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FI981803L - Menetelmä saostumien muodostumisen estämiseksi - Google Patents

Menetelmä saostumien muodostumisen estämiseksi Download PDF

Info

Publication number
FI981803L
FI981803L FI981803A FI981803A FI981803L FI 981803 L FI981803 L FI 981803L FI 981803 A FI981803 A FI 981803A FI 981803 A FI981803 A FI 981803A FI 981803 L FI981803 L FI 981803L
Authority
FI
Finland
Prior art keywords
waste liquor
temperature
liquor flow
pulp
fibrous material
Prior art date
Application number
FI981803A
Other languages
English (en)
Swedish (sv)
Other versions
FI981803A0 (fi
FI981803A7 (fi
Inventor
Kaj Henricson
Erkki Kiiskilae
Original Assignee
Ahlstrom Machinery Oy
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 Ahlstrom Machinery Oy filed Critical Ahlstrom Machinery Oy
Priority to FI981803A priority Critical patent/FI981803A7/fi
Publication of FI981803A0 publication Critical patent/FI981803A0/fi
Priority to PCT/FI1999/000689 priority patent/WO2000011263A1/en
Publication of FI981803L publication Critical patent/FI981803L/fi
Publication of FI981803A7 publication Critical patent/FI981803A7/fi

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • 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
    • 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
    • D21C11/10—Concentrating spent liquor by evaporation
    • D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors

Landscapes

  • Paper (AREA)
  • Removal Of Specific Substances (AREA)
  • Processing Of Solid Wastes (AREA)
FI981803A 1998-08-21 1998-08-21 Menetelmä saostumien muodostumisen estämiseksi FI981803A7 (fi)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI981803A FI981803A7 (fi) 1998-08-21 1998-08-21 Menetelmä saostumien muodostumisen estämiseksi
PCT/FI1999/000689 WO2000011263A1 (en) 1998-08-21 1999-08-20 Method of preventing scaling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI981803A FI981803A7 (fi) 1998-08-21 1998-08-21 Menetelmä saostumien muodostumisen estämiseksi

Publications (3)

Publication Number Publication Date
FI981803A0 FI981803A0 (fi) 1998-08-21
FI981803L true FI981803L (fi) 2000-02-22
FI981803A7 FI981803A7 (fi) 2000-02-22

Family

ID=8552343

Family Applications (1)

Application Number Title Priority Date Filing Date
FI981803A FI981803A7 (fi) 1998-08-21 1998-08-21 Menetelmä saostumien muodostumisen estämiseksi

Country Status (2)

Country Link
FI (1) FI981803A7 (fi)
WO (1) WO2000011263A1 (fi)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI110327B (fi) * 1999-10-04 2002-12-31 Metso Chemical Pulping Oy Menetelmä sellumassan valmistamiseksi
SE0004049L (sv) * 2000-11-03 2001-11-05 Kvaerner Pulping Tech Kontinuerlig kokning av massa med avdrag av begagnad koklut dels från kokaren, dels från en efterföljande tryckdiffusör
US7241363B2 (en) * 2004-06-26 2007-07-10 International Paper Company Methods to decrease scaling in digester systems
PT2753750T (pt) * 2011-09-05 2019-06-06 Stora Enso Oyj Processo para tratar licor negro de folhosa e licor negro de folhosa tratado de acordo com o processo
US8986504B1 (en) 2013-10-25 2015-03-24 International Paper Company Digester apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5674359A (en) * 1995-02-08 1997-10-07 Ahlstrom Machinery Inc. Continuous cooking of cellulosic fibrous material with cold alkali impregnation
FI972954L (fi) * 1997-07-11 1999-01-12 Sunds Defibrator Pori Oy Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi

Also Published As

Publication number Publication date
FI981803A0 (fi) 1998-08-21
WO2000011263A1 (en) 2000-03-02
FI981803A7 (fi) 2000-02-22

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