FI950086A0 - Menetelmä massan valkaisemiseksi metallien adsorption yhteydessä - Google Patents

Menetelmä massan valkaisemiseksi metallien adsorption yhteydessä

Info

Publication number
FI950086A0
FI950086A0 FI950086A FI950086A FI950086A0 FI 950086 A0 FI950086 A0 FI 950086A0 FI 950086 A FI950086 A FI 950086A FI 950086 A FI950086 A FI 950086A FI 950086 A0 FI950086 A0 FI 950086A0
Authority
FI
Finland
Prior art keywords
metals
during adsorption
pulp during
bleaching pulp
bleaching
Prior art date
Application number
FI950086A
Other languages
English (en)
Swedish (sv)
Other versions
FI108946B (fi
FI950086A (fi
Inventor
Anders Bergqvist
Haokan Dahlloef
Original Assignee
Kvaerner Pulping Tech
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 Tech filed Critical Kvaerner Pulping Tech
Publication of FI950086A0 publication Critical patent/FI950086A0/fi
Publication of FI950086A publication Critical patent/FI950086A/fi
Application granted granted Critical
Publication of FI108946B publication Critical patent/FI108946B/fi

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
    • 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
    • D21C9/001—Modification of pulp properties
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI950086A 1992-07-09 1995-01-09 Menetelmä massan valkaisemiseksi metallien adsorption yhteydessä FI108946B (fi)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SE9202125A SE500113C2 (sv) 1992-07-09 1992-07-09 Sätt vid blekning av massa för omhändertagande av utlösta metaller
SE9202125 1992-09-07
SE9300567 1993-06-24
PCT/SE1993/000567 WO1994001615A1 (en) 1992-07-09 1993-06-24 Process for bleaching pulp in conjunction with adsorption of metals

Publications (3)

Publication Number Publication Date
FI950086A0 true FI950086A0 (fi) 1995-01-09
FI950086A FI950086A (fi) 1995-01-09
FI108946B FI108946B (fi) 2002-04-30

Family

ID=20386751

Family Applications (1)

Application Number Title Priority Date Filing Date
FI950086A FI108946B (fi) 1992-07-09 1995-01-09 Menetelmä massan valkaisemiseksi metallien adsorption yhteydessä

Country Status (13)

Country Link
US (2) US5462641A (fi)
EP (1) EP0650541B1 (fi)
JP (1) JP3283037B2 (fi)
AT (1) ATE138433T1 (fi)
AU (1) AU667735B2 (fi)
BR (1) BR9306684A (fi)
CA (1) CA2138547C (fi)
DE (1) DE69302818T2 (fi)
FI (1) FI108946B (fi)
NO (1) NO301942B1 (fi)
RU (1) RU2129628C1 (fi)
SE (1) SE500113C2 (fi)
WO (1) WO1994001615A1 (fi)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE500113C2 (sv) 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
SE9301160L (sv) * 1992-08-28 1994-03-01 Sunds Defibrator Ind Ab Förfarande för behandling av processvatten
US5639347A (en) * 1993-03-24 1997-06-17 Ahlstrom Machinery Inc. Method of controlling of metals in a bleach plant, using oxidation
US5509999A (en) 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
US5554259A (en) * 1993-10-01 1996-09-10 Union Camp Patent Holdings, Inc. Reduction of salt scale precipitation by control of process stream Ph and salt concentration
SE501985C2 (sv) * 1993-11-05 1995-07-03 Sunds Defibrator Ind Ab Förfarande för avskiljning av metalljoner från massa i samband med blekning av massan
SE502172C2 (sv) * 1993-12-15 1995-09-04 Mo Och Domsjoe Ab Förfarande för framställning av blekt cellulosamassa med en klorfri bleksekvens i närvaro av karbonat
SE9402542D0 (sv) * 1994-07-20 1994-07-20 Kvaerner Pulping Tech Förfarande och anordning vid blekning med trycksatt peroxid
US5728264A (en) * 1995-10-25 1998-03-17 Union Camp Patent Holding, Inc. Avoidance of salt scaling by acidic pulp washing process
FI962177A (fi) * 1996-05-23 1997-11-24 Valmet Corp Menetelmä paperitehtaan vesikiertojen järjestämiseksi
PL332079A1 (en) * 1996-09-11 1999-08-30 Solvay Interox Sa Paper pulp bleaching method
SE507505C2 (sv) * 1996-10-04 1998-06-15 Sunds Defibrator Ind Ab Blekning av pappersmassa varvid en avskild vätskefas oxideras för inaktivering av komplexbundna metalljoner
SE507483C2 (sv) * 1996-10-21 1998-06-15 Hampshire Chemical Ab Avlägsnande av metalljoner genom extraktion med en kombination av en organofil komplexbildare och ett organiskt lösningsmedel vid framställning av pappersmassa
SE9802844D0 (sv) * 1998-08-24 1998-08-24 Kvaerner Pulping Tech Method for continuous cooking of lignocellulosic fibre material
SE514947C2 (sv) * 1998-09-09 2001-05-21 Valmet Fibertech Ab Blekning av massa med ozon innefattande oxalsyratillsats
US20050045291A1 (en) * 2002-08-08 2005-03-03 Martin Ragnar Reduction of organically bound chlorine formed in chlorine dioxide bleaching
US7666086B2 (en) * 2003-09-11 2010-02-23 Igt Gaming device having selection picks and selection outcomes determined based on a wager
US20070000628A1 (en) * 2005-06-30 2007-01-04 Sealey James E Ii Method for removal of metals from a bleach plant filtrate stream
US7854847B2 (en) * 2006-11-09 2010-12-21 Rayonier Trs Holdings Inc. Process of purifying wood pulp with caustic-borate solution and recovering the purifying chemical
RU2529023C1 (ru) * 2013-05-21 2014-09-27 ОАО "Каменскволокно" Способ регенерации n,n-диметилацетамида в производстве высокопрочных арамидных нитей
RU2542367C1 (ru) * 2013-08-15 2015-02-20 Открытое акционерное общество "Каменскволокно" Способ регенерации комплексной соли хлорид лития-диметилацетамид в производстве высокопрочных арамидных нитей

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE379069B (fi) * 1973-08-27 1975-09-22 Kamyr Ab
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
FR2520397A1 (fr) 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
US5209641A (en) * 1989-03-29 1993-05-11 Kamyr Ab Apparatus for fluidizing, degassing and pumping a suspension of fibrous cellulose material
DE69004492T3 (de) * 1989-06-06 2001-11-15 Eka Nobel Ab, Bohus Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
US5039022A (en) * 1989-09-05 1991-08-13 Kamyr Ab Refiner element pattern achieving successive compression before impact
AT395028B (de) * 1990-02-07 1992-08-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von kunstfaserzellstoff
SE466061B (sv) * 1990-04-23 1991-12-09 Eka Nobel Ab Blekning av kemisk massa genom behandling med foerst ett komplexbildande aemne och sedan ett peroxidinnehaallande aemne
SE500113C2 (sv) * 1992-07-09 1994-04-18 Kamyr Ab Sätt vid blekning av massa för omhändertagande av utlösta metaller
SE9301160L (sv) 1992-08-28 1994-03-01 Sunds Defibrator Ind Ab Förfarande för behandling av processvatten

Also Published As

Publication number Publication date
NO301942B1 (no) 1997-12-29
NO950048D0 (no) 1995-01-05
SE9202125D0 (sv) 1992-07-09
CA2138547C (en) 2000-05-02
SE9202125L (sv) 1994-01-10
EP0650541B1 (en) 1996-05-22
DE69302818T2 (de) 1997-01-02
US6315862B1 (en) 2001-11-13
AU667735B2 (en) 1996-04-04
ATE138433T1 (de) 1996-06-15
BR9306684A (pt) 1998-12-08
JP3283037B2 (ja) 2002-05-20
FI108946B (fi) 2002-04-30
RU95105591A (ru) 1996-11-10
WO1994001615A1 (en) 1994-01-20
EP0650541A1 (en) 1995-05-03
SE500113C2 (sv) 1994-04-18
CA2138547A1 (en) 1994-01-20
NO950048L (no) 1995-01-05
FI950086A (fi) 1995-01-09
AU4519593A (en) 1994-01-31
RU2129628C1 (ru) 1999-04-27
US5462641A (en) 1995-10-31
DE69302818D1 (de) 1996-06-27
JPH07509028A (ja) 1995-10-05

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Legal Events

Date Code Title Description
MA Patent expired