CA2220408A1 - Method of bleaching cellulose pulp - Google Patents

Method of bleaching cellulose pulp Download PDF

Info

Publication number
CA2220408A1
CA2220408A1 CA002220408A CA2220408A CA2220408A1 CA 2220408 A1 CA2220408 A1 CA 2220408A1 CA 002220408 A CA002220408 A CA 002220408A CA 2220408 A CA2220408 A CA 2220408A CA 2220408 A1 CA2220408 A1 CA 2220408A1
Authority
CA
Canada
Prior art keywords
bleaching
stands
pulp
general formula
cellulose pulp
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.)
Abandoned
Application number
CA002220408A
Other languages
English (en)
French (fr)
Inventor
Hiroaki Maeda
Daisuke Nakamura
Nobuo Hisada
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.)
Sanyo Chemical Industries Ltd
Original Assignee
Individual
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
Priority claimed from JP8198289A external-priority patent/JP2841048B2/ja
Application filed by Individual filed Critical Individual
Publication of CA2220408A1 publication Critical patent/CA2220408A1/en
Abandoned legal-status Critical Current

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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA002220408A 1995-08-10 1996-08-06 Method of bleaching cellulose pulp Abandoned CA2220408A1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP22751995 1995-08-10
JP7-227519 1995-08-10
JP31951295 1995-11-13
JP7-319512 1995-11-13
JP8-198289 1996-07-08
JP8198289A JP2841048B2 (ja) 1995-08-10 1996-07-08 セルロースパルプ用漂白助剤および漂白方法

Publications (1)

Publication Number Publication Date
CA2220408A1 true CA2220408A1 (en) 1997-02-20

Family

ID=27327483

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002220408A Abandoned CA2220408A1 (en) 1995-08-10 1996-08-06 Method of bleaching cellulose pulp

Country Status (5)

Country Link
US (2) US6248209B1 ( )
CA (1) CA2220408A1 ( )
FI (1) FI119109B ( )
SE (1) SE523054C2 ( )
WO (1) WO1997006304A1 ( )

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19934607A1 (de) * 1999-07-23 2001-01-25 Basf Ag Hilfsmittel und Verfahren zur Reinigung und zum Bleichen von Zellulose-Pulpe
EP2061927A2 (en) * 2006-05-19 2009-05-27 The Research Foundation of the State University of New York Methods for carbonate pretreatment and pulping of cellulosic material
US20080087390A1 (en) * 2006-10-11 2008-04-17 Fort James Corporation Multi-step pulp bleaching
WO2009117402A2 (en) * 2008-03-18 2009-09-24 The Research Foundation Of State University Of New York Methods of pretreating comminuted cellulosic material with carbonate-containing solutions
EP2435628B1 (en) * 2009-05-29 2014-04-09 Solvay Sa Process for the bleaching of mechanical paper pulp

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2610556C2 (de) 1976-03-12 1978-02-02 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zum Verteilen strömender Medien über einen Strömungsquerschnitt
JPS52114708A (en) * 1976-03-19 1977-09-26 Lion Fat Oil Co Ltd Reagents used for decolorizing printed ink on used paper
US5211811A (en) * 1989-02-15 1993-05-18 Union Camp Patent Holding, Inc. Process for high consistency oxygen delignification of alkaline treated pulp followed by ozone delignification
SE467260B (sv) * 1989-12-29 1992-06-22 Kamyr Ab Blekning av cellulosamassa med klordioxid och ozon i ett och samma steg
JP2852105B2 (ja) 1990-07-03 1999-01-27 株式会社日本紙パルプ研究所 パルプのオゾン漂白法
JPH04281084A (ja) * 1991-03-07 1992-10-06 Kao Corp 脱墨剤
JP2593766B2 (ja) * 1991-08-30 1997-03-26 ライオン株式会社 フローテーション用脱墨剤
JPH05186987A (ja) 1992-01-07 1993-07-27 Sanyo Chem Ind Ltd セルロースパルプの漂白方法
JP2597934B2 (ja) * 1992-03-12 1997-04-09 株式会社日新化学研究所 故紙再生用脱墨剤
JPH05279979A (ja) * 1992-03-26 1993-10-26 Mitsubishi Paper Mills Ltd セルロースパルプの漂白法

Also Published As

Publication number Publication date
FI974284A0 (fi) 1997-11-19
SE523054C2 (sv) 2004-03-23
SE9703968L (sv) 1997-12-19
FI974284A (fi) 1997-11-19
US20010017196A1 (en) 2001-08-30
WO1997006304A1 (fr) 1997-02-20
FI119109B (fi) 2008-07-31
US6342124B2 (en) 2002-01-29
SE9703968D0 (sv) 1997-10-30
US6248209B1 (en) 2001-06-19

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued