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AU4797697A - Removal of metals from treatment fluids in a cellulose pulp mill - Google Patents

Removal of metals from treatment fluids in a cellulose pulp mill

Info

Publication number
AU4797697A
AU4797697A AU47976/97A AU4797697A AU4797697A AU 4797697 A AU4797697 A AU 4797697A AU 47976/97 A AU47976/97 A AU 47976/97A AU 4797697 A AU4797697 A AU 4797697A AU 4797697 A AU4797697 A AU 4797697A
Authority
AU
Australia
Prior art keywords
metals
removal
cellulose pulp
treatment fluids
pulp mill
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.)
Abandoned
Application number
AU47976/97A
Inventor
Arne Elofson
Arne Nordgren
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.)
Hampshire Chemical AB
Original Assignee
Hampshire Chemical 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 Hampshire Chemical AB filed Critical Hampshire Chemical AB
Publication of AU4797697A publication Critical patent/AU4797697A/en
Abandoned 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
    • D21C11/0007—Recovery of by-products, i.e. compounds other than those necessary for pulping, for multiple uses or not otherwise provided for
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1042—Use of chelating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
AU47976/97A 1996-10-21 1997-10-17 Removal of metals from treatment fluids in a cellulose pulp mill Abandoned AU4797697A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9603859 1996-10-21
SE9603859A SE507483C2 (en) 1996-10-21 1996-10-21 Removal of metal ions by extraction with a combination of an organophilic complexing agent and an organic solvent in the preparation of pulp
PCT/SE1997/001749 WO1998017857A1 (en) 1996-10-21 1997-10-17 Removal of metals from treatment fluids in a cellulose pulp mill

Publications (1)

Publication Number Publication Date
AU4797697A true AU4797697A (en) 1998-05-15

Family

ID=20404332

Family Applications (1)

Application Number Title Priority Date Filing Date
AU47976/97A Abandoned AU4797697A (en) 1996-10-21 1997-10-17 Removal of metals from treatment fluids in a cellulose pulp mill

Country Status (3)

Country Link
AU (1) AU4797697A (en)
SE (1) SE507483C2 (en)
WO (1) WO1998017857A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE508227C2 (en) * 1997-05-30 1998-09-14 Hampshire Chemical Ab Extraction agents included essential oils and process for using them
US20080110584A1 (en) * 2006-11-15 2008-05-15 Caifang Yin Bleaching process with at least one extraction stage
SE533165C2 (en) * 2008-06-13 2010-07-13 Chemseq Internat Ab Chemical and process for the complex bonding of metal ions, which are at least divalent
WO2024086535A2 (en) * 2022-10-17 2024-04-25 The General Hospital Corporation Iron replacement treatments

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500113C2 (en) * 1992-07-09 1994-04-18 Kamyr Ab Method of bleaching pulp for disposal of released metals
SE470538C (en) * 1992-12-02 1996-02-26 Kvaerner Pulping Tech When bleaching pulp, use no chlorine-containing chemicals
US5509999A (en) * 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
US5571378A (en) * 1993-11-23 1996-11-05 Hampshire Chemical Ltd. Process for high-pH metal ion chelation in pulps

Also Published As

Publication number Publication date
SE9603859L (en) 1998-04-22
SE9603859D0 (en) 1996-10-21
SE507483C2 (en) 1998-06-15
WO1998017857A1 (en) 1998-04-30

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