CA937357A - Single stage delignification and bleaching process - Google Patents

Single stage delignification and bleaching process

Info

Publication number
CA937357A
CA937357A CA100407A CA100407A CA937357A CA 937357 A CA937357 A CA 937357A CA 100407 A CA100407 A CA 100407A CA 100407 A CA100407 A CA 100407A CA 937357 A CA937357 A CA 937357A
Authority
CA
Canada
Prior art keywords
single stage
bleaching process
stage delignification
delignification
bleaching
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
CA100407A
Other languages
English (en)
Other versions
CA100407S (en
Inventor
K. Roymoulik Sunanda
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.)
International Paper Co
Original Assignee
International Paper Co
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 International Paper Co filed Critical International Paper Co
Application granted granted Critical
Publication of CA937357A publication Critical patent/CA937357A/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
    • D21C9/1026—Other features in bleaching processes
    • D21C9/1036—Use of compounds accelerating or improving the efficiency of the processes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/77—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof
    • D06M11/79—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with silicon or compounds thereof with silicon dioxide, silicic acids or their salts

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
CA100407A 1970-05-25 1970-12-11 Single stage delignification and bleaching process Expired CA937357A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4042970A 1970-05-25 1970-05-25

Publications (1)

Publication Number Publication Date
CA937357A true CA937357A (en) 1973-11-27

Family

ID=21910939

Family Applications (1)

Application Number Title Priority Date Filing Date
CA100407A Expired CA937357A (en) 1970-05-25 1970-12-11 Single stage delignification and bleaching process

Country Status (7)

Country Link
US (1) US3716448A (enExample)
JP (1) JPS563477B1 (enExample)
CA (1) CA937357A (enExample)
DE (1) DE2122804A1 (enExample)
FI (1) FI56713C (enExample)
FR (1) FR2093716A5 (enExample)
SE (1) SE375566C (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4338158A (en) * 1976-04-09 1982-07-06 Weyerhaeuser Company Pulping in the presence of a protector
JPS61161791U (enExample) * 1985-03-29 1986-10-07
SE8704041L (sv) * 1987-10-16 1989-04-17 Sca Development Ab Saett vid blekning av cellulosamassa

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1387853A (fr) * 1963-09-19 1965-02-05 Air Liquide Délignification et blanchiment des pâtes cellulosiques chimiques et mi-chimiques

Also Published As

Publication number Publication date
US3716448A (en) 1973-02-13
SE375566B (enExample) 1975-04-21
DE2122804A1 (de) 1971-12-02
FI56713C (fi) 1981-11-09
FI56713B (fi) 1979-11-30
JPS563477B1 (enExample) 1981-01-24
FR2093716A5 (enExample) 1972-01-28
SE375566C (sv) 1984-07-16

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