FI813896L - FOERFARANDE FOER HARTSHALTSMINSKNING VID FRAMSTAELLNING AV CELLULOSAMASSOR UR LIGNOCELLULOSAMATERIAL - Google Patents
FOERFARANDE FOER HARTSHALTSMINSKNING VID FRAMSTAELLNING AV CELLULOSAMASSOR UR LIGNOCELLULOSAMATERIALInfo
- Publication number
- FI813896L FI813896L FI813896A FI813896A FI813896L FI 813896 L FI813896 L FI 813896L FI 813896 A FI813896 A FI 813896A FI 813896 A FI813896 A FI 813896A FI 813896 L FI813896 L FI 813896L
- Authority
- FI
- Finland
- Prior art keywords
- lignocellulosamaterial
- hartshaltsminskning
- cellulosamassor
- foerfarande foer
- vid framstaellning
- 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
- 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)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8008574 | 1980-12-05 | ||
SE8008574A SE424884B (en) | 1980-12-05 | 1980-12-05 | PROCEDURE FOR HEART LOSS REDUCTION IN MANUFACTURING CELLULOSAMASSES OF LIGNOCELLULOSAMENTAL |
Publications (3)
Publication Number | Publication Date |
---|---|
FI813896L true FI813896L (en) | 1982-06-06 |
FI69657B FI69657B (en) | 1985-11-29 |
FI69657C FI69657C (en) | 1990-10-31 |
Family
ID=20342404
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI813896A FI69657C (en) | 1980-12-05 | 1981-12-04 | FOERFARANDE FOER HARTSHALTSMINSKNING VID FRAMSTAELLNING AV CELLULOSAMASSOR UR LIGNOCELLULOSAMATERIAL. |
Country Status (8)
Country | Link |
---|---|
JP (1) | JPS57121692A (en) |
AU (1) | AU529326B2 (en) |
CA (1) | CA1162358A (en) |
CH (1) | CH655965A5 (en) |
DE (1) | DE3148101C2 (en) |
FI (1) | FI69657C (en) |
NO (1) | NO156905C (en) |
SE (1) | SE424884B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5930980A (en) * | 1982-08-12 | 1984-02-18 | 王子製紙株式会社 | Bleaching of lignocellulose substance |
SE502321C2 (en) * | 1994-03-04 | 1995-10-02 | Kvaerner Pulping Tech | Process of ozone bleaching of sulphite pulp |
FI20070126A0 (en) | 2006-09-08 | 2007-02-13 | Linde Ag | Process for de-pulping and using carbon dioxide or (bi) carbonate for this |
-
1980
- 1980-12-05 SE SE8008574A patent/SE424884B/en not_active IP Right Cessation
-
1981
- 1981-11-25 AU AU77888/81A patent/AU529326B2/en not_active Ceased
- 1981-12-04 CH CH7774/81A patent/CH655965A5/en not_active IP Right Cessation
- 1981-12-04 NO NO814163A patent/NO156905C/en not_active IP Right Cessation
- 1981-12-04 FI FI813896A patent/FI69657C/en not_active IP Right Cessation
- 1981-12-04 JP JP56196181A patent/JPS57121692A/en active Granted
- 1981-12-04 DE DE3148101A patent/DE3148101C2/en not_active Expired
- 1981-12-07 CA CA000391674A patent/CA1162358A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
SE8008574L (en) | 1982-06-06 |
NO156905B (en) | 1987-09-07 |
NO814163L (en) | 1982-06-07 |
SE424884B (en) | 1982-08-16 |
AU529326B2 (en) | 1983-06-02 |
DE3148101A1 (en) | 1982-08-12 |
FI69657C (en) | 1990-10-31 |
AU7788881A (en) | 1982-06-17 |
CH655965A5 (en) | 1986-05-30 |
NO156905C (en) | 1987-12-16 |
JPH0114358B2 (en) | 1989-03-10 |
DE3148101C2 (en) | 1985-11-07 |
CA1162358A (en) | 1984-02-21 |
JPS57121692A (en) | 1982-07-29 |
FI69657B (en) | 1985-11-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MA | Patent expired |
Owner name: MO OCH DOMSJOE AB |