PT852272E - Processo de recuperacao numa fabrica de pasta - Google Patents
Processo de recuperacao numa fabrica de pastaInfo
- Publication number
- PT852272E PT852272E PT97203861T PT97203861T PT852272E PT 852272 E PT852272 E PT 852272E PT 97203861 T PT97203861 T PT 97203861T PT 97203861 T PT97203861 T PT 97203861T PT 852272 E PT852272 E PT 852272E
- Authority
- PT
- Portugal
- Prior art keywords
- potassium
- recovery boiler
- recovery
- spent liquor
- chloride
- Prior art date
Links
- 238000011084 recovery Methods 0.000 title abstract 7
- 238000000034 method Methods 0.000 title abstract 3
- 239000000428 dust Substances 0.000 abstract 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 3
- 229910052700 potassium Inorganic materials 0.000 abstract 3
- 239000011591 potassium Substances 0.000 abstract 3
- 239000012716 precipitator Substances 0.000 abstract 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 2
- 238000004537 pulping Methods 0.000 abstract 2
- 239000000126 substance Substances 0.000 abstract 2
- 229910001410 inorganic ion Inorganic materials 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229910001414 potassium ion Inorganic materials 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0042—Fractionating or concentration of spent liquors by special methods
- D21C11/005—Treatment of liquors with ion-exchangers
-
- 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
- D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
- D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
- D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
Landscapes
- Paper (AREA)
- Treatment Of Water By Ion Exchange (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9700012A SE9700012D0 (sv) | 1997-01-03 | 1997-01-03 | Recovery process in a pulp mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PT852272E true PT852272E (pt) | 2002-08-30 |
Family
ID=20405353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT97203861T PT852272E (pt) | 1997-01-03 | 1997-12-10 | Processo de recuperacao numa fabrica de pasta |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0852272B1 (de) |
| AT (1) | ATE215143T1 (de) |
| CA (1) | CA2225927C (de) |
| DE (1) | DE69711355T2 (de) |
| ES (1) | ES2171832T3 (de) |
| PT (1) | PT852272E (de) |
| SE (1) | SE9700012D0 (de) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015010179A1 (en) * | 2013-07-25 | 2015-01-29 | Noram Engineering And Constructors Ltd. | Method of reducing chloride and potassium ion concentrations in a pulp mill chemical recovery system |
| SE1451569A1 (sv) * | 2014-12-17 | 2015-12-01 | Aprotech Engineering Ab | Process for production of a fertilizer comprising potassium sulfate |
| FI129103B (fi) * | 2017-04-28 | 2021-07-15 | Andritz Oy | Menetelmä soodakattilan lentotuhkan käsittelemiseksi |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3684672A (en) * | 1969-08-07 | 1972-08-15 | Mitsubishi Heavy Ind Ltd | Process for paper manufacture |
| US5352332A (en) * | 1991-01-28 | 1994-10-04 | Maples Gerald E | Process for recycling bleach plant filtrate |
| SE9202419D0 (sv) * | 1992-08-24 | 1992-08-24 | Eka Nobel Ab | Reduction of chloride in pulping chemical recovery systems |
| SE9502583D0 (sv) * | 1995-07-12 | 1995-07-12 | Eka Chemicals Ab | Leaching process |
-
1997
- 1997-01-03 SE SE9700012A patent/SE9700012D0/xx unknown
- 1997-12-10 ES ES97203861T patent/ES2171832T3/es not_active Expired - Lifetime
- 1997-12-10 AT AT97203861T patent/ATE215143T1/de active
- 1997-12-10 EP EP97203861A patent/EP0852272B1/de not_active Expired - Lifetime
- 1997-12-10 DE DE69711355T patent/DE69711355T2/de not_active Expired - Lifetime
- 1997-12-10 PT PT97203861T patent/PT852272E/pt unknown
- 1997-12-29 CA CA002225927A patent/CA2225927C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2225927A1 (en) | 1998-07-03 |
| ATE215143T1 (de) | 2002-04-15 |
| SE9700012D0 (sv) | 1997-01-03 |
| ES2171832T3 (es) | 2002-09-16 |
| CA2225927C (en) | 2002-04-09 |
| DE69711355T2 (de) | 2002-10-31 |
| EP0852272B1 (de) | 2002-03-27 |
| EP0852272A1 (de) | 1998-07-08 |
| DE69711355D1 (de) | 2002-05-02 |
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