FI930412A - Foerfarande foer delignifiering av raocellulosa - Google Patents

Foerfarande foer delignifiering av raocellulosa Download PDF

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Publication number
FI930412A
FI930412A FI930412A FI930412A FI930412A FI 930412 A FI930412 A FI 930412A FI 930412 A FI930412 A FI 930412A FI 930412 A FI930412 A FI 930412A FI 930412 A FI930412 A FI 930412A
Authority
FI
Finland
Prior art keywords
raw cellulose
raocellulosa
foerfarande foer
delignifiering
treatment
Prior art date
Application number
FI930412A
Other languages
English (en)
Other versions
FI930412A0 (fi
FI111386B (fi
Inventor
Fausto Marzolini
Giulio Calmanti
Gianpiero Sacchi
Original Assignee
Ausimont Spa
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 Ausimont Spa filed Critical Ausimont Spa
Publication of FI930412A0 publication Critical patent/FI930412A0/fi
Publication of FI930412A publication Critical patent/FI930412A/fi
Application granted granted Critical
Publication of FI111386B publication Critical patent/FI111386B/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • 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
    • D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Bakery Products And Manufacturing Methods Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • External Artificial Organs (AREA)
  • Compounds Of Unknown Constitution (AREA)
FI930412A 1992-01-31 1993-01-29 Menetelmä ligniinin poistamiseksi raakaselluloosasta FI111386B (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI920192 1992-01-31
ITMI920192A IT1258844B (it) 1992-01-31 1992-01-31 Procedimento per la delignificazione di cellulosa grezza

Publications (3)

Publication Number Publication Date
FI930412A0 FI930412A0 (fi) 1993-01-29
FI930412A true FI930412A (fi) 1993-08-01
FI111386B FI111386B (fi) 2003-07-15

Family

ID=11361763

Family Applications (1)

Application Number Title Priority Date Filing Date
FI930412A FI111386B (fi) 1992-01-31 1993-01-29 Menetelmä ligniinin poistamiseksi raakaselluloosasta

Country Status (15)

Country Link
US (1) US5587049A (fi)
EP (1) EP0553649B1 (fi)
JP (1) JP3325324B2 (fi)
AT (1) ATE143073T1 (fi)
CA (1) CA2088281A1 (fi)
CZ (1) CZ282570B6 (fi)
DE (1) DE69304723T2 (fi)
FI (1) FI111386B (fi)
HR (1) HRP930060B1 (fi)
HU (1) HU216143B (fi)
IT (1) IT1258844B (fi)
NO (1) NO300511B1 (fi)
PL (1) PL181248B1 (fi)
SI (1) SI9300044B (fi)
SK (1) SK281308B6 (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19704054C2 (de) 1997-02-04 2000-08-10 Stockhausen Chem Fab Gmbh Verfahren zur Herstellung von Faserstoffen mit verbesserten Eigenschaften
ATE314522T1 (de) 1999-10-15 2006-01-15 Cargill Inc Fasern aus pflanzensamen und verwendung
SE525064C2 (sv) * 2003-04-17 2004-11-23 Kvaerner Pulping Tech Metod för impregnering av flis med sur behandlingsvätska i samband med sulfatkokning av cellulosamassa
JP4967451B2 (ja) * 2006-05-17 2012-07-04 三菱瓦斯化学株式会社 漂白パルプの製造方法
JP4997905B2 (ja) * 2006-10-10 2012-08-15 三菱瓦斯化学株式会社 印刷用塗被紙の製造方法
CN115044178B (zh) * 2022-05-05 2023-05-26 保定盖尔医疗科技有限公司 一种香蒲草长纤维/聚乳酸复合材料及其制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404061A (en) * 1981-08-17 1983-09-13 International Paper Company Bleaching of lignocellulosic materials with monopersulfuric acid or its salts
US4552616A (en) * 1982-10-20 1985-11-12 New Fibers International Inc. Pulping process pretreatment using a lower alkanolamine in the presence of ammonium hydroxide
US5004523A (en) * 1989-03-30 1991-04-02 The United States Of America As Represented By The Secretary Of Agriculture Delignification of lignocellulosic materials with monoperoxysulfuric acid
FI82079C (fi) * 1989-04-27 1993-05-11 Poeyry Jaakko & Co Oy Foerfarande och anordning foer kontinuerlig kokning av cellulosa
US5091054A (en) * 1989-08-18 1992-02-25 Degussa Corporation Process for bleaching and delignification of lignocellulosic
US5118389A (en) * 1990-07-06 1992-06-02 Ici Canada Inc. Two-stage peroxide bleaching process using different amounts of peroxide on different portions of mechanical pulp

Also Published As

Publication number Publication date
FI930412A0 (fi) 1993-01-29
CZ10893A3 (en) 1994-02-16
EP0553649B1 (en) 1996-09-18
HU9300246D0 (en) 1993-09-28
HRP930060A2 (en) 1994-08-31
HRP930060B1 (en) 1999-06-30
IT1258844B (it) 1996-02-29
NO930307L (no) 1993-08-02
DE69304723D1 (de) 1996-10-24
ATE143073T1 (de) 1996-10-15
HUT67451A (en) 1995-04-28
CZ282570B6 (cs) 1997-08-13
FI111386B (fi) 2003-07-15
ITMI920192A0 (it) 1992-01-31
SI9300044B (en) 2001-02-28
EP0553649A1 (en) 1993-08-04
SK4793A3 (en) 1993-09-09
JPH05247866A (ja) 1993-09-24
JP3325324B2 (ja) 2002-09-17
SK281308B6 (sk) 2001-02-12
PL181248B1 (pl) 2001-06-29
ITMI920192A1 (it) 1993-07-31
CA2088281A1 (en) 1993-08-01
SI9300044A (en) 1993-09-30
DE69304723T2 (de) 1997-01-30
NO300511B1 (no) 1997-06-09
US5587049A (en) 1996-12-24
PL297562A1 (en) 1993-08-23
NO930307D0 (no) 1993-01-29
HU216143B (hu) 1999-04-28

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Legal Events

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MA Patent expired