NZ184228A - Delignifying cellulosic pulps using ozone at low consistency - Google Patents

Delignifying cellulosic pulps using ozone at low consistency

Info

Publication number
NZ184228A
NZ184228A NZ184228A NZ18422877A NZ184228A NZ 184228 A NZ184228 A NZ 184228A NZ 184228 A NZ184228 A NZ 184228A NZ 18422877 A NZ18422877 A NZ 18422877A NZ 184228 A NZ184228 A NZ 184228A
Authority
NZ
New Zealand
Prior art keywords
ozone
low consistency
cellulosic pulps
delignifying
delignifying cellulosic
Prior art date
Application number
NZ184228A
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 NZ184228A publication Critical patent/NZ184228A/en

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)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • External Artificial Organs (AREA)
NZ184228A 1976-06-02 1977-05-27 Delignifying cellulosic pulps using ozone at low consistency NZ184228A (en)

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 (1)

Publication Number Publication Date
NZ184228A true NZ184228A (en) 1980-04-28

Family

ID=27104896

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ184228A NZ184228A (en) 1976-06-02 1977-05-27 Delignifying cellulosic pulps using ozone at low consistency

Country Status (9)

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

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2475084A1 (en) * 1979-11-23 1981-08-07 Weyerhaeuser Co Low consistency pulp bleaching with ozone - at specific consistencies and gassed pulp mixing energies
JPS5679797A (en) * 1979-11-30 1981-06-30 Weyerhaeuser Co Bleaching of cellulose fiber
FR2620744A1 (en) * 1987-09-17 1989-03-24 Degremont PROCESS FOR THE OZONE TREATMENT OF LIGNO-CELLULOSIC MATERIALS, IN PARTICULAR PAPER PULP AND REACTOR FOR THE IMPLEMENTATION OF SAID METHOD
ES2041828T3 (en) * 1988-01-25 1993-12-01 Acetocell Gmbh & Co. Kg PROCEDURE FOR THE TREATMENT OF CELLULOSE MASS CONTAINING LIGNIN, WITH OZONE.
FI89516B (en) * 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
EP0483163B1 (en) * 1990-05-17 1995-05-10 Union Camp Patent Holding, Inc. Environmentally improved process for bleaching lignocellulosic materials

Also Published As

Publication number Publication date
JPS52148204A (en) 1977-12-09
SE7706371L (en) 1977-12-03
FI771500A (en) 1977-12-03
AU2465177A (en) 1978-11-02
SE415492B (en) 1980-10-06
NO771468L (en) 1977-12-05
CA1090510A (en) 1980-12-02
AU509882B2 (en) 1980-05-29
FI62362C (en) 1982-12-10
BR7703256A (en) 1978-01-31
FI62362B (en) 1982-08-31
FR2353674A1 (en) 1977-12-30

Similar Documents

Publication Publication Date Title
JPS5341577A (en) Fibrous web
GB2108166B (en) Dimensionally stable cellulosic web
GB2003948B (en) Papermaking fabric
AU5499480A (en) Washing cellulose pulp
JPS5482409A (en) Paper pulp refiner
JPS52155202A (en) Process for making cellulose pulp
NO801287L (en) Pulp screen.
GB1550515A (en) Paper-making machine twin-wire forming section
SU757123A3 (en) Calender of paper-making machine
GB1546292A (en) Paper-making machine headbox
GB2013748B (en) Paper-making machine web-forming section with two wires
NZ184228A (en) Delignifying cellulosic pulps using ozone at low consistency
JPS52152503A (en) Process for making cellulose pulp
AU3102077A (en) Treating lignocellulosic or cellulosic pulp
AU560978B2 (en) Bleaching cellulose pulp
AU498646B2 (en) Delignification
GB2051600B (en) Paper pulp screen
JPS5349109A (en) Paper stock refiner
AU554072B2 (en) Bleaching cellulose pulps with peroxides
NZ183120A (en) Peroxide bleaching of cellulose pulp
AU535076B2 (en) Bleaching cellulosic fibrous material
AU2362677A (en) Manufacturing pulp from fibrous material containing ligno- cellulose
JPS5349107A (en) Process for bleaching pulp with ozone
JPS52110905A (en) Improued paper from lauan pulp
JPS5540526A (en) Pulp canal hole expanding treatment needle