SE8002723L - IMPROVE BLACK SEQUENCE - Google Patents

IMPROVE BLACK SEQUENCE

Info

Publication number
SE8002723L
SE8002723L SE8002723A SE8002723A SE8002723L SE 8002723 L SE8002723 L SE 8002723L SE 8002723 A SE8002723 A SE 8002723A SE 8002723 A SE8002723 A SE 8002723A SE 8002723 L SE8002723 L SE 8002723L
Authority
SE
Sweden
Prior art keywords
chlorine
improve black
black sequence
solution
dissolved
Prior art date
Application number
SE8002723A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE445367B (en
Inventor
D W Reeve
Original Assignee
Erco Ind Ltd
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 Erco Ind Ltd filed Critical Erco Ind Ltd
Publication of SE8002723L publication Critical patent/SE8002723L/en
Publication of SE445367B publication Critical patent/SE445367B/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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06L—DRY-CLEANING, WASHING OR BLEACHING FIBRES, FILAMENTS, THREADS, YARNS, FABRICS, FEATHERS OR MADE-UP FIBROUS GOODS; BLEACHING LEATHER OR FURS
    • D06L4/00—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs
    • D06L4/20—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen
    • D06L4/22—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents
    • D06L4/24—Bleaching fibres, filaments, threads, yarns, fabrics, feathers or made-up fibrous goods; Bleaching leather or furs using agents which contain halogen using inorganic agents using chlorites or chlorine dioxide

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)

Abstract

11 The advantages of the serial application of chlorine dioxide and chlorine without intermediate wash during the bleaching of wood pulp in the absence of significant amounts of dissolved organic materials are improved by the presence of dissolved chlorine in the chlorine dioxide solution in an amount of 6 to 10% of the total available chlorine of that solution.
SE8002723A 1979-04-16 1980-04-10 PROCEDURE FOR WHITING CELLULOSABASED FIBER MATERIAL WITH CHLORIDE Dioxide AND CHLORINE IN SERIES SE445367B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3055779A 1979-04-16 1979-04-16

Publications (2)

Publication Number Publication Date
SE8002723L true SE8002723L (en) 1980-10-17
SE445367B SE445367B (en) 1986-06-16

Family

ID=21854784

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8002723A SE445367B (en) 1979-04-16 1980-04-10 PROCEDURE FOR WHITING CELLULOSABASED FIBER MATERIAL WITH CHLORIDE Dioxide AND CHLORINE IN SERIES

Country Status (9)

Country Link
JP (1) JPS55142787A (en)
AR (1) AR219443A1 (en)
BR (1) BR8002327A (en)
CA (1) CA1120660A (en)
CS (1) CS228128B2 (en)
FI (1) FI71964B (en)
FR (1) FR2454478A1 (en)
PL (1) PL123711B1 (en)
SE (1) SE445367B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5192362B2 (en) * 2008-12-16 2013-05-08 株式会社前川製作所 Method and apparatus for producing pulp bleaching water

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR94026E (en) * 1965-06-28 1969-06-20 Hooker Chemical Corp Process for bleaching cellulosic materials.
CA926056A (en) * 1966-01-10 1973-05-15 C. Logan Kenneth Process of bleaching woodpulp
FR1489262A (en) * 1966-06-28 1967-07-21 Canadian Ind Bleaching of wood pulp
US3501374A (en) * 1968-12-26 1970-03-17 Hooker Chemical Corp Sequential bleaching of kraft pulp with chlorine dioxide and chlorine
ZA791174B (en) * 1978-03-30 1980-10-29 Erco Ind Ltd Bleaching procedure

Also Published As

Publication number Publication date
FI71964B (en) 1986-11-28
FR2454478A1 (en) 1980-11-14
AR219443A1 (en) 1980-08-15
SE445367B (en) 1986-06-16
FR2454478B1 (en) 1983-09-23
CS228128B2 (en) 1984-05-14
CA1120660A (en) 1982-03-30
BR8002327A (en) 1980-12-02
PL123711B1 (en) 1982-11-30
JPS55142787A (en) 1980-11-07
PL223468A1 (en) 1981-03-27
FI801103A (en) 1980-10-17

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