EP2753750A4 - Verfahren zur behandlung von hartholzschwarzlauge und nach dem verfahren behandelte hartholzschwarzlauge - Google Patents

Verfahren zur behandlung von hartholzschwarzlauge und nach dem verfahren behandelte hartholzschwarzlauge

Info

Publication number
EP2753750A4
EP2753750A4 EP12830388.0A EP12830388A EP2753750A4 EP 2753750 A4 EP2753750 A4 EP 2753750A4 EP 12830388 A EP12830388 A EP 12830388A EP 2753750 A4 EP2753750 A4 EP 2753750A4
Authority
EP
European Patent Office
Prior art keywords
black liquor
hardwood black
treated according
treating
hardwood
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.)
Granted
Application number
EP12830388.0A
Other languages
English (en)
French (fr)
Other versions
EP2753750B1 (de
EP2753750A1 (de
Inventor
Mats Näsman
Maria Björk
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.)
Stora Enso Oyj
Original Assignee
Stora Enso Oyj
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 Stora Enso Oyj filed Critical Stora Enso Oyj
Publication of EP2753750A1 publication Critical patent/EP2753750A1/de
Publication of EP2753750A4 publication Critical patent/EP2753750A4/de
Application granted granted Critical
Publication of EP2753750B1 publication Critical patent/EP2753750B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • D21C11/10—Concentrating spent liquor by evaporation
    • D21C11/106—Prevention of incrustations on heating surfaces during the concentration, e.g. by elimination of the scale-forming substances contained in the liquors
    • 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
    • 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
    • D21C9/08—Removal of fats, resins, pitch or waxes; Chemical or physical purification, i.e. refining, of crude cellulose by removing non-cellulosic contaminants, optionally combined with bleaching

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
EP12830388.0A 2011-09-05 2012-08-28 Verfahren zur behandlung von hartholzschwarzlauge und nach dem verfahren behandelte hartholzschwarzlauge Active EP2753750B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1150800 2011-09-05
PCT/SE2012/050907 WO2013036190A1 (en) 2011-09-05 2012-08-28 Process for treating hardwood black liquor and hardwood black liquor treated according to the process

Publications (3)

Publication Number Publication Date
EP2753750A1 EP2753750A1 (de) 2014-07-16
EP2753750A4 true EP2753750A4 (de) 2015-04-22
EP2753750B1 EP2753750B1 (de) 2019-03-06

Family

ID=47832440

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12830388.0A Active EP2753750B1 (de) 2011-09-05 2012-08-28 Verfahren zur behandlung von hartholzschwarzlauge und nach dem verfahren behandelte hartholzschwarzlauge

Country Status (6)

Country Link
EP (1) EP2753750B1 (de)
CN (2) CN103842582A (de)
BR (1) BR112014005055B1 (de)
ES (1) ES2729110T3 (de)
PT (1) PT2753750T (de)
WO (1) WO2013036190A1 (de)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065188A (en) * 1979-12-10 1981-06-24 Dorr Oliver Inc Desilication in Alkaline Pulp Processes
WO1998051855A1 (en) * 1997-05-14 1998-11-19 Mo Och Domsjö Aktiebolag Method of minimizing scaling problems in the manufacture of bleached cellulose pulp while using an essentially fully closed washing liquid flow pattern
WO1999045192A1 (en) * 1998-03-02 1999-09-10 Kemira Kemi Ab Method for treating process water
WO2000011263A1 (en) * 1998-08-21 2000-03-02 Andritz-Ahlstrom Oy Method of preventing scaling
WO2005045126A1 (en) * 2003-11-03 2005-05-19 Bioregional Minimills (Uk) Limited Methods for producing pulp and treating black liquor
US20080277083A1 (en) * 2007-05-10 2008-11-13 Shevchenko Sergey M Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2063177A (en) * 1934-08-02 1936-12-08 Ralph H Mckee Recovery of organic constituents from black liquor
US3951753A (en) * 1969-06-03 1976-04-20 Roller Paul S Method and apparatus for the conversion of an aqueous scale-formed liquid
CN85106333A (zh) * 1985-08-19 1987-02-18 张沐恩 造纸黑液中碱和木质素的聚沉分离法
CA1299322C (en) * 1987-10-26 1992-04-28 Larry A. Wilhelmsen Apparatus and methods for reducing the formation of scale in pulping operations
CA2229973C (en) * 1997-02-21 2002-08-13 Ahlstrom Machinery Oy Method of inhibiting scaling in black liquor evaporators
FI972954A (fi) * 1997-07-11 1999-01-12 Sunds Defibrator Pori Oy Menetelmä sulfaattimassan valmistuksessa syntyvän jätelipeän käsittelemiseksi

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2065188A (en) * 1979-12-10 1981-06-24 Dorr Oliver Inc Desilication in Alkaline Pulp Processes
WO1998051855A1 (en) * 1997-05-14 1998-11-19 Mo Och Domsjö Aktiebolag Method of minimizing scaling problems in the manufacture of bleached cellulose pulp while using an essentially fully closed washing liquid flow pattern
WO1999045192A1 (en) * 1998-03-02 1999-09-10 Kemira Kemi Ab Method for treating process water
WO2000011263A1 (en) * 1998-08-21 2000-03-02 Andritz-Ahlstrom Oy Method of preventing scaling
WO2005045126A1 (en) * 2003-11-03 2005-05-19 Bioregional Minimills (Uk) Limited Methods for producing pulp and treating black liquor
US20080277083A1 (en) * 2007-05-10 2008-11-13 Shevchenko Sergey M Method of monitoring and inhibiting scale deposition in pulp mill evaporators and concentrators

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
FREDERICK W J ET AL: "Preventing Calcium Carbonate Scaling in Black Liquor Evaporators (Part one of two)", SOUTHERN PULP AND PAPER MANUFACTURER, ATLANTA, GA, US, 1 August 1979 (1979-08-01), pages 22,24, XP008174221, ISSN: 0038-4488 *
See also references of WO2013036190A1 *

Also Published As

Publication number Publication date
BR112014005055A2 (pt) 2017-03-28
PT2753750T (pt) 2019-06-06
CN107503213A (zh) 2017-12-22
ES2729110T3 (es) 2019-10-30
EP2753750B1 (de) 2019-03-06
CN103842582A (zh) 2014-06-04
WO2013036190A1 (en) 2013-03-14
BR112014005055B1 (pt) 2021-01-12
EP2753750A1 (de) 2014-07-16

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