ES2153904T3 - Procedimiento para precipitar metales de transicion y metales alcalinoterreos de efluentes de una instalacion de blanqueo. - Google Patents

Procedimiento para precipitar metales de transicion y metales alcalinoterreos de efluentes de una instalacion de blanqueo.

Info

Publication number
ES2153904T3
ES2153904T3 ES95936828T ES95936828T ES2153904T3 ES 2153904 T3 ES2153904 T3 ES 2153904T3 ES 95936828 T ES95936828 T ES 95936828T ES 95936828 T ES95936828 T ES 95936828T ES 2153904 T3 ES2153904 T3 ES 2153904T3
Authority
ES
Spain
Prior art keywords
metals
whitening
alkalinoterreal
effluents
procedure
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
ES95936828T
Other languages
English (en)
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
Kvaerner Pulping Technologies 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, Kvaerner Pulping Technologies AB filed Critical Kvaerner Pulping AB
Application granted granted Critical
Publication of ES2153904T3 publication Critical patent/ES2153904T3/es
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)

Abstract

METODO PARA PRECIPITAR METALES DE TRANSICION Y METALES ALCALINO-TERREOS CON EL LICOR AGOTADO DE UNA ESTACION DE BLANQUEO RESULTANTE DE UN PROCESO DE BLANQUEO SIN CLORO, JUNTO CON LA PRODUCCION DE PASTA QUE CONTENGA LIGNOCELULOSA, MEDIANTE EL SUMINISTRO DE UN LIQUIDO ALCALINO, QUE CONSISTE PRINCIPALMENTE EN LICOR VERDE, LICOR BLANCO O UNA MEZCLA DE LOS MISMOS, AL LICOR AGOTADO DE LA ESTACION DE BLANQUEO.
ES95936828T 1994-11-04 1995-10-31 Procedimiento para precipitar metales de transicion y metales alcalinoterreos de efluentes de una instalacion de blanqueo. Expired - Lifetime ES2153904T3 (es)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
ES2153904T3 true ES2153904T3 (es) 2001-03-16

Family

ID=20395847

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95936828T Expired - Lifetime ES2153904T3 (es) 1994-11-04 1995-10-31 Procedimiento para precipitar metales de transicion y metales alcalinoterreos de efluentes de una instalacion de blanqueo.

Country Status (10)

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

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
DE69004492T3 (de) * 1989-06-06 2001-11-15 Eka Nobel Ab, Bohus 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
US6024833A (en) 2000-02-15
ATE197614T1 (de) 2000-12-15
SE504424C2 (sv) 1997-02-10
WO1996014467A1 (en) 1996-05-17
EP0803008A1 (en) 1997-10-29
SE9403779D0 (sv) 1994-11-04
EP0803008B1 (en) 2000-11-15
BR9509570A (pt) 1997-09-16
PT803008E (pt) 2001-04-30
SE9403779L (sv) 1996-05-05
DE69519441T2 (de) 2001-06-21
CA2203392A1 (en) 1996-05-17
DE69519441D1 (de) 2000-12-21

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