ATA50195A - Bleaching agent for bleaching secondary fibers for the manufacture of paper - Google Patents

Bleaching agent for bleaching secondary fibers for the manufacture of paper

Info

Publication number
ATA50195A
ATA50195A AT50195A AT50195A ATA50195A AT A50195 A ATA50195 A AT A50195A AT 50195 A AT50195 A AT 50195A AT 50195 A AT50195 A AT 50195A AT A50195 A ATA50195 A AT A50195A
Authority
AT
Austria
Prior art keywords
bleaching
paper
manufacture
secondary fibers
agent
Prior art date
Application number
AT50195A
Other languages
German (de)
Other versions
AT407762B (en
Original Assignee
Brueggemann L Kg
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 Brueggemann L Kg filed Critical Brueggemann L Kg
Publication of ATA50195A publication Critical patent/ATA50195A/en
Application granted granted Critical
Publication of AT407762B publication Critical patent/AT407762B/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
    • D21C5/02—Working-up waste paper
    • D21C5/022—Chemicals therefor
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • 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
    • D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
    • D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
AT0050195A 1994-03-22 1995-03-21 Bleaching agent for bleaching secondary fibrous materials for papermaking AT407762B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4409849 1994-03-22

Publications (2)

Publication Number Publication Date
ATA50195A true ATA50195A (en) 2000-10-15
AT407762B AT407762B (en) 2001-06-25

Family

ID=6513507

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0050195A AT407762B (en) 1994-03-22 1995-03-21 Bleaching agent for bleaching secondary fibrous materials for papermaking

Country Status (2)

Country Link
AT (1) AT407762B (en)
DE (1) DE19510278C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19743759A1 (en) * 1997-10-02 1999-04-08 Brueggemann L Kg New sulfinic acid derivatives, used as reducing agents

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079135A (en) * 1965-03-05 1967-08-16 Hardman & Holden Ltd Improvements relating to bleaching of wood pulp
GB1404315A (en) * 1971-09-15 1975-08-28 Albright & Wilson Production of bleached high yield pulp
DE3309956C1 (en) * 1983-03-19 1984-07-12 Degussa Ag, 6000 Frankfurt Process for bleaching paper raw materials
DE3406322A1 (en) * 1984-02-22 1985-08-22 Basf Ag, 6700 Ludwigshafen STABILIZED, WATER-CONTAINING, ALKALINE-SET SODIUM DITHIONITE PREPARATIONS
DE3616816A1 (en) * 1986-05-17 1987-11-19 Degussa METHOD FOR REMOVING BULK COLORED PAPER AND SELF-COPYING PAPER
US5458737A (en) * 1993-07-27 1995-10-17 Hoechst Celanese Corporation Quaternary compounds as brightness enhancers

Also Published As

Publication number Publication date
AT407762B (en) 2001-06-25
DE19510278C2 (en) 1997-03-13
DE19510278A1 (en) 1995-09-28

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee