FI943466A0 - Lignoselluloosamateriaalin kaasufaasidelignifiointi - Google Patents

Lignoselluloosamateriaalin kaasufaasidelignifiointi

Info

Publication number
FI943466A0
FI943466A0 FI943466A FI943466A FI943466A0 FI 943466 A0 FI943466 A0 FI 943466A0 FI 943466 A FI943466 A FI 943466A FI 943466 A FI943466 A FI 943466A FI 943466 A0 FI943466 A0 FI 943466A0
Authority
FI
Finland
Prior art keywords
gas phase
lignocellulosic material
delignification
phase delignification
lignocellulosic
Prior art date
Application number
FI943466A
Other languages
English (en)
Swedish (sv)
Other versions
FI943466A (fi
Inventor
Sudhir K Mendiratta
David W Cawlfield
Glenn F Rudie
Venketa R Parthasarathy
Original Assignee
Olin Corp
Mead Corp
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 Olin Corp, Mead Corp filed Critical Olin Corp
Publication of FI943466A0 publication Critical patent/FI943466A0/fi
Publication of FI943466A publication Critical patent/FI943466A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
    • 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI943466A 1992-01-22 1994-07-21 Lignoselluloosamateriaalin kaasufaasidelignifiointi FI943466A (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US82379592A 1992-01-22 1992-01-22
PCT/US1993/000408 WO1993015264A1 (en) 1992-01-22 1993-01-19 Gas phase delignification of lignocellulosic material

Publications (2)

Publication Number Publication Date
FI943466A0 true FI943466A0 (fi) 1994-07-21
FI943466A FI943466A (fi) 1994-07-21

Family

ID=25239744

Family Applications (1)

Application Number Title Priority Date Filing Date
FI943466A FI943466A (fi) 1992-01-22 1994-07-21 Lignoselluloosamateriaalin kaasufaasidelignifiointi

Country Status (10)

Country Link
EP (1) EP0705361A1 (fi)
JP (1) JPH07502082A (fi)
AU (1) AU656658B2 (fi)
BR (1) BR9305760A (fi)
CA (1) CA2128408A1 (fi)
FI (1) FI943466A (fi)
NZ (1) NZ245712A (fi)
RU (1) RU94036007A (fi)
WO (1) WO1993015264A1 (fi)
ZA (1) ZA93224B (fi)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743094B1 (fr) * 1995-12-27 1998-02-13 Centre Tech Ind Papier Procede de blanchiment des pates a papier chimiques
US6773547B2 (en) * 1998-05-08 2004-08-10 American Air Liquide, Inc. Process for the bleaching of low consistency pulp using high partial pressure ozone
US6579412B2 (en) * 1998-05-08 2003-06-17 L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude Process for ozone bleaching of low consistency pulp
AU2001284569A1 (en) * 2000-08-25 2002-03-04 Akzo Nobel N.V. Chemical method
FI122626B (fi) 2006-03-31 2012-04-30 Laennen Tutkimus Western Res Inc Oy Kemiallisen massan valkaisumenetelmä
EP3705482B1 (en) 2014-08-06 2023-02-22 California Institute of Technology Silylation of aromatic heterocycles by earth abundant transition-metal-free catalysts
CN111315802B (zh) * 2017-11-07 2023-03-17 英格维蒂南卡罗来纳有限责任公司 制备低色木质素的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1957937A (en) * 1930-10-10 1934-05-08 Int Paper Co Process of bleaching fibrous cellulose material
CA902859A (en) * 1969-11-26 1972-06-20 Pulp And Paper Research Institute Of Canada Chemical reaction between a solid and a gas
US3810969A (en) * 1971-06-22 1974-05-14 Hooker Chemical Corp Process for the production of chlorine dioxide
US4216054A (en) * 1977-09-26 1980-08-05 Weyerhaeuser Company Low-consistency ozone delignification
US4902381A (en) * 1988-12-09 1990-02-20 Kamyr, Inc. Method of bleaching pulp with ozone-chlorine mixtures
US4959124A (en) * 1989-05-05 1990-09-25 International Paper Company Method of bleaching kraft pulp in a DZED sequence
US5034095A (en) * 1989-06-01 1991-07-23 Oji Paper Co., Ltd. Apparatus and process for the delignification of cellulose pulp
CA2089477A1 (en) * 1990-08-14 1992-02-15 Ted Y. Tsai Bleaching chemical pulp using chlorine/chlorine dioxide then ozone

Also Published As

Publication number Publication date
NZ245712A (en) 1994-09-27
EP0705361A1 (en) 1996-04-10
WO1993015264A1 (en) 1993-08-05
ZA93224B (en) 1993-08-18
JPH07502082A (ja) 1995-03-02
BR9305760A (pt) 1997-01-28
AU3476993A (en) 1993-09-01
EP0705361A4 (en) 1995-09-27
CA2128408A1 (en) 1993-08-05
RU94036007A (ru) 1996-06-10
FI943466A (fi) 1994-07-21
AU656658B2 (en) 1995-02-09

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Legal Events

Date Code Title Description
FD Application lapsed