GB514191A - Process and apparatus for extracting cellulose from wood or other cellulosic material - Google Patents
Process and apparatus for extracting cellulose from wood or other cellulosic materialInfo
- Publication number
- GB514191A GB514191A GB37475/38A GB3747538A GB514191A GB 514191 A GB514191 A GB 514191A GB 37475/38 A GB37475/38 A GB 37475/38A GB 3747538 A GB3747538 A GB 3747538A GB 514191 A GB514191 A GB 514191A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lye
- boiler
- alkali
- water
- pipe
- 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 12
- 229920002678 cellulose Polymers 0.000 title abstract 5
- 239000001913 cellulose Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 4
- 239000002023 wood Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 33
- 239000003513 alkali Substances 0.000 abstract 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 10
- 239000002994 raw material Substances 0.000 abstract 2
- 230000001172 regenerating effect Effects 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- 238000005406 washing Methods 0.000 abstract 2
- 229920002955 Art silk Polymers 0.000 abstract 1
- 229920000297 Rayon Polymers 0.000 abstract 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- 239000003518 caustics Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 abstract 1
- 238000007670 refining Methods 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 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
- 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
- D21C9/083—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 inorganic 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 |
|---|---|---|---|
| DE514191X | 1937-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB514191A true GB514191A (en) | 1939-11-01 |
Family
ID=6548604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB37475/38A Expired GB514191A (en) | 1937-12-27 | 1938-12-23 | Process and apparatus for extracting cellulose from wood or other cellulosic material |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE431860A (enrdf_load_stackoverflow) |
| FR (1) | FR848039A (enrdf_load_stackoverflow) |
| GB (1) | GB514191A (enrdf_load_stackoverflow) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2675311A (en) * | 1948-08-09 | 1954-04-13 | John W Natwick | Paper pulp process and apparatus |
| US2849315A (en) * | 1953-05-07 | 1958-08-26 | Haglund Gustaf | Digestion of wood |
-
0
- BE BE431860D patent/BE431860A/xx unknown
-
1938
- 1938-12-23 GB GB37475/38A patent/GB514191A/en not_active Expired
- 1938-12-27 FR FR848039D patent/FR848039A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE431860A (enrdf_load_stackoverflow) | |
| FR848039A (fr) | 1939-10-20 |
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