[go: up one dir, main page]

ZA823048B - Process for bleaching chemically produced pulp - Google Patents

Process for bleaching chemically produced pulp

Info

Publication number
ZA823048B
ZA823048B ZA823048A ZA823048A ZA823048B ZA 823048 B ZA823048 B ZA 823048B ZA 823048 A ZA823048 A ZA 823048A ZA 823048 A ZA823048 A ZA 823048A ZA 823048 B ZA823048 B ZA 823048B
Authority
ZA
South Africa
Prior art keywords
chemically produced
produced pulp
bleaching
bleaching chemically
pulp
Prior art date
Application number
ZA823048A
Other languages
English (en)
Inventor
Rudolf Patt
Othar Kordsachia
Long Kuo Wang David
Original Assignee
Mannesmann Ag
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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of ZA823048B publication Critical patent/ZA823048B/xx

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
    • D21C9/1063—Bleaching ; Apparatus therefor with compounds not otherwise provided for, e.g. activated gases
    • 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
ZA823048A 1981-05-09 1982-05-04 Process for bleaching chemically produced pulp ZA823048B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3118384A DE3118384C1 (de) 1981-05-09 1981-05-09 Verfahren zum Bleichen von chemisch hergestelltem Zellstoff mit Ozon

Publications (1)

Publication Number Publication Date
ZA823048B true ZA823048B (en) 1983-03-30

Family

ID=6131844

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA823048A ZA823048B (en) 1981-05-09 1982-05-04 Process for bleaching chemically produced pulp

Country Status (9)

Country Link
JP (1) JPS57191388A (no)
AT (1) ATA167682A (no)
BR (1) BR8202532A (no)
DE (1) DE3118384C1 (no)
FI (1) FI821265A0 (no)
FR (1) FR2505377A1 (no)
NO (1) NO821525L (no)
SE (1) SE8202603L (no)
ZA (1) ZA823048B (no)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404740B (de) * 1989-10-30 1999-02-25 Chemiefaser Lenzing Ag Verfahren zum chlorfreien bleichen von zellstoffen
DE4107356C1 (no) * 1991-03-08 1992-11-05 Acetocell Gmbh & Co Kg, 7162 Gschwend, De
US5364503A (en) * 1992-02-20 1994-11-15 Macmillan Bloedel Limited Nitric oxide treatment for ozone bleaching

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR432552A (fr) * 1911-07-25 1911-12-09 Claude Achilles Meygret Perfectionnements dans le blanchiment des fibres végétales, des pulpes végétales et leur équivalent
FR2158873A5 (en) * 1972-10-09 1973-06-15 Bourit Jean Pierre Bleaching of wood cellulose - using nitrogen oxides
GB1505070A (en) * 1974-06-11 1978-03-22 Canadian Ind Process for bleaching of lignocellulosic material
CA1070909A (en) * 1976-05-04 1980-02-05 Canadian Industries Limited Nitrogen dioxide-oxygen delignification
GB1590704A (en) * 1976-11-23 1981-06-10 Defibrator Ab Method end device for the continuous production of pulp from fibrous lignocellulosic materials

Also Published As

Publication number Publication date
SE8202603L (sv) 1982-11-10
ATA167682A (de) 1985-04-15
BR8202532A (pt) 1983-04-19
NO821525L (no) 1982-11-10
FI821265A0 (fi) 1982-04-08
JPS57191388A (en) 1982-11-25
DE3118384C1 (de) 1982-11-11
FR2505377A1 (fr) 1982-11-12

Similar Documents

Publication Publication Date Title
YU139984A (en) Process for making glucoamylasic encyme
YU156384A (en) Process for making 1-heteroaryl-4-
DE3276024D1 (en) Process for bleaching colour-photographic materials
ZA836420B (en) Kraft pulping process
AU551287B2 (en) Method for the delignifying bleaching of cellulose pulp
NZ196664A (en) Process for oxygen bleaching cellulose pulp
ZA84173B (en) Processes for bleaching wood pulp
DE3464267D1 (en) Pulp washing process
PT72863B (en) Process for chemically modifying starch
JPS57203482A (en) Operation of washing machine
DE3276581D1 (en) Laundry bleach product
ZA823048B (en) Process for bleaching chemically produced pulp
DE3461788D1 (en) Process for making nitrodiarylamines
JPS5795392A (en) Alkali pulping method
JPS57154489A (en) Pulp bleaching method
ZA887477B (en) Process for bleaching mechanical pulp
GB2103197B (en) Process for bleaching natural chalk
AU552271B2 (en) Bleaching cellulose pulp
JPS57128289A (en) Pulp making method
ZA82985B (en) Method and apparatus for bleaching chemically produced pulp
DE3260739D1 (en) Process for making 2-carbalkoxy-5-carboxynitrobenzenes
DE3271943D1 (en) Process for making triazoles
DE3273891D1 (en) Process for making pyridyloxyphenol compounds
JPS57112486A (en) Alkali pulp digesting method
JPS57154488A (en) Pulp washing apparatus