DD112795A5 - - Google Patents
Info
- Publication number
- DD112795A5 DD112795A5 DD178213A DD17821374A DD112795A5 DD 112795 A5 DD112795 A5 DD 112795A5 DD 178213 A DD178213 A DD 178213A DD 17821374 A DD17821374 A DD 17821374A DD 112795 A5 DD112795 A5 DD 112795A5
- Authority
- DD
- German Democratic Republic
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
- D21C11/02—Regeneration of pulp liquors or effluent waste waters of acid, neutral or alkaline sulfite lye
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US356716A US3873415A (en) | 1973-05-03 | 1973-05-03 | Process for reducing the amount of calcium contained in sodium-base waste sulfite liquor by the use of a sodium and/or an ammonium compound and additional calcium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD112795A5 true DD112795A5 (cs) | 1975-05-05 |
Family
ID=23402643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD178213A DD112795A5 (cs) | 1973-05-03 | 1974-04-30 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3873415A (cs) |
| JP (1) | JPS5013603A (cs) |
| AT (1) | AT334196B (cs) |
| BR (1) | BR7403580D0 (cs) |
| CA (1) | CA1017505A (cs) |
| CS (1) | CS174131B2 (cs) |
| DD (1) | DD112795A5 (cs) |
| DE (1) | DE2419326C3 (cs) |
| FR (1) | FR2228133B1 (cs) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI972954L (fi) * | 1997-07-11 | 1999-01-12 | Sunds Defibrator Pori Oy | Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1834845A (en) * | 1929-09-23 | 1931-12-01 | Courtaulds Ltd | Treatment of waste liquors |
| US2644748A (en) * | 1946-11-04 | 1953-07-07 | Chempatents Inc | Sulfite waste treatment process |
| US2739039A (en) * | 1951-08-24 | 1956-03-20 | Allied Chem & Dye Corp | Treatment of waste ammonium sulfite pulping liquors |
| NL96180C (cs) * | 1952-02-21 | |||
| US3812235A (en) * | 1968-02-12 | 1974-05-21 | Spring Chemicals Ltd | Process for treating magnesium-base waste sulfite liquor |
| DE2006326C3 (de) * | 1969-02-12 | 1975-08-07 | Spring Chemicals Ltd., Toronto, Ontario (Kanada) | Verfahren zur Behandlung von Sulfitablaugen |
| CA928009A (en) * | 1969-12-27 | 1973-06-12 | Mita Akio | Method for manufacturing sulfite pulp cooking liquor from sulfite pulp spent liquor |
| US3794718A (en) * | 1971-09-22 | 1974-02-26 | Spring Chemicals Ltd | Process for reducing the amount of calcium contained in magnesium-base waste sulfite liquor by the use of an ammonium compound and additional calcium |
| US3740309A (en) * | 1971-09-22 | 1973-06-19 | T Lahtvee | Process for treating ammonia-base waste sulfite liquor |
-
1973
- 1973-05-03 US US356716A patent/US3873415A/en not_active Expired - Lifetime
-
1974
- 1974-04-17 CA CA197,682A patent/CA1017505A/en not_active Expired
- 1974-04-22 DE DE2419326A patent/DE2419326C3/de not_active Expired
- 1974-04-26 AT AT348674A patent/AT334196B/de not_active IP Right Cessation
- 1974-04-30 DD DD178213A patent/DD112795A5/xx unknown
- 1974-05-02 BR BR3580/74A patent/BR7403580D0/pt unknown
- 1974-05-02 JP JP49048898A patent/JPS5013603A/ja active Pending
- 1974-05-02 CS CS3150A patent/CS174131B2/cs unknown
- 1974-05-03 FR FR7415396A patent/FR2228133B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2228133B1 (cs) | 1979-08-03 |
| CS174131B2 (cs) | 1977-03-31 |
| DE2419326C3 (de) | 1979-10-18 |
| JPS5013603A (cs) | 1975-02-13 |
| DE2419326A1 (de) | 1974-11-14 |
| ATA348674A (de) | 1976-04-15 |
| AT334196B (de) | 1976-01-10 |
| CA1017505A (en) | 1977-09-20 |
| DE2419326B2 (de) | 1979-02-15 |
| BR7403580D0 (pt) | 1974-11-19 |
| FR2228133A1 (cs) | 1974-11-29 |
| US3873415A (en) | 1975-03-25 |