SE8306411D0 - Sett att delignifiera cellulosahaltigt material medelst oxygen - Google Patents

Sett att delignifiera cellulosahaltigt material medelst oxygen

Info

Publication number
SE8306411D0
SE8306411D0 SE8306411A SE8306411A SE8306411D0 SE 8306411 D0 SE8306411 D0 SE 8306411D0 SE 8306411 A SE8306411 A SE 8306411A SE 8306411 A SE8306411 A SE 8306411A SE 8306411 D0 SE8306411 D0 SE 8306411D0
Authority
SE
Sweden
Prior art keywords
oxygen
delignify
cellulous material
cellulous
nitrolignine
Prior art date
Application number
SE8306411A
Other languages
English (en)
Other versions
SE8306411L (sv
SE440246B (sv
Inventor
T Iversen
J Walding
O S A G Lindeberg
Original Assignee
Svenska Traeforskningsinst
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 Svenska Traeforskningsinst filed Critical Svenska Traeforskningsinst
Priority to SE8306411A priority Critical patent/SE440246B/sv
Publication of SE8306411D0 publication Critical patent/SE8306411D0/sv
Publication of SE8306411L publication Critical patent/SE8306411L/sv
Publication of SE440246B publication Critical patent/SE440246B/sv

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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
SE8306411A 1983-11-21 1983-11-21 Sett att syrgasdelignifiera cellulosahaltigt material SE440246B (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8306411A SE440246B (sv) 1983-11-21 1983-11-21 Sett att syrgasdelignifiera cellulosahaltigt material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8306411A SE440246B (sv) 1983-11-21 1983-11-21 Sett att syrgasdelignifiera cellulosahaltigt material

Publications (3)

Publication Number Publication Date
SE8306411D0 true SE8306411D0 (sv) 1983-11-21
SE8306411L SE8306411L (sv) 1985-05-22
SE440246B SE440246B (sv) 1985-07-22

Family

ID=20353409

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8306411A SE440246B (sv) 1983-11-21 1983-11-21 Sett att syrgasdelignifiera cellulosahaltigt material

Country Status (1)

Country Link
SE (1) SE440246B (sv)

Also Published As

Publication number Publication date
SE8306411L (sv) 1985-05-22
SE440246B (sv) 1985-07-22

Similar Documents

Publication Publication Date Title
SE7902901L (sv) Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
DE3561165D1 (en) Process for bleaching mechanical pulp with hydrogen peroxide
JPS5756480A (en) Novel substituted pyradinyl-1,2,4- oxadiazol-5-one and manufacture
SE7706247L (sv) Massakokningsforfarande
ES2089777T3 (es) Procedimiento para la mejora del grado de blancura, la luminosidad y la posicion de color de pastas de fibras de madera.
FI811528L (fi) Foerfarande foer regenerering av avfallspapper
DE3574486D1 (de) Verfahren zur delignifizierung und bleiche von zellstoffen.
NO895234D0 (no) Hydrogenperoksyd-blekeprosess.
ES2086408T3 (es) Mejora en el blanqueo de una pasta.
ATE21133T1 (de) Verfahren zur herstellung von halbgebleichten zellstoffen.
SE8100650L (sv) Sett att bleka lignocellulosamassa
FI924342A0 (fi) Ett foerfarande daer man anvaender cellulas foer att foerbaettra pulpens avvattningsegenskaper.
SE8304254D0 (sv) Pappersframstellning
SE8306411D0 (sv) Sett att delignifiera cellulosahaltigt material medelst oxygen
NO843255L (no) Fremgangsmaate for peroksydbleking av celluloseholdig materiale
IT8125261A0 (it) Macchina da ricamo.
JPS5545806A (en) Peroxide bleaching method of wood pulp
SE8405061L (sv) Sett att framstella cellulosamassa
ATE22293T1 (de) Substituierte tetrahydropyridazino(1,6a)benzimidazole.
SE7902404L (sv) 2,3-dihydro-4h-1-bensopyran-4-on-o-karbamoyloximer
ATE41141T1 (de) Verfahren zur herstellung von trichlorphenol.
ZA79388B (en) An anti-pollution process for bleaching wood pulp
FI905380A (fi) Foerfarande foer behandling av alkaliloesning.
SE8008336L (sv) Forfarande for delignifiering/blekning av cellulosamassa
ES8402156A1 (es) Un procedimiento para producir una composicion para un preparado de accion prolongada de nicardipina.

Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8306411-3

Effective date: 19860610