ATE207153T1 - METHOD FOR PRODUCING BLEACHED SPECIAL PULP - Google Patents

METHOD FOR PRODUCING BLEACHED SPECIAL PULP

Info

Publication number
ATE207153T1
ATE207153T1 AT97108710T AT97108710T ATE207153T1 AT E207153 T1 ATE207153 T1 AT E207153T1 AT 97108710 T AT97108710 T AT 97108710T AT 97108710 T AT97108710 T AT 97108710T AT E207153 T1 ATE207153 T1 AT E207153T1
Authority
AT
Austria
Prior art keywords
special pulp
producing bleached
bleached
pulp
special
Prior art date
Application number
AT97108710T
Other languages
German (de)
Inventor
Jiri Voronecky
Joerg Kuehn
Original Assignee
Schoeller & Hoesch Papierfab
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 Schoeller & Hoesch Papierfab filed Critical Schoeller & Hoesch Papierfab
Application granted granted Critical
Publication of ATE207153T1 publication Critical patent/ATE207153T1/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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • 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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)

Abstract

Reduction of degradation of cellulose and its derivatives in the production of bleached special pulp from annual plants comprises using additives (I) that do not react with the half stuff, bleaching chemicals and other components of the bleaching liquor but inhibit degradation.
AT97108710T 1997-05-30 1997-05-30 METHOD FOR PRODUCING BLEACHED SPECIAL PULP ATE207153T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97108710A EP0881326B1 (en) 1997-05-30 1997-05-30 Process for producing bleached special cellulose pulps

Publications (1)

Publication Number Publication Date
ATE207153T1 true ATE207153T1 (en) 2001-11-15

Family

ID=8226853

Family Applications (1)

Application Number Title Priority Date Filing Date
AT97108710T ATE207153T1 (en) 1997-05-30 1997-05-30 METHOD FOR PRODUCING BLEACHED SPECIAL PULP

Country Status (6)

Country Link
EP (1) EP0881326B1 (en)
AT (1) ATE207153T1 (en)
DE (1) DE59704964D1 (en)
DK (1) DK0881326T3 (en)
ES (1) ES2164279T3 (en)
PT (1) PT881326E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR088787A1 (en) * 2011-08-30 2014-07-10 Cargill Inc PULP COMPOSITION

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2367771A (en) * 1941-10-08 1945-01-23 Mathieson Alkali Works Inc Bleaching cellulosic materials
US2478379A (en) * 1948-07-30 1949-08-09 Hercules Powder Co Ltd Cellulose bleaching
US4248663A (en) * 1978-07-05 1981-02-03 Pulp And Paper Research Institute Of Canada Pulping with an alkaline liquor containing a cyclic keto compound and an amino compound
SE434284B (en) * 1980-05-07 1984-07-16 Mo Och Domsjoe Ab PROCEDURES FOR OXYGEN DELIGNIFICATION OF CHEMICAL CONSUMPED CELLULOSAMASSA TO WHICH AROMATIC DIAMINES ARE PROVIDED
US4295928A (en) * 1980-08-07 1981-10-20 Nalco Chemical Company Phenolic compounds as viscosity preservatives during hypochlorite pulp bleaching
US4298428A (en) * 1980-08-07 1981-11-03 Nalco Chemical Company Use of additives in pulp bleaching processes to preserve pulp strength
US4487656A (en) * 1983-09-30 1984-12-11 Melamine Chemicals, Inc. Process for bleaching paper pulp using melamine as a viscosity stabilizer
JPS6112992A (en) * 1984-06-26 1986-01-21 新王子製紙株式会社 Bleaching of lignocellulose substance
DE4137761A1 (en) * 1991-05-17 1992-11-19 Call Hans Peter METHOD FOR DELIGNIFYING LIGNOCELLULOSE-CONTAINING MATERIAL, BLEACHING AND TREATING WASTEWATER BY LACCASE WITH EXTENDED EFFECTIVENESS
CA2190503A1 (en) * 1994-06-02 1995-12-14 Marco Solinas Ozone bleaching
US5529662A (en) * 1994-07-06 1996-06-25 Macmillan Bloedel Limited Method of bleaching cellulosic pulps with ozone and a protective amount of an N-alkylated urea

Also Published As

Publication number Publication date
DK0881326T3 (en) 2002-02-11
EP0881326A1 (en) 1998-12-02
ES2164279T3 (en) 2002-02-16
EP0881326B1 (en) 2001-10-17
PT881326E (en) 2002-04-29
DE59704964D1 (en) 2001-11-22

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Legal Events

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