SE8902722L - Metod foer styrning av en alkalisk cellulosakokning - Google Patents
Metod foer styrning av en alkalisk cellulosakokningInfo
- Publication number
- SE8902722L SE8902722L SE8902722A SE8902722A SE8902722L SE 8902722 L SE8902722 L SE 8902722L SE 8902722 A SE8902722 A SE 8902722A SE 8902722 A SE8902722 A SE 8902722A SE 8902722 L SE8902722 L SE 8902722L
- Authority
- SE
- Sweden
- Prior art keywords
- digestion
- alkalic
- cellulos
- controling
- cooking
- Prior art date
Links
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
- D21C3/22—Other features of pulping processes
- D21C3/228—Automation of the pulping processes
Landscapes
- Paper (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI883818A FI80731C (fi) | 1988-08-17 | 1988-08-17 | Foerfarande foer styrning av alkalisk cellulosakok. |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8902722D0 SE8902722D0 (sv) | 1989-08-11 |
SE8902722L true SE8902722L (sv) | 1990-02-18 |
Family
ID=8526931
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8902722A SE8902722L (sv) | 1988-08-17 | 1989-08-11 | Metod foer styrning av en alkalisk cellulosakokning |
Country Status (4)
Country | Link |
---|---|
JP (1) | JPH0299679A ( ) |
DE (1) | DE3927183A1 ( ) |
FI (1) | FI80731C ( ) |
SE (1) | SE8902722L ( ) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI893830A (fi) * | 1989-08-14 | 1991-02-15 | Kajaani Elektroniikka Oy | Foerfarande foer styrning av syrgas -alkali blekning. |
EP0445321B1 (de) * | 1990-03-05 | 1994-06-01 | Siemens Aktiengesellschaft | Verfahren zur Herstellung von Zellstoff in einem kontinuierlichen Kocher |
-
1988
- 1988-08-17 FI FI883818A patent/FI80731C/fi not_active IP Right Cessation
-
1989
- 1989-08-11 SE SE8902722A patent/SE8902722L/ not_active Application Discontinuation
- 1989-08-16 JP JP21024589A patent/JPH0299679A/ja active Pending
- 1989-08-17 DE DE19893927183 patent/DE3927183A1/de not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
DE3927183A1 (de) | 1990-02-22 |
JPH0299679A (ja) | 1990-04-11 |
FI80731C (fi) | 1990-07-10 |
FI80731B (fi) | 1990-03-30 |
FI883818A0 (fi) | 1988-08-17 |
SE8902722D0 (sv) | 1989-08-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0415149A3 (en) | Process for bleaching and delignification of lignocellulosic materials | |
FR2457339B1 ( ) | ||
SE8504236D0 (sv) | Forbettrad oxidativ extraktion | |
ATE252175T1 (de) | Verfahren zur herstellung lignocellulosehaltiger pulpe aus nicht holzartigem material | |
ATE107376T1 (de) | Zellstoffkochen mit hoher sulfidität, durch sulfonierung von gedämpften holzspänen mit schwarzlauge. | |
ATE48290T1 (de) | Verfahren zur delignifizierung und bleiche von zellstoffen. | |
SE8904313D0 (sv) | Vaeteperoxid-blekningsprocess | |
NO803144L (no) | Fremgangsmaate til gjenvinningsbehandling av avfallspapir | |
ATE130388T1 (de) | Verfahren zum bleichen von mechanischem holzstoff. | |
SE8304973D0 (sv) | Forfarande for framstellning av kokvetska for kraftmassakokning | |
DE3669334D1 (de) | Sulfitaufschlussverfahren zur herstellung von zellstoff aus lignozellulosehaltigen materialien mit rueckgewinnung der aufschlusschemikalien. | |
ATE138129T1 (de) | Diskontinuierliches verfahren zur herstellung von kraft-zellstoffen | |
FI843766L (fi) | Foerfarande foer tillvaratagande av lignin ur alkaliska ligninloesningar. | |
SE8902722D0 (sv) | Metod foer styrning av en alkalisk cellulosakokning | |
SE8504083L (sv) | Metod for tillverkning av cellulosamassa | |
DE69111098D1 (de) | Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute. | |
SE8200756L (sv) | Sett att framstella kemimekanisk pappersmassa | |
FR2298642A1 (fr) | Production de pate a papier mecanique blanchie a | |
SE8604852L (sv) | Delignifiering och blekning av en cellulosamassa med en alkali-syre-hypokloritextraktion | |
GB2005743A (en) | A process for the production of softwood pulp for chemical further processing and for special papers | |
GB1119546A (en) | Improved method of treating fibrous material | |
DE3274887D1 (en) | A method of polysulphide treatment in alkaline pulping of lignocellulose material | |
SE9002039D0 (sv) | Saett att framstaella massa | |
GB1071666A (en) | Improved process for making newsprint | |
ATE179T1 (de) | 1,2,3,4,4a,9a-hexahydroanthrazen-9,10-dion, seine herstellung und seine verwendung beim delignifizieren von ligninhaltigem cellulosematerial. |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NAV | Patent application has lapsed |
Ref document number: 8902722-1 Effective date: 19910718 Format of ref document f/p: F |