FI972954L - Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi - Google Patents
Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi Download PDFInfo
- Publication number
- FI972954L FI972954L FI972954A FI972954A FI972954L FI 972954 L FI972954 L FI 972954L FI 972954 A FI972954 A FI 972954A FI 972954 A FI972954 A FI 972954A FI 972954 L FI972954 L FI 972954L
- Authority
- FI
- Finland
- Prior art keywords
- calcium
- production
- waste liquor
- treating waste
- sulphate pulp
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
- 229910021653 sulphate ion Inorganic materials 0.000 title 1
- 239000002699 waste material Substances 0.000 title 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 4
- 239000011575 calcium Substances 0.000 abstract 4
- 229910052791 calcium Inorganic materials 0.000 abstract 4
- 238000001704 evaporation Methods 0.000 abstract 4
- 239000002244 precipitate Substances 0.000 abstract 3
- 238000010411 cooking Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
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)
- Agricultural Chemicals And Associated Chemicals (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI972954A FI972954L (fi) | 1997-07-11 | 1997-07-11 | Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi |
| 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 FI972954L (fi) | 1997-07-11 | 1997-07-11 | Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI972954A0 FI972954A0 (fi) | 1997-07-11 |
| FI972954A7 FI972954A7 (fi) | 1999-01-12 |
| FI972954L true FI972954L (fi) | 1999-01-12 |
Family
ID=8549240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI972954A FI972954L (fi) | 1997-07-11 | 1997-07-11 | Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi |
Country Status (2)
| Country | Link |
|---|---|
| FI (1) | FI972954L (fi) |
| WO (1) | WO1999002771A1 (fi) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI981803A7 (fi) * | 1998-08-21 | 2000-02-22 | Andritz Oy | Menetelmä saostumien muodostumisen estämiseksi |
| FI110327B (fi) * | 1999-10-04 | 2002-12-31 | Metso Chemical Pulping Oy | Menetelmä sellumassan valmistamiseksi |
| SE524247C2 (sv) * | 2002-11-25 | 2004-07-13 | Kvaerner Pulping Tech | Metod vid produktion av grönlut |
| SE0602476L (sv) * | 2006-11-22 | 2007-08-21 | Metso Fiber Karlstad Ab | Metod för att återvinna värmeenergi från svartlut |
| EP2753750B1 (en) * | 2011-09-05 | 2019-03-06 | 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 (fi) * | ||||
| 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 (sv) * | 1985-06-06 | 1985-06-06 | Ahlstroem Foeretagen | Sett och apparatur for att deaktivera avlutar |
| CA1299322C (en) * | 1987-10-26 | 1992-04-28 | Larry A. Wilhelmsen | Apparatus and methods for reducing the formation of scale in pulping operations |
| FI96786B (fi) * | 1994-10-24 | 1996-05-15 | Tampella Power Oy | Menetelmä sulfaattiselluloosatehtaan haihduttamon lämpöpintojen likaantumisen vähentämiseksi |
-
1997
- 1997-07-11 FI FI972954A patent/FI972954L/fi unknown
-
1998
- 1998-07-09 WO PCT/FI1998/000580 patent/WO1999002771A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| FI972954A7 (fi) | 1999-01-12 |
| FI972954A0 (fi) | 1997-07-11 |
| WO1999002771A1 (en) | 1999-01-21 |
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