FI974284A - Selluloosamassan valkaisumenetelmä - Google Patents

Selluloosamassan valkaisumenetelmä Download PDF

Info

Publication number
FI974284A
FI974284A FI974284A FI974284A FI974284A FI 974284 A FI974284 A FI 974284A FI 974284 A FI974284 A FI 974284A FI 974284 A FI974284 A FI 974284A FI 974284 A FI974284 A FI 974284A
Authority
FI
Finland
Prior art keywords
cellulose pulp
bleaching procedure
bleaching
procedure
pulp
Prior art date
Application number
FI974284A
Other languages
English (en)
Swedish (sv)
Other versions
FI974284A0 (fi
FI119109B (fi
Inventor
Hiroaki Maeda
Daisuke Nakamura
Nobuo Hisada
Original Assignee
Sanyo Chemical Ind Ltd
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 Sanyo Chemical Ind Ltd filed Critical Sanyo Chemical Ind Ltd
Publication of FI974284A publication Critical patent/FI974284A/fi
Publication of FI974284A0 publication Critical patent/FI974284A0/fi
Application granted granted Critical
Publication of FI119109B publication Critical patent/FI119109B/fi

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)
FI974284A 1995-08-10 1997-11-19 Selluloosamassan valkaisumenetelmä FI119109B (fi)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP22751995 1995-08-10
JP22751995 1995-08-10
JP31951295 1995-11-13
JP31951295 1995-11-13
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
JP19828996 1996-07-08
JP9602204 1996-08-06
PCT/JP1996/002204 WO1997006304A1 (fr) 1995-08-10 1996-08-06 Procede permettant de blanchir de la pate de cellulose

Publications (3)

Publication Number Publication Date
FI974284A true FI974284A (fi) 1997-11-19
FI974284A0 FI974284A0 (fi) 1997-11-19
FI119109B FI119109B (fi) 2008-07-31

Family

ID=27327483

Family Applications (1)

Application Number Title Priority Date Filing Date
FI974284A FI119109B (fi) 1995-08-10 1997-11-19 Selluloosamassan valkaisumenetelmä

Country Status (5)

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

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
RU2445414C2 (ru) * 2006-05-19 2012-03-20 Дзе Рисерч Фаундейшн Оф Стейт Юниверсити Оф Нью Йорк Способы карбонатной предварительной обработки и варки целлюлозного материала
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
WO2010136550A1 (en) * 2009-05-29 2010-12-02 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
SE523054C2 (sv) 2004-03-23
US6248209B1 (en) 2001-06-19
CA2220408A1 (en) 1997-02-20
WO1997006304A1 (fr) 1997-02-20
SE9703968D0 (sv) 1997-10-30
FI974284A0 (fi) 1997-11-19
US6342124B2 (en) 2002-01-29
FI119109B (fi) 2008-07-31
US20010017196A1 (en) 2001-08-30
SE9703968L (sv) 1997-12-19

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