NL90306C - - Google Patents
Info
- Publication number
- NL90306C NL90306C NL90306DA NL90306C NL 90306 C NL90306 C NL 90306C NL 90306D A NL90306D A NL 90306DA NL 90306 C NL90306 C NL 90306C
- Authority
- NL
- Netherlands
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
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE300957X | 1951-02-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
NL90306C true NL90306C (fr) |
Family
ID=6097037
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL90306D NL90306C (fr) | 1951-02-28 |
Country Status (6)
Country | Link |
---|---|
US (1) | US2851355A (fr) |
BE (1) | BE504423A (fr) |
CH (1) | CH300957A (fr) |
FR (1) | FR1062445A (fr) |
GB (1) | GB736300A (fr) |
NL (1) | NL90306C (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2906659A (en) * | 1953-07-13 | 1959-09-29 | Abitibi Power & Paper Co | High yields bisulphite pulping process |
US3013931A (en) * | 1957-02-01 | 1961-12-19 | Hawaiian Dev Company Ltd | Printing paper and process of making the same |
US3046184A (en) * | 1958-12-31 | 1962-07-24 | Kimberly Clark Co | Manufacture of cellulosic products |
US3088861A (en) * | 1960-08-03 | 1963-05-07 | Weyerhaeuser Co | Method of manufacturing chemical pulp from lignocellulose material |
US3069310A (en) * | 1960-10-14 | 1962-12-18 | Hammermill Paper Co | Semichemical pulping process for soft woods |
US3448003A (en) * | 1966-01-03 | 1969-06-03 | Dow Chemical Co | On-stream cleaning of wood chip digesters using chelating agents |
SE355614B (fr) * | 1970-05-13 | 1973-04-30 | Mo Och Domsjoe Ab | |
US8747709B2 (en) * | 2012-05-03 | 2014-06-10 | Empire Technology Development Llc | Phosphonate-substituted lignin as a flame retardant |
CA2979048C (fr) * | 2015-03-11 | 2021-03-16 | Andritz Inc. | Procedes et systemes pour la reduction en pate de matieres lignocellulosiques |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1244525A (en) * | 1917-08-02 | 1917-10-30 | Tsuneya Marusawa | Process of manufacturing paper-pulp. |
US1566118A (en) * | 1925-03-21 | 1925-12-15 | Citizens Of The United States | Method for the prevention of corrosion in steel digesters |
US1792510A (en) * | 1925-07-01 | 1931-02-17 | Brown Co | Kraft-simulating pulp and process of producing same |
US1859848A (en) * | 1926-09-03 | 1932-05-24 | Arthur M Hyde | Production of fibrous pulp from vegetable material |
US1891337A (en) * | 1930-01-09 | 1932-12-20 | Du Pont | Process of producing cellulose |
DE564738C (de) * | 1931-01-09 | 1932-11-23 | Patentaktiebolaget Groendal Ra | Verfahren zur Herstellung von Sulfitzellstoff |
GB400974A (en) * | 1932-03-04 | 1933-11-06 | Henry Dreyfus | Improvements in or relating to the production of cellulosic materials or cellulose |
US2564028A (en) * | 1946-01-17 | 1951-08-14 | Rayonier Inc | Wood pulp digestion |
BE496841A (fr) * | 1949-07-12 |
-
0
- BE BE504423D patent/BE504423A/xx unknown
- NL NL90306D patent/NL90306C/xx active
-
1951
- 1951-08-24 CH CH300957D patent/CH300957A/de unknown
- 1951-11-15 US US256593A patent/US2851355A/en not_active Expired - Lifetime
-
1952
- 1952-02-22 FR FR1062445D patent/FR1062445A/fr not_active Expired
- 1952-02-28 GB GB5228/52A patent/GB736300A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2851355A (en) | 1958-09-09 |
GB736300A (en) | 1955-09-07 |
BE504423A (fr) | |
FR1062445A (fr) | 1954-04-23 |
CH300957A (de) | 1954-08-31 |