EP0369650A3 - Method and apparatus for the treatment of calcium carbonate slurry as residue from the manufacture of paper - Google Patents

Method and apparatus for the treatment of calcium carbonate slurry as residue from the manufacture of paper Download PDF

Info

Publication number
EP0369650A3
EP0369650A3 EP19890311391 EP89311391A EP0369650A3 EP 0369650 A3 EP0369650 A3 EP 0369650A3 EP 19890311391 EP19890311391 EP 19890311391 EP 89311391 A EP89311391 A EP 89311391A EP 0369650 A3 EP0369650 A3 EP 0369650A3
Authority
EP
European Patent Office
Prior art keywords
mesa
treatment
residue
paper
manufacture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890311391
Other languages
German (de)
French (fr)
Other versions
EP0369650A2 (en
EP0369650B1 (en
Inventor
Jorgen Theil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FLSmidth and Co AS
Original Assignee
FLSmidth and Co AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20373977&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0369650(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by FLSmidth and Co AS filed Critical FLSmidth and Co AS
Priority to AT89311391T priority Critical patent/ATE88767T1/en
Publication of EP0369650A2 publication Critical patent/EP0369650A2/en
Publication of EP0369650A3 publication Critical patent/EP0369650A3/en
Application granted granted Critical
Publication of EP0369650B1 publication Critical patent/EP0369650B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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
    • D21C11/0064—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

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.
EP89311391A 1988-11-17 1989-11-02 Method and apparatus for the treatment of calcium carbonate slurry as residue from the manufacture of paper Revoked EP0369650B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89311391T ATE88767T1 (en) 1988-11-17 1989-11-02 METHOD AND APPARATUS FOR PROCESSING CALCIUM CARBONATE SUSPENSION AS RESIDUE FROM PAPER MAKING.

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
SE8804160 1988-11-17

Publications (3)

Publication Number Publication Date
EP0369650A2 EP0369650A2 (en) 1990-05-23
EP0369650A3 true EP0369650A3 (en) 1991-05-29
EP0369650B1 EP0369650B1 (en) 1993-04-28

Family

ID=20373977

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89311391A Revoked 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

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)

* Cited by examiner, † Cited by third party
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 Honey feeding system
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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041113A2 (en) * 1980-06-02 1981-12-09 Krupp Polysius Ag Method and apparatus for the manufacture of dead-burned magnesia from magnesium hydroxide
WO1987003314A1 (en) * 1985-11-22 1987-06-04 Ekono Oy A process for causticizing of an aqueous solution containing alkali carbonate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041113A2 (en) * 1980-06-02 1981-12-09 Krupp Polysius Ag Method and apparatus for the manufacture of dead-burned magnesia from magnesium hydroxide
WO1987003314A1 (en) * 1985-11-22 1987-06-04 Ekono Oy A process for causticizing of an aqueous solution containing alkali carbonate

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
TAPPI. vol. 60, no. 11, November 1977, ATLANTA US pages 111 - 115; L.M.BINGHAM et al.: "The modern recausticizing and lime calcining system." *

Also Published As

Publication number Publication date
SE8804160A (en) 1988-11-17
DE68906243D1 (en) 1993-06-03
SE8804160D0 (en) 1988-11-17
BR8905827A (en) 1990-06-12
EP0369650A2 (en) 1990-05-23
FI895468A0 (en) 1989-11-16
DE68906243T2 (en) 1993-08-12
ATE88767T1 (en) 1993-05-15
SE460728B (en) 1989-11-13
PT92341A (en) 1990-05-31
CA2003112A1 (en) 1990-05-17
ES2055097T3 (en) 1994-08-16
JPH0319987A (en) 1991-01-29
EP0369650B1 (en) 1993-04-28
FI93751B (en) 1995-02-15

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