BE454509A - - Google Patents
Info
- Publication number
- BE454509A BE454509A BE454509DA BE454509A BE 454509 A BE454509 A BE 454509A BE 454509D A BE454509D A BE 454509DA BE 454509 A BE454509 A BE 454509A
- 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
- D21C3/04—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
- D21C3/12—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites sodium bisulfite
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE902709X | 1943-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE454509A true BE454509A (ru) |
Family
ID=6861167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE454509D BE454509A (ru) | 1943-02-22 |
Country Status (2)
| Country | Link |
|---|---|
| BE (1) | BE454509A (ru) |
| FR (1) | FR902709A (ru) |
-
0
- BE BE454509D patent/BE454509A/xx unknown
-
1944
- 1944-03-14 FR FR902709D patent/FR902709A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR902709A (fr) | 1945-09-11 |