BR9306684A - Processo para o alvejamento de pasta - Google Patents

Processo para o alvejamento de pasta

Info

Publication number
BR9306684A
BR9306684A BR9306684A BR9306684A BR9306684A BR 9306684 A BR9306684 A BR 9306684A BR 9306684 A BR9306684 A BR 9306684A BR 9306684 A BR9306684 A BR 9306684A BR 9306684 A BR9306684 A BR 9306684A
Authority
BR
Brazil
Prior art keywords
pulp
bleaching
bleaching paste
paste
principally
Prior art date
Application number
BR9306684A
Other languages
English (en)
Inventor
Anders Bergovist
Hakan Dahllof
Original Assignee
Kvaemer Pulping Technologies A
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 Kvaemer Pulping Technologies A filed Critical Kvaemer Pulping Technologies A
Publication of BR9306684A publication Critical patent/BR9306684A/pt

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)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Detergent Compositions (AREA)
BR9306684A 1992-07-09 1993-06-24 Processo para o alvejamento de pasta BR9306684A (pt)

Applications Claiming Priority (2)

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
PCT/SE1993/000567 WO1994001615A1 (en) 1992-07-09 1993-06-24 Process for bleaching pulp in conjunction with adsorption of metals

Publications (1)

Publication Number Publication Date
BR9306684A true BR9306684A (pt) 1998-12-08

Family

ID=20386751

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9306684A BR9306684A (pt) 1992-07-09 1993-06-24 Processo para o alvejamento de pasta

Country Status (13)

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

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
US5509999A (en) 1993-03-24 1996-04-23 Kamyr, Inc. Treatment of bleach plant effluents
US5639347A (en) * 1993-03-24 1997-06-17 Ahlstrom Machinery Inc. Method of controlling of metals in a bleach plant, using oxidation
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
JP2001503109A (ja) * 1996-09-11 2001-03-06 ソルヴェイ アンテロックス パルプの漂白方法
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
US6468390B1 (en) * 1998-08-24 2002-10-22 Kvaerner Pulping Ab Method for continuous cooking of lignocellulosic fiber 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 (pt) * 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
ATE97179T1 (de) * 1989-06-06 1993-11-15 Eka Nobel Ab 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
EP0650541A1 (en) 1995-05-03
SE9202125D0 (sv) 1992-07-09
JPH07509028A (ja) 1995-10-05
AU667735B2 (en) 1996-04-04
NO950048L (no) 1995-01-05
ATE138433T1 (de) 1996-06-15
US6315862B1 (en) 2001-11-13
AU4519593A (en) 1994-01-31
NO301942B1 (no) 1997-12-29
DE69302818T2 (de) 1997-01-02
NO950048D0 (no) 1995-01-05
CA2138547C (en) 2000-05-02
FI950086A0 (fi) 1995-01-09
FI108946B (fi) 2002-04-30
CA2138547A1 (en) 1994-01-20
JP3283037B2 (ja) 2002-05-20
RU95105591A (ru) 1996-11-10
EP0650541B1 (en) 1996-05-22
FI950086A (fi) 1995-01-09
SE500113C2 (sv) 1994-04-18
RU2129628C1 (ru) 1999-04-27
US5462641A (en) 1995-10-31
SE9202125L (sv) 1994-01-10
DE69302818D1 (de) 1996-06-27
WO1994001615A1 (en) 1994-01-20

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B24H Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
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B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2606 DE 15-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.