FI53007B - - Google Patents

Info

Publication number
FI53007B
FI53007B FI3584/68A FI358468A FI53007B FI 53007 B FI53007 B FI 53007B FI 3584/68 A FI3584/68 A FI 3584/68A FI 358468 A FI358468 A FI 358468A FI 53007 B FI53007 B FI 53007B
Authority
FI
Finland
Application number
FI3584/68A
Other languages
Finnish (fi)
Inventor
David Walton Clayton
Raimbault Michel Anto Montigny
Norman Liebergott
Original Assignee
Pulp Paper Res Inst
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 Pulp Paper Res Inst filed Critical Pulp Paper Res Inst
Application granted granted Critical
Publication of FI53007B publication Critical patent/FI53007B/fi

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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI3584/68A 1967-12-15 1968-12-13 FI53007B (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA7696 1967-12-15

Publications (1)

Publication Number Publication Date
FI53007B true FI53007B (enrdf_load_stackoverflow) 1977-09-30

Family

ID=4083942

Family Applications (1)

Application Number Title Priority Date Filing Date
FI3584/68A FI53007B (enrdf_load_stackoverflow) 1967-12-15 1968-12-13

Country Status (4)

Country Link
US (1) US3617432A (enrdf_load_stackoverflow)
CA (1) CA849982A (enrdf_load_stackoverflow)
FI (1) FI53007B (enrdf_load_stackoverflow)
SE (1) SE358679B (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU3102077A (en) * 1976-12-01 1979-06-07 New Zealand Dev Finance Treating lignocellulosic or cellulosic pulp
SE422818B (sv) * 1978-03-31 1982-03-29 Modo Chemetrics Ab Forfarande for foredling av allulosamassa genom blekning eller extrahering
US20030150065A1 (en) * 1998-12-30 2003-08-14 Sheng-Hsin Hu Liquid ammonia explosion treatment of wood fibers
US8262850B2 (en) * 2003-09-23 2012-09-11 International Paper Company Chemical activation and refining of southern pine kraft fibers
ATE555249T1 (de) 2005-05-02 2012-05-15 Int Paper Co Lignocellulosische materialien und daraus hergestellte produkte
WO2018175135A1 (en) 2017-03-21 2018-09-27 International Paper Company Odor control pulp composition

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1890179A (en) * 1928-06-15 1932-12-06 Champion Fibre Company Preparing refined bleached pulp
US2186034A (en) * 1937-08-24 1940-01-09 Champion Paper & Fibre Co Pulp bleaching and refining process
CA752864A (en) * 1965-10-12 1967-02-14 Pulp And Paper Research Institute Of Canada Extraction of fibrous cellulosic material with ammonia following treatment with chlorine, chlorine dioxide or other reagents

Also Published As

Publication number Publication date
CA849982A (en) 1970-08-25
SE358679B (enrdf_load_stackoverflow) 1973-08-06
US3617432A (en) 1971-11-02

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