BR9307572A - Processo para a produção de polpa - Google Patents

Processo para a produção de polpa

Info

Publication number
BR9307572A
BR9307572A BR9307572A BR9307572A BR9307572A BR 9307572 A BR9307572 A BR 9307572A BR 9307572 A BR9307572 A BR 9307572A BR 9307572 A BR9307572 A BR 9307572A BR 9307572 A BR9307572 A BR 9307572A
Authority
BR
Brazil
Prior art keywords
chemicals
pulp
recovered
bleaching chemicals
production
Prior art date
Application number
BR9307572A
Other languages
English (en)
Inventor
Ake Backlund
Bengt Nilsson
Lars Stigsson
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 BR9307572A publication Critical patent/BR9307572A/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
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • 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
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Coloring Foods And Improving Nutritive Qualities (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Detergent Compositions (AREA)
BR9307572A 1992-12-02 1993-11-05 Processo para a produção de polpa BR9307572A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9203612A SE470538C (sv) 1992-12-02 1992-12-02 Sätt vid blekning av massa utan användning av klorhaltiga kemikalier
PCT/SE1993/000925 WO1994012720A1 (en) 1992-12-02 1993-11-05 Method of bleaching pulp without using chlorine-containing chemicals

Publications (1)

Publication Number Publication Date
BR9307572A true BR9307572A (pt) 1999-06-01

Family

ID=20387990

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9307572A BR9307572A (pt) 1992-12-02 1993-11-05 Processo para a produção de polpa

Country Status (13)

Country Link
US (1) US6336994B1 (pt)
EP (1) EP0672208B1 (pt)
JP (1) JPH08504005A (pt)
AT (1) ATE162568T1 (pt)
AU (1) AU681613B2 (pt)
BR (1) BR9307572A (pt)
CA (1) CA2150254C (pt)
DE (1) DE69316652T2 (pt)
ES (1) ES2114171T3 (pt)
FI (1) FI111168B (pt)
NO (1) NO952152D0 (pt)
SE (1) SE470538C (pt)
WO (1) WO1994012720A1 (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE470538C (sv) 1992-12-02 1996-02-26 Kvaerner Pulping Tech Sätt vid blekning av massa utan användning av klorhaltiga kemikalier
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
SE515833C2 (sv) 1995-04-06 2001-10-15 Eka Chemicals Ab Elektrokemisk oxidation av sulfid i grönlut
US5653861A (en) * 1995-04-06 1997-08-05 Eka Nobel Ab Electrochemical process
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
US6319358B1 (en) * 1998-05-29 2001-11-20 Institue Of Paper Science And Technology Inc. Electrolytic causticizing of smelt from a kraft recovery furnace
FI990127A7 (fi) * 1999-01-22 2000-07-23 Andritz Oy Menetelmä massan käsittelemiseksi
JP4230612B2 (ja) 1999-05-28 2009-02-25 日本製紙株式会社 クラフト法パルプ製造プロセスにおける薬品回収方法
US20070246176A1 (en) * 2004-06-08 2007-10-25 Shoichi Miyawaki Pulp Bleaching Processes
FI122812B (fi) * 2007-06-15 2012-07-13 Andritz Oy Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
FI122237B (fi) * 2007-06-15 2011-10-31 Andritz Oy Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla
FI122246B (fi) * 2007-06-15 2011-10-31 Andritz Oy Menetelmä massan käsittelemiseksi sellutehtaalla
ITTO20130193A1 (it) * 2013-03-12 2014-09-13 Pierluigi Martini Apparato e metodo di trattamento complessivo della paglia di riso per impiego energetico.
DK3443159T3 (da) * 2016-04-15 2020-07-27 Marinko MIKULIC En kontinuerlig proces til fremstilling af cellulosepulp
HRP20190259A2 (hr) * 2019-02-07 2020-08-21 Marinko Mikulić Kontinuirani postupak proizvodnje celulozne pulpe iz travnatih sirovina
FI130066B (en) * 2019-02-13 2023-01-31 Andritz Oy A method for replacing sodium losses in a pulp mill and a method for producing bleached cellulose pulp
CN117469996B (zh) * 2023-10-31 2024-08-23 云南云景林纸股份有限公司 一种制浆漂白性滤液余热回收装置及方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1601408A (pt) * 1967-06-20 1970-08-24
SE381897C (sv) * 1973-11-23 1977-05-23 Skogegarnas Ind Ab Sett for satsvis alkalisk massakokning i kombination med kontinuerlig syredelignifiering
SE435302B (sv) * 1974-10-08 1984-09-17 Mannbro Sys Hb Sett vid behandling av avlutar fran delignifiering av lignocellulosamaterial med kloridbildande blekmedel
ZA761255B (en) 1975-03-11 1977-03-30 Erco Envirotech Ltd Bleachplant operation
US4372812A (en) 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
SE448007B (sv) * 1983-04-21 1987-01-12 Skf Steel Eng Ab Forfarande och anordning for atervinning av kemikalier ur massaavlut
US5164043A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
US5164044A (en) * 1990-05-17 1992-11-17 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials with ozone
FI92725C (fi) * 1991-09-09 1994-12-27 Ahlstroem Oy Menetelmä keittolipeän valmistamiseksi
US5374333A (en) * 1992-07-30 1994-12-20 Kamyr, Inc. Method for minimizing pulp mill effluents
SE470538C (sv) 1992-12-02 1996-02-26 Kvaerner Pulping Tech Sätt vid blekning av massa utan användning av klorhaltiga kemikalier

Also Published As

Publication number Publication date
DE69316652D1 (de) 1998-02-26
SE470538B (sv) 1994-07-25
CA2150254A1 (en) 1994-06-09
AU5662094A (en) 1994-06-22
FI952596A0 (fi) 1995-05-29
EP0672208B1 (en) 1998-01-21
FI952596L (fi) 1995-05-29
SE9203612L (sv) 1994-06-03
US6336994B1 (en) 2002-01-08
FI111168B (fi) 2003-06-13
DE69316652T2 (de) 1998-06-04
SE9203612D0 (sv) 1992-12-02
JPH08504005A (ja) 1996-04-30
WO1994012720A1 (en) 1994-06-09
NO952152L (no) 1995-05-31
EP0672208A1 (en) 1995-09-20
CA2150254C (en) 2001-02-20
ATE162568T1 (de) 1998-02-15
SE470538C (sv) 1996-02-26
ES2114171T3 (es) 1998-05-16
NO952152D0 (no) 1995-05-31
AU681613B2 (en) 1997-09-04

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FG9A Patent or certificate of addition granted
B25D Requested change of name of applicant approved

Owner name: METSO FIBER KARLSTAD AB (SE)

Free format text: ALTERADO DE: KVAERNER PULPING TECHNOLOGIES AB

B25A Requested transfer of rights approved

Owner name: METSO PAPER SWEDEN AB (SE)

Free format text: TRANSFERIDO POR INCORPORACAO DE: METSO FIBER KARLSTAD AB

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 05/11/2013

B25E Requested change of name of applicant rejected

Owner name: METSO PAPER SWEDEN AB (SE)

B25H Request for change of headquarter rejected

Owner name: METSO PAPER SWEDEN AB (SE)