DE69506465T2 - Verfahren zur Verminderung der Fluoreszenz in entfärbtem Zellstoff - Google Patents

Verfahren zur Verminderung der Fluoreszenz in entfärbtem Zellstoff

Info

Publication number
DE69506465T2
DE69506465T2 DE1995606465 DE69506465T DE69506465T2 DE 69506465 T2 DE69506465 T2 DE 69506465T2 DE 1995606465 DE1995606465 DE 1995606465 DE 69506465 T DE69506465 T DE 69506465T DE 69506465 T2 DE69506465 T2 DE 69506465T2
Authority
DE
Germany
Prior art keywords
reducing fluorescence
decolorized pulp
decolorized
pulp
fluorescence
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 - Fee Related
Application number
DE1995606465
Other languages
English (en)
Other versions
DE69506465D1 (de
Inventor
Jack Kogan
Michelle Steiner
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.)
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
Air Liquide SA
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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 Air Liquide SA, LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude filed Critical Air Liquide SA
Application granted granted Critical
Publication of DE69506465D1 publication Critical patent/DE69506465D1/de
Publication of DE69506465T2 publication Critical patent/DE69506465T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • 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
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
DE1995606465 1994-04-15 1995-04-14 Verfahren zur Verminderung der Fluoreszenz in entfärbtem Zellstoff Expired - Fee Related DE69506465T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/227,882 US5529660A (en) 1994-04-15 1994-04-15 Method of reducing fluorescence in deinked pulp by treating pulp with ozone and a bleaching agent

Publications (2)

Publication Number Publication Date
DE69506465D1 DE69506465D1 (de) 1999-01-21
DE69506465T2 true DE69506465T2 (de) 1999-07-15

Family

ID=22854844

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1995606465 Expired - Fee Related DE69506465T2 (de) 1994-04-15 1995-04-14 Verfahren zur Verminderung der Fluoreszenz in entfärbtem Zellstoff

Country Status (12)

Country Link
US (1) US5529660A (de)
EP (1) EP0677611B1 (de)
JP (1) JPH0860574A (de)
AU (1) AU691571B2 (de)
BR (1) BR9501565A (de)
CA (1) CA2147204A1 (de)
DE (1) DE69506465T2 (de)
DK (1) DK0677611T3 (de)
ES (1) ES2127486T3 (de)
FI (1) FI951745A (de)
NO (1) NO307058B1 (de)
NZ (1) NZ270867A (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8352400B2 (en) 1991-12-23 2013-01-08 Hoffberg Steven M Adaptive pattern recognition based controller apparatus and method and human-factored interface therefore
US5582681A (en) 1994-06-29 1996-12-10 Kimberly-Clark Corporation Production of soft paper products from old newspaper
US6001218A (en) 1994-06-29 1999-12-14 Kimberly-Clark Worldwide, Inc. Production of soft paper products from old newspaper
US6074527A (en) 1994-06-29 2000-06-13 Kimberly-Clark Worldwide, Inc. Production of soft paper products from coarse cellulosic fibers
US6296736B1 (en) 1997-10-30 2001-10-02 Kimberly-Clark Worldwide, Inc. Process for modifying pulp from recycled newspapers
FR2776312B1 (fr) * 1998-03-18 2000-05-05 Air Liquide Procede de destruction des agents fluorescents contenus dans les vieux papiers par l'acide peracetique
US6387210B1 (en) 1998-09-30 2002-05-14 Kimberly-Clark Worldwide, Inc. Method of making sanitary paper product from coarse fibers
US7904187B2 (en) 1999-02-01 2011-03-08 Hoffberg Steven M Internet appliance system and method
DE19917742C2 (de) * 1999-04-20 2001-04-26 Voith Paper Patent Gmbh Verfahren zur Behandlung von optische Aufheller enthaltenden Papierfaserstoffsuspensionen
FR2836162B1 (fr) * 2002-02-18 2004-05-07 Air Liquide Procede de traitement de papiers uses par l'ozone
US7377993B2 (en) * 2004-03-03 2008-05-27 Tanya Smith Richardson Methods for reducing fluorescence in pulp and paper
US8361802B2 (en) * 2009-03-09 2013-01-29 University of Pittsburgh—of the Commonwealth System of Higher Education Fluorescent ozone sensor
DE102013213369B3 (de) * 2013-07-09 2014-10-23 MTU Aero Engines AG Verfahren zur zerstörungsfreien Prüfung von Werkstückoberflächen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51112904A (en) * 1975-03-27 1976-10-05 Kogyo Gijutsuin Process for bleaching pulp with ozone
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
JPH07880B2 (ja) * 1989-12-27 1995-01-11 本州製紙株式会社 古紙の再生処理方法
US5302245A (en) * 1991-04-02 1994-04-12 Vps Technology Partnership Integrated wastepaper treatment process
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers

Also Published As

Publication number Publication date
BR9501565A (pt) 1995-11-14
AU691571B2 (en) 1998-05-21
NO951428L (no) 1995-10-16
US5529660A (en) 1996-06-25
EP0677611B1 (de) 1998-12-09
NO307058B1 (no) 2000-01-31
FI951745A (fi) 1995-10-16
FI951745A0 (fi) 1995-04-12
CA2147204A1 (en) 1995-10-16
NZ270867A (en) 1997-02-24
DK0677611T3 (da) 1999-08-16
DE69506465D1 (de) 1999-01-21
ES2127486T3 (es) 1999-04-16
AU1623595A (en) 1995-10-26
EP0677611A1 (de) 1995-10-18
NO951428D0 (no) 1995-04-12
JPH0860574A (ja) 1996-03-05

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee