SE9202780D0 - Foerfarande foer behandling av material innehaallande natriumsulfat och/eller natriumkarbonat i en massafabrik - Google Patents

Foerfarande foer behandling av material innehaallande natriumsulfat och/eller natriumkarbonat i en massafabrik

Info

Publication number
SE9202780D0
SE9202780D0 SE9202780A SE9202780A SE9202780D0 SE 9202780 D0 SE9202780 D0 SE 9202780D0 SE 9202780 A SE9202780 A SE 9202780A SE 9202780 A SE9202780 A SE 9202780A SE 9202780 D0 SE9202780 D0 SE 9202780D0
Authority
SE
Sweden
Prior art keywords
gas
sodium
contact
recovery boiler
procedures
Prior art date
Application number
SE9202780A
Other languages
English (en)
Other versions
SE9202780L (sv
Inventor
K Henricson
Original Assignee
Ahlstroem 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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE9202780D0 publication Critical patent/SE9202780D0/sv
Publication of SE9202780L publication Critical patent/SE9202780L/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
    • D21C11/06—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
    • D21C11/063—Treatment of gas streams comprising solid matter, e.g. the ashes resulting from the combustion of black liquor
    • D21C11/066—Separation of solid compounds from these gases; further treatment of recovered products
    • 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
    • C01B17/22—Alkali metal sulfides or polysulfides
    • 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
    • C01B17/22—Alkali metal sulfides or polysulfides
    • C01B17/24—Preparation by reduction
    • C01B17/28—Preparation by reduction with reducing gases
    • 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
    • D21C11/0071—Treatment of green or white liquors with gases, e.g. with carbon dioxide for carbonation; Expulsion of gaseous compounds, e.g. hydrogen sulfide, from these liquors by this treatment (stripping); Optional separation of solid compounds formed in the liquors by this treatment
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)
SE9202780A 1991-09-27 1992-09-25 Foerfarande foer behandling av material innehaallande natriumsulfat och/eller natriumkarbonat i en massafabrik SE9202780L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI914586A FI914586A (fi) 1991-09-27 1991-09-27 Foerfarande foer foerminskning av asklasten av en cellufabriks pannanlaeggning

Publications (2)

Publication Number Publication Date
SE9202780D0 true SE9202780D0 (sv) 1992-09-25
SE9202780L SE9202780L (sv) 1993-03-28

Family

ID=8533203

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9202780A SE9202780L (sv) 1991-09-27 1992-09-25 Foerfarande foer behandling av material innehaallande natriumsulfat och/eller natriumkarbonat i en massafabrik

Country Status (7)

Country Link
US (1) US5328563A (sv)
JP (1) JPH06341082A (sv)
CA (1) CA2078934A1 (sv)
FI (1) FI914586A (sv)
FR (1) FR2681883A1 (sv)
PT (1) PT100898A (sv)
SE (1) SE9202780L (sv)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5853535A (en) * 1991-01-28 1998-12-29 Champion International Corporation Process for manufacturing bleached pulp including recycling
US5938892A (en) * 1991-01-28 1999-08-17 Champion International Corporation Process for recycling bleach plant filtrate
JP3143222B2 (ja) * 1992-08-21 2001-03-07 大王製紙株式会社 酸及びアルカリの製造方法
US6121541A (en) * 1997-07-28 2000-09-19 Bp Solarex Monolithic multi-junction solar cells with amorphous silicon and CIS and their alloys
SE518735C2 (sv) * 1999-10-13 2002-11-12 Chemrec Ab Förfarande och anordning vid utvinning av kemikalier i samband med förgasning av restprodukter från massaframställning
MXPA03003972A (es) * 2000-11-06 2004-09-10 Georgia Tech Res Inst Materiales reforzados con fibra basados en minerales y metodos para fabricarlos.
FR2997941B1 (fr) * 2012-11-15 2023-03-03 Arkema France Procede de preparation de sulfure de metal alcalin
FI126767B (sv) * 2012-11-16 2017-05-15 Andritz Oy Förfarande för utlutning av aska från tillvaratagningspanna

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI27748A (fi) * 1955-06-10 Sixten Hilding Lars Bergstroem Förfaringssätt för ersättande av alkali- och svavelförluster vid sulfatcellulosaprocessen
US2106952A (en) * 1932-12-28 1938-02-01 Stikstofbindingsindustrie Nede Process of producing anhydrous alkall metal sulphides
CH180398A (fr) * 1934-05-30 1935-10-31 Nede Stikstofbindingsindustrie Procédé de fabrication de sulfure de sodium pratiquement pur et anhydre.
US2711430A (en) * 1950-06-27 1955-06-21 Svenska Cellulosaforeningens C Method of improving the yield of methyl sulfide obtained by heating waste liquors fro cellulose manufacture by adding inorganic sulfides
US3236589A (en) * 1961-02-03 1966-02-22 Reinhall Rolf Bertil Method of working up cellulose waste liquor containing sodium and sulfur
US3322492A (en) * 1964-07-31 1967-05-30 Little Inc A Kraft black liquor recovery
US3762989A (en) * 1971-07-30 1973-10-02 St Regis Paper Co Pyrolysis of spent pulping liquors
SE378119B (sv) * 1972-04-04 1975-08-18 Angpanneforeningen
US4439272A (en) * 1982-01-13 1984-03-27 Nguyen Xuan T Pulp mill residual liquor recovery process
SE462106B (sv) * 1986-11-28 1990-05-07 Alf Ove Andersson Saett att utvinna energi och kemikalier ur avlut fraan massaberedning
SE465039B (sv) * 1989-11-23 1991-07-15 Chemrec Ab Saett att framstaella koklutar med hoeg sulfiditet foer sulfatmassakokning

Also Published As

Publication number Publication date
CA2078934A1 (en) 1993-03-28
FI914586A (fi) 1993-03-28
JPH06341082A (ja) 1994-12-13
FR2681883A1 (fr) 1993-04-02
SE9202780L (sv) 1993-03-28
FI914586A0 (fi) 1991-09-27
US5328563A (en) 1994-07-12
PT100898A (pt) 1993-10-29

Similar Documents

Publication Publication Date Title
ES8501468A1 (es) Metodo y dispositivo para recuperar productos quimicos a partir de liquido residual procedente de la produccion de pasta papelera de madera
FI973632A0 (fi) Foerfarande och anlaeggning foer framstaellning av utfaellt kalciumkarbonat
SE9202780L (sv) Foerfarande foer behandling av material innehaallande natriumsulfat och/eller natriumkarbonat i en massafabrik
ES8704569A1 (es) Procedimiento de disgregacion con sulfito para la preparacion de celulosa a partir de materiales que contienen lignocelulosa con recuperacion de los productos quimicos de disgregacion
GB1064715A (en) Improvements in and relating to cellulosic pulps
CA2123987C (en) A method of preparing digesting liquor
US3647363A (en) Recovery of sulfur values from flue gases with oxidized neutral sulfite green liquor
FI912806A0 (fi) Ligninpreparat och foerfarande foer dess framstaellning.
CA2116017A1 (en) Production of Sodium Hydroxide
US2772240A (en) Method of treating residual liquors obtained in the manufacture of pulp by the sulphate cellulose process
SE9203583D0 (sv) Foerfarande och anordning foer aatervinning av svaveldioxid ur en sulfatmassafabriks kemikaliecirkulation
FI98381B (sv) Förfarande för reglering av svavel-natrium- förhållandet i en sodapanna
GB1505070A (en) Process for bleaching of lignocellulosic material
FI95822B (sv) Behandling av smältan av en sodapanna eller motsvarande panna
SE0103241D0 (sv) Method for recovery of pulping chemicals in an alkaline sulphite pulping process and for production of steam
ATE181119T1 (de) Herstellung einer sulfit-enthaltenden kochlauge
JPS5698287A (en) Treating method of fuel containing sulfur
GB1465001A (en) Oxygen based bleaching of kraft pulp
SE9301940D0 (sv) Framstaellning av blekningskemikalier foer cellulosamassa
SE9202781D0 (sv) Foerfarande foer behandling av en cellulosafabriks kraftiga luktgaser
SE9301834L (sv) Massaframställning genom uppslutning av en blandning av cellulosabaserat returmaterial och råträ
FR2444049A1 (fr) Procede de fabrication de cellulose a paritr de la paille
GB1433307A (en) Integrated kraft pulping process
Giro Carbonation of spent monosulphite pulping liquors

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 9202780-4

Effective date: 19940617

Format of ref document f/p: F