DE69704943D1 - Verfahren zur Imprägnierung und Kochung eines lignocellulosischem Materials - Google Patents

Verfahren zur Imprägnierung und Kochung eines lignocellulosischem Materials

Info

Publication number
DE69704943D1
DE69704943D1 DE69704943T DE69704943T DE69704943D1 DE 69704943 D1 DE69704943 D1 DE 69704943D1 DE 69704943 T DE69704943 T DE 69704943T DE 69704943 T DE69704943 T DE 69704943T DE 69704943 D1 DE69704943 D1 DE 69704943D1
Authority
DE
Germany
Prior art keywords
liquor
cooking
lignocellulosic material
impregnation
impregnating
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
DE69704943T
Other languages
English (en)
Inventor
Lars Stigsson
Mikael Lindstroem
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.)
Metso Fiber Karlstad AB
Original Assignee
Kvaerner Pulping AB
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 Kvaerner Pulping AB filed Critical Kvaerner Pulping AB
Application granted granted Critical
Publication of DE69704943D1 publication Critical patent/DE69704943D1/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
    • D21C3/222—Use of compounds accelerating the 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds
    • 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
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • 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
    • D21C11/12—Combustion of pulp liquors
    • D21C11/125—Decomposition of the pulp liquors in reducing atmosphere or in the absence of oxidants, i.e. gasification or pyrolysis
    • 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
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
DE69704943T 1997-09-18 1997-11-20 Verfahren zur Imprägnierung und Kochung eines lignocellulosischem Materials Expired - Lifetime DE69704943D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703365A SE9703365D0 (sv) 1997-09-18 1997-09-18 Method in connection with impregnation and digestion of lignocelulosic material

Publications (1)

Publication Number Publication Date
DE69704943D1 true DE69704943D1 (de) 2001-06-28

Family

ID=20408287

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69704943T Expired - Lifetime DE69704943D1 (de) 1997-09-18 1997-11-20 Verfahren zur Imprägnierung und Kochung eines lignocellulosischem Materials

Country Status (5)

Country Link
US (1) US6143130A (de)
EP (1) EP0903436B1 (de)
AT (1) ATE201462T1 (de)
DE (1) DE69704943D1 (de)
SE (1) SE9703365D0 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1245721B2 (de) * 1999-06-15 2012-11-21 Kawasaki Kasei Chemicals Ltd. Zellstoffaufschlussverfahren
SE0004185D0 (sv) * 2000-11-15 2000-11-15 Nykomb Synergetics B V New process
US6464827B1 (en) * 2000-11-28 2002-10-15 Praxair Technology, Inc. Method of digesting wood with an alkaline liquor by adding an acidic agent to precipitate dissociated lignin
FI120361B (fi) * 2003-12-31 2009-09-30 Gl & V Finance Hungary Kft Eräkeittomenetelmä kraftmassan valmistamiseksi
FI122841B (fi) * 2004-10-04 2012-07-31 Metso Paper Inc Menetelmä ja laitteisto selluloosamassan valmistamiseksi
FI120547B (fi) * 2004-10-04 2009-11-30 Metso Paper Inc Alkalinen keittomenetelmä ja laitteisto massan valmistamiseksi
US7828930B2 (en) * 2007-11-20 2010-11-09 International Paper Company Use of polysulfide in modified cooking
US20100159522A1 (en) * 2008-12-19 2010-06-24 E.I. De Pont De Nemours And Company Organosolv and ozone treatment of biomass to enhance enzymatic saccharification
US8216809B2 (en) 2008-12-19 2012-07-10 E I Du Pont De Nemours And Company Organic solvent pretreatment of biomass to enhance enzymatic saccharification
FI127420B (fi) * 2011-06-23 2018-05-31 Andritz Oy Menetelmä selluloosamassan valmistamiseksi
FI129114B (en) * 2012-03-12 2021-07-15 Upm Kymmene Corp Method and device for treating liquid streams in a cellulose factory
AR091998A1 (es) 2012-05-03 2015-03-18 Annikki Gmbh Procedimiento de preparacion de celulosa con baja concentracion de lignina
FI20135105L (fi) * 2013-02-04 2014-08-05 Andritz Oy Menetelmä kemikaalien ja sivutuotteiden talteenottamiseksi korkean sulfiditeetin keittolipeistä
FI129362B (fi) * 2017-05-16 2021-12-31 Andritz Oy Menetelmä kemiallisen massan tuottamiseksi

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639987A (en) * 1947-07-09 1953-05-26 Ass Pulp & Paper Mills Two-stage pulping process
US3331732A (en) * 1962-12-17 1967-07-18 Mo Och Domsjoe Ab Method of removing hydrogen sulfide from an aqueous solution of alkali sulfide
US3567572A (en) * 1967-09-06 1971-03-02 Pulp Paper Res Inst Polysulfide liquor impregnation of lignocellulose materials in a multistage pulping process
US3526666A (en) * 1968-01-12 1970-09-01 Ferro Corp Synthesis of 2-hydroxy-4-alkoxybenzophenones
US3874991A (en) * 1968-08-23 1975-04-01 Westvaco Corp Polysulfide impregnation of lignocellulosic materials in a continuous digester
US3664919A (en) * 1969-12-09 1972-05-23 Pulp Paper Res Inst Vapor phase polysulphide liquid pulping of lignocellulosic materials
US3650888A (en) * 1970-06-11 1972-03-21 Combustion Eng Pollution controlled polysulfide recovery process
US4024229A (en) * 1970-11-06 1977-05-17 The Mead Corporation Production of polysulfide with PTFE coated catalyst
CA1013903A (en) * 1973-06-04 1977-07-19 Union Camp Corporation Method of pulping with polysulfide
SE448173B (sv) * 1985-06-03 1987-01-26 Croon Inventor Ab Forfarande for utvinning av kemikalier fran cellulosaavlut genom pyrolys
JPS62247812A (ja) * 1986-04-18 1987-10-28 Chiyoda Chem Eng & Constr Co Ltd 加圧式上向流深層濾過方法及びそれに用いる濾過器
NO920692L (no) * 1991-05-24 1992-11-25 Kamyr Inc Behandling av organiske svovelgasser, spesielt i kraftmasse systemer og prosesser
US5234546A (en) * 1991-09-10 1993-08-10 Kamyr, Inc. Polysulfide production in white liquor
SE468600B (sv) * 1991-12-16 1993-02-15 Chemrec Ab Saett att framstaella koklut med hoeg sulfiditet
SE500263C2 (sv) * 1993-03-11 1994-05-24 Chemrec Ab Process för separation av svavelföreningar ur en koldioxid- och vätesulfidinnehållande gasström
SE503455C2 (sv) * 1993-09-27 1996-06-17 Kvaerner Pulping Tech Beredning av sulfitinnehållande kokvätska och användning av kokvätskan för förimpregnering
SE506702C2 (sv) * 1996-04-30 1998-02-02 Kvaerner Pulping Tech Förbehandling av fibermaterial med in situ bildad vätesulfid

Also Published As

Publication number Publication date
EP0903436B1 (de) 2001-05-23
US6143130A (en) 2000-11-07
SE9703365D0 (sv) 1997-09-18
ATE201462T1 (de) 2001-06-15
EP0903436A3 (de) 1999-09-01
EP0903436A2 (de) 1999-03-24

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Legal Events

Date Code Title Description
8332 No legal effect for de