FI974575A0 - Foerfarande Foer blekning av chemical pulp and anvaendning av en blekningsloesning - Google Patents

Foerfarande Foer blekning av chemical pulp and anvaendning av en blekningsloesning

Info

Publication number
FI974575A0
FI974575A0 FI974575A FI974575A FI974575A0 FI 974575 A0 FI974575 A0 FI 974575A0 FI 974575 A FI974575 A FI 974575A FI 974575 A FI974575 A FI 974575A FI 974575 A0 FI974575 A0 FI 974575A0
Authority
FI
Finland
Prior art keywords
bleaching
pulp
peracid
post
blekningsloesning
Prior art date
Application number
FI974575A
Other languages
Finnish (fi)
Other versions
FI112958B (en
FI974575A (en
Inventor
Jukka Jaekaerae
Juha Patola
Aarto Paren
Original Assignee
Kemira Chemicals Oy
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 Kemira Chemicals Oy filed Critical Kemira Chemicals Oy
Publication of FI974575A0 publication Critical patent/FI974575A0/en
Priority to FI974575A priority Critical patent/FI112958B/en
Priority to PT98961279T priority patent/PT1040222E/en
Priority to EP98961279A priority patent/EP1040222B1/en
Priority to AU16743/99A priority patent/AU1674399A/en
Priority to BRPI9813747-6A priority patent/BR9813747B1/en
Priority to JP2000525621A priority patent/JP4499280B2/en
Priority to DE69839097T priority patent/DE69839097T2/en
Priority to CA002315063A priority patent/CA2315063C/en
Priority to AT98961279T priority patent/ATE385526T1/en
Priority to PCT/FI1998/000993 priority patent/WO1999032710A1/en
Priority to ES98961279T priority patent/ES2302362T3/en
Publication of FI974575A publication Critical patent/FI974575A/en
Application granted granted Critical
Publication of FI112958B publication Critical patent/FI112958B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/32—Bleaching agents
    • 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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Absorbent Articles And Supports Therefor (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Cosmetics (AREA)

Abstract

The invention relates to a process for the bleaching of chemical pulp and the use of a bleaching solution. According to the invention the pulp is treated in a plurality of different steps by using at least in one step a bleaching solution which contains a peracid, and the essential idea of the invention is that the peracid is used in a post-bleaching which is the last step of the bleaching process, the post-bleaching being carried out in the presence of one or more earth-alkali metal compounds. By using a peracid the pulp is brought to its final brightness, and the purpose of the earth-alkali metal added is to combat the lowering of the viscosity of the pulp. According to the invention the post-bleaching can be carried out after the bleach plant steps in a pulp flow pipe, a storage tower or in the paper machine at a paper mill.
FI974575A 1997-12-19 1997-12-19 Method for bleaching chemical pulp and use of bleaching solution FI112958B (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
FI974575A FI112958B (en) 1997-12-19 1997-12-19 Method for bleaching chemical pulp and use of bleaching solution
DE69839097T DE69839097T2 (en) 1997-12-19 1998-12-18 BLEACHING PULP BY PERSONAL
EP98961279A EP1040222B1 (en) 1997-12-19 1998-12-18 Bleaching of chemical pulp with peracid
AU16743/99A AU1674399A (en) 1997-12-19 1998-12-18 Bleaching of chemical pulp with peracid
BRPI9813747-6A BR9813747B1 (en) 1997-12-19 1998-12-18 bleaching of chemical pulp with peracid.
JP2000525621A JP4499280B2 (en) 1997-12-19 1998-12-18 Bleaching chemical pulp with peracids.
PT98961279T PT1040222E (en) 1997-12-19 1998-12-18 Bleaching of chemical pulp with peracid
CA002315063A CA2315063C (en) 1997-12-19 1998-12-18 Bleaching of chemical pulp with peracid
AT98961279T ATE385526T1 (en) 1997-12-19 1998-12-18 BLEACHING PULP USING PERACID
PCT/FI1998/000993 WO1999032710A1 (en) 1997-12-19 1998-12-18 Bleaching of chemical pulp with peracid
ES98961279T ES2302362T3 (en) 1997-12-19 1998-12-18 CHEMICAL PULP WHITENING WITH PERACIDA.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI974575A FI112958B (en) 1997-12-19 1997-12-19 Method for bleaching chemical pulp and use of bleaching solution
FI974575 1997-12-19

Publications (3)

Publication Number Publication Date
FI974575A0 true FI974575A0 (en) 1997-12-19
FI974575A FI974575A (en) 1999-06-20
FI112958B FI112958B (en) 2004-02-13

Family

ID=8550176

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974575A FI112958B (en) 1997-12-19 1997-12-19 Method for bleaching chemical pulp and use of bleaching solution

Country Status (11)

Country Link
EP (1) EP1040222B1 (en)
JP (1) JP4499280B2 (en)
AT (1) ATE385526T1 (en)
AU (1) AU1674399A (en)
BR (1) BR9813747B1 (en)
CA (1) CA2315063C (en)
DE (1) DE69839097T2 (en)
ES (1) ES2302362T3 (en)
FI (1) FI112958B (en)
PT (1) PT1040222E (en)
WO (1) WO1999032710A1 (en)

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FI117392B (en) * 1999-03-02 2006-09-29 Kemira Oyj Multi-step bleaching process for bleaching chemical pulp
JP3794254B2 (en) * 2000-02-28 2006-07-05 王子製紙株式会社 Neutral paper
FI111459B (en) 2001-04-04 2003-07-31 Kemira Chemicals Oy Process for the preparation of stable peracetic acid product
FI111745B (en) 2001-12-19 2003-09-15 Kemira Chemicals Oy Improved board manufacturing process
DE10211292A1 (en) 2002-03-14 2003-09-25 Basf Ag Process for the preparation of precipitated calcium carbonate with a high degree of whiteness
GB2391011A (en) * 2002-07-19 2004-01-28 Crosmill Ltd Bleaching cellulose suspensions
US7638016B2 (en) 2005-02-19 2009-12-29 International Paper Company Method for treating kraft pulp with optical brighteners after chlorine bleaching to increase brightness
CN101128630A (en) * 2005-02-19 2008-02-20 国际纸业公司 Fixation of optical brightening agents onto papermaking fiber
US7914646B2 (en) 2006-07-21 2011-03-29 Nalco Company Compositions and processes for paper production
JP4956991B2 (en) * 2005-12-22 2012-06-20 三菱瓦斯化学株式会社 Method for producing chemical pulp
JP4967451B2 (en) 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 Method for producing bleached pulp
BRPI0821031B1 (en) 2007-12-20 2018-05-15 Mitsubishi Gas Chemical Company, Inc. PROCESS FOR PRODUCTION OF TARGETED PULP
US7910347B1 (en) 2009-12-07 2011-03-22 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US7927854B1 (en) 2009-12-07 2011-04-19 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US7923233B1 (en) 2009-12-07 2011-04-12 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US7960528B1 (en) 2009-12-07 2011-06-14 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US7932072B1 (en) 2009-12-07 2011-04-26 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US8445242B2 (en) 2010-03-26 2013-05-21 E. I. Du Pont De Nemours And Company Perhydrolase providing improved specific activity
WO2011119703A1 (en) 2010-03-26 2011-09-29 E.I. Dupont De Nemours And Company Process for the purification of proteins
WO2011119706A1 (en) 2010-03-26 2011-09-29 E.I. Dupont De Nemours And Company Perhydrolase providing improved specific activity
WO2011119712A1 (en) 2010-03-26 2011-09-29 E.I. Dupont De Nemours And Company Perhydrolase providing improved specific activity
US8389255B2 (en) 2010-03-26 2013-03-05 E.I. De Pont De Nemours And Company Perhydrolase providing improved specific activity
US8206964B2 (en) 2010-03-26 2012-06-26 E. I. Du Pont De Nemours And Company Perhydrolase providing improved specific activity
US8652455B2 (en) 2010-12-20 2014-02-18 E I Du Pont De Nemours And Company Targeted perhydrolases
US8394617B2 (en) 2010-12-21 2013-03-12 E.I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2012087787A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
US8389257B2 (en) 2010-12-21 2013-03-05 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2012087789A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
US8399234B2 (en) 2010-12-21 2013-03-19 E.I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2012087790A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
US8389260B2 (en) 2010-12-21 2013-03-05 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2012087793A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
US9551076B2 (en) 2011-05-31 2017-01-24 Clean Chemistry, Inc. Electrochemical reactor and process
US8546120B2 (en) 2011-10-25 2013-10-01 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8735125B2 (en) 2011-10-25 2014-05-27 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8486679B2 (en) 2011-10-25 2013-07-16 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8962294B2 (en) 2011-10-25 2015-02-24 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8546119B2 (en) 2011-10-25 2013-10-01 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8956843B2 (en) 2011-10-25 2015-02-17 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8809030B2 (en) 2011-10-25 2014-08-19 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2013062885A1 (en) 2011-10-25 2013-05-02 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
US8557556B2 (en) 2011-10-25 2013-10-15 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2013096045A1 (en) 2011-12-19 2013-06-27 E. I. Du Pont De Nemours And Company Perhydrolase variants providing improved specific activity in the presence of surfactant
WO2013148187A1 (en) 2012-03-30 2013-10-03 E. I. Du Pont De Nemours And Company Enzymes useful for peracid production
CN104411822B (en) 2012-03-30 2018-11-06 纳幕尔杜邦公司 The useful enzyme of production for peracid
CA2867937C (en) 2012-03-30 2021-03-02 E. I. Du Pont De Nemours And Company Enzymes useful for peracid production
JP6200485B2 (en) 2012-03-30 2017-09-20 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニーＥ．Ｉ．Ｄｕ Ｐｏｎｔ Ｄｅ Ｎｅｍｏｕｒｓ Ａｎｄ Ｃｏｍｐａｎｙ Enzymes useful for peracid production
CN104334736A (en) 2012-03-30 2015-02-04 纳幕尔杜邦公司 Enzymes useful for peracid production
AU2013312249B2 (en) 2012-09-07 2018-03-15 Clean Chemistry, Inc. Systems and methods for generation of reactive oxygen species and applications thereof
FR2997069B1 (en) * 2012-10-18 2014-12-26 Nicolas Saverino METHOD FOR MANUFACTURING A COLORED TRAY
US10259729B2 (en) 2014-09-04 2019-04-16 Clean Chemistry, Inc. Systems and method of water treatment utilizing reactive oxygen species and applications thereof
CA2981034C (en) 2015-03-26 2024-06-25 Clean Chemistry, Inc. Systems and methods of reducing a bacteria population in high hydrogen sulfide water
FI127444B (en) * 2015-05-27 2018-06-15 Kemira Oyj Method for reducing pulp viscosity in production of dissolving pulp
BR112017027022B1 (en) * 2015-09-30 2023-04-18 Imerys Minerals Limited METHOD FOR FORMING A COMPOSITION FOR BLEACHING AQUEOUS CELLULOSIC MASS, COMPOSITION AND KIT OF INGREDIENTS
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
WO2017100284A1 (en) 2015-12-07 2017-06-15 Clean Chemistry, Inc. Methods of microbial control
FI127996B (en) * 2016-07-01 2019-07-15 Kemira Oyj A process for treating pulp
US11136714B2 (en) 2016-07-25 2021-10-05 Clean Chemistry, Inc. Methods of optical brightening agent removal
US11001864B1 (en) 2017-09-07 2021-05-11 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems

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JPH01148891A (en) * 1987-12-04 1989-06-12 Nippon Shokubai Kagaku Kogyo Co Ltd Method for bleaching wood pulp
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BE1007651A3 (en) * 1993-10-22 1995-09-05 Solvay Interox Method of laundering of chemical pulp.
CA2163389A1 (en) * 1994-11-23 1996-05-24 Malcolm Cronlund Chlorine-free organosolv pulps
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SE506480C2 (en) * 1995-06-29 1997-12-22 Sca Graphic Res Ab Bleaching of lignocellulosic fibrous material with ozone and peracid in a combination step
JP3698178B2 (en) * 1995-09-22 2005-09-21 三菱瓦斯化学株式会社 Process for bleaching chemical pulp for papermaking
EP0801170A1 (en) * 1996-04-12 1997-10-15 Chemoxal Sa Process for the delignification and/or bleaching of a paper pulp
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Also Published As

Publication number Publication date
PT1040222E (en) 2008-05-05
JP2001527168A (en) 2001-12-25
ATE385526T1 (en) 2008-02-15
DE69839097T2 (en) 2009-01-29
DE69839097D1 (en) 2008-03-20
FI112958B (en) 2004-02-13
ES2302362T3 (en) 2008-07-01
FI974575A (en) 1999-06-20
CA2315063C (en) 2008-11-18
CA2315063A1 (en) 1999-07-01
EP1040222B1 (en) 2008-02-06
WO1999032710A1 (en) 1999-07-01
BR9813747B1 (en) 2009-01-13
EP1040222A1 (en) 2000-10-04
BR9813747A (en) 2000-10-17
AU1674399A (en) 1999-07-12
JP4499280B2 (en) 2010-07-07

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Legal Events

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