ATE88767T1 - METHOD AND APPARATUS FOR PROCESSING CALCIUM CARBONATE SUSPENSION AS RESIDUE FROM PAPER MAKING. - Google Patents
METHOD AND APPARATUS FOR PROCESSING CALCIUM CARBONATE SUSPENSION AS RESIDUE FROM PAPER MAKING.Info
- Publication number
- ATE88767T1 ATE88767T1 AT89311391T AT89311391T ATE88767T1 AT E88767 T1 ATE88767 T1 AT E88767T1 AT 89311391 T AT89311391 T AT 89311391T AT 89311391 T AT89311391 T AT 89311391T AT E88767 T1 ATE88767 T1 AT E88767T1
- Authority
- AT
- Austria
- Prior art keywords
- mesa
- residue
- calcium carbonate
- paper making
- carbonate suspension
- Prior art date
Links
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 4
- 229910000019 calcium carbonate Inorganic materials 0.000 title abstract 3
- 239000000725 suspension Substances 0.000 title 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 abstract 2
- 235000010216 calcium carbonate Nutrition 0.000 abstract 2
- 239000000779 smoke Substances 0.000 abstract 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 abstract 1
- 235000011941 Tilia x europaea Nutrition 0.000 abstract 1
- 239000000292 calcium oxide Substances 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 abstract 1
- 230000001143 conditioned effect Effects 0.000 abstract 1
- 239000004571 lime Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 1
- 229910021653 sulphate 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
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Paper (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
- Fertilizers (AREA)
Abstract
In a method and using an apparatus for carrying out the method for the treatment of calcium carbonate slurry ("mesa"), which is a re-utilizable residue from the causticisation of sodium carbonate with burnt lime in the manufacture of paper after the sulphate process, the lime sludge or "mesa cake" is conditioned in a mixer (21) with dry, powderous raw material (CaCO3) to a loose, moist mesa pulp which is fed to the lower end of a riser pipe (17) constructed as a flash duct wherein the mesa pulp is suspended, dried and pulverized by means of hot smoke gas from a kiln (1), whereupon the dry, powderous product is separated from the smoke gas in a separator (18) and fed to the kiln (1) for further treatment in same.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE8804160A SE460728B (en) | 1988-11-17 | 1988-11-17 | PROCEDURE AND EQUIPMENT IN TREATMENT OF MESA |
| EP89311391A EP0369650B1 (en) | 1988-11-17 | 1989-11-02 | Method and apparatus for the treatment of calcium carbonate slurry as residue from the manufacture of paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ATE88767T1 true ATE88767T1 (en) | 1993-05-15 |
Family
ID=20373977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT89311391T ATE88767T1 (en) | 1988-11-17 | 1989-11-02 | METHOD AND APPARATUS FOR PROCESSING CALCIUM CARBONATE SUSPENSION AS RESIDUE FROM PAPER MAKING. |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0369650B1 (en) |
| JP (1) | JPH0319987A (en) |
| AT (1) | ATE88767T1 (en) |
| BR (1) | BR8905827A (en) |
| CA (1) | CA2003112A1 (en) |
| DE (1) | DE68906243T2 (en) |
| ES (1) | ES2055097T3 (en) |
| FI (1) | FI93751B (en) |
| PT (1) | PT92341A (en) |
| SE (1) | SE460728B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5213496A (en) * | 1989-07-03 | 1993-05-25 | A. Ahlstrom Corporation | Feeding system for a lime reburning kiln |
| FI87245C (en) * | 1989-07-03 | 1992-12-10 | Ahlstroem Oy | INMATNINGSSYSTEM FOER MESAUGN |
| GB9606638D0 (en) * | 1996-03-29 | 1996-06-05 | Ecc Int Ltd | Treatment of solid containing material derived from effluent |
| FI107057B (en) * | 1996-07-05 | 2001-05-31 | Andritz Ahlstrom Oy | Mesa Input Method |
| US20020079075A1 (en) | 1998-09-04 | 2002-06-27 | Imerys Minerals Limited | Treatment of solid containing material derived from effluent |
| US6348128B1 (en) | 1998-06-01 | 2002-02-19 | U.S. Borax Inc. | Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition |
| US6294048B1 (en) * | 1998-06-01 | 2001-09-25 | U.S. Borax Inc. | Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate |
| JP4338744B2 (en) | 2007-03-30 | 2009-10-07 | セイコークロック株式会社 | Karakuri Clock |
| DE102011014348A1 (en) | 2011-03-18 | 2014-06-18 | Ecoloop Gmbh | Process for the continuous production of precipitated calcium carbonate |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3020881C2 (en) * | 1980-06-02 | 1984-08-09 | Krupp Polysius Ag, 4720 Beckum | Process and plant for the production of sintered magnesite from magnesium hydroxide |
| FI73755C (en) * | 1985-11-22 | 1987-11-09 | Ekono Oy | FOERFARANDE FOER KAUSTICERING AV EN ALKALIKARBONATHALTIG VATTENLOESNING. |
-
1988
- 1988-11-17 SE SE8804160A patent/SE460728B/en not_active IP Right Cessation
-
1989
- 1989-11-02 ES ES89311391T patent/ES2055097T3/en not_active Expired - Lifetime
- 1989-11-02 DE DE8989311391T patent/DE68906243T2/en not_active Revoked
- 1989-11-02 AT AT89311391T patent/ATE88767T1/en not_active IP Right Cessation
- 1989-11-02 EP EP89311391A patent/EP0369650B1/en not_active Revoked
- 1989-11-16 CA CA002003112A patent/CA2003112A1/en not_active Abandoned
- 1989-11-16 FI FI895468A patent/FI93751B/en not_active IP Right Cessation
- 1989-11-17 BR BR898905827A patent/BR8905827A/en not_active IP Right Cessation
- 1989-11-17 JP JP1299488A patent/JPH0319987A/en active Pending
- 1989-11-17 PT PT92341A patent/PT92341A/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| BR8905827A (en) | 1990-06-12 |
| EP0369650A2 (en) | 1990-05-23 |
| PT92341A (en) | 1990-05-31 |
| FI895468A0 (en) | 1989-11-16 |
| EP0369650B1 (en) | 1993-04-28 |
| DE68906243T2 (en) | 1993-08-12 |
| DE68906243D1 (en) | 1993-06-03 |
| EP0369650A3 (en) | 1991-05-29 |
| FI93751B (en) | 1995-02-15 |
| JPH0319987A (en) | 1991-01-29 |
| SE8804160D0 (en) | 1988-11-17 |
| CA2003112A1 (en) | 1990-05-17 |
| ES2055097T3 (en) | 1994-08-16 |
| SE460728B (en) | 1989-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| UEP | Publication of translation of european patent specification | ||
| RZN | Patent revoked |