂白制备精制棉的装置及方法 |
| CN105064110B (zh) * | 2015-07-29 | 2017-04-12 | 华南理工大学 | 一种棉短绒制浆装置及其制浆方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE420329C (sv) * | 1978-02-16 | 1984-10-15 | Mo Och Domsjoe Ab | Forfarande for framstellning av slipmassa vid overtryck |
| CA1151363A (en) * | 1979-04-17 | 1983-08-09 | Henri Lemoyne | Process for the delignification of unbleached chemical pulp |
| SE443383C (sv) * | 1981-01-14 | 1987-11-16 | Mo Och Domsjoe Ab | Forfarande for tvettning av cellulosamassa |
| FR2522030A1 (fr) * | 1982-02-19 | 1983-08-26 | Scherb Metenett Papeteries | Procede de blanchiment selectif de pate a papier et papier obtenu par mise en oeuvre de ce procede |
-
1980
- 1980-04-10 SE SE8002728A patent/SE445051B/xx not_active IP Right Cessation
-
1981
- 1981-04-01 AU AU69012/81A patent/AU6901281A/en not_active Abandoned
- 1981-04-06 FR FR8106834A patent/FR2480321A1/fr active Granted
- 1981-04-07 IT IT8148224A patent/IT1209859B/it active
- 1981-04-08 NL NLAANVRAGE8101748,A patent/NL187865C/xx not_active IP Right Cessation
- 1981-04-09 FI FI811096A patent/FI73016C/fi not_active IP Right Cessation
- 1981-04-09 DE DE19813114427 patent/DE3114427A1/de active Granted
- 1981-04-09 JP JP5377081A patent/JPS56159384A/ja active Granted
- 1981-04-09 CA CA000375146A patent/CA1174013A/en not_active Expired
- 1981-04-09 NO NO811225A patent/NO159107C/no unknown
-
1984
- 1984-01-09 AU AU23169/84A patent/AU568112B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU568112B2 (en) | 1987-12-17 |
| NO811225L (no) | 1981-10-12 |
| IT1209859B (it) | 1989-08-30 |
| SE445051B (sv) | 1986-05-26 |
| FR2480321B1 (enrdf_load_stackoverflow) | 1984-09-14 |
| AU2316984A (en) | 1984-05-10 |
| IT8148224A0 (it) | 1981-04-07 |
| FI811096L (fi) | 1981-10-11 |
| NO159107C (no) | 1988-11-30 |
| NO159107B (no) | 1988-08-22 |
| NL8101748A (nl) | 1981-11-02 |
| SE8002728L (sv) | 1981-10-11 |
| AU6901281A (en) | 1981-10-29 |
| NL187865C (nl) | 1992-02-03 |
| FI73016B (fi) | 1987-04-30 |
| JPH0219236B2 (enrdf_load_stackoverflow) | 1990-05-01 |
| DE3114427A1 (de) | 1982-01-14 |
| FR2480321A1 (fr) | 1981-10-16 |
| DE3114427C2 (enrdf_load_stackoverflow) | 1987-12-17 |
| FI73016C (fi) | 1987-08-10 |
| NL187865B (nl) | 1991-09-02 |
| JPS56159384A (en) | 1981-12-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |