ATE48290T1 - Verfahren zur delignifizierung und bleiche von zellstoffen. - Google Patents

Verfahren zur delignifizierung und bleiche von zellstoffen.

Info

Publication number
ATE48290T1
ATE48290T1 AT85108213T AT85108213T ATE48290T1 AT E48290 T1 ATE48290 T1 AT E48290T1 AT 85108213 T AT85108213 T AT 85108213T AT 85108213 T AT85108213 T AT 85108213T AT E48290 T1 ATE48290 T1 AT E48290T1
Authority
AT
Austria
Prior art keywords
delignification
bleaching
pulp
processes
oxygen
Prior art date
Application number
AT85108213T
Other languages
English (en)
Inventor
Horst Dr Krueger
Hans-Ulrich Dr Suess
Gerhard Dr Arnold
Sigrid Anspach
Hans Jelitto
Ursula Dr Rer Na Schwartzkopff
Original Assignee
Degussa
Waldhof Aschaffenburg Papier
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 Degussa, Waldhof Aschaffenburg Papier filed Critical Degussa
Application granted granted Critical
Publication of ATE48290T1 publication Critical patent/ATE48290T1/de

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Detergent Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
AT85108213T 1984-08-01 1985-07-03 Verfahren zur delignifizierung und bleiche von zellstoffen. ATE48290T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843428352 DE3428352A1 (de) 1984-08-01 1984-08-01 Verfahren zur delignifizierung und bleiche von zellstoffen
EP85108213A EP0171575B1 (de) 1984-08-01 1985-07-03 Verfahren zur Delignifizierung und Bleiche von Zellstoffen

Publications (1)

Publication Number Publication Date
ATE48290T1 true ATE48290T1 (de) 1989-12-15

Family

ID=6242107

Family Applications (1)

Application Number Title Priority Date Filing Date
AT85108213T ATE48290T1 (de) 1984-08-01 1985-07-03 Verfahren zur delignifizierung und bleiche von zellstoffen.

Country Status (6)

Country Link
US (1) US4626319A (de)
EP (1) EP0171575B1 (de)
AT (1) ATE48290T1 (de)
DE (2) DE3428352A1 (de)
FI (1) FI852505L (de)
NO (1) NO852472L (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2566015B1 (fr) * 1984-06-15 1986-08-29 Centre Tech Ind Papier Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
NO852330L (no) * 1985-06-10 1986-12-11 Papirind Forskningsinst Fremgangsmaate ved peroksydbleking av celluloseholdige masser.
AT392987B (de) * 1989-06-08 1991-07-25 Waagner Biro Ag Verfahren zur einmischung von wasserstoffperoxidloesung
DE3923728A1 (de) * 1989-07-18 1991-01-24 Degussa Verfahren zur stabilisierung der viskositaet von zellstoffen
US5211809A (en) * 1991-05-21 1993-05-18 Air Products And Chemicals, Inc,. Dye removal in oxygen color stripping of secondary fibers
US6231718B1 (en) 1992-02-28 2001-05-15 International Paper Company Two phase ozone and oxygen pulp treatment
US5364465A (en) * 1992-12-07 1994-11-15 Archer Daniels Midland Company Method of producing protein products for bright paper coating applications
US5387317A (en) * 1993-01-28 1995-02-07 The Mead Corporation Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
FI944348A7 (fi) * 1994-09-19 1996-03-20 Andritz Oy Menetelmä kraft-massan valkaisemiseksi
BE1011129A4 (fr) * 1997-04-25 1999-05-04 Solvay Interox Procede continu de delignification et/ou de blanchiment de pate a papier chimique vierge ou recyclee.
DE19751173A1 (de) * 1997-11-19 1999-05-27 Voith Sulzer Papiertech Patent Verfahren zur Erhöhung des Weißgrades von Papierfaserstoff
US6881299B2 (en) * 2001-05-16 2005-04-19 North American Paper Corporation Refiner bleaching with magnesium oxide and hydrogen peroxide
US20050087315A1 (en) 2003-10-28 2005-04-28 Donovan Joseph R. Low consistency oxygen delignification process
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
US8138106B2 (en) 2005-09-30 2012-03-20 Rayonier Trs Holdings Inc. Cellulosic fibers with odor control characteristics
RU2018117289A (ru) * 2013-02-08 2018-10-26 ДжиПи СЕЛЛЬЮЛОУС ГМБХ КРАФТ-ВОЛОКНО ДРЕВЕСИНЫ ХВОЙНЫХ ПОРОД С УЛУЧШЕННЫМ СОДЕРЖАНИЕМ α-ЦЕЛЛЮЛОЗЫ И ЕГО ПРИМЕНЕНИЕ ПРИ ПРОИЗВОДСТВЕ ХИМИЧЕСКИХ ЦЕЛЛЮЛОЗНЫХ ПРОДУКТОВ
US9469548B2 (en) 2015-02-20 2016-10-18 Hydro Dynamics, Inc. Continuous hydrodynamic cavitation crystallization
US10220365B2 (en) 2015-03-31 2019-03-05 Hydro Dynamics, Inc. Method and apparatus for hydrogenating substances using controlled mechanically induced cavitation
US10011804B2 (en) 2015-08-21 2018-07-03 Ecoxtraction, Llc Method of extracting CBD, THC, and other compounds from cannabis using controlled cavitation
CA3074198A1 (en) 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Modified methanesulfonic acid and uses thereof
CA3074194A1 (en) 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Modified sulfuric acid and uses thereof
CA3074199A1 (en) 2020-02-28 2021-08-28 Fluid Energy Group Ltd. Modified sulfuric acid and uses thereof
CA3102538A1 (en) * 2020-12-11 2022-06-11 Sixring Inc. Use of a 2 liquid phase system in biomass delignification
CA3102541A1 (en) * 2020-12-11 2022-06-11 Sixring Inc. Novel approach to biomass delignification
CA3128539A1 (en) * 2020-12-11 2022-06-11 Sixring Inc. Combination approach to delignification of biomass under ambient conditions
CA3102925A1 (en) * 2020-12-18 2022-06-18 Sixring Inc. Novel approach to biomass delignification

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI45574C (fi) * 1970-05-11 1972-07-10 Kymin Oy Kymmene Ab Menetelmä selluloosapitoisten aineiden valkaisemiseksi.
SE360128C (sv) * 1970-08-25 1983-10-31 Mo Och Domsjoe Ab Sett att bleka cellulosamassa med en syreinnehallande gas i nervaro av alkali
US3719552A (en) * 1971-06-18 1973-03-06 American Cyanamid Co Bleaching of lignocellulosic materials with oxygen in the presence of a peroxide
SE420430B (sv) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab Forfarande for blekning och extraktion av lignocellulosahaltig material med peroxidhaltiga blekmedel
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
US4427490A (en) * 1978-04-07 1984-01-24 International Paper Company Delignification and bleaching process for lignocellulosic pulp with peroxide in the presence of metal additives
US4372812A (en) * 1978-04-07 1983-02-08 International Paper Company Chlorine free process for bleaching lignocellulosic pulp
DE3207157C1 (de) * 1982-02-27 1983-06-09 Degussa Ag, 6000 Frankfurt Verfahren zur Herstellung von halbgebleichten Zellstoffen

Also Published As

Publication number Publication date
FI852505A7 (fi) 1986-02-02
NO852472L (no) 1986-02-03
FI852505A0 (fi) 1985-06-25
EP0171575B1 (de) 1989-11-29
EP0171575A1 (de) 1986-02-19
DE3428352A1 (de) 1986-02-13
US4626319A (en) 1986-12-02
FI852505L (fi) 1986-02-02
DE3574486D1 (de) 1990-01-04

Similar Documents

Publication Publication Date Title
ATE48290T1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
ATE2018T1 (de) Verfahren zur delignifizierung und zum bleichen von chemischen und halbchemischen zellstoffen.
NO873565L (no) Fremgangsmaate for behandling av papirmasse med en enzymatisk opploesning.
DE3561165D1 (en) Process for bleaching mechanical pulp with hydrogen peroxide
FI890700A0 (fi) Menetelmä selluloosamassan valkaisemiseksi
ATE134231T1 (de) Verbesserung beim bleichen von pulpe
ATE54475T1 (de) Verfahren zur bleiche und delignifizierung von zellstoffhaltigen produkten.
ATE21133T1 (de) Verfahren zur herstellung von halbgebleichten zellstoffen.
NO902206D0 (no) Fremgangsmaate ved delignifisering av lignocellulosefibre.
SE8003911L (sv) Forfarande for syrgasblekning av cellulosamassa
ATE110129T1 (de) Verfahren zum bleichen von chemischen zellstoffen.
ATE151824T1 (de) Aufschlussverfahren
ATE24745T1 (de) Hypochlorit-behandlung von chemischen papierpulpen.
ATE33998T1 (de) Verfahren zur delignifizierung von sulfatzellstoffen.
NO864319D0 (no) Fremgangsmaate for bleking av kjemiske papirmasser.
DE3674866D1 (de) Verfahren zur delignifizierung von zellulosematerialien.
SE8505899D0 (sv) Regenererbara reducerande blekmedel
DE59105105D1 (de) Verfahren zur chlorarmen Bleiche und Delignifizierung von Zellstoff.
SE9002001D0 (sv) Metod foer tillfoersel av vaeteperoxid i cellulosasuspensioner
FI905380L (fi) Foerfarande foer behandling av alkaliloesning.
ZA886592B (en) Method of bleaching or delignification of cellulose pulp with oxygen