SE8307153L - PROCEDURE FOR TREATMENT OF Lime Sludge, which is produced during the causticization process in sulphate cellulose paper use - Google Patents

PROCEDURE FOR TREATMENT OF Lime Sludge, which is produced during the causticization process in sulphate cellulose paper use

Info

Publication number
SE8307153L
SE8307153L SE8307153A SE8307153A SE8307153L SE 8307153 L SE8307153 L SE 8307153L SE 8307153 A SE8307153 A SE 8307153A SE 8307153 A SE8307153 A SE 8307153A SE 8307153 L SE8307153 L SE 8307153L
Authority
SE
Sweden
Prior art keywords
treatment
lime slurry
conveyor
residual lime
produced during
Prior art date
Application number
SE8307153A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE8307153D0 (en
Inventor
P Heitto
J Haartti
J-J Helsto
Original Assignee
Larox Ag
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
Application filed by Larox Ag filed Critical Larox Ag
Publication of SE8307153D0 publication Critical patent/SE8307153D0/en
Publication of SE8307153L publication Critical patent/SE8307153L/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/18—Carbonates
    • C01F11/185—After-treatment, e.g. grinding, purification, conversion of crystal morphology
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)

Abstract

Process for the treatment of the residual lime slurry formed during the causticisation reaction in a plant for the manufacture of sulphate cellulose, before being calcined in a furnace, in which the residual lime slurry is separated by filtration of the white liquor produced during the causticisation reaction, then washed and dried to a solids content which is required in the calcination stage, characterised in that the treatment is carried out in a filter press and in that, in a first stage, the white liquor is separated from the residual lime slurry suspension 1 carried on a dewatering conveyor 3, after which the residual lime slurry cake formed on the conveyor is washed, the slurry washed on the conveyor is then predried in a second compression stage and, finally, the residual lime slurry undergoes a final drying with compressed air and is removed from the conveyor. <IMAGE>
SE8307153A 1982-12-28 1983-12-23 PROCEDURE FOR TREATMENT OF Lime Sludge, which is produced during the causticization process in sulphate cellulose paper use SE8307153L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI824487A FI65455B (en) 1982-12-28 1982-12-28 FOERFARANDE FOER BEHANDLING AV MESA UPPKOMMEN I EN KAUSTICERINGSPROCESS I EN SULFATCELLULOSAFABRIK

Publications (2)

Publication Number Publication Date
SE8307153D0 SE8307153D0 (en) 1983-12-23
SE8307153L true SE8307153L (en) 1984-06-29

Family

ID=8516525

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8307153A SE8307153L (en) 1982-12-28 1983-12-23 PROCEDURE FOR TREATMENT OF Lime Sludge, which is produced during the causticization process in sulphate cellulose paper use

Country Status (4)

Country Link
JP (1) JPS59136110A (en)
FI (1) FI65455B (en)
FR (1) FR2538424A1 (en)
SE (1) SE8307153L (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI91005C (en) * 1989-01-26 1994-04-25 Ahlstroem Oy Method and apparatus for heat treatment of lime
ES2048091B1 (en) * 1992-02-03 1994-10-01 Ahlstroem Oy METHOD AND APPARATUS FOR HEAT SLUDGE HEAT TREATMENT:
US5489363A (en) * 1993-05-04 1996-02-06 Kamyr, Inc. Pulping with low dissolved solids for improved pulp strength
FI105933B (en) * 1995-12-20 2000-10-31 Larox Ag A process for preparing white liquor
BRPI1102992A2 (en) * 2011-06-14 2013-11-19 Ecofill Espec Em Tecnologia De Transf De Residuos Ltda PRECIPITATED CALCIUM CARBONATE OBTAINING SYSTEM FROM CALCIUM CARBONATE SLUDGE WASTE; WASTE RECOVERY, BENEFIT AND PURIFICATION PROCESS Calcium Carbonate Sludge and Resulting Precipitated Calcium Carbonate Product

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1461500B1 (en) * 1963-10-15 1970-04-02 Uk Ni I Ki Khim Mash Floor pressure filter
GB1500697A (en) * 1974-04-10 1978-02-08 English Clays Lovering Pochin Particulate solid materials

Also Published As

Publication number Publication date
FI65455B (en) 1984-01-31
SE8307153D0 (en) 1983-12-23
FR2538424A1 (en) 1984-06-29
JPS59136110A (en) 1984-08-04
FI824487A0 (en) 1982-12-28

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