BE722138A - - Google Patents
Info
- Publication number
- BE722138A BE722138A BE722138DA BE722138A BE 722138 A BE722138 A BE 722138A BE 722138D A BE722138D A BE 722138DA BE 722138 A BE722138 A BE 722138A
- 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
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US67560767A | 1967-10-16 | 1967-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE722138A true BE722138A (https=) | 1969-03-14 |
Family
ID=24711231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE722138D BE722138A (https=) | 1967-10-16 | 1968-10-10 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3523060A (https=) |
| BE (1) | BE722138A (https=) |
| DE (1) | DE1803189A1 (https=) |
| DK (1) | DK125142B (https=) |
| GB (1) | GB1233231A (https=) |
| NO (1) | NO125319B (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4295929A (en) * | 1979-07-03 | 1981-10-20 | International Telephone And Telegraph Corp. | Process for acid sulfite digestion of wood |
| US5037663A (en) * | 1981-10-14 | 1991-08-06 | Colorado State University Research Foundation | Process for increasing the reactivity of cellulose-containing materials |
| US8268125B2 (en) * | 2008-03-24 | 2012-09-18 | Api Intellectual Property Holdings, Llc | Method for vapor phase pulping with alcohol and sulfur dioxide |
| US11118017B2 (en) | 2019-11-13 | 2021-09-14 | American Process International LLC | Process for the production of bioproducts from lignocellulosic material |
| US11306113B2 (en) * | 2019-11-13 | 2022-04-19 | American Process International LLC | Process for the production of cellulose, lignocellulosic sugars, lignosulfonate, and ethanol |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2060068A (en) * | 1935-03-14 | 1936-11-10 | Celanese Corp | Manufacture of cellulose from lignocellulosic materials |
| US3210237A (en) * | 1963-04-15 | 1965-10-05 | Boise Cascade Corp | Bisulphite pulping of pine wood |
-
1967
- 1967-10-16 US US675607A patent/US3523060A/en not_active Expired - Lifetime
-
1968
- 1968-10-10 BE BE722138D patent/BE722138A/xx unknown
- 1968-10-10 GB GB1233231D patent/GB1233231A/en not_active Expired
- 1968-10-10 NO NO4027/68A patent/NO125319B/no unknown
- 1968-10-15 DE DE19681803189 patent/DE1803189A1/de active Pending
- 1968-10-15 DK DK495568AA patent/DK125142B/da unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US3523060A (en) | 1970-08-04 |
| NO125319B (https=) | 1972-08-21 |
| GB1233231A (https=) | 1971-05-26 |
| DK125142B (da) | 1973-01-02 |
| DE1803189A1 (de) | 1970-07-02 |