BE415620A - - Google Patents
Info
- Publication number
- BE415620A BE415620A BE415620DA BE415620A BE 415620 A BE415620 A BE 415620A BE 415620D A BE415620D A BE 415620DA BE 415620 A BE415620 A BE 415620A
- Authority
- BE
- Belgium
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
- 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)
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US735438A US2074473A (en) | 1934-07-16 | 1934-07-16 | Process of removing coloring matter from wood pulp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE415620A true BE415620A (fr) | 1936-06-30 |
Family
ID=10018795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE415620D BE415620A (fr) | 1934-07-16 | 1936-05-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2074473A (fr) |
| BE (1) | BE415620A (fr) |
| CH (1) | CH191024A (fr) |
| FR (1) | FR807159A (fr) |
| GB (1) | GB468306A (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2502330A (en) * | 1943-03-01 | 1950-03-28 | Clarence E Libby | Washing paper pulp to remove coloring matter |
| US2716058A (en) * | 1950-06-24 | 1955-08-23 | Int Paper Canada | Deresination of wood pulp |
| US2738271A (en) * | 1954-04-02 | 1956-03-13 | Fiber Processors Inc | Process for degumming ramie fiber |
| US3174896A (en) * | 1961-12-14 | 1965-03-23 | Rayonier Inc | Treatment of spent caustic solution |
| FI121382B (fi) * | 2002-12-23 | 2010-10-29 | Arizona Chemical B V | Puunkeiton apuaine, sen valmistus ja käyttö |
-
1934
- 1934-07-16 US US735438A patent/US2074473A/en not_active Expired - Lifetime
-
1936
- 1936-05-09 GB GB13208/36A patent/GB468306A/en not_active Expired
- 1936-05-16 FR FR807159D patent/FR807159A/fr not_active Expired
- 1936-05-19 BE BE415620D patent/BE415620A/xx unknown
- 1936-05-30 CH CH191024D patent/CH191024A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2074473A (en) | 1937-03-23 |
| GB468306A (en) | 1937-07-02 |
| CH191024A (de) | 1937-05-31 |
| FR807159A (fr) | 1937-01-06 |