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CA1111607A - Pulping procedure - Google Patents

Pulping procedure

Info

Publication number
CA1111607A
CA1111607A CA323,926A CA323926A CA1111607A CA 1111607 A CA1111607 A CA 1111607A CA 323926 A CA323926 A CA 323926A CA 1111607 A CA1111607 A CA 1111607A
Authority
CA
Canada
Prior art keywords
chlorine
bleaching
pulp
chlorine dioxide
effected
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.)
Expired
Application number
CA323,926A
Other languages
English (en)
French (fr)
Inventor
Douglas W. Reeve
W. Howard Rapson
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.)
Erco Industries Ltd
Original Assignee
Erco Industries 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 Industries Ltd filed Critical Erco Industries Ltd
Application granted granted Critical
Publication of CA1111607A publication Critical patent/CA1111607A/en
Expired 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
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
    • 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)
CA323,926A 1978-03-30 1979-03-21 Pulping procedure Expired CA1111607A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1243378 1978-03-30
GB12433/78 1978-03-30

Publications (1)

Publication Number Publication Date
CA1111607A true CA1111607A (en) 1981-11-03

Family

ID=10004518

Family Applications (1)

Application Number Title Priority Date Filing Date
CA323,926A Expired CA1111607A (en) 1978-03-30 1979-03-21 Pulping procedure

Country Status (15)

Country Link
JP (1) JPS54134104A (xx)
AR (1) AR220185A1 (xx)
AT (1) AT376249B (xx)
AU (1) AU535076B2 (xx)
CA (1) CA1111607A (xx)
CS (1) CS231164B2 (xx)
DE (1) DE2911334A1 (xx)
ES (1) ES479062A1 (xx)
FI (1) FI791065A (xx)
FR (1) FR2421242A1 (xx)
NZ (1) NZ189914A (xx)
PL (1) PL116704B1 (xx)
PT (1) PT69361B (xx)
SE (1) SE7902741L (xx)
ZA (1) ZA791174B (xx)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4325783A (en) 1978-03-30 1982-04-20 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions
US4409066A (en) * 1978-03-30 1983-10-11 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions
CA1120660A (en) * 1979-04-16 1982-03-30 Douglas W. Reeve Bleaching sequence
US4406736A (en) * 1979-11-29 1983-09-27 Erco Industries Limited Method of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solution
US4421598A (en) * 1981-08-17 1983-12-20 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE28884E (en) * 1965-06-28 1976-06-29 Hooker Chemicals & Plastics Corporation Woodpulp bleaching process
CA926056A (en) * 1966-01-10 1973-05-15 C. Logan Kenneth Process of bleaching woodpulp

Also Published As

Publication number Publication date
AR220185A1 (es) 1980-10-15
ATA239479A (de) 1984-03-15
JPS54134104A (en) 1979-10-18
CS231164B2 (en) 1984-10-15
NZ189914A (en) 1981-07-13
PT69361B (en) 1986-11-13
AT376249B (de) 1984-10-25
FI791065A (fi) 1979-10-01
AU4557479A (en) 1979-10-04
ZA791174B (en) 1980-10-29
ES479062A1 (es) 1979-07-01
AU535076B2 (en) 1984-03-01
PL214517A1 (xx) 1979-12-03
PL116704B1 (en) 1981-06-30
FR2421242B1 (xx) 1985-04-26
SE7902741L (sv) 1979-10-01
FR2421242A1 (fr) 1979-10-26
PT69361A (en) 1979-04-01
DE2911334A1 (de) 1979-10-18

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