DE69503238D1 - Bleichen von zellstoff mittels sauerstoff - Google Patents

Bleichen von zellstoff mittels sauerstoff

Info

Publication number
DE69503238D1
DE69503238D1 DE69503238T DE69503238T DE69503238D1 DE 69503238 D1 DE69503238 D1 DE 69503238D1 DE 69503238 T DE69503238 T DE 69503238T DE 69503238 T DE69503238 T DE 69503238T DE 69503238 D1 DE69503238 D1 DE 69503238D1
Authority
DE
Germany
Prior art keywords
pulp
bleaching
cellular
oxygen
bleached
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
DE69503238T
Other languages
English (en)
Inventor
Marco Solinas
Allan Proust
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.)
MacMillan Bloedel Ltd
Original Assignee
MacMillan Bloedel 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
Application filed by MacMillan Bloedel Ltd filed Critical MacMillan Bloedel Ltd
Application granted granted Critical
Publication of DE69503238D1 publication Critical patent/DE69503238D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/101—Bleaching ; Apparatus therefor in solvent medium

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Detergent Compositions (AREA)
DE69503238T 1994-04-28 1995-04-11 Bleichen von zellstoff mittels sauerstoff Expired - Lifetime DE69503238D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23402894A 1994-04-28 1994-04-28
PCT/CA1995/000194 WO1995030047A1 (en) 1994-04-28 1995-04-11 Oxygen bleaching of cellulosic pulps

Publications (1)

Publication Number Publication Date
DE69503238D1 true DE69503238D1 (de) 1998-08-06

Family

ID=22879575

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69503238T Expired - Lifetime DE69503238D1 (de) 1994-04-28 1995-04-11 Bleichen von zellstoff mittels sauerstoff

Country Status (9)

Country Link
US (1) US5609723A (de)
EP (1) EP0757732B1 (de)
JP (1) JPH09512312A (de)
AT (1) ATE167906T1 (de)
BR (1) BR9507520A (de)
CA (1) CA2188568A1 (de)
DE (1) DE69503238D1 (de)
FI (1) FI964306A (de)
WO (1) WO1995030047A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6923887B2 (en) * 2003-02-21 2005-08-02 Alberta Research Council Inc. Method for hydrogen peroxide bleaching of pulp using an organic solvent in the bleaching medium
AP2724A (en) 2006-07-21 2013-08-31 Xyleco Inc Conversion systems for biomass
EP2116224B1 (de) * 2006-11-27 2016-01-27 JNC Corporation Kosmetische zusammensetzung
AR091998A1 (es) 2012-05-03 2015-03-18 Annikki Gmbh Procedimiento de preparacion de celulosa con baja concentracion de lignina
SE543676C2 (en) * 2019-07-03 2021-05-25 Stora Enso Oyj Moldable cellulose fiber based material

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE314581B (de) * 1968-10-29 1969-09-08 Mo Och Domsjoe Ab
US4004967A (en) * 1972-06-22 1977-01-25 Billeruds Aktiebolag Bleaching cellulose pulp with oxygen in the presence of formaldehyde
US4622100A (en) * 1984-10-01 1986-11-11 International Paper Company Process for the delignification of lignocellulosic material with oxygen, ferricyanide, and a protector
FR2594455B1 (fr) * 1986-02-20 1988-06-03 Atochem Procede de delignification de pates papetieres chimiques par solvant en vue de leur blanchiment
BR9102464A (pt) * 1991-06-14 1993-01-12 White Martins Sa Aperfeicoamento em processo de deslignificacao com oxigenio de polpa lignocelulosica
JPH0551889A (ja) * 1991-08-22 1993-03-02 Mitsubishi Paper Mills Ltd セルロースパルブの漂白法
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
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
EP0757732A1 (de) 1997-02-12
WO1995030047A1 (en) 1995-11-09
ATE167906T1 (de) 1998-07-15
US5609723A (en) 1997-03-11
EP0757732B1 (de) 1998-07-01
CA2188568A1 (en) 1995-11-09
JPH09512312A (ja) 1997-12-09
BR9507520A (pt) 1997-09-16
FI964306A0 (fi) 1996-10-25
FI964306A (fi) 1996-12-18

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Legal Events

Date Code Title Description
8332 No legal effect for de