DE3875493D1 - Verfahren zur reinigung der gruenlauge in sulfatpulpemuehlen. - Google Patents

Verfahren zur reinigung der gruenlauge in sulfatpulpemuehlen.

Info

Publication number
DE3875493D1
DE3875493D1 DE8888901945T DE3875493T DE3875493D1 DE 3875493 D1 DE3875493 D1 DE 3875493D1 DE 8888901945 T DE8888901945 T DE 8888901945T DE 3875493 T DE3875493 T DE 3875493T DE 3875493 D1 DE3875493 D1 DE 3875493D1
Authority
DE
Germany
Prior art keywords
pct
green liquor
cleaning
caustic lime
liquor
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE8888901945T
Other languages
English (en)
Inventor
Bertil Pettersson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Celleco Hedemora AB
Original Assignee
Celleco Hedemora AB
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20367487&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3875493(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Celleco Hedemora AB filed Critical Celleco Hedemora AB
Application granted granted Critical
Publication of DE3875493D1 publication Critical patent/DE3875493D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • D21C11/0064—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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor

Landscapes

  • Paper (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
DE8888901945T 1987-02-12 1988-02-03 Verfahren zur reinigung der gruenlauge in sulfatpulpemuehlen. Expired - Lifetime DE3875493D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8700549A SE456254B (sv) 1987-02-12 1987-02-12 Sett att rena gronlut i sulfatmassafabrikers kemikalieatervinning
PCT/SE1988/000035 WO1988006203A1 (en) 1987-02-12 1988-02-03 Method for green liquor cleaning in sulphate pulp mills

Publications (1)

Publication Number Publication Date
DE3875493D1 true DE3875493D1 (de) 1992-11-26

Family

ID=20367487

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888901945T Expired - Lifetime DE3875493D1 (de) 1987-02-12 1988-02-03 Verfahren zur reinigung der gruenlauge in sulfatpulpemuehlen.

Country Status (11)

Country Link
US (1) US4941945A (de)
EP (1) EP0399999B2 (de)
JP (1) JPH01502207A (de)
AT (1) ATE81689T1 (de)
AU (1) AU603875B2 (de)
BR (1) BR8805400A (de)
CA (1) CA1286456C (de)
DE (1) DE3875493D1 (de)
FI (1) FI93233B (de)
SE (1) SE456254B (de)
WO (1) WO1988006203A1 (de)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE467465C (sv) * 1990-11-21 2002-01-15 Caustec Ab Förfarande för att ge grönlut förbättrade sedimenterings- och filtreringsegenskaper
US5205493A (en) * 1991-12-12 1993-04-27 Adler Paul E Process for producing a carbonate composition
SE500748C2 (sv) * 1992-10-12 1994-08-22 Bertil Pettersson Förfarande vid kemikalieåtervinning i en sulfatmassafabrik för framställning av dels en vitlut med hög sulfiditet och dels en sulfidfattig vitlut
SE500660C2 (sv) * 1992-12-03 1994-08-01 Mo Och Domsjoe Ab Förfarande för framställning av grönlut vid kemikalieåtervinning i sulfat- och sulfitmassafabriker
AT398992B (de) * 1993-04-05 1995-02-27 Austrian Energy & Environment Verfahren zur umwandlung von natriumsulfat
SE501347C2 (sv) * 1993-06-04 1995-01-23 Korsnaes Ab Framställning av vitlut med förhöjd och/eller minskad sulfiditet
US5368731A (en) * 1993-10-04 1994-11-29 Dorr-Oliver Incorporated Vacuum assisted slaker classifier
SE501877C2 (sv) * 1994-05-13 1995-06-12 Kvaerner Pulping Tech Förfarande för att fälla magnesium med aluminium vid grönlutsklarning
US5705031A (en) * 1994-06-15 1998-01-06 Kvaerner Pulping Technologies Ab Process for removing and washing dregs from green liquor in a kraft pulp mill
EP1297220B1 (de) 2000-06-27 2004-10-06 International Paper Company Verfahren zur papierherstellung mittels faser- und füllstoff-komplexen
CN1225586C (zh) * 2002-02-09 2005-11-02 艾栋 改进的造纸黑液碱回收新工艺
SE524247C2 (sv) * 2002-11-25 2004-07-13 Kvaerner Pulping Tech Metod vid produktion av grönlut
US20060225852A1 (en) * 2005-04-11 2006-10-12 Jan Pekarovic Process for removing silica from cellulosic material
US7735435B2 (en) * 2006-05-24 2010-06-15 Diamond Power International, Inc. Apparatus for cleaning a smelt spout of a combustion device
US8434502B2 (en) * 2009-06-16 2013-05-07 Barry L. Wilson Caustic recovery system for C.I.P. cleaning system
WO2020160582A1 (de) 2019-02-04 2020-08-13 Technische Universität Wien Tübbing aus bewehrtem beton
FI130092B (en) 2019-08-22 2023-01-31 Valmet Technologies Oy Method and system for regulating pH in green liquor sludge
JP6901032B1 (ja) 2020-07-02 2021-07-14 栗田工業株式会社 緑液処理剤
JP7070612B2 (ja) 2020-07-02 2022-05-18 栗田工業株式会社 緑液処理方法、緑液処理管理システム

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734037A (en) * 1956-02-07 Method of introducing sulfite waste
US1815646A (en) * 1926-08-09 1931-07-21 Bates Process of causticizing
US2552183A (en) * 1945-04-07 1951-05-08 Dorr Co Two-stage causticizing
SE7809167L (sv) * 1978-08-30 1980-03-01 Rosenblads Patenter Ab Barlastreduktion
JPS55103387A (en) * 1979-02-05 1980-08-07 Mitsubishi Heavy Ind Ltd Silica removal from pulp digesting liqur
FI65918C (fi) * 1980-05-29 1984-08-10 Enso Gutzeit Oy Foerfarande foer att avskilja sodasediment fraon groenlutsuspension genom filtrering
FI72155C (sv) * 1983-10-25 1987-04-13 Partek Ab Förfarande för kausticering av grönlut i en alkalisk massakokningsproc ess.
JPS61174491A (ja) * 1985-01-24 1986-08-06 三菱重工業株式会社 硅素分含有緑液の苛性化方法
US4770742A (en) * 1987-08-07 1988-09-13 Domtar Inc. Method for increasing the efficiency of a causticizing process

Also Published As

Publication number Publication date
AU1298488A (en) 1988-09-14
US4941945A (en) 1990-07-17
EP0399999A1 (de) 1990-12-05
AU603875B2 (en) 1990-11-29
SE8700549D0 (sv) 1987-02-12
CA1286456C (en) 1991-07-23
FI884654A (fi) 1988-10-11
JPH01502207A (ja) 1989-08-03
EP0399999B1 (de) 1992-10-21
SE456254B (sv) 1988-09-19
FI884654A0 (fi) 1988-10-11
WO1988006203A1 (en) 1988-08-25
ATE81689T1 (de) 1992-11-15
EP0399999B2 (de) 1999-05-06
BR8805400A (pt) 1989-08-15
FI93233B (fi) 1994-11-30

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Legal Events

Date Code Title Description
8332 No legal effect for de