SE418628B - Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial - Google Patents
Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterialInfo
- Publication number
- SE418628B SE418628B SE7907557A SE7907557A SE418628B SE 418628 B SE418628 B SE 418628B SE 7907557 A SE7907557 A SE 7907557A SE 7907557 A SE7907557 A SE 7907557A SE 418628 B SE418628 B SE 418628B
- Authority
- SE
- Sweden
- Prior art keywords
- pulp
- alkali
- concentration
- mass
- residence time
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 42
- 238000004519 manufacturing process Methods 0.000 title claims description 14
- 230000009467 reduction Effects 0.000 title claims description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical group [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 57
- 239000011347 resin Substances 0.000 claims description 49
- 229920005989 resin Polymers 0.000 claims description 49
- 239000003513 alkali Substances 0.000 claims description 43
- 238000011282 treatment Methods 0.000 claims description 28
- 238000012545 processing Methods 0.000 claims description 23
- 230000008569 process Effects 0.000 claims description 22
- 239000001913 cellulose Substances 0.000 claims description 16
- 229920002678 cellulose Polymers 0.000 claims description 16
- 238000004061 bleaching Methods 0.000 claims description 14
- 238000005406 washing Methods 0.000 claims description 12
- 239000000835 fiber Substances 0.000 claims description 8
- 239000004094 surface-active agent Substances 0.000 claims description 8
- 239000012978 lignocellulosic material Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000008139 complexing agent Substances 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- 238000002474 experimental method Methods 0.000 description 30
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 18
- 239000000126 substance Substances 0.000 description 14
- 239000002023 wood Substances 0.000 description 12
- 238000000227 grinding Methods 0.000 description 11
- 239000004155 Chlorine dioxide Substances 0.000 description 9
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 9
- 235000019398 chlorine dioxide Nutrition 0.000 description 9
- 238000004898 kneading Methods 0.000 description 9
- 229910021653 sulphate ion Inorganic materials 0.000 description 9
- 238000010008 shearing Methods 0.000 description 7
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 235000018185 Betula X alpestris Nutrition 0.000 description 6
- 235000018212 Betula X uliginosa Nutrition 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010411 cooking Methods 0.000 description 5
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 4
- 239000000460 chlorine Substances 0.000 description 4
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000029087 digestion Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 239000000080 wetting agent Substances 0.000 description 3
- 241000218657 Picea Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000007844 bleaching agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 229920005610 lignin Polymers 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000004460 silage Substances 0.000 description 2
- 229920002488 Hemicellulose Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 229910001902 chlorine oxide Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 239000002270 dispersing agent Substances 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
- 238000007667 floating Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000003784 tall oil Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material 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)
Priority Applications (11)
| 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 |
| JP11824580A JPS5643496A (en) | 1979-09-12 | 1980-08-26 | Reduction of resin content in producing cellulose pulp from lignocellulose material |
| BR8005524A BR8005524A (pt) | 1979-09-12 | 1980-08-29 | Processo e aparelho para reducao do teor de resina na preparacao de polpas de celulose |
| FI802742A FI68680C (fi) | 1979-09-12 | 1980-09-01 | Foerfarande foer hartshaltsminskning vid framstaellning av cellulosamassor ur lignocellulosamaterial |
| CH6700/80A CH651083A5 (en) | 1979-09-12 | 1980-09-05 | Process for reducing the resin content during the manufacture of cellulose paper pulps from lignocellulose materials |
| NO802658A NO155498C (no) | 1979-09-12 | 1980-09-09 | Fremgangsmåte for å redusere harpiksinnholdet ved fremstilling av blekede eller ublekede cellulosemasser fra lignocellulosemateriale. |
| DE3034042A DE3034042C2 (de) | 1979-09-12 | 1980-09-10 | Verfahren zur Reduzierung des Harzgehalts bei der Herstellung von Zellulosepulpe aus Lignozellulose-Material |
| AU62195/80A AU524841B2 (en) | 1979-09-12 | 1980-09-10 | Cellulose pulp resin content reduction |
| AT0457680A AT374512B (de) | 1979-09-12 | 1980-09-11 | Verfahren und vorrichtung zur verminderung des harzgehaltes bei der erzeugung von zellstoffen aus lignozellulosehaeltigen materialien |
| FR8019697A FR2465026A1 (fr) | 1979-09-12 | 1980-09-12 | Procede pour reduire la teneur en resine pendant la preparation de pates de cellulose provenant de matieres lignocellulosiques et appareil pour sa mise en oeuvre |
| CA000360196A CA1157209A (en) | 1979-09-12 | 1980-09-12 | Process and apparatus for the deresination of cellulose pulp |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7907557L SE7907557L (sv) | 1981-03-13 |
| SE418628B true SE418628B (sv) | 1981-06-15 |
Family
ID=20338805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7907557A SE418628B (sv) | 1979-09-12 | 1979-09-12 | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial |
Country Status (11)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922989A (en) * | 1984-10-15 | 1990-05-08 | Kamyr Ab | Treatment of mechanical pulp to remove resin |
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 |
| 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 |
| FI20105799A0 (fi) | 2010-07-13 | 2010-07-13 | Olli Joutsimo | Parantunut kemiallisen massan valmistusprosessi |
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 |
|---|---|---|---|---|
| US4922989A (en) * | 1984-10-15 | 1990-05-08 | Kamyr Ab | Treatment of mechanical pulp to remove resin |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0114357B2 (enrdf_load_stackoverflow) | 1989-03-10 |
| AU524841B2 (en) | 1982-10-07 |
| FI68680B (fi) | 1985-06-28 |
| FI68680C (fi) | 1985-10-10 |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9777429B2 (en) | Continuous process for production of cellulose pulp from grass-like plant feedstock | |
| JPS6231110B2 (enrdf_load_stackoverflow) | ||
| NO147037B (no) | Fremgangsmaate ved fremstilling av cellulosemasse | |
| US4116758A (en) | Method of producing high yield chemimechanical pulps | |
| NO151047B (no) | Fremgangsmaate ved peroxydbleking av hoeyutbyttemasse | |
| WO1979000861A1 (en) | A method of refining cellulose pulps | |
| CA1164704A (en) | Method for improving the washing of cellulose pulps | |
| FI61211B (fi) | Foerfarande foer framstaellning av en hoegutbytesmassa laemplig foer absorptionsprodukter | |
| US4689117A (en) | Thermomechanical digestion process for enhancing the brightness of cellulose pulp using bleachants | |
| US2528350A (en) | Two-step digestion of hardwoods | |
| SE418628B (sv) | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial | |
| DE69520440T2 (de) | Verfahren und vorrichtung zum kontinuierlichen herstellen von zellstoffbrei | |
| EP0508064A1 (de) | Verfahren zur Delignifizierung von cellulosehaltigen Rohstoffen | |
| US3073737A (en) | Wood pulp and process for producing same | |
| FI73016C (fi) | Saett vid tillverkning av mekanisk cellulosamassa. | |
| KR100652975B1 (ko) | 옥수숫대 반화학 기계펄프의 제조방법 | |
| SE424884B (sv) | Forfarande for hartshaltsminskning vid framstellning av cellulosamassor ur lignocellulosamaterial | |
| RU2042002C1 (ru) | Способ получения целлюлозы | |
| CA1057007A (en) | Impregnation of wood particles | |
| CA1051618A (en) | Method of producing high yield chemimechanical pulps | |
| SU1587095A1 (ru) | Способ получени беленой целлюлозы дл химической переработки | |
| EP0503304A1 (de) | Verfahren zur Delignifizierung von cellulosehaltigen Rohstoffen | |
| AT377545B (de) | Verfahren zur verminderung des harzgehaltes bei der erzeugung von faserstoffen aus lignozellulose-haeltigen materialien | |
| RU2500688C2 (ru) | Способ удаления экстрактивных веществ при производстве целлюлозы, целлюлоза, полученная с использованием этого способа, и ее применение | |
| Rue | Fifty Years Progress in the Pulp Industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NAL | Patent in force |
Ref document number: 7907557-8 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 7907557-8 Format of ref document f/p: F |
|
| NUG | Patent has lapsed |
Ref document number: 7907557-8 Format of ref document f/p: F |