NO923145L - Bleking av lignocellulosemateriale med dioksiraner - Google Patents

Bleking av lignocellulosemateriale med dioksiraner

Info

Publication number
NO923145L
NO923145L NO92923145A NO923145A NO923145L NO 923145 L NO923145 L NO 923145L NO 92923145 A NO92923145 A NO 92923145A NO 923145 A NO923145 A NO 923145A NO 923145 L NO923145 L NO 923145L
Authority
NO
Norway
Prior art keywords
bleaching
dioxyranes
lignocellulos
dloxiran
pulp
Prior art date
Application number
NO92923145A
Other languages
English (en)
Norwegian (no)
Other versions
NO923145D0 (no
Inventor
Chung-Li Lee
Original Assignee
Pulp Paper Res Inst
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 Pulp Paper Res Inst filed Critical Pulp Paper Res Inst
Publication of NO923145L publication Critical patent/NO923145L/no
Publication of NO923145D0 publication Critical patent/NO923145D0/no

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
    • D21C9/12—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
    • 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
    • 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
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Detergent Compositions (AREA)
NO1992923145A 1990-02-16 1992-08-12 Bleking av lignocellulosemateriale med dioksiraner NO923145D0 (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CA1990/000052 WO1991012369A1 (en) 1990-02-16 1990-02-16 Bleaching of lignocellulosic material with dioxiranes

Publications (2)

Publication Number Publication Date
NO923145L true NO923145L (no) 1992-08-12
NO923145D0 NO923145D0 (no) 1992-08-12

Family

ID=4172838

Family Applications (1)

Application Number Title Priority Date Filing Date
NO1992923145A NO923145D0 (no) 1990-02-16 1992-08-12 Bleking av lignocellulosemateriale med dioksiraner

Country Status (8)

Country Link
EP (1) EP0515362B1 (pt)
JP (1) JPH0718113B2 (pt)
AU (1) AU641640B2 (pt)
BR (1) BR9007993A (pt)
DE (1) DE69008870T2 (pt)
FI (1) FI102195B (pt)
NO (1) NO923145D0 (pt)
WO (1) WO1991012369A1 (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06505057A (ja) * 1991-02-12 1994-06-09 パルプ　アンド　ペーパー　リサーチ　インスチチュート　オブ　カナダ リグノセルロース材料の活性酸素による漂白
IT1251180B (it) * 1991-08-28 1995-05-04 Ausimont Spa Processo per la degradazione della lignina con diossirani
US6706143B1 (en) 1996-03-19 2004-03-16 International Paper Company Minimizing chlorinated organics in pulp bleaching processes
JP2002302888A (ja) * 2001-04-05 2002-10-18 Oji Paper Co Ltd 漂白パルプの製造方法

Also Published As

Publication number Publication date
JPH05504173A (ja) 1993-07-01
FI923644A0 (fi) 1992-08-14
FI102195B1 (fi) 1998-10-30
AU5168690A (en) 1991-09-03
DE69008870D1 (de) 1994-06-16
AU641640B2 (en) 1993-09-30
EP0515362B1 (en) 1994-05-11
WO1991012369A1 (en) 1991-08-22
BR9007993A (pt) 1992-10-13
EP0515362A1 (en) 1992-12-02
NO923145D0 (no) 1992-08-12
JPH0718113B2 (ja) 1995-03-01
FI102195B (fi) 1998-10-30
FI923644A (fi) 1992-08-14
DE69008870T2 (de) 1994-08-18

Similar Documents

Publication Publication Date Title
ES2010529A6 (es) Procedimiento de tincion de las fibras queratinicas con 5,6-dihidroxi-indol asociado a un yoduro y con una composicion del peroxido de hidrogeno con ph alcalino.
AU6781287A (en) Process for dyeing keratinous fibres with 5, 6-dihydroxyindole and hydrogen peroxide, preceded or followed by a treatment with an iodide
EP0349220A3 (en) Phosphate buffer wash for improved amidoperoxyacid storage stability
ES2008974A6 (es) Formulacion liquida de enzimas para aplicacion tecnica, utilizaciones y procedimientos de empleo para desencalado, adobo, remojo y desengrasado de pieles en tripa.
ATE305518T1 (de) Verwendung von alpha-1,4-glukanlyase zur herstellung von 1,5 d-anhydrofruktose
AU7840787A (en) Improved process for the bleaching of cellulosic pulps using hydrogen peroxide
ATE98713T1 (de) Verfahren zur herstellung von lignocellulosepulpe.
HUT50863A (en) Amperometric process for quantitative statement of 1,4 dihydronicotinamid adenin dinucleotid /nadh/ in solution
NO895234D0 (no) Hydrogenperoksyd-blekeprosess.
NO163910C (no) Fremgangsmaate ved regulering av oxygenblekningsprosess for cellulose.
CA2064045A1 (en) Oxygen bleaching of pulp
FR2672066B1 (fr) Traitement enzymatique d'une pate ligno-cellulosique chimique.
ES8301218A1 (es) Un procedimiento para la preparacion de imidazoles antiinflamaticos.
SE9000070L (sv) Preparat som uppvisar enzymatisk delignifieringsaktivitet, saett att framstaella detsamma och tillaempningar daerav
ATE108826T1 (de) Heparinase produzierender mikroorganismus des stammes bacillus, neue heparinase und verfahren zu ihrer herstellung.
NO953712L (no) Forbedret ozon/persyre-prosess for delignifisering av et lignocelluloseholdig materiale
NO923145L (no) Bleking av lignocellulosemateriale med dioksiraner
ES8505001A1 (es) Procedimiento para el blanqueo con peroxido de material conteniendo lignocelulosa
ES2068903T3 (es) Imidazoquinoxalinas y su preparacion.
IN167741B (pt)
NZ235754A (en) Bleaching wood pulp with chlorine dioxide first at ph of 5 to 10 then at ph of 1.9 to 4.2
CA2073862A1 (en) Bleaching of Lignocellulosic Material with Dioxiranes
AU504413B2 (en) Oxygen pretreatment of woodchips prior to chemical pulping
OA06594A (fr) Procédé et installation d'obtention de jus naturel concentré de sirupage.
AU2413088A (en) Pulp bleaching process