DE69839097D1 - BLEACHING PULP BY PERSONAL - Google Patents

BLEACHING PULP BY PERSONAL

Info

Publication number
DE69839097D1
DE69839097D1 DE69839097T DE69839097T DE69839097D1 DE 69839097 D1 DE69839097 D1 DE 69839097D1 DE 69839097 T DE69839097 T DE 69839097T DE 69839097 T DE69839097 T DE 69839097T DE 69839097 D1 DE69839097 D1 DE 69839097D1
Authority
DE
Germany
Prior art keywords
bleaching
pulp
peracid
post
earth
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.)
Expired - Lifetime
Application number
DE69839097T
Other languages
German (de)
Other versions
DE69839097T2 (en
Inventor
Jukka Jaekaerae
Juha Patola
Aarto Paren
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.)
Kemira Oyj
Original Assignee
Kemira 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 Kemira Oyj filed Critical Kemira Oyj
Publication of DE69839097D1 publication Critical patent/DE69839097D1/en
Application granted granted Critical
Publication of DE69839097T2 publication Critical patent/DE69839097T2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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.
DE69839097T 1997-12-19 1998-12-18 BLEACHING PULP BY PERSONAL Expired - Lifetime DE69839097T2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI974575 1997-12-19
FI974575A FI112958B (en) 1997-12-19 1997-12-19 Method for bleaching chemical pulp and use of bleaching solution
PCT/FI1998/000993 WO1999032710A1 (en) 1997-12-19 1998-12-18 Bleaching of chemical pulp with peracid

Publications (2)

Publication Number Publication Date
DE69839097D1 true DE69839097D1 (en) 2008-03-20
DE69839097T2 DE69839097T2 (en) 2009-01-29

Family

ID=8550176

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69839097T Expired - Lifetime DE69839097T2 (en) 1997-12-19 1998-12-18 BLEACHING PULP BY PERSONAL

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)

Families Citing this family (60)

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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
AU2006213983B2 (en) * 2005-02-19 2009-11-19 International Paper Company Pulp and paper having increased brightness
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
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
US8900408B2 (en) 2007-12-20 2014-12-02 Mitsubishi Gas Chemical Company, Inc. Process for production of bleached pulp
US7910347B1 (en) 2009-12-07 2011-03-22 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
US7927854B1 (en) 2009-12-07 2011-04-19 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
US7960528B1 (en) 2009-12-07 2011-06-14 E. I. Du Pont De Nemours And Company Perhydrolase providing improved peracid stability
US8586339B2 (en) 2010-03-26 2013-11-19 E. I. Du Pont De Nemours And Company Facilitated process for purification of proteins
US8450091B2 (en) 2010-03-26 2013-05-28 E. I. Du Pont De Nemours And Company Perhydrolase providing improved specific activity
CN102822281A (en) 2010-03-26 2012-12-12 纳幕尔杜邦公司 Polyarylene sulfide-containing polymer melt
US8389255B2 (en) 2010-03-26 2013-03-05 E.I. De Pont De Nemours And Company Perhydrolase providing improved specific activity
US8389254B2 (en) 2010-03-26 2013-03-05 E.I. Du Pont De Nemours And Company Perhydrolase providing improved specific activity
US8445242B2 (en) 2010-03-26 2013-05-21 E. I. Du Pont De Nemours And Company Perhydrolase providing improved specific activity
AU2011349447A1 (en) 2010-12-20 2013-05-30 E. I. Du Pont De Nemours And Company Targeted perhydrolases
WO2012087789A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2012087792A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
WO2012087788A1 (en) 2010-12-21 2012-06-28 E.I. Dupont De Nemours And Company Perhydrolase variant providing improved specific activity
US8394617B2 (en) 2010-12-21 2013-03-12 E.I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8389259B2 (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
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
WO2012166997A2 (en) 2011-05-31 2012-12-06 Clean Chemistry, Llc Electrochemical reactor and process
US8557556B2 (en) 2011-10-25 2013-10-15 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8546120B2 (en) 2011-10-25 2013-10-01 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
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
US8809030B2 (en) 2011-10-25 2014-08-19 E. I. Du Pont De Nemours And Company Perhydrolase variant providing improved specific activity
US8501447B2 (en) 2011-10-25 2013-08-06 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
US8956843B2 (en) 2011-10-25 2015-02-17 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
US8865435B2 (en) 2012-03-30 2014-10-21 E. I. Du Pont De Nemours And Company Enzymes useful for peracid production
BR112014024424B1 (en) 2012-03-30 2022-04-05 E.I. Du Pont De Nemours And Company Process for the production of a peroxycarboxylic acid, composition, system for generating and supplying peracid and isolated polypeptide
EP2831252B1 (en) 2012-03-30 2021-11-24 DuPont US Holding, LLC Enzymes useful for peracid production
MX2014011651A (en) 2012-03-30 2015-02-13 Du Pont Enzymes useful for peracid production.
JP6574376B2 (en) 2012-03-30 2019-09-11 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
EP2892854A4 (en) 2012-09-07 2016-11-02 Clean Chemistry Llc 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
CA2960104C (en) 2014-09-04 2023-05-02 Clean Chemistry, Inc. Method of water treatment utilizing a peracetate oxidant solution
WO2016154531A1 (en) 2015-03-26 2016-09-29 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
WO2017055504A1 (en) * 2015-09-30 2017-04-06 Imerys Minerals Limited Methods for bleaching aqueous pulps and compositions for use in these methods
US10611656B2 (en) 2015-12-07 2020-04-07 Clean Chemistry, Inc. Methods of microbial control
US10883224B2 (en) 2015-12-07 2021-01-05 Clean Chemistry, Inc. Methods of pulp fiber treatment
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
US11311012B1 (en) 2017-09-07 2022-04-26 Clean Chemistry, Inc. Bacterial control in fermentation systems
US11001864B1 (en) 2017-09-07 2021-05-11 Clean Chemistry, Inc. Bacterial control in fermentation systems

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SE420430B (en) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab PROCEDURE FOR WHEATING AND EXTRACTION OF LIGNOCELLULOSALLY MATERIALS WITH PEROXID CONTAINING BLACKS
JPH01148891A (en) * 1987-12-04 1989-06-12 Nippon Shokubai Kagaku Kogyo Co Ltd Method for bleaching wood pulp
FI90795C (en) * 1990-06-07 1994-11-22 Ahlstroem Oy Production plant for material or freight flows, especially a cellulose factory
BE1006057A3 (en) * 1992-07-06 1994-05-03 Solvay Interox Method for delignification of chemical pulp.
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
WO1996020308A1 (en) * 1994-12-28 1996-07-04 Minerals Technologies Inc. Bleaching of filled paper
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
FI964715A (en) * 1996-11-26 1998-05-27 Keskuslaboratorio Method for bleaching cellulose pulp

Also Published As

Publication number Publication date
EP1040222A1 (en) 2000-10-04
CA2315063C (en) 2008-11-18
FI112958B (en) 2004-02-13
BR9813747B1 (en) 2009-01-13
PT1040222E (en) 2008-05-05
JP4499280B2 (en) 2010-07-07
CA2315063A1 (en) 1999-07-01
ES2302362T3 (en) 2008-07-01
FI974575A (en) 1999-06-20
DE69839097T2 (en) 2009-01-29
JP2001527168A (en) 2001-12-25
WO1999032710A1 (en) 1999-07-01
EP1040222B1 (en) 2008-02-06
AU1674399A (en) 1999-07-12
BR9813747A (en) 2000-10-17
FI974575A0 (en) 1997-12-19
ATE385526T1 (en) 2008-02-15

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Legal Events

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