FI972954A - Process for treating waste liquor from the manufacture of sulphate pulp - Google Patents
Process for treating waste liquor from the manufacture of sulphate pulp Download PDFInfo
- Publication number
- FI972954A FI972954A FI972954A FI972954A FI972954A FI 972954 A FI972954 A FI 972954A FI 972954 A FI972954 A FI 972954A FI 972954 A FI972954 A FI 972954A FI 972954 A FI972954 A FI 972954A
- Authority
- FI
- Finland
- Prior art keywords
- manufacture
- waste liquor
- treating waste
- sulphate pulp
- sulphate
- Prior art date
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
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1015—Bleaching ; Apparatus therefor with use of means other than pressure, temperature
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI972954A FI972954A (en) | 1997-07-11 | 1997-07-11 | Process for treating waste liquor from the manufacture of sulphate pulp |
PCT/FI1998/000580 WO1999002771A1 (en) | 1997-07-11 | 1998-07-09 | Method for the treatment of spent liquor from kraft pulp production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI972954A FI972954A (en) | 1997-07-11 | 1997-07-11 | Process for treating waste liquor from the manufacture of sulphate pulp |
Publications (2)
Publication Number | Publication Date |
---|---|
FI972954A0 FI972954A0 (en) | 1997-07-11 |
FI972954A true FI972954A (en) | 1999-01-12 |
Family
ID=8549240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI972954A FI972954A (en) | 1997-07-11 | 1997-07-11 | Process for treating waste liquor from the manufacture of sulphate pulp |
Country Status (2)
Country | Link |
---|---|
FI (1) | FI972954A (en) |
WO (1) | WO1999002771A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FI981803A (en) * | 1998-08-21 | 2000-02-22 | Ahlstrom Machinery Oy | Procedure for preventing precipitation formation |
FI110327B (en) | 1999-10-04 | 2002-12-31 | Metso Chemical Pulping Oy | Process for the production of pulp |
SE524247C2 (en) * | 2002-11-25 | 2004-07-13 | Kvaerner Pulping Tech | Method for production of green liquor |
SE0602476L (en) * | 2006-11-22 | 2007-08-21 | Metso Fiber Karlstad Ab | Method for recovering heat energy from black liquor |
WO2013036190A1 (en) * | 2011-09-05 | 2013-03-14 | Stora Enso Oyj | Process for treating hardwood black liquor and hardwood black liquor treated according to the process |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE153753C1 (en) * | ||||
US3951753A (en) * | 1969-06-03 | 1976-04-20 | Roller Paul S | Method and apparatus for the conversion of an aqueous scale-formed liquid |
US3873415A (en) * | 1973-05-03 | 1975-03-25 | Spring Chemicals Ltd | 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 |
SE8502807D0 (en) * | 1985-06-06 | 1985-06-06 | Ahlstroem Foeretagen | SET AND DEVICE DISABLE DEVICE |
CA1299322C (en) * | 1987-10-26 | 1992-04-28 | Larry A. Wilhelmsen | Apparatus and methods for reducing the formation of scale in pulping operations |
FI96786B (en) * | 1994-10-24 | 1996-05-15 | Tampella Power Oy | A method for reducing fouling of the thermal surfaces of a sulphate pulp mill evaporator |
-
1997
- 1997-07-11 FI FI972954A patent/FI972954A/en unknown
-
1998
- 1998-07-09 WO PCT/FI1998/000580 patent/WO1999002771A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
FI972954A0 (en) | 1997-07-11 |
WO1999002771A1 (en) | 1999-01-21 |
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