FR2177975B1 - - Google Patents
Info
- Publication number
- FR2177975B1 FR2177975B1 FR7310739A FR7310739A FR2177975B1 FR 2177975 B1 FR2177975 B1 FR 2177975B1 FR 7310739 A FR7310739 A FR 7310739A FR 7310739 A FR7310739 A FR 7310739A FR 2177975 B1 FR2177975 B1 FR 2177975B1
- 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.)
- Expired
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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
-
- 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
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3018572A JPS5611797B2 (ru) | 1972-03-25 | 1972-03-25 | |
JP3018472A JPS5611796B2 (ru) | 1972-03-25 | 1972-03-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2177975A1 FR2177975A1 (en) | 1973-11-09 |
FR2177975B1 true FR2177975B1 (ru) | 1976-04-09 |
Family
ID=26368492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7310739A Granted FR2177975A1 (en) | 1972-03-25 | 1973-03-26 | Paper pulp waste liquor - purified and chemicals recycled |
Country Status (4)
Country | Link |
---|---|
CA (1) | CA982306A (ru) |
FI (1) | FI62357C (ru) |
FR (1) | FR2177975A1 (ru) |
SE (1) | SE404045B (ru) |
-
1973
- 1973-03-19 FI FI84573A patent/FI62357C/fi active
- 1973-03-23 SE SE7304119A patent/SE404045B/xx unknown
- 1973-03-23 CA CA167,287A patent/CA982306A/en not_active Expired
- 1973-03-26 FR FR7310739A patent/FR2177975A1/fr active Granted
Also Published As
Publication number | Publication date |
---|---|
FI62357C (fi) | 1982-12-10 |
SE404045B (sv) | 1978-09-18 |
CA982306A (en) | 1976-01-27 |
FI62357B (fi) | 1982-08-31 |
FR2177975A1 (en) | 1973-11-09 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
ST | Notification of lapse |