FI68680C - Foerfarande foer hartshaltsminskning vid framstaellning av cellulosamassor ur lignocellulosamaterial - Google Patents
Foerfarande foer hartshaltsminskning vid framstaellning av cellulosamassor ur lignocellulosamaterial Download PDFInfo
- Publication number
- FI68680C FI68680C FI802742A FI802742A FI68680C FI 68680 C FI68680 C FI 68680C FI 802742 A FI802742 A FI 802742A FI 802742 A FI802742 A FI 802742A FI 68680 C FI68680 C FI 68680C
- Authority
- FI
- Finland
- Prior art keywords
- pulp
- alkali
- cellulose pulp
- resin
- added
- Prior art date
Links
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 60
- 239000011347 resin Substances 0.000 claims description 60
- 229920005989 resin Polymers 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 51
- 239000003513 alkali Substances 0.000 claims description 43
- 238000011282 treatment Methods 0.000 claims description 30
- 230000008569 process Effects 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 21
- 238000004061 bleaching Methods 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 12
- 238000004537 pulping Methods 0.000 claims description 12
- 238000005406 washing Methods 0.000 claims description 11
- 239000000835 fiber Substances 0.000 claims description 7
- 239000012978 lignocellulosic material Substances 0.000 claims description 7
- 239000004094 surface-active agent Substances 0.000 claims description 7
- 239000008139 complexing agent Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims 7
- 239000001913 cellulose Substances 0.000 claims 7
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 238000002474 experimental method Methods 0.000 description 19
- 239000002023 wood Substances 0.000 description 16
- 239000000126 substance Substances 0.000 description 15
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 14
- 238000000227 grinding Methods 0.000 description 13
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 10
- 230000004048 modification Effects 0.000 description 9
- 238000012986 modification Methods 0.000 description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 9
- 229910021653 sulphate ion Inorganic materials 0.000 description 9
- 241000196324 Embryophyta Species 0.000 description 8
- 235000018185 Betula X alpestris Nutrition 0.000 description 7
- 235000018212 Betula X uliginosa Nutrition 0.000 description 7
- 239000004155 Chlorine dioxide Substances 0.000 description 7
- 235000019398 chlorine dioxide Nutrition 0.000 description 7
- 230000014759 maintenance of location Effects 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- 238000007493 shaping process Methods 0.000 description 6
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 229910001882 dioxygen Inorganic materials 0.000 description 5
- 230000008719 thickening Effects 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 241000218657 Picea Species 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- 229920005610 lignin Polymers 0.000 description 4
- 238000000691 measurement method Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 241001415849 Strigiformes Species 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 239000011734 sodium Substances 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- 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 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910001902 chlorine oxide Inorganic materials 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011121 hardwood Substances 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000013055 pulp slurry Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 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
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000007430 reference method Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000003784 tall oil 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 And Physical Treatments For Wood And The Like (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7907557A SE418628B (sv) | 1979-09-12 | 1979-09-12 | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial |
| SE7907557 | 1979-09-12 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI802742A7 FI802742A7 (fi) | 1981-03-13 |
| FI68680B FI68680B (fi) | 1985-06-28 |
| FI68680C true FI68680C (fi) | 1985-10-10 |
Family
ID=20338805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI802742A FI68680C (fi) | 1979-09-12 | 1980-09-01 | Foerfarande foer hartshaltsminskning vid framstaellning av cellulosamassor ur lignocellulosamaterial |
Country Status (11)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9139955B2 (en) | 2010-07-13 | 2015-09-22 | Olli Joutsimo | Method of processing chemical pulp |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4444621A (en) * | 1980-11-21 | 1984-04-24 | Mo Och Domsjo Aktiebolag | Process and apparatus for the deresination and brightness improvement of cellulose pulp |
| SE8405128L (sv) * | 1984-10-15 | 1986-04-16 | Kamyr Ab | Behandling av hogutbytesmassa |
| SE502321C2 (sv) * | 1994-03-04 | 1995-10-02 | Kvaerner Pulping Tech | Förfarande vid ozonblekning av sulfitmassa |
| US5728265A (en) * | 1995-06-12 | 1998-03-17 | Henkel Corporation | Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE84946C (enrdf_load_stackoverflow) * | ||||
| DE363666C (de) * | 1918-01-23 | 1922-11-11 | Carl G Schwalbe Dr | Verfahren zur Entfernung von Harz, Fett, Wachs u. dgl. aus Pflanzenstoffen, insbesondere aus Holz und Holzzellstoffen |
| US2000562A (en) * | 1933-07-06 | 1935-05-07 | Patentaktiebolaget Grondal Ram | Process of removing resin from sulphite cellulose |
| US2224159A (en) * | 1937-09-27 | 1940-12-10 | Rayonier Inc | Process for purifying wood pulp |
-
1979
- 1979-09-12 SE SE7907557A patent/SE418628B/sv not_active IP Right Cessation
-
1980
- 1980-08-26 JP JP11824580A patent/JPS5643496A/ja active Granted
- 1980-08-29 BR BR8005524A patent/BR8005524A/pt not_active IP Right Cessation
- 1980-09-01 FI FI802742A patent/FI68680C/fi not_active IP Right Cessation
- 1980-09-05 CH CH6700/80A patent/CH651083A5/de not_active IP Right Cessation
- 1980-09-09 NO NO802658A patent/NO155498C/no unknown
- 1980-09-10 AU AU62195/80A patent/AU524841B2/en not_active Expired
- 1980-09-10 DE DE3034042A patent/DE3034042C2/de not_active Expired
- 1980-09-11 AT AT0457680A patent/AT374512B/de not_active IP Right Cessation
- 1980-09-12 CA CA000360196A patent/CA1157209A/en not_active Expired
- 1980-09-12 FR FR8019697A patent/FR2465026A1/fr active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9139955B2 (en) | 2010-07-13 | 2015-09-22 | Olli Joutsimo | Method of processing chemical pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0114357B2 (enrdf_load_stackoverflow) | 1989-03-10 |
| AU524841B2 (en) | 1982-10-07 |
| FI68680B (fi) | 1985-06-28 |
| SE418628B (sv) | 1981-06-15 |
| DE3034042A1 (de) | 1981-04-02 |
| AT374512B (de) | 1984-05-10 |
| SE7907557L (sv) | 1981-03-13 |
| AU6219580A (en) | 1981-03-19 |
| BR8005524A (pt) | 1981-03-17 |
| CH651083A5 (en) | 1985-08-30 |
| CA1157209A (en) | 1983-11-22 |
| NO155498C (no) | 1994-11-21 |
| JPS5643496A (en) | 1981-04-22 |
| FR2465026A1 (fr) | 1981-03-20 |
| ATA457680A (de) | 1983-09-15 |
| NO155498B (no) | 1986-12-29 |
| FR2465026B1 (enrdf_load_stackoverflow) | 1983-08-19 |
| NO802658L (no) | 1981-03-13 |
| DE3034042C2 (de) | 1985-08-22 |
| FI802742A7 (fi) | 1981-03-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MA | Patent expired |
Owner name: MO OCH DOMSJOE AKTIEBOLAG |