FR72957E - - Google Patents
Info
- Publication number
- FR72957E FR72957E FR72957DA FR72957E FR 72957 E FR72957 E FR 72957E FR 72957D A FR72957D A FR 72957DA FR 72957 E FR72957 E FR 72957E
- Authority
- FR
- France
- 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.)
- Active
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
- D21C3/222—Use of compounds accelerating the pulping processes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1062101X | 1956-11-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR72957E true FR72957E (xx) |
Family
ID=9600447
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR72957D Active FR72957E (xx) | 1956-11-05 | ||
| FR1160482D Expired FR1160482A (fr) | 1956-11-05 | 1956-11-05 | Procédé d'obtention de pâtes écrues banches à haut rendement de matières premières cellulosiques diverses |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1160482D Expired FR1160482A (fr) | 1956-11-05 | 1956-11-05 | Procédé d'obtention de pâtes écrues banches à haut rendement de matières premières cellulosiques diverses |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2920010A (xx) |
| DE (1) | DE1062101B (xx) |
| FR (2) | FR1160482A (xx) |
| GB (1) | GB829506A (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3013934A (en) * | 1958-08-12 | 1961-12-19 | West Virginia Pulp & Paper Co | High yield pulp from hardwoods |
| US3393122A (en) * | 1964-06-03 | 1968-07-16 | Georgia Pacific Corp | Pretreatment of green wood with reducing agent prior to storage |
| US3448003A (en) * | 1966-01-03 | 1969-06-03 | Dow Chemical Co | On-stream cleaning of wood chip digesters using chelating agents |
| US3630832A (en) * | 1969-11-10 | 1971-12-28 | Int Paper Canada | Controlled alkaline sulfite pulping |
| SE355614B (xx) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
| ZA773044B (en) * | 1976-06-02 | 1978-04-26 | Australian Paper Manufacturers | Improvements in pulping processes |
| US4181565A (en) * | 1976-12-10 | 1980-01-01 | Honshu Seishi Kabushiki Kaisha | Process for cooking lignocellulosic material in the presence of hydroxyanthracenes and derivatives thereof |
| JPS5374101A (en) * | 1976-12-10 | 1978-07-01 | Honshu Paper Co Ltd | Pulp making method |
| US5169496A (en) * | 1991-04-23 | 1992-12-08 | International Paper Company | Method of producing multi-ply paper and board products exhibiting increased stiffness |
| IT201800005473A1 (it) * | 2018-05-17 | 2019-11-17 | Processo di stabilizzazione di idrosolfito |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE30072C (de) * | A. FIEGEL und Dr. L. COHN i in Berlin | Behandlung von Faserstoffen mit ! Lösung von schwefliger Säure, welche behufs Erj höhung ihrer Wirksamkeit mit Salz- und Essigsäure versetzt ist | ||
| 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 |
| US1859847A (en) * | 1926-08-04 | 1932-05-24 | Arthur M Hyde | Pulped material and process of preparing the same |
| US1974751A (en) * | 1934-01-06 | 1934-09-25 | Brown Co | Chemical pulping process |
| GB741980A (en) * | 1951-03-22 | 1955-12-14 | Asplund Arne J A | Improvements in the manufacture of pulp from fibrous ligno-cellulose-containing materials |
-
0
- FR FR72957D patent/FR72957E/fr active Active
-
1956
- 1956-11-05 FR FR1160482D patent/FR1160482A/fr not_active Expired
-
1957
- 1957-10-29 US US693001A patent/US2920010A/en not_active Expired - Lifetime
- 1957-10-30 GB GB33929/57A patent/GB829506A/en not_active Expired
- 1957-11-05 DE DEV13337A patent/DE1062101B/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR1160482A (fr) | 1958-07-16 |
| US2920010A (en) | 1960-01-05 |
| GB829506A (en) | 1960-03-02 |
| DE1062101B (de) | 1959-07-23 |