SE415492B - Sett att bleka och delignifiera lignocellulosahaltiga massor med en gasblandning innehallande ozon - Google Patents

Sett att bleka och delignifiera lignocellulosahaltiga massor med en gasblandning innehallande ozon

Info

Publication number
SE415492B
SE415492B SE7706371A SE7706371A SE415492B SE 415492 B SE415492 B SE 415492B SE 7706371 A SE7706371 A SE 7706371A SE 7706371 A SE7706371 A SE 7706371A SE 415492 B SE415492 B SE 415492B
Authority
SE
Sweden
Prior art keywords
lignocellulosally
delignify
blake
masses
way
Prior art date
Application number
SE7706371A
Other languages
English (en)
Other versions
SE7706371L (sv
Inventor
A W Kempf
R B Phillips
Original Assignee
Int Paper Co
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
Priority claimed from US05/705,869 external-priority patent/US4080249A/en
Application filed by Int Paper Co filed Critical Int Paper Co
Publication of SE7706371L publication Critical patent/SE7706371L/sv
Publication of SE415492B publication Critical patent/SE415492B/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
    • D21C9/1073—Bleaching ; Apparatus therefor with O3

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • External Artificial Organs (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
SE7706371A 1976-06-02 1977-06-01 Sett att bleka och delignifiera lignocellulosahaltiga massor med en gasblandning innehallande ozon SE415492B (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69206276A 1976-06-02 1976-06-02
US05/705,869 US4080249A (en) 1976-06-02 1976-07-16 Delignification and bleaching of a lignocellulosic pulp slurry with ozone

Publications (2)

Publication Number Publication Date
SE7706371L SE7706371L (sv) 1977-12-03
SE415492B true SE415492B (sv) 1980-10-06

Family

ID=27104896

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7706371A SE415492B (sv) 1976-06-02 1977-06-01 Sett att bleka och delignifiera lignocellulosahaltiga massor med en gasblandning innehallande ozon

Country Status (9)

Country Link
JP (1) JPS52148204A (sv)
AU (1) AU509882B2 (sv)
BR (1) BR7703256A (sv)
CA (1) CA1090510A (sv)
FI (1) FI62362C (sv)
FR (1) FR2353674A1 (sv)
NO (1) NO771468L (sv)
NZ (1) NZ184228A (sv)
SE (1) SE415492B (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475084A1 (fr) * 1979-11-23 1981-08-07 Weyerhaeuser Co Delignification par l'ozone a faible consistance
JPS5679797A (en) * 1979-11-30 1981-06-30 Weyerhaeuser Co Bleaching of cellulose fiber
FR2620744A1 (fr) * 1987-09-17 1989-03-24 Degremont Procede de traitement par l'ozone de materiaux ligno-cellulosiques, notamment de pates a papier et reacteur pour la mise en oeuvre de ce procede
ES2041828T3 (es) * 1988-01-25 1993-12-01 Acetocell Gmbh & Co. Kg Procedimiento para el tratamiento de masa de celulosa conteniendo lignina, con ozono.
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
AU636173B2 (en) * 1989-10-30 1993-04-22 Lenzing Aktiengesellschaft Method for the chlorine-free bleaching of pulps
KR920703922A (ko) * 1990-05-17 1992-12-18 원본미기재 환경오염 개선된 리그노셀룰로오스 물질 표백방법

Also Published As

Publication number Publication date
AU509882B2 (en) 1980-05-29
BR7703256A (pt) 1978-01-31
JPS52148204A (en) 1977-12-09
FI771500A (sv) 1977-12-03
SE7706371L (sv) 1977-12-03
FI62362C (fi) 1982-12-10
CA1090510A (en) 1980-12-02
NO771468L (no) 1977-12-05
NZ184228A (en) 1980-04-28
FI62362B (fi) 1982-08-31
FR2353674A1 (fr) 1977-12-30
AU2465177A (en) 1978-11-02

Similar Documents

Publication Publication Date Title
SE431399B (sv) Veteperoxid-persulfat-haltiga alkaliska blonderingsblandningar med en halt av en direktdragande blafergemnesblandning
IT1096344B (it) Procedimento per purificare e scomporre un miscuglio gassoso
NL7603853A (nl) Nagenoeg watervrij mengsel met organosiloxanen en epoxyverbindingen.
BE856100A (fr) Melange d'edulcorants
FI791056A (fi) Foerfarande foer blekning av saodan cellulosahaltig massa med ozon fraon vilken ligninet avlaegsnats med syre
SE437848B (sv) Sett och anleggning for att kyla massgods med en kylgas
SE7603230L (sv) Sett och anordning for framstellning av ozon
ATA436277A (de) Polyamidgrundmischung und diese enthaltende feuerhemmende polyamidmasse
SE7702138L (sv) Flytande-kristall-blandning
AT353909B (de) Schnellhaertende pulvermischung
SE428890B (sv) Sett och anordning for att driva en skerbrennare med ett skerbrennarmunstycke
SE7604401L (sv) Sett att framstella ozon och en ozongenerator for anvendning dervid
SE7611126L (sv) Slagformigt gasfilter
SE7610947L (sv) Sett vid fraktionering av en gasblandning
SE415492B (sv) Sett att bleka och delignifiera lignocellulosahaltiga massor med en gasblandning innehallande ozon
SE409554B (sv) Anordning for fraktionering av en gasblandning med minst tva komponenter omfattande en bedd innehallande en molekylsikt
ZA774932B (en) Separation of gaseous mixtures
SE427212B (sv) Kulled och sett att framstella densamma
FR2350858A1 (fr) Jacquet a plus de deux joueurs
SE416166B (sv) Leckreaktanstransformator och sett att framstella en sadan
PL198402A1 (pl) Sposob wytwarzania wysokokalorycznego gazu o malej zawartosci pylu
BE830750A (fr) Melange a fumer
SE7714883L (sv) Gasskrubber
SE7608526L (sv) Sett att genom smeltreduktion framstella rajern och eventuellt en gasblandning innehallande co och hÿ2
SE7513742L (sv) Anestetisk komposition och sett att framstella densamma