SE9203005L - Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut - Google Patents

Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut

Info

Publication number
SE9203005L
SE9203005L SE9203005A SE9203005A SE9203005L SE 9203005 L SE9203005 L SE 9203005L SE 9203005 A SE9203005 A SE 9203005A SE 9203005 A SE9203005 A SE 9203005A SE 9203005 L SE9203005 L SE 9203005L
Authority
SE
Sweden
Prior art keywords
liquor
content
sulphide
pct
causticization
Prior art date
Application number
SE9203005A
Other languages
Unknown language ( )
English (en)
Other versions
SE500748C2 (sv
SE9203005D0 (sv
Inventor
Bertil Pettersson
Original Assignee
Bertil Pettersson
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 Bertil Pettersson filed Critical Bertil Pettersson
Priority to SE9203005A priority Critical patent/SE500748C2/sv
Publication of SE9203005D0 publication Critical patent/SE9203005D0/sv
Priority to US08/397,253 priority patent/US5607548A/en
Priority to BR9307224A priority patent/BR9307224A/pt
Priority to EP93923077A priority patent/EP0663971A1/en
Priority to PCT/SE1993/000782 priority patent/WO1994009204A1/en
Priority to RU95109841/12A priority patent/RU95109841A/ru
Priority to CA002146655A priority patent/CA2146655A1/en
Priority to AU52880/93A priority patent/AU674035B2/en
Priority to JP6509892A priority patent/JPH08502102A/ja
Publication of SE9203005L publication Critical patent/SE9203005L/sv
Publication of SE500748C2 publication Critical patent/SE500748C2/sv
Priority to NO951396A priority patent/NO951396L/no
Priority to FI951739A priority patent/FI118349B/sv

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
    • D21C11/04—Regeneration of pulp liquors or effluent waste waters of alkali lye
    • 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
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
    • D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds

Landscapes

  • Paper (AREA)
SE9203005A 1992-10-12 1992-10-12 Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut SE500748C2 (sv)

Priority Applications (11)

Application Number Priority Date Filing Date Title
SE9203005A SE500748C2 (sv) 1992-10-12 1992-10-12 Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut
JP6509892A JPH08502102A (ja) 1992-10-12 1993-09-29 高い硫化度および低い硫化度をそれぞれ有するホワイトリカーを製造するためにグリーンリカーの硫化物含有量を分ける方法
PCT/SE1993/000782 WO1994009204A1 (en) 1992-10-12 1993-09-29 Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity respectively
BR9307224A BR9307224A (pt) 1992-10-12 1993-09-29 Processo em aparelhagem para recuperação de produtos químicos
EP93923077A EP0663971A1 (en) 1992-10-12 1993-09-29 Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity respectively
US08/397,253 US5607548A (en) 1992-10-12 1993-09-29 Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity
RU95109841/12A RU95109841A (ru) 1992-10-12 1993-09-29 Способ получения чистой жидкости с высоким содержанием сульфидов и чистой жидкости с низким содержанием сульфидов
CA002146655A CA2146655A1 (en) 1992-10-12 1993-09-29 Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity
AU52880/93A AU674035B2 (en) 1992-10-12 1993-09-29 Process for dividing the sulphide content of the green liquor for the production of white liquors having high and low sulphidity respectively
NO951396A NO951396L (no) 1992-10-12 1995-04-10 Fremgangsmåte for å dele sulfidinnholdet i grönnluten for fremstilling av hvitluter med henholdsvis höy og lav sulfiditet
FI951739A FI118349B (sv) 1992-10-12 1995-04-12 Sätt att fördela grönlutens innehåll av sulfid för framställning av vitlutar med hög respektive låg sulfiditet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9203005A SE500748C2 (sv) 1992-10-12 1992-10-12 Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut

Publications (3)

Publication Number Publication Date
SE9203005D0 SE9203005D0 (sv) 1992-10-12
SE9203005L true SE9203005L (sv) 1994-04-13
SE500748C2 SE500748C2 (sv) 1994-08-22

Family

ID=20387466

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9203005A SE500748C2 (sv) 1992-10-12 1992-10-12 Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut

Country Status (11)

Country Link
US (1) US5607548A (sv)
EP (1) EP0663971A1 (sv)
JP (1) JPH08502102A (sv)
AU (1) AU674035B2 (sv)
BR (1) BR9307224A (sv)
CA (1) CA2146655A1 (sv)
FI (1) FI118349B (sv)
NO (1) NO951396L (sv)
RU (1) RU95109841A (sv)
SE (1) SE500748C2 (sv)
WO (1) WO1994009204A1 (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95608B (sv) * 1994-06-17 1995-11-15 Ahlstroem Oy Förfarande för framställning av koklutar genom kristallisering av grönlut
SE507033C2 (sv) * 1995-07-04 1998-03-16 Kvaerner Pulping Tech Framställning av polysulfid genom oxidation av sulfid i grönlut
WO1997003245A1 (en) * 1995-07-11 1997-01-30 Ahlstrom Machinery Oy Method of separating impurities from lime and lime sludge and a method of causticizing green liquor containing impurities, such as silicon, in two stages
FI105929B (sv) * 1996-05-30 2000-10-31 Sunds Defibrator Pori Oy Förbättrat förfarande för satsvis framställning av sulfatcellulosa
US6294048B1 (en) * 1998-06-01 2001-09-25 U.S. Borax Inc. Method for regenerating sodium hydroxide by partial autocausticizing sodium carbonate containing smelt by reaction with a borate
US6348128B1 (en) * 1998-06-01 2002-02-19 U.S. Borax Inc. Method of increasing the causticizing efficiency of alkaline pulping liquor by borate addition
SE524247C2 (sv) * 2002-11-25 2004-07-13 Kvaerner Pulping Tech Metod vid produktion av grönlut

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1906886A (en) * 1927-11-23 1933-05-02 Brown Co Process of recovering and utilizing the valuable compounds in spent cooking liquors
US3617434A (en) * 1967-05-31 1971-11-02 Mitsubishi Heavy Ind Ltd Regeneration of cooking chemicals from spent alkaline cooking liquor
CA923256A (en) * 1969-12-30 1973-03-27 H. Rapson William Chemical recovery process
FI53728C (fi) * 1974-03-12 1978-07-10 Ahlstroem Oy Foerfarande foer aotervinning av kemikalier ur avlutar fraon sulfatcellulosakok och avfallsvatten fraon blekning
SE456254B (sv) * 1987-02-12 1988-09-19 Korsnes Ab Sett att rena gronlut i sulfatmassafabrikers kemikalieatervinning

Also Published As

Publication number Publication date
CA2146655A1 (en) 1994-04-28
FI951739A0 (sv) 1995-04-12
US5607548A (en) 1997-03-04
AU674035B2 (en) 1996-12-05
SE500748C2 (sv) 1994-08-22
SE9203005D0 (sv) 1992-10-12
AU5288093A (en) 1994-05-09
WO1994009204A1 (en) 1994-04-28
JPH08502102A (ja) 1996-03-05
BR9307224A (pt) 1999-05-25
FI951739A (sv) 1995-04-12
EP0663971A1 (en) 1995-07-26
NO951396D0 (no) 1995-04-10
RU95109841A (ru) 1997-04-10
FI118349B (sv) 2007-10-15
NO951396L (no) 1995-04-10

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Legal Events

Date Code Title Description
NUG Patent has lapsed