GB375821A - Process and apparatus for the recovery of cellulose from raw materials - Google Patents
Process and apparatus for the recovery of cellulose from raw materialsInfo
- Publication number
- GB375821A GB375821A GB9634/31A GB963431A GB375821A GB 375821 A GB375821 A GB 375821A GB 9634/31 A GB9634/31 A GB 9634/31A GB 963431 A GB963431 A GB 963431A GB 375821 A GB375821 A GB 375821A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vessel
- digester
- tanks
- hours
- atmospheres
- 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
- 229920002678 cellulose Polymers 0.000 title abstract 2
- 239000001913 cellulose Substances 0.000 title abstract 2
- 239000002994 raw material Substances 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000011084 recovery Methods 0.000 title 1
- 230000029087 digestion Effects 0.000 abstract 3
- 238000005470 impregnation Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 238000009835 boiling Methods 0.000 abstract 1
- LVGQIQHJMRUCRM-UHFFFAOYSA-L calcium bisulfite Chemical compound [Ca+2].OS([O-])=O.OS([O-])=O LVGQIQHJMRUCRM-UHFFFAOYSA-L 0.000 abstract 1
- 235000010260 calcium hydrogen sulphite Nutrition 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000002023 wood 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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
- D21C1/10—Physical methods for facilitating impregnation
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S162/00—Paper making and fiber liberation
- Y10S162/02—Chip soaking
Landscapes
- Paper (AREA)
- Extraction Or Liquid Replacement (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO375821X | 1930-05-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB375821A true GB375821A (en) | 1932-06-30 |
Family
ID=19905439
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10159/32A Expired GB375873A (en) | 1930-05-27 | 1931-03-30 | Container for impregnating wood chips and the like with solutions of chemicals under pressure prior to the digestion operation in the manufacture of cellulose |
| GB9634/31A Expired GB375821A (en) | 1930-05-27 | 1931-03-30 | Process and apparatus for the recovery of cellulose from raw materials |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB10159/32A Expired GB375873A (en) | 1930-05-27 | 1931-03-30 | Container for impregnating wood chips and the like with solutions of chemicals under pressure prior to the digestion operation in the manufacture of cellulose |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1904894A (cs) |
| BE (1) | BE379441A (cs) |
| DE (1) | DE593890C (cs) |
| FR (1) | FR720219A (cs) |
| GB (2) | GB375873A (cs) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1044477B (de) * | 1954-03-01 | 1958-11-20 | Amsler Morton Corp | Anordnung zur Regelung, Anzeige oder Registrierung einer Betriebsgroesse |
| US2885317A (en) * | 1954-03-30 | 1959-05-05 | Stora Kopparbergs Bergslags Ab | Method in manufacturing chemical or semi-chemical pulp from heavily resinous wood |
| US3076739A (en) * | 1958-08-11 | 1963-02-05 | Nettel Frederick | Manufacture of pulp from fibrous substances |
| US3393122A (en) * | 1964-06-03 | 1968-07-16 | Georgia Pacific Corp | Pretreatment of green wood with reducing agent prior to storage |
-
0
- BE BE379441D patent/BE379441A/xx unknown
-
1931
- 1931-01-31 DE DEW84936D patent/DE593890C/de not_active Expired
- 1931-03-30 GB GB10159/32A patent/GB375873A/en not_active Expired
- 1931-03-30 GB GB9634/31A patent/GB375821A/en not_active Expired
- 1931-04-04 US US527672A patent/US1904894A/en not_active Expired - Lifetime
- 1931-04-23 FR FR720219D patent/FR720219A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US1904894A (en) | 1933-04-18 |
| FR720219A (fr) | 1932-02-17 |
| GB375873A (en) | 1932-06-30 |
| DE593890C (de) | 1934-03-09 |
| BE379441A (cs) |
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