FI923255A0 - Foerfarande och anordning foer fram- staellning av massa. - Google Patents

Foerfarande och anordning foer fram- staellning av massa.

Info

Publication number
FI923255A0
FI923255A0 FI923255A FI923255A FI923255A0 FI 923255 A0 FI923255 A0 FI 923255A0 FI 923255 A FI923255 A FI 923255A FI 923255 A FI923255 A FI 923255A FI 923255 A0 FI923255 A0 FI 923255A0
Authority
FI
Finland
Prior art keywords
black liquor
treatment vessel
withdrawn
passed
digester
Prior art date
Application number
FI923255A
Other languages
English (en)
Other versions
FI923255A (fi
Inventor
Kaj Henricson
Original Assignee
Kamyr Inc
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 Kamyr Inc filed Critical Kamyr Inc
Publication of FI923255A0 publication Critical patent/FI923255A0/fi
Publication of FI923255A publication Critical patent/FI923255A/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
    • D21C3/24—Continuous 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • 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
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)

Landscapes

  • Paper (AREA)
  • Lubricants (AREA)
  • Resistance Heating (AREA)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Steroid Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Auxiliary Devices For Music (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
FI923255A 1991-08-14 1992-07-16 Foerfarande och anordning foer framstaellning av massa FI923255A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/744,506 US5213662A (en) 1991-08-14 1991-08-14 Treatment of chips with high temperature black liquor to reduce black liquor viscosity

Publications (2)

Publication Number Publication Date
FI923255A0 true FI923255A0 (fi) 1992-07-16
FI923255A FI923255A (fi) 1993-02-15

Family

ID=24992959

Family Applications (1)

Application Number Title Priority Date Filing Date
FI923255A FI923255A (fi) 1991-08-14 1992-07-16 Foerfarande och anordning foer framstaellning av massa

Country Status (13)

Country Link
US (2) US5213662A (fi)
EP (1) EP0527294B1 (fi)
JP (1) JPH05195462A (fi)
AT (1) ATE115659T1 (fi)
AU (1) AU1492392A (fi)
BR (1) BR9203126A (fi)
CA (1) CA2068165A1 (fi)
DE (1) DE69200909D1 (fi)
ES (1) ES2067267T3 (fi)
FI (1) FI923255A (fi)
MX (1) MX9204014A (fi)
NO (1) NO923169L (fi)
ZA (1) ZA922866B (fi)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT398588B (de) * 1992-12-02 1994-12-27 Voest Alpine Ind Anlagen Verfahren zur herstellung von viskosezellstoffen
US5489363A (en) * 1993-05-04 1996-02-06 Kamyr, Inc. Pulping with low dissolved solids for improved pulp strength
SE502039C2 (sv) * 1993-12-29 1995-07-24 Kvaerner Pulping Tech Sätt och anordning för kontinuerlig kokning av massa
US5824187A (en) * 1993-12-29 1998-10-20 Kvaerner Pulping Ab Method for the continuous cooking of pulp
FI103898B1 (fi) * 1994-01-24 1999-10-15 Sunds Defibrator Pori Oy Menetelmä prehydrolysoidun sellun ja/tai sellumassan tuottamiseksi
SE9401769L (sv) * 1994-05-24 1995-11-25 Nils Mannbro Flisimpregnering vid pappersmassakokning med sulfidiskt alkali
US5925216A (en) * 1994-11-15 1999-07-20 Kvaerner Pulping Ab Method of continuous pulping in a digester with high black liquor usage in the impregnation stage
SE502510C2 (sv) * 1994-11-15 1995-11-06 Kvaerner Pulping Tech Svartlutsimpregnering i enkärlshydraulkokare
US5635027A (en) * 1995-04-03 1997-06-03 North Carolina State University Method of reducing the viscosity of a black liquor
SE505528C2 (sv) * 1995-04-28 1997-09-15 Kvaerner Pulping Tech Impregnering av flis med het svartlut i ett kontinuerligt enkärlssystem
US6248208B1 (en) 1995-06-02 2001-06-19 Andritz-Ahlstrom Inc. Pretreatment of chips before cooking
SE506703C2 (sv) 1995-07-12 1998-02-02 Kvaerner Pulping Tech Impregnering av fibermaterial i medström vid kontinuerlig kokning
US5658428A (en) * 1995-10-19 1997-08-19 Kvaerner Pulping Technologies Ab Method for impregnation in a single-vessel hydraulic digester
US5736006A (en) * 1996-10-10 1998-04-07 Ahlstrom Machinery Inc. Method and apparatus for pulping with controlled heating to improve delignification and pulp strength
US6159336A (en) * 1997-08-07 2000-12-12 Kvaerner Pulping Ab Method and device for the continuous cooking of pulp
US5985096A (en) * 1997-09-23 1999-11-16 Ahlstrom Machinery Inc. Vertical pulping digester having substantially constant diameter
SE0200185L (sv) * 2002-01-24 2002-12-10 Kvaerner Pulping Tech Förfarande för att öka värmeekonomin i kokarsystemet vid kontinuerlig kokning
SE0602675L (sv) * 2006-12-13 2007-09-18 Metso Fiber Karlstad Ab Metod för att energieffektivt producera cellulosamassa i ett kontinuerligt kokeri
US8444809B2 (en) * 2007-06-25 2013-05-21 Andritz Inc. Method and system for direct contact of hot liquor with wood chips in transfer circulation
US20100263813A1 (en) * 2009-04-21 2010-10-21 Andritz Inc. Green liquor pretreatment of lignocellulosic material
RU2555655C2 (ru) * 2009-11-24 2015-07-10 Андритц Инк. Способ и система для варки тонкой щепы в варочном котле
SE539449C2 (en) * 2015-11-16 2017-09-26 Valmet Oy Method for heating cellulosic material to full cooking temperature in digesters

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE305582B (fi) * 1967-09-18 1968-10-28 Kamyr Ab
SE354302B (fi) * 1972-03-21 1973-03-05 Kamyr Ab
FI75615C (fi) * 1985-11-29 1991-08-26 Ahlstroem Oy Foerfarande foer saenkning av svartlutens viskositet.
SE463316B (sv) * 1988-01-14 1990-11-05 Ahlstroem Foeretagen Foerfarande och anordning foer indunstning av avlut i samband med kokning av cellulosahaltigt fibermaterial i en kontinuerlig kokare
SE468053B (sv) * 1988-12-20 1992-10-26 Kamyr Ab Saett vid kontinuerlig uppslutningskokning av cellulosahaltigt fibermaterial
US4953607A (en) * 1989-02-17 1990-09-04 A. Ahlstrom Multistage evaporating system
US5053108A (en) * 1989-06-28 1991-10-01 Kamyr Ab High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips
AU1765892A (en) * 1991-02-06 1992-09-07 A. Ahlstrom Corporation A method of recovering energy and chemicals from black liquor

Also Published As

Publication number Publication date
BR9203126A (pt) 1993-03-30
US5213662A (en) 1993-05-25
MX9204014A (es) 1993-02-01
DE69200909D1 (de) 1995-01-26
FI923255A (fi) 1993-02-15
ZA922866B (en) 1992-12-30
NO923169L (no) 1993-02-15
AU1492392A (en) 1993-02-18
US5346591A (en) 1994-09-13
NO923169D0 (no) 1992-08-13
ES2067267T3 (es) 1995-03-16
ATE115659T1 (de) 1994-12-15
EP0527294A1 (en) 1993-02-17
EP0527294B1 (en) 1994-12-14
CA2068165A1 (en) 1993-02-15
JPH05195462A (ja) 1993-08-03

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US5203963A (en) Continuous treatment of small chips
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Legal Events

Date Code Title Description
HC Name/ company changed in application

Owner name: AHLSTROM MACHINERY INC.