BE452026A - - Google Patents
Info
- Publication number
- BE452026A BE452026A BE452026DA BE452026A BE 452026 A BE452026 A BE 452026A BE 452026D A BE452026D A BE 452026DA BE 452026 A BE452026 A BE 452026A
- 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
- D21C3/00—Pulping cellulose-containing materials
- D21C3/22—Other features of pulping processes
- D21C3/26—Multistage processes
- D21C3/266—Multistage processes the same pulping agent being used in all stages
-
- 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
-
- 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
- D21C3/26—Multistage processes
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP0085066 | 1942-10-28 | ||
| DEP0085067 | 1942-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE452026A true BE452026A (US07122603-20061017-C00294.png) | 1943-09-30 |
Family
ID=25991031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE452026D BE452026A (US07122603-20061017-C00294.png) | 1942-10-28 | 1943-08-25 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE452026A (US07122603-20061017-C00294.png) |
| FR (2) | FR897271A (US07122603-20061017-C00294.png) |
-
1943
- 1943-08-16 FR FR897271D patent/FR897271A/fr not_active Expired
- 1943-08-19 FR FR897371D patent/FR897371A/fr not_active Expired
- 1943-08-25 BE BE452026D patent/BE452026A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| FR897371A (fr) | 1945-03-20 |
| FR897271A (fr) | 1945-03-16 |
