ATE277222T1 - Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien - Google Patents

Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien

Info

Publication number
ATE277222T1
ATE277222T1 AT00913202T AT00913202T ATE277222T1 AT E277222 T1 ATE277222 T1 AT E277222T1 AT 00913202 T AT00913202 T AT 00913202T AT 00913202 T AT00913202 T AT 00913202T AT E277222 T1 ATE277222 T1 AT E277222T1
Authority
AT
Austria
Prior art keywords
chemicals
recovery
chemical
liganocellulosic
dissioning
Prior art date
Application number
AT00913202T
Other languages
English (en)
Inventor
Lars Stigsson
Original Assignee
Kiram 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 Kiram Ab filed Critical Kiram Ab
Application granted granted Critical
Publication of ATE277222T1 publication Critical patent/ATE277222T1/de

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
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0057—Oxidation of liquors, e.g. in order to reduce the losses of sulfur compounds, followed by evaporation or combustion if the liquor in question is a black liquor
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/08—Pretreatment of the finely-divided materials before digesting with oxygen-generating 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/10—Physical methods for facilitating impregnation
    • 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
    • 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
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/26—Multistage processes
    • D21C3/263—Multistage processes at least one stage being in presence of oxygen
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AT00913202T 1999-02-15 2000-02-14 Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien ATE277222T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9900191 1999-02-15
PCT/SE2000/000288 WO2000047812A1 (en) 1999-02-15 2000-02-14 Process for oxygen pulping of lignocellulosic material and recovery of pulping chemicals

Publications (1)

Publication Number Publication Date
ATE277222T1 true ATE277222T1 (de) 2004-10-15

Family

ID=20414187

Family Applications (1)

Application Number Title Priority Date Filing Date
AT00913202T ATE277222T1 (de) 1999-02-15 2000-02-14 Verfahren zum sauerstoff-aufschluss von liganocellulosischen materialien und rückgewinnung von aufschlusschemikalien

Country Status (9)

Country Link
US (1) US6770168B1 (de)
EP (1) EP1161592B1 (de)
JP (1) JP2002536563A (de)
CN (1) CN1213197C (de)
AT (1) ATE277222T1 (de)
BR (1) BR0008237B1 (de)
CA (1) CA2356444C (de)
DE (1) DE60014045D1 (de)
WO (1) WO2000047812A1 (de)

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Also Published As

Publication number Publication date
EP1161592A1 (de) 2001-12-12
CA2356444A1 (en) 2000-08-17
JP2002536563A (ja) 2002-10-29
WO2000047812A1 (en) 2000-08-17
DE60014045D1 (de) 2004-10-28
BR0008237A (pt) 2001-11-06
CN1213197C (zh) 2005-08-03
EP1161592B1 (de) 2004-09-22
US6770168B1 (en) 2004-08-03
CA2356444C (en) 2009-12-15
CN1340121A (zh) 2002-03-13
BR0008237B1 (pt) 2010-12-28

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