JPS57191388A - Multi-stage bleaching of chemical pulp - Google Patents

Multi-stage bleaching of chemical pulp

Info

Publication number
JPS57191388A
JPS57191388A JP57073504A JP7350482A JPS57191388A JP S57191388 A JPS57191388 A JP S57191388A JP 57073504 A JP57073504 A JP 57073504A JP 7350482 A JP7350482 A JP 7350482A JP S57191388 A JPS57191388 A JP S57191388A
Authority
JP
Japan
Prior art keywords
chemical pulp
stage bleaching
bleaching
stage
pulp
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP57073504A
Other languages
Japanese (ja)
Inventor
Patsuto Rudorufu
Korutozahia Otaaru
Ronnkuo Wan Debuitsuto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
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 JPS57191388A publication Critical patent/JPS57191388A/en
Pending legal-status Critical Current

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)
JP57073504A 1981-05-09 1982-05-04 Multi-stage bleaching of chemical pulp Pending JPS57191388A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3118384A DE3118384C1 (en) 1981-05-09 1981-05-09 Process for bleaching chemically produced pulp with ozone

Publications (1)

Publication Number Publication Date
JPS57191388A true JPS57191388A (en) 1982-11-25

Family

ID=6131844

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57073504A Pending JPS57191388A (en) 1981-05-09 1982-05-04 Multi-stage bleaching of chemical pulp

Country Status (9)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404740B (en) * 1989-10-30 1999-02-25 Chemiefaser Lenzing Ag Process for the chlorine-free bleaching of pulps
DE4107356C1 (en) * 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 (en) * 1911-07-25 1911-12-09 Claude Achilles Meygret Improvements in the bleaching of vegetable fibers, vegetable pulps and their equivalents
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
FI61215B (en) * 1976-11-23 1982-02-26 Defibrator Ab SAFETY RANGE OF CONTAINER FRAMSTAELLA LIGNOCELLULOSAHALTIGA FIBERMATERIAL

Also Published As

Publication number Publication date
SE8202603L (en) 1982-11-10
NO821525L (en) 1982-11-10
ATA167682A (en) 1985-04-15
FR2505377A1 (en) 1982-11-12
DE3118384C1 (en) 1982-11-11
BR8202532A (en) 1983-04-19
FI821265A0 (en) 1982-04-08
ZA823048B (en) 1983-03-30

Similar Documents

Publication Publication Date Title
JPS57209805A (en) Manufacture of hydrogen peroxide from elements thereof
GB2112428B (en) Peroxygen bleaching composition
GB2086953B (en) Activation of hypochlorite bleaching of dyes
JPS5430902A (en) Industrial multistage pulp bleaching method
GB8405366D0 (en) Production of chemical compounds
GB8332434D0 (en) Production of chemical compounds
JPS57191388A (en) Multi-stage bleaching of chemical pulp
YU107481A (en) Process for chemical modification of starch
DE3276581D1 (en) Laundry bleach product
JPS57191387A (en) Multi-stage bleaching of mixed regenerated pulp
JPS5571894A (en) Drying of chemical or semiichemical pulp
ZA792563B (en) Bleaching of pulp
JPS5658086A (en) Multistage bleaching method of pulps
JPS57112485A (en) Production of pulp
JPS57191368A (en) Bleaching of fibers
JPS57133294A (en) Bleaching of pulp
JPS56148987A (en) Purification of cellulose pulp
JPS57188309A (en) Method of bleaching wood
JPS57154489A (en) Pulp bleaching method
AU539165B2 (en) Ozone effluent bleaching of pulp
JPS57106790A (en) Production of chemical pulp
JPS564793A (en) Delignifying of chemical raw pulp
JPS57112488A (en) Peroxide bleaching of pulp
JPS5789661A (en) Bleaching of fiber substance
JPS57121689A (en) Bleaching of cellulose pulp