GB147232A - Improved process for the treatment of wood and other cellulose-containing materials - Google Patents
Improved process for the treatment of wood and other cellulose-containing materialsInfo
- Publication number
- GB147232A GB147232A GB19313/20A GB1931320A GB147232A GB 147232 A GB147232 A GB 147232A GB 19313/20 A GB19313/20 A GB 19313/20A GB 1931320 A GB1931320 A GB 1931320A GB 147232 A GB147232 A GB 147232A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- cellulose
- containing materials
- wood
- treatment
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000002023 wood Substances 0.000 title abstract 3
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 229920003043 Cellulose fiber Polymers 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 150000007513 acids Chemical class 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000006227 byproduct Substances 0.000 abstract 1
- 150000001720 carbohydrates Chemical class 0.000 abstract 1
- 235000014633 carbohydrates Nutrition 0.000 abstract 1
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 230000002939 deleterious effect Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
- 235000018553 tannin Nutrition 0.000 abstract 1
- 229920001864 tannin Polymers 0.000 abstract 1
- 239000001648 tannin Substances 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
Landscapes
- Paper (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE304214T | 1916-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB147232A true GB147232A (en) | 1921-09-29 |
Family
ID=5671872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19313/20A Expired GB147232A (en) | 1916-10-19 | 1920-07-07 | Improved process for the treatment of wood and other cellulose-containing materials |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH90313A (enrdf_load_stackoverflow) |
| DE (1) | DE304214C (enrdf_load_stackoverflow) |
| FR (1) | FR519793A (enrdf_load_stackoverflow) |
| GB (1) | GB147232A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093507A (en) * | 1976-11-17 | 1978-06-06 | Torsten Gillberg | Method of liquid treating cellulose fibres with elastic pressure shocks |
| US4172006A (en) * | 1976-08-26 | 1979-10-23 | Weyerhaeuser Company | Method of delignifying wood chips with oxygen by adding cooking liquor under pressure |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2474862A (en) * | 1942-10-15 | 1949-07-05 | Kamyr Ab | Process and apparatus for continuous digestion of fibrous materials |
| DE956644C (de) * | 1944-04-01 | 1957-01-24 | Arne Johan Arthur Asplund Dipl | Einrichtung und Verfahren zum Zerfasern von Lignocellulose enthaltendem Fasergut |
| DE1042371B (de) * | 1952-03-31 | 1958-10-30 | Herbert Kurth | Verfahren zur Gewinnung von pulverfoermigem Lignin fuer die Herstellung von Pressmassen bei der Erzeugung von Zellstoffprodukten |
| US2640774A (en) * | 1953-01-27 | 1953-06-02 | Pulp And Papen Res Inst Of Can | Production of cellulose pulp |
| DE1134577B (de) * | 1958-03-22 | 1962-08-09 | Aschaffenburger Zellstoffwerke | Vorbehandlung von Tannen- und Fichtenholz-Hackschnitzeln zur Gewinnung von Zellstoff nach dem sauren Sulfitverfahren |
| SE308443B (enrdf_load_stackoverflow) * | 1965-02-11 | 1969-02-10 | Defibrator Ab |
-
1916
- 1916-10-19 DE DE1916304214D patent/DE304214C/de not_active Expired - Lifetime
-
1920
- 1920-06-29 CH CH90313D patent/CH90313A/de unknown
- 1920-07-07 GB GB19313/20A patent/GB147232A/en not_active Expired
- 1920-07-08 FR FR519793A patent/FR519793A/fr not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4172006A (en) * | 1976-08-26 | 1979-10-23 | Weyerhaeuser Company | Method of delignifying wood chips with oxygen by adding cooking liquor under pressure |
| US4093507A (en) * | 1976-11-17 | 1978-06-06 | Torsten Gillberg | Method of liquid treating cellulose fibres with elastic pressure shocks |
Also Published As
| Publication number | Publication date |
|---|---|
| DE304214C (enrdf_load_stackoverflow) | |
| CH90313A (de) | 1921-08-16 |
| FR519793A (fr) | 1921-06-15 |
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