FR2257733A1 - - Google Patents
Info
- Publication number
- FR2257733A1 FR2257733A1 FR7416912A FR7416912A FR2257733A1 FR 2257733 A1 FR2257733 A1 FR 2257733A1 FR 7416912 A FR7416912 A FR 7416912A FR 7416912 A FR7416912 A FR 7416912A FR 2257733 A1 FR2257733 A1 FR 2257733A1
- Authority
- FR
- France
- 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.)
- Withdrawn
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
- D21C3/222—Use of compounds accelerating the pulping processes
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US433868A US3883391A (en) | 1974-01-16 | 1974-01-16 | Treatment of lignocellulosic material with an aqueous containing cyanide ions and an alkaline earth metal salt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2257733A1 true FR2257733A1 (ru) | 1975-08-08 |
Family
ID=23721851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7416912A Withdrawn FR2257733A1 (ru) | 1974-01-16 | 1974-05-15 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3883391A (ru) |
| CA (1) | CA1012708A (ru) |
| FR (1) | FR2257733A1 (ru) |
| SE (1) | SE391205B (ru) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3929559A (en) * | 1974-12-16 | 1975-12-30 | Mac Millan Bloedel Ltd | Stabilization of cellulosic material by treatment with ferricyanide ion |
| US5728265A (en) * | 1995-06-12 | 1998-03-17 | Henkel Corporation | Process for enhancing white liquor penetration into wood chips by contacting the chips with a mixture of the white liquor and a polymethylalkyl siloxane |
| US8591702B2 (en) | 2008-12-08 | 2013-11-26 | Fpinnovations | Increasing alkaline pulping yield for softwood with metal ions |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3532596A (en) * | 1967-09-22 | 1970-10-06 | Westvaco Corp | Method for stabilizing polysaccharides against alkaline attack |
| CA895757A (en) * | 1970-04-03 | 1972-03-21 | E. Worster Hans | Single-stage soda-oxygen pulping |
| US3663358A (en) * | 1970-04-29 | 1972-05-16 | Westvaco Corp | A METHOD FOR INCREASING BISULFITE PULP YIELD COMPRISING TREATING LIGNOCELLULOSIC MATERIAL WITH CYANIDE IONS AT A pH OF 7{14 12 PRIOR TO DIGESTION |
-
1974
- 1974-01-16 US US433868A patent/US3883391A/en not_active Expired - Lifetime
- 1974-04-23 SE SE7405422A patent/SE391205B/xx unknown
- 1974-04-23 CA CA198,000A patent/CA1012708A/en not_active Expired
- 1974-05-15 FR FR7416912A patent/FR2257733A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| SE391205B (sv) | 1977-02-07 |
| CA1012708A (en) | 1977-06-28 |
| US3883391A (en) | 1975-05-13 |
| SE7405422L (ru) | 1975-07-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |