NO844062L - Mekanisk massebehandling - Google Patents
Mekanisk massebehandlingInfo
- Publication number
- NO844062L NO844062L NO844062A NO844062A NO844062L NO 844062 L NO844062 L NO 844062L NO 844062 A NO844062 A NO 844062A NO 844062 A NO844062 A NO 844062A NO 844062 L NO844062 L NO 844062L
- Authority
- NO
- Norway
- Prior art keywords
- finely divided
- refiner
- cellulosic material
- mechanical pulp
- stream
- Prior art date
Links
- 239000000463 material Substances 0.000 claims description 33
- 229920001131 Pulp (paper) Polymers 0.000 claims description 30
- 238000005406 washing Methods 0.000 claims description 24
- 239000000126 substance Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 18
- 238000004061 bleaching Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 13
- 238000007670 refining Methods 0.000 claims description 13
- 102100031260 Acyl-coenzyme A thioesterase THEM4 Human genes 0.000 claims description 12
- 101000638510 Homo sapiens Acyl-coenzyme A thioesterase THEM4 Proteins 0.000 claims description 12
- 238000005470 impregnation Methods 0.000 claims description 11
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 8
- 229920002678 cellulose Polymers 0.000 claims description 7
- 239000001913 cellulose Substances 0.000 claims description 7
- GRWZHXKQBITJKP-UHFFFAOYSA-N dithionous acid Chemical compound OS(=O)S(O)=O GRWZHXKQBITJKP-UHFFFAOYSA-N 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 239000004094 surface-active agent Substances 0.000 claims description 5
- 239000002657 fibrous material Substances 0.000 claims description 4
- 239000003349 gelling agent Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 150000002978 peroxides Chemical class 0.000 claims description 4
- 239000000975 dye Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims 3
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000010411 cooking Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 6
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000930 thermomechanical effect Effects 0.000 description 3
- 238000009835 boiling Methods 0.000 description 2
- 239000000356 contaminant Substances 0.000 description 2
- 150000004676 glycans Chemical class 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 229920001282 polysaccharide Polymers 0.000 description 2
- 239000005017 polysaccharide Substances 0.000 description 2
- 235000010265 sodium sulphite Nutrition 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- WYMDDFRYORANCC-UHFFFAOYSA-N 2-[[3-[bis(carboxymethyl)amino]-2-hydroxypropyl]-(carboxymethyl)amino]acetic acid Chemical compound OC(=O)CN(CC(O)=O)CC(O)CN(CC(O)=O)CC(O)=O WYMDDFRYORANCC-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/02—Pretreatment of the raw materials by chemical or physical means
- D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
- D21B1/00—Fibrous raw materials or their mechanical treatment
- D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
- D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Carbon And Carbon Compounds (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Inorganic Insulating Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US54384783A | 1983-10-20 | 1983-10-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO844062L true NO844062L (no) | 1985-04-22 |
Family
ID=24169776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO844062A NO844062L (no) | 1983-10-20 | 1984-10-10 | Mekanisk massebehandling |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0138484A3 (fr) |
| JP (1) | JPS60146090A (fr) |
| BR (1) | BR8405320A (fr) |
| CA (1) | CA1240456A (fr) |
| FI (1) | FI844071L (fr) |
| NO (1) | NO844062L (fr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE454186C (sv) * | 1985-03-13 | 1989-06-27 | Eka Nobel Ab | Saett foer framstaellning av kemimekanisk massa |
| SE8501246L (sv) * | 1985-03-13 | 1986-09-14 | Eka Ab | Sett att tillverka blekt, kemimekanisk och halvkemisk fibermassa med anvendning av enstegsimpregnering |
| SE458690B (sv) * | 1986-11-06 | 1989-04-24 | Sunds Defibrator | Saett att framstaella mekanisk massa fraan lignocellulosahaltigt material i styckeform med en laengd i fiberriktningen av minst 200 mm |
| US5853534A (en) * | 1992-12-30 | 1998-12-29 | Sunds Defibrator Industries Ab | Method of producing pulp with high yield using a two-stage refining system operating at different temperatures |
| FI113552B (fi) | 1999-12-09 | 2004-05-14 | Upm Kymmene Corp | Menetelmä painopaperin valmistamiseksi |
| FI113670B (fi) | 1999-12-09 | 2004-05-31 | Upm Kymmene Corp | Menetelmä painopaperin valmistamiseksi |
| FI126694B (fi) * | 2005-12-02 | 2017-04-13 | Metsä Board Oyj | Kemimekaaninen massa ja menetelmä sen valmistamiseksi |
| US8262851B2 (en) | 2006-08-10 | 2012-09-11 | Andritz Inc. | Processes and systems for the pulping of lignocellulosic materials |
| WO2008076055A1 (fr) * | 2006-12-19 | 2008-06-26 | Akzo Nobel N.V. | Procédé de réduction en pâte |
| US20080308239A1 (en) | 2007-06-12 | 2008-12-18 | Hart Peter W | Fiber blend having high yield and enhanced pulp performance and method for making same |
| WO2008153565A1 (fr) * | 2007-06-12 | 2008-12-18 | Meadwestvaco Corporation | Mélange de fibres présentant un rendement élevé et des performances de pâte améliorées, et son procédé de fabrication |
| SE537483C2 (sv) * | 2012-03-23 | 2015-05-19 | Valmet Oy | Förfarande och anordning för rengöring av lignocellulosamaterial under impregnering |
| CN107503214A (zh) * | 2017-10-11 | 2017-12-22 | 山东恒安纸业有限公司 | 一种新型生活用纸备浆装置及工艺 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE536814A (fr) * | 1954-04-08 | |||
| US4116758A (en) * | 1976-05-14 | 1978-09-26 | Canadian International Paper Co. | Method of producing high yield chemimechanical pulps |
| US4145246A (en) * | 1976-07-19 | 1979-03-20 | Crown Zellerbach Corporation | Process for making high-strength, high-yield sulfite-modified thermomechanical pulp and a linerboard composition produced therefrom |
| US4229250A (en) * | 1979-02-28 | 1980-10-21 | Valmet Oy | Method of improving properties of mechanical paper pulp without chemical reaction therewith |
| FI810330L (fi) * | 1980-02-14 | 1981-08-15 | Beloit Corp | Termomekaniskt defibreringsfoerfarande |
-
1984
- 1984-09-11 CA CA000462872A patent/CA1240456A/fr not_active Expired
- 1984-09-28 EP EP84306656A patent/EP0138484A3/fr not_active Withdrawn
- 1984-10-10 NO NO844062A patent/NO844062L/no unknown
- 1984-10-16 FI FI844071A patent/FI844071L/fi not_active Application Discontinuation
- 1984-10-19 JP JP59220299A patent/JPS60146090A/ja active Pending
- 1984-10-19 BR BR8405320A patent/BR8405320A/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP0138484A2 (fr) | 1985-04-24 |
| FI844071A0 (fi) | 1984-10-16 |
| EP0138484A3 (fr) | 1986-07-02 |
| JPS60146090A (ja) | 1985-08-01 |
| BR8405320A (pt) | 1985-09-03 |
| CA1240456A (fr) | 1988-08-16 |
| FI844071L (fi) | 1985-04-21 |
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