BR9402833A - Process for bleaching a paper pulp and applying it - Google Patents

Process for bleaching a paper pulp and applying it

Info

Publication number
BR9402833A
BR9402833A BR9402833A BR9402833A BR9402833A BR 9402833 A BR9402833 A BR 9402833A BR 9402833 A BR9402833 A BR 9402833A BR 9402833 A BR9402833 A BR 9402833A BR 9402833 A BR9402833 A BR 9402833A
Authority
BR
Brazil
Prior art keywords
bleaching
applying
paper pulp
pulp
paper
Prior art date
Application number
BR9402833A
Other languages
Portuguese (pt)
Inventor
Pierre Ledoux
Buyl Eric De
Rene Detroz
Original Assignee
Solvay
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 Solvay filed Critical Solvay
Publication of BR9402833A publication Critical patent/BR9402833A/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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes
    • 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
    • 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
    • D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
BR9402833A 1993-07-15 1994-07-15 Process for bleaching a paper pulp and applying it BR9402833A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE9300745A BE1007272A3 (en) 1993-07-15 1993-07-15 Method of a pulp bleach.

Publications (1)

Publication Number Publication Date
BR9402833A true BR9402833A (en) 1995-04-04

Family

ID=3887196

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9402833A BR9402833A (en) 1993-07-15 1994-07-15 Process for bleaching a paper pulp and applying it

Country Status (11)

Country Link
EP (1) EP0634520A1 (en)
JP (1) JPH0748792A (en)
AU (1) AU682363B2 (en)
BE (1) BE1007272A3 (en)
BR (1) BR9402833A (en)
CA (1) CA2127582A1 (en)
FI (1) FI943388A (en)
NO (1) NO942651L (en)
NZ (1) NZ260982A (en)
YU (1) YU45394A (en)
ZA (1) ZA945110B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3610686B2 (en) * 1996-07-31 2005-01-19 王子製紙株式会社 Method for producing coated paper for printing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5179021A (en) * 1989-02-10 1993-01-12 Gil Inc. (Now Ici Canada Inc.) Pulp bleaching process comprising oxygen delignification and xylanase enzyme treatment
DE4008893A1 (en) * 1990-03-20 1991-09-26 Call Hans Peter METHOD FOR ENZYMATIC BLEACHING OF CELLULAS
NZ239500A (en) * 1990-08-24 1993-08-26 Novo Nordisk As Xylanases obtained from bacillus pumilus and use in a lignocellulosic chemical pulping process
DK30991D0 (en) * 1991-02-22 1991-02-22 Novo Nordisk As Hitherto UNKNOWN ENZYMS
AT400153B (en) * 1991-05-02 1995-10-25 Voest Alpine Ind Anlagen METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE

Also Published As

Publication number Publication date
CA2127582A1 (en) 1995-01-16
EP0634520A1 (en) 1995-01-18
FI943388A (en) 1995-01-16
JPH0748792A (en) 1995-02-21
AU6743194A (en) 1995-01-27
AU682363B2 (en) 1997-10-02
NZ260982A (en) 1994-12-22
NO942651D0 (en) 1994-07-14
BE1007272A3 (en) 1995-05-09
ZA945110B (en) 1995-02-23
YU45394A (en) 1996-10-18
NO942651L (en) 1995-01-16
FI943388A0 (en) 1994-07-15

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Legal Events

Date Code Title Description
FF Decision: intention to grant
FA11 Dismissal: dismissal - article 38, par. 2 of industrial property law