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DE69200909D1 - Behandlung von Hackschnitzel mit Schwarzlauge. - Google Patents

Behandlung von Hackschnitzel mit Schwarzlauge.

Info

Publication number
DE69200909D1
DE69200909D1 DE69200909T DE69200909T DE69200909D1 DE 69200909 D1 DE69200909 D1 DE 69200909D1 DE 69200909 T DE69200909 T DE 69200909T DE 69200909 T DE69200909 T DE 69200909T DE 69200909 D1 DE69200909 D1 DE 69200909D1
Authority
DE
Germany
Prior art keywords
black liquor
treatment vessel
withdrawn
passed
digester
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.)
Expired - Lifetime
Application number
DE69200909T
Other languages
English (en)
Inventor
Kaj Henricson
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.)
Kamyr Inc
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
Application granted granted Critical
Publication of DE69200909D1 publication Critical patent/DE69200909D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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)
  • Ink Jet Recording Methods And Recording Media Thereof (AREA)
  • Lubricants (AREA)
  • Resistance Heating (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Auxiliary Devices For Music (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
DE69200909T 1991-08-14 1992-04-24 Behandlung von Hackschnitzel mit Schwarzlauge. Expired - Lifetime DE69200909D1 (de)

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 (1)

Publication Number Publication Date
DE69200909D1 true DE69200909D1 (de) 1995-01-26

Family

ID=24992959

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69200909T Expired - Lifetime DE69200909D1 (de) 1991-08-14 1992-04-24 Behandlung von Hackschnitzel mit Schwarzlauge.

Country Status (13)

Country Link
US (2) US5213662A (de)
EP (1) EP0527294B1 (de)
JP (1) JPH05195462A (de)
AT (1) ATE115659T1 (de)
AU (1) AU1492392A (de)
BR (1) BR9203126A (de)
CA (1) CA2068165A1 (de)
DE (1) DE69200909D1 (de)
ES (1) ES2067267T3 (de)
FI (1) FI923255A7 (de)
MX (1) MX9204014A (de)
NO (1) NO923169L (de)
ZA (1) ZA922866B (de)

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
SE502510C2 (sv) * 1994-11-15 1995-11-06 Kvaerner Pulping Tech Svartlutsimpregnering i enkärlshydraulkokare
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
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
SE529573C2 (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
US8641865B2 (en) * 2009-11-24 2014-02-04 Andritz Technology And Asset Management Gmbh Method and system for thin chip digester cooking
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 (de) * 1967-09-18 1968-10-28 Kamyr Ab
SE354302B (de) * 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
JPH06506733A (ja) * 1991-02-06 1994-07-28 アールストロム　マシナリイ　オサケ　ユキチュア 黒液からの化学物質及びエネルギー回収方法

Also Published As

Publication number Publication date
MX9204014A (es) 1993-02-01
NO923169L (no) 1993-02-15
ZA922866B (en) 1992-12-30
CA2068165A1 (en) 1993-02-15
JPH05195462A (ja) 1993-08-03
NO923169D0 (no) 1992-08-13
US5213662A (en) 1993-05-25
US5346591A (en) 1994-09-13
ES2067267T3 (es) 1995-03-16
AU1492392A (en) 1993-02-18
FI923255A7 (fi) 1993-02-15
BR9203126A (pt) 1993-03-30
FI923255A0 (fi) 1992-07-16
EP0527294B1 (de) 1994-12-14
EP0527294A1 (de) 1993-02-17
ATE115659T1 (de) 1994-12-15

Similar Documents

Publication Publication Date Title
DE69200909D1 (de) Behandlung von Hackschnitzel mit Schwarzlauge.
BR9003018A (pt) Metodo e aparelho para cozimento continuo de material fibroso celulosico cominuido para produzir pasta de papel
NO179918C (no) Fremgangsmåte og apparat for fremstilling av kraftmasse
JP3126763B2 (ja) 白液の導入に先立つ黒液による含浸
WO1991005103A3 (en) Displacement heating in continuous digesters
FI913160A0 (fi) Eräprosessi kraftmassan valmistamiseksi
US5203963A (en) Continuous treatment of small chips
NO172857C (no) Fremgangsmaate og innretning for kontinuerlig koking av findelt cellulosemateriale
SE0200185L (sv) Förfarande för att öka värmeekonomin i kokarsystemet vid kontinuerlig kokning
DE69520440D1 (de) Verfahren und vorrichtung zum kontinuierlichen herstellen von zellstoffbrei
SE8800100L (sv) Foerfarande och anordning foer indunstning av avlut i samband med kokning av cellulosahaltigt fibermaterial
SE9902745L (sv) Förfarande och anordning för kokning av massa
RU2138590C1 (ru) Способ получения целлюлозы для химической переработки

Legal Events

Date Code Title Description
8332 No legal effect for de