DE69519441T2 - Verfahren zur abscheidung von übergangsmetallen und erdalkalimetallen aus bleichabwässern - Google Patents

Verfahren zur abscheidung von übergangsmetallen und erdalkalimetallen aus bleichabwässern

Info

Publication number
DE69519441T2
DE69519441T2 DE69519441T DE69519441T DE69519441T2 DE 69519441 T2 DE69519441 T2 DE 69519441T2 DE 69519441 T DE69519441 T DE 69519441T DE 69519441 T DE69519441 T DE 69519441T DE 69519441 T2 DE69519441 T2 DE 69519441T2
Authority
DE
Germany
Prior art keywords
metals
chelate
chelating agent
solution
alkaline material
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
DE69519441T
Other languages
English (en)
Other versions
DE69519441D1 (de
Inventor
Olle Wennberg
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.)
Metso Fiber Karlstad AB
Original Assignee
Kvaerner Pulping 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
Application filed by Kvaerner Pulping AB filed Critical Kvaerner Pulping AB
Publication of DE69519441D1 publication Critical patent/DE69519441D1/de
Application granted granted Critical
Publication of DE69519441T2 publication Critical patent/DE69519441T2/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
    • D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
    • D21C11/0028—Effluents derived from the washing or bleaching plants
    • 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
    • Y10S210/00—Liquid purification or separation
    • Y10S210/928—Paper mill waste, e.g. white water, black liquor treated

Landscapes

  • Paper (AREA)
  • Removal Of Specific Substances (AREA)
  • Detergent Compositions (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
DE69519441T 1994-11-04 1995-10-31 Verfahren zur abscheidung von übergangsmetallen und erdalkalimetallen aus bleichabwässern Expired - Lifetime DE69519441T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9403779A SE504424C2 (sv) 1994-11-04 1994-11-04 Sätt att fälla ut övergångsmetaller och alkaliska jordartsmetaller ur blekeriavlutar genom att tillsätta alkalisk vätska
PCT/SE1995/001281 WO1996014467A1 (en) 1994-11-04 1995-10-31 Method of precipitating transition metals and alkaline earth metals from bleach plant effluents

Publications (2)

Publication Number Publication Date
DE69519441D1 DE69519441D1 (de) 2000-12-21
DE69519441T2 true DE69519441T2 (de) 2001-06-21

Family

ID=20395847

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69519441T Expired - Lifetime DE69519441T2 (de) 1994-11-04 1995-10-31 Verfahren zur abscheidung von übergangsmetallen und erdalkalimetallen aus bleichabwässern

Country Status (10)

Country Link
US (1) US6024833A (de)
EP (1) EP0803008B1 (de)
AT (1) ATE197614T1 (de)
BR (1) BR9509570A (de)
CA (1) CA2203392A1 (de)
DE (1) DE69519441T2 (de)
ES (1) ES2153904T3 (de)
PT (1) PT803008E (de)
SE (1) SE504424C2 (de)
WO (1) WO1996014467A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9603029D0 (sv) * 1996-08-20 1996-08-20 Svenska Traeforskningsinst Method for lowering the level of oxalic acid
SE511794C2 (sv) * 1997-06-30 1999-11-29 Sunds Defibrator Ind Ab Sätt att reducera halten kalcium i vätskefasen i en pappersmassasuspension
SE9803384L (sv) 1998-03-02 1999-09-03 Kemira Kemi Ab Förfarande för behandling av processvatten
SE522436C2 (sv) 1998-05-26 2004-02-10 Andritz Oy Förfarande för förhindrande av nedsmutsning av värmeöverföringsytor i en flerstegsindunstningsanläggning för svartlut och blekeriutsläpp
US20070000628A1 (en) * 2005-06-30 2007-01-04 Sealey James E Ii Method for removal of metals from a bleach plant filtrate stream

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE417114B (sv) * 1977-07-25 1981-02-23 Mo Och Domsjoe Ab Forfarande for forebyggande av inkrustbildning i cellulosafabriker
DE2834259A1 (de) * 1978-08-04 1980-02-28 Dsi Sportartikel Skistockklammer
EP0402335B2 (de) * 1989-06-06 2001-03-14 Eka Chemicals AB Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
US5509999A (en) * 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
SE9301161L (sv) * 1993-04-07 1994-10-08 Sunds Defibrator Ind Ab Förfarande för behandling av processvatten
SE501613C2 (sv) * 1993-08-03 1995-03-27 Kvaerner Pulping Tech Sätt vid integrering av blekning och återvinning vid framställning av massa

Also Published As

Publication number Publication date
BR9509570A (pt) 1997-09-16
SE9403779L (sv) 1996-05-05
ES2153904T3 (es) 2001-03-16
US6024833A (en) 2000-02-15
SE504424C2 (sv) 1997-02-10
EP0803008B1 (de) 2000-11-15
EP0803008A1 (de) 1997-10-29
CA2203392A1 (en) 1996-05-17
PT803008E (pt) 2001-04-30
WO1996014467A1 (en) 1996-05-17
ATE197614T1 (de) 2000-12-15
DE69519441D1 (de) 2000-12-21
SE9403779D0 (sv) 1994-11-04

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Legal Events

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