FI70057B - Foerfarande foer behandling av svartlut - Google Patents

Foerfarande foer behandling av svartlut Download PDF

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Publication number
FI70057B
FI70057B FI800099A FI800099A FI70057B FI 70057 B FI70057 B FI 70057B FI 800099 A FI800099 A FI 800099A FI 800099 A FI800099 A FI 800099A FI 70057 B FI70057 B FI 70057B
Authority
FI
Finland
Prior art keywords
black liquor
oil
sodium hydroxide
aqueous phase
pressure
Prior art date
Application number
FI800099A
Other languages
English (en)
Finnish (fi)
Other versions
FI800099A (fi
FI70057C (fi
Inventor
Aoke Allan Johansson
Original Assignee
Metsaeliiton Teollisuus 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 Metsaeliiton Teollisuus Oy filed Critical Metsaeliiton Teollisuus Oy
Publication of FI800099A publication Critical patent/FI800099A/fi
Application granted granted Critical
Publication of FI70057B publication Critical patent/FI70057B/fi
Publication of FI70057C publication Critical patent/FI70057C/fi

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
    • D21C11/0042—Fractionating or concentration of spent liquors by special methods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

  • Paper (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Claims (5)

1. Förfarande för att behandla svartlut frän kraftprocessen och separera dess organiska komponenter frän vattenfasen utan att behö-va omvandla vattnet tili vattenänga, kännetecknat där-av, att man bringar svartluten frän kraftprocessen i kontakt med kolmonoxid under ett tryck om 145...220 bar och en temperatur om typiskt 210...330 °C tills väsentligen altt i svatluten lost or-ganiskt material omvandlats tili vätskeformiga och gasformiga pro-dukter, vilkas förvätskade del bildar en i vattenfasen olöslig och därifrän lätt separerbar vätskeformig oljefas.
2. Förfarande enligt patentkravet 1, kännetecknat därav, att man separerar olje- och vattenfasema genom dekantering eller centrifugering.
3. Förfarande för upparbetning av använd kraft-svartlut, som inne-häller natriumsulfat frän kemiskt massaframställningsförfarande, vilket förfarande omfattar följande faser: a) man kokar lignocellulosamaterialet med vattenhaltig natriumhyd-roxid eller natriumhydroxid och natriumsulfid och sälunda bildar massa och svartlut, b) separerar massan frän svartluten, c) behandlar svartluten för att separera de i denna lösta organiska föreningarna frän vattenfasen, d) separerar de förbrukade mineraliska kemikalierna frän vattenfasen,
FI800099A 1979-01-16 1980-01-14 Foerfarande foer behandling av svartlut FI70057C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH38879 1979-01-16
CH38879 1979-01-16

Publications (3)

Publication Number Publication Date
FI800099A FI800099A (fi) 1980-07-17
FI70057B true FI70057B (fi) 1986-01-31
FI70057C FI70057C (fi) 1986-09-12

Family

ID=4185859

Family Applications (1)

Application Number Title Priority Date Filing Date
FI800099A FI70057C (fi) 1979-01-16 1980-01-14 Foerfarande foer behandling av svartlut

Country Status (5)

Country Link
EP (1) EP0022841B1 (sv)
CA (1) CA1130959A (sv)
DE (1) DE3068925D1 (sv)
FI (1) FI70057C (sv)
WO (1) WO1980001490A1 (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0041050A1 (fr) * 1980-05-27 1981-12-02 Battelle Memorial Institute Procédé pour traiter les solutions usées de digestion des matières ligno-cellulosiques lors de la fabrication de la pâte à papier par les méthodes dites "au sulfite" ou "au bisulfite"
FI911688A (fi) * 1991-04-09 1992-10-10 Ahlstroem Oy Foerfarande foer aotervinning av energi ur cellulosaprocessers avlutar
FR3039567A1 (fr) * 2015-07-31 2017-02-03 Commissariat Energie Atomique Dispositif et procede de traitement de la liqueur noire provenant de la preparation de pate a papier par liquefaction hydrothermale
CA2998571C (en) * 2015-09-16 2022-07-26 Sca Forest Products Ab A continuous process for producing bio-oil from spent black liquor
EP3350290B1 (en) * 2015-09-16 2020-04-22 SCA Forest Products AB A batch process for producing bio-oil from spent black liquor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE382367C (de) * 1920-10-24 1923-10-01 Franz Fischer Dr Verfahren zur Reduktion oder Hydrierung mit Kohlenoxyd
US3236589A (en) * 1961-02-03 1966-02-22 Reinhall Rolf Bertil Method of working up cellulose waste liquor containing sodium and sulfur
US3733255A (en) * 1970-10-30 1973-05-15 Us Interior Conversion of municipal refuse,sewage sludge and other wastes to heavy oil or bitumen
US3864096A (en) * 1973-01-04 1975-02-04 Universal Oil Prod Co Process for converting cellulose

Also Published As

Publication number Publication date
EP0022841B1 (en) 1984-08-15
EP0022841A1 (en) 1981-01-28
CA1130959A (en) 1982-09-07
WO1980001490A1 (fr) 1980-07-24
FI800099A (fi) 1980-07-17
FI70057C (fi) 1986-09-12
DE3068925D1 (en) 1984-09-20

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: METSAELIITON TEOLLISUUS OY