NO951396L - Fremgangsmåte for å dele sulfidinnholdet i grönnluten for fremstilling av hvitluter med henholdsvis höy og lav sulfiditet - Google Patents

Fremgangsmåte for å dele sulfidinnholdet i grönnluten for fremstilling av hvitluter med henholdsvis höy og lav sulfiditet

Info

Publication number
NO951396L
NO951396L NO951396A NO951396A NO951396L NO 951396 L NO951396 L NO 951396L NO 951396 A NO951396 A NO 951396A NO 951396 A NO951396 A NO 951396A NO 951396 L NO951396 L NO 951396L
Authority
NO
Norway
Prior art keywords
liquor
sodium carbonate
carbonate
content
carried out
Prior art date
Application number
NO951396A
Other languages
English (en)
Norwegian (no)
Other versions
NO951396D0 (no
Inventor
Bertil Pettersson
Original Assignee
Kvaerner Pulping Tech
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 Tech filed Critical Kvaerner Pulping Tech
Publication of NO951396D0 publication Critical patent/NO951396D0/no
Publication of NO951396L publication Critical patent/NO951396L/no

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)
NO951396A 1992-10-12 1995-04-10 Fremgangsmåte for å dele sulfidinnholdet i grönnluten for fremstilling av hvitluter med henholdsvis höy og lav sulfiditet NO951396L (no)

Applications Claiming Priority (2)

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
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

Publications (2)

Publication Number Publication Date
NO951396D0 NO951396D0 (no) 1995-04-10
NO951396L true NO951396L (no) 1995-04-10

Family

ID=20387466

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (11)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI95608B (fi) * 1994-06-17 1995-11-15 Ahlstroem Oy Menetelmä keittolipeiden valmistamiseksi viherlipeää kiteyttämällä
SE507033C2 (sv) * 1995-07-04 1998-03-16 Kvaerner Pulping Tech Framställning av polysulfid genom oxidation av sulfid i grönlut
CN1108412C (zh) * 1995-07-11 2003-05-14 安德里兹公司 从石灰和白泥中分离杂质的方法以及两步法苛化含有杂质如硅的绿液的方法
FI105929B (fi) * 1996-05-30 2000-10-31 Sunds Defibrator Pori Oy Parannettu erämenetelmä sulfaattiselluloosan valmistamiseksi
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
FI951739A0 (fi) 1995-04-12
WO1994009204A1 (en) 1994-04-28
JPH08502102A (ja) 1996-03-05
NO951396D0 (no) 1995-04-10
CA2146655A1 (en) 1994-04-28
AU5288093A (en) 1994-05-09
RU95109841A (ru) 1997-04-10
BR9307224A (pt) 1999-05-25
EP0663971A1 (en) 1995-07-26
US5607548A (en) 1997-03-04
FI118349B (fi) 2007-10-15
SE9203005D0 (sv) 1992-10-12
SE9203005L (sv) 1994-04-13
SE500748C2 (sv) 1994-08-22
AU674035B2 (en) 1996-12-05
FI951739A (fi) 1995-04-12

Similar Documents

Publication Publication Date Title
NO951396L (no) Fremgangsmåte for å dele sulfidinnholdet i grönnluten for fremstilling av hvitluter med henholdsvis höy og lav sulfiditet
US6290812B1 (en) Method for treating process water in connection with pulp bleaching
US4302281A (en) Method for producing pulp
US3909344A (en) Removal of sodium chloride from pulp mill operations
US4331507A (en) Desilication in alkaline pulp processes
US5340440A (en) Method for recovering chemicals using recovery boiler having at least 2 different melt sections
US3945917A (en) Decolorizing method for waste kraft paper mill effluents
US2772240A (en) Method of treating residual liquors obtained in the manufacture of pulp by the sulphate cellulose process
FI77064C (fi) Foerfarande foer kokning och blekning av cellulosa.
SE7804239L (sv) Beredning av vitlut
US5507912A (en) Kraft pulping process wherein sulphide-rich and sulphide-lean white liquors are generated
US3003908A (en) Processes of preparing cooking liquor for neutral sulphite digestion of cellulosic material
US2738270A (en) Process for utilizing the dry content of sulphite waste liquor
CA2163368C (en) Production of white liquor
CA1194656A (en) Process for the preparation of the digesting liquor required in a neutral sulfite cooking with an addition of anthraquinone
US5667633A (en) Method of producing white liquor streams of high and low sulphidity
DE3572018D1 (en) Process for the valorization of the lime muds from the causticizing cycle of the kraft process
US3719705A (en) Method for manufacturing sulfite pulp cooking liquor from sulfite pulp spent liquor
US3822180A (en) Method for manufacturing sulfite pulp cooking liquor from sulfite pulp spent liquor
SU1608276A1 (ru) Способ приготовлени белого щелока дл получени сульфатной целлюлозы
SU1125320A1 (ru) Способ приготовлени сульфатного варочного щелока
FI98226C (fi) Menetelmä natriumkarbonaatin käsittelemiseksi
US3210236A (en) Combined acid sulfite and modified sulfate pulping process with recovery cycle
US1678230A (en) Process for the production of high-alpha-cellulose fiber
WO1994001617A1 (en) Method for filtering a product formed in causticization