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FI810366L - Foerfarande foer blekning av cellulosa medelst organisk persyra - Google Patents

Foerfarande foer blekning av cellulosa medelst organisk persyra

Info

Publication number
FI810366L
FI810366L FI810366A FI810366A FI810366L FI 810366 L FI810366 L FI 810366L FI 810366 A FI810366 A FI 810366A FI 810366 A FI810366 A FI 810366A FI 810366 L FI810366 L FI 810366L
Authority
FI
Finland
Prior art keywords
organic
peroxide
blekning
cellulosa
peer
Prior art date
Application number
FI810366A
Other languages
English (en)
Other versions
FI68685B (fi
FI68685C (fi
Inventor
Horst Krueger
Wilhelm Berndt
Hans Ulrich Suess
Original Assignee
Degussa
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6094866&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI810366(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Degussa filed Critical Degussa
Publication of FI810366L publication Critical patent/FI810366L/fi
Publication of FI68685B publication Critical patent/FI68685B/fi
Application granted granted Critical
Publication of FI68685C publication Critical patent/FI68685C/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI810366A 1980-02-16 1981-02-09 Foerfarande foer blekning av cellulosa medelst organisk persyra FI68685C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3005947A DE3005947B1 (de) 1980-02-16 1980-02-16 Verfahren zur Bleiche von Zellstoffen mittels organischer Persaeure
DE3005947 1980-02-16

Publications (3)

Publication Number Publication Date
FI810366L true FI810366L (fi) 1981-08-17
FI68685B FI68685B (fi) 1985-06-28
FI68685C FI68685C (fi) 1985-10-10

Family

ID=6094866

Family Applications (1)

Application Number Title Priority Date Filing Date
FI810366A FI68685C (fi) 1980-02-16 1981-02-09 Foerfarande foer blekning av cellulosa medelst organisk persyra

Country Status (10)

Country Link
US (1) US4400237A (fi)
EP (1) EP0034219B2 (fi)
JP (1) JPS56128389A (fi)
AT (1) ATE1826T1 (fi)
BR (1) BR8100867A (fi)
CA (1) CA1144711A (fi)
DE (2) DE3005947B1 (fi)
FI (1) FI68685C (fi)
NO (1) NO155499B (fi)
ZA (1) ZA81785B (fi)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5721591A (en) * 1980-07-11 1982-02-04 Mitsubishi Gas Chemical Co Peroxide bleaching of wood pulp
FR2520397A1 (fr) * 1982-01-28 1983-07-29 Centre Tech Ind Papier Procede pour le traitement de pates papetieres chimiques
AT378016B (de) * 1982-12-02 1985-06-10 Ver Edelstahlwerke Ag Verfahren zum entfaerben und/oder bleichen von zellulosematerial, insbesondere zellstoff, und vorrichtung zur durchfuehrung des verfahrens
US4793898A (en) * 1985-02-22 1988-12-27 Oy Keskuslaboratorio - Centrallaboratorium Ab Process for bleaching organic peroxyacid cooked material with an alkaline solution of hydrogen peroxide
FI74750C (fi) * 1985-03-22 1988-03-10 Keskuslaboratorio Foerfarande foer framstaellning av blekt cellulosamassa utav ligninhaltigt raomaterial.
US4859282A (en) * 1988-04-15 1989-08-22 E. I. Du Pont De Nemours And Company Acid purification of product from alkaline peroxide processing of nonwoody lignocellulosic substrates
FR2647641B1 (fr) * 1989-06-05 1992-01-17 Atochem Procede de fabrication de pulpes vegetales blanchies
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
DE4035813A1 (de) * 1990-11-10 1992-05-14 Akzo Gmbh Sauerstoffbleichung
DE4114135A1 (de) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Verfahren zur chlorfreien bleiche und delignifizierung von alkalizellstoff
DE4114134A1 (de) * 1991-04-30 1992-11-05 Sueddeutsche Kalkstickstoff Verfahren zur chlorfreien bleiche und delignifizierung von alkalizellstoff
ES2120984T3 (es) * 1991-10-04 1998-11-16 Solvay Interox Inc Un procedimiento para mejorar la selectividad de la deslignificacion de una pasta papelera quimica.
ATE132926T1 (de) * 1992-07-06 1996-01-15 Solvay Interox Verfahren zur delignifizierung von chemischen zellstoffen
BE1006057A3 (fr) * 1992-07-06 1994-05-03 Solvay Interox Procede pour la delignification d'une pate a papier chimique.
GB2269191A (en) * 1992-07-29 1994-02-02 Solvay Interox Ltd Method of treating aqueous process liquors
US5589032A (en) * 1992-09-21 1996-12-31 North Carolina State University Process for preparing a bleaching liquor containing percarboxylic acid and caro's acid
CA2149649C (en) † 1992-11-27 2000-09-19 Magnus Linsten Process for bleaching of lignocellulose-containing pulp
EP0634521A1 (en) * 1993-07-16 1995-01-18 Eka Nobel Ab Method for bleaching lignocellulose-containing fibres
FI98841C (fi) * 1994-06-20 1997-08-25 Kemira Chemicals Oy Menetelmä kemiallisen massan delignifioimiseksi
DE19516151A1 (de) 1995-05-03 1996-11-07 Sven Siegle Verfahren zur Herstellung einer Pulpe aus zellulosehaltigem Material, die Pulpe selbst und deren Verwendung
GB2304126A (en) * 1995-08-10 1997-03-12 Warwick Int Group Pulp treatment process
US5770011A (en) * 1995-11-17 1998-06-23 International Paper Company Neutral monoperoxysulfate bleaching process
RU2129179C1 (ru) * 1998-03-17 1999-04-20 Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии Способ отбелки сульфатной целлюлозы
RU2164572C1 (ru) * 2000-03-14 2001-03-27 Сыктывкарский лесной институт Санкт-Петербургской лесотехнической академии Способ отбелки сульфатной целлюлозы
FR2814180B1 (fr) * 2000-09-18 2003-12-05 Michel Delmas Procede de blanchiment de pates a papier en milieu organique a hydratation controlee
US20040200588A1 (en) * 2003-04-10 2004-10-14 Walker Jayne M.A. Method of controlling microorganisms in hydrogen peroxide pulp bleaching processes
US7754460B2 (en) 2003-12-03 2010-07-13 Danisco Us Inc. Enzyme for the production of long chain peracid
WO2005056782A2 (en) 2003-12-03 2005-06-23 Genencor International, Inc. Perhydrolase
US8476052B2 (en) * 2003-12-03 2013-07-02 Danisco Us Inc. Enzyme for the production of long chain peracid
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
FI121311B (fi) 2005-05-03 2010-09-30 M Real Oyj Menetelmä paperin- ja kartonginvalmistukseen soveltuvan mekaanisen massan valmistamiseksi
US8871722B2 (en) * 2005-12-06 2014-10-28 Danisco Us Inc. Perhydrolase epitopes
BRPI0619560A2 (pt) * 2005-12-09 2011-10-04 Genencor Int sistema de enzima e métodos para descontaminação
US20080087390A1 (en) * 2006-10-11 2008-04-17 Fort James Corporation Multi-step pulp bleaching
US8845860B2 (en) 2010-09-16 2014-09-30 Georgia-Pacific Consumer Products Lp High brightness pulps from lignin rich waste papers

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2394989A (en) * 1942-03-11 1946-02-19 Bonard Claude Manufacture of cellulose
US2730444A (en) * 1950-10-10 1956-01-10 British Celanese Production of cellulose
BE633420A (fi) * 1962-07-16
DE2219505C3 (de) * 1972-04-21 1974-10-17 Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt Chlorfreie Mehrstufenbleiche von Zellstoff

Also Published As

Publication number Publication date
US4400237A (en) 1983-08-23
ZA81785B (en) 1982-03-31
JPS56128389A (en) 1981-10-07
NO155499B (no) 1986-12-29
DE3005947B1 (de) 1981-01-29
NO810057L (no) 1981-08-17
EP0034219A1 (de) 1981-08-26
FI68685B (fi) 1985-06-28
FI68685C (fi) 1985-10-10
CA1144711A (en) 1983-04-19
EP0034219B2 (de) 1986-04-16
DE3061114D1 (en) 1982-12-23
BR8100867A (pt) 1981-08-25
EP0034219B1 (de) 1982-11-17
ATE1826T1 (de) 1982-12-15

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: DEGUSSA AKTIENGESELLSCHAFT