FR2283988A1 - Preparation de pate au sulfite - Google Patents
Preparation de pate au sulfiteInfo
- Publication number
- FR2283988A1 FR2283988A1 FR7527116A FR7527116A FR2283988A1 FR 2283988 A1 FR2283988 A1 FR 2283988A1 FR 7527116 A FR7527116 A FR 7527116A FR 7527116 A FR7527116 A FR 7527116A FR 2283988 A1 FR2283988 A1 FR 2283988A1
- Authority
- FR
- France
- Prior art keywords
- pref
- wood
- amt
- added
- paste preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 title abstract 2
- 239000002023 wood Substances 0.000 abstract 3
- BDAGIHXWWSANSR-UHFFFAOYSA-N Formic acid Chemical compound OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 abstract 1
- 229920002678 cellulose Polymers 0.000 abstract 1
- 239000001913 cellulose Substances 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 150000002148 esters Chemical class 0.000 abstract 1
- 235000019253 formic acid Nutrition 0.000 abstract 1
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 abstract 1
- 238000005470 impregnation Methods 0.000 abstract 1
- 125000002868 norbornyl group Chemical group C12(CCC(CC1)C2)* 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/222—Use of compounds accelerating the pulping processes
Landscapes
- Paper (AREA)
- Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7411268A SE384883B (sv) | 1974-09-06 | 1974-09-06 | Sett att oka cellulosautbytet vid sulfitkokning av ved |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2283988A1 true FR2283988A1 (fr) | 1976-04-02 |
| FR2283988B1 FR2283988B1 (is") | 1978-12-08 |
Family
ID=20322071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7527116A Granted FR2283988A1 (fr) | 1974-09-06 | 1975-09-04 | Preparation de pate au sulfite |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5153002A (is") |
| AT (1) | AT344498B (is") |
| CA (1) | CA1057008A (is") |
| CH (1) | CH600036A5 (is") |
| DE (1) | DE2537785A1 (is") |
| FI (1) | FI58521C (is") |
| FR (1) | FR2283988A1 (is") |
| NO (1) | NO144577C (is") |
| SE (1) | SE384883B (is") |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2816473A1 (de) * | 1978-04-15 | 1979-10-25 | Bayer Ag | Dispersion zur verwendung bei der zellstoffgewinnung |
| DE2827111A1 (de) * | 1978-06-21 | 1980-01-10 | Bayer Ag | Mittel zur verwendung bei der zellstoffgewinnung |
| DE19516151A1 (de) * | 1995-05-03 | 1996-11-07 | Sven Siegle | Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE336535C (de) * | 1919-12-02 | 1921-05-03 | Zellstoff Und Papierfabrikatio | Verfahren zur Herstellung reinster Zellulose von baumwoll- oder wollartiger Beschaffenheit aus Vegetabilien mittels saurer Sulfitlaugen |
-
1974
- 1974-09-06 SE SE7411268A patent/SE384883B/xx unknown
-
1975
- 1975-08-25 DE DE19752537785 patent/DE2537785A1/de not_active Withdrawn
- 1975-08-27 CH CH1108775A patent/CH600036A5/xx not_active IP Right Cessation
- 1975-09-01 AT AT670575A patent/AT344498B/de not_active IP Right Cessation
- 1975-09-03 NO NO753029A patent/NO144577C/no unknown
- 1975-09-04 FR FR7527116A patent/FR2283988A1/fr active Granted
- 1975-09-05 JP JP50108467A patent/JPS5153002A/ja active Pending
- 1975-09-05 FI FI752508A patent/FI58521C/fi not_active IP Right Cessation
- 1975-09-05 CA CA234,872A patent/CA1057008A/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE336535C (de) * | 1919-12-02 | 1921-05-03 | Zellstoff Und Papierfabrikatio | Verfahren zur Herstellung reinster Zellulose von baumwoll- oder wollartiger Beschaffenheit aus Vegetabilien mittels saurer Sulfitlaugen |
Also Published As
| Publication number | Publication date |
|---|---|
| SE384883B (sv) | 1976-05-24 |
| NO753029L (is") | 1976-03-09 |
| DE2537785A1 (de) | 1976-03-18 |
| JPS5153002A (en) | 1976-05-11 |
| SE7411268L (sv) | 1976-03-08 |
| CH600036A5 (is") | 1978-06-15 |
| FI58521C (fi) | 1981-02-10 |
| FI752508A7 (is") | 1976-03-07 |
| FR2283988B1 (is") | 1978-12-08 |
| ATA670575A (de) | 1977-11-15 |
| NO144577B (no) | 1981-06-15 |
| NO144577C (no) | 1981-09-23 |
| AT344498B (de) | 1978-07-25 |
| FI58521B (fi) | 1980-10-31 |
| CA1057008A (en) | 1979-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |