FI20030928A - Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi - Google Patents

Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi Download PDF

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Publication number
FI20030928A
FI20030928A FI20030928A FI20030928A FI20030928A FI 20030928 A FI20030928 A FI 20030928A FI 20030928 A FI20030928 A FI 20030928A FI 20030928 A FI20030928 A FI 20030928A FI 20030928 A FI20030928 A FI 20030928A
Authority
FI
Finland
Prior art keywords
sodium dithionite
mechanical pulp
sodium
manufacturing sodium
bleaching
Prior art date
Application number
FI20030928A
Other languages
English (en)
Swedish (sv)
Other versions
FI20030928A0 (fi
Inventor
Mikko Anttila
Risto Haemaelaeinen
Original Assignee
Kvaerner Power 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 Kvaerner Power Oy filed Critical Kvaerner Power Oy
Priority to FI20030928A priority Critical patent/FI20030928A/fi
Publication of FI20030928A0 publication Critical patent/FI20030928A0/fi
Priority to ES04397013T priority patent/ES2332313T3/es
Priority to AT04397013T priority patent/ATE440803T1/de
Priority to EP04397013A priority patent/EP1524241B1/en
Priority to DE602004022757T priority patent/DE602004022757D1/de
Publication of FI20030928A publication Critical patent/FI20030928A/fi

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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
    • D21C11/06—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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/64—Thiosulfates; Dithionites; Polythionates
    • C01B17/66—Dithionites or hydrosulfites (S2O42-)
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
  • Treating Waste Gases (AREA)
FI20030928A 2003-06-19 2003-06-19 Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi FI20030928A (fi)

Priority Applications (5)

Application Number Priority Date Filing Date Title
FI20030928A FI20030928A (fi) 2003-06-19 2003-06-19 Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi
ES04397013T ES2332313T3 (es) 2003-06-19 2004-06-17 Un metodo para producir ditionito sodico para ser usado en el blanqueamiento de pulpa mecanica.
AT04397013T ATE440803T1 (de) 2003-06-19 2004-06-17 Verfahren zur herstellung von natriumdithionit zum bleichen von mechanischer pulpe
EP04397013A EP1524241B1 (en) 2003-06-19 2004-06-17 A method for producing sodium dithionite to be used in the bleaching of mechanical pulp
DE602004022757T DE602004022757D1 (de) 2003-06-19 2004-06-17 Verfahren zur Herstellung von Natriumdithionit zum Bleichen von mechanischer Pulpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20030928A FI20030928A (fi) 2003-06-19 2003-06-19 Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi

Publications (2)

Publication Number Publication Date
FI20030928A0 FI20030928A0 (fi) 2003-06-19
FI20030928A true FI20030928A (fi) 2004-12-20

Family

ID=8566283

Family Applications (1)

Application Number Title Priority Date Filing Date
FI20030928A FI20030928A (fi) 2003-06-19 2003-06-19 Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi

Country Status (5)

Country Link
EP (1) EP1524241B1 (fi)
AT (1) ATE440803T1 (fi)
DE (1) DE602004022757D1 (fi)
ES (1) ES2332313T3 (fi)
FI (1) FI20030928A (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI121312B (fi) 2005-10-18 2010-09-30 Metso Power Oy Menetelmä savukaasujen käsittelemiseksi
FI121114B (fi) 2007-05-04 2010-07-15 Kemira Oyj Ditioniitin valmistusmenetelmä
FI123022B (fi) 2007-09-03 2012-10-15 Andritz Oy Menetelmä sellutehtaan hajukaasujen käsittelyssä
CN102530883B (zh) * 2011-12-14 2013-10-23 烟台市金河保险粉厂有限公司 一种保险粉合成方法
CN102556980B (zh) * 2011-12-14 2014-03-12 烟台金海化工有限公司 一种保险粉合成方法
CN104190209A (zh) * 2014-08-08 2014-12-10 烟台金海化工有限公司 一种保险粉制备过程中产生尾气的处理方法
CN113174771A (zh) * 2021-04-29 2021-07-27 玖龙纸业（东莞）有限公司 一种涂布白板纸浆料的三元漂白方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4680136A (en) * 1985-05-07 1987-07-14 Stora Kopparbergs Bergslags Ab Method for preparing compositions which can be used in the production of sodium dithionite; and the use of such compositions
DE3525377A1 (de) * 1985-07-16 1987-01-22 Gea Wiegand Gmbh Reinigung von so(pfeil abwaerts)2(pfeil abwaerts)-haltiger abluft
IN172015B (fi) * 1986-01-03 1993-03-13 Thiokol Morton Inc
FI92726C (fi) * 1991-12-02 1994-12-27 Ahlstroem Oy Menetelmä ja laite rikkidioksidin talteenottamiseksi sulfaattiselluloosatehtaan kemikaalikierrosta
FI95723C (fi) * 1992-11-10 1996-04-11 Lt Dynamics Oy Menetelmä suovan hapottamiseksi suurella yliannostuksella NaHSO3-liuosta

Also Published As

Publication number Publication date
ATE440803T1 (de) 2009-09-15
ES2332313T3 (es) 2010-02-02
DE602004022757D1 (de) 2009-10-08
EP1524241A1 (en) 2005-04-20
FI20030928A0 (fi) 2003-06-19
EP1524241B1 (en) 2009-08-26

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Owner name: METSO POWER OY

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