FI46271B - - Google Patents
Info
- Publication number
- FI46271B FI46271B FI1177/66A FI117766A FI46271B FI 46271 B FI46271 B FI 46271B FI 1177/66 A FI1177/66 A FI 1177/66A FI 117766 A FI117766 A FI 117766A FI 46271 B FI46271 B FI 46271B
- Authority
- FI
- Finland
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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
-
- 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
- D21C9/086—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 with organic compounds or compositions comprising organic compounds
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE5960/65A SE311468B (fi) | 1965-05-06 | 1965-05-06 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FI46271B true FI46271B (fi) | 1972-10-31 |
| FI46271C FI46271C (fi) | 1973-02-12 |
Family
ID=20267609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI661177A FI46271C (fi) | 1965-05-06 | 1966-05-05 | Tapa pienentää hartsipitoisuutta keitettäessä alkaalisesti puuta, edul lisesti lehtipuuta. |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI46271C (fi) |
| SE (1) | SE311468B (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI121382B (fi) | 2002-12-23 | 2010-10-29 | Arizona Chemical B V | Puunkeiton apuaine, sen valmistus ja käyttö |
| FI122689B (fi) * | 2003-06-05 | 2012-05-31 | Forchem Oy | Menetelmä uuteaineiden poistamiseksi selluloosamassasta |
-
1965
- 1965-05-06 SE SE5960/65A patent/SE311468B/xx unknown
-
1966
- 1966-05-05 FI FI661177A patent/FI46271C/fi active
Also Published As
| Publication number | Publication date |
|---|---|
| FI46271C (fi) | 1973-02-12 |
| SE311468B (fi) | 1969-06-09 |