FI43808B - - Google Patents

Info

Publication number
FI43808B
FI43808B FI1492/64A FI149264A FI43808B FI 43808 B FI43808 B FI 43808B FI 1492/64 A FI1492/64 A FI 1492/64A FI 149264 A FI149264 A FI 149264A FI 43808 B FI43808 B FI 43808B
Authority
FI
Finland
Application number
FI1492/64A
Other languages
Finnish (fi)
Other versions
FI43808C (fi
Inventor
W Rapson
Original Assignee
A & W 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 A & W Ltd filed Critical A & W Ltd
Publication of FI43808B publication Critical patent/FI43808B/fi
Application granted granted Critical
Publication of FI43808C publication Critical patent/FI43808C/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
    • D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
FI641492A 1963-07-12 1964-07-11 Menetelmä selluloosamateriaalin valkaisemiseksi veteen lietettynä FI43808C (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA879968 1963-07-12

Publications (2)

Publication Number Publication Date
FI43808B true FI43808B (enrdf_load_html_response) 1971-03-01
FI43808C FI43808C (fi) 1977-09-27

Family

ID=4141767

Family Applications (1)

Application Number Title Priority Date Filing Date
FI641492A FI43808C (fi) 1963-07-12 1964-07-11 Menetelmä selluloosamateriaalin valkaisemiseksi veteen lietettynä

Country Status (12)

Country Link
US (1) US3536577A (enrdf_load_html_response)
JP (1) JPS5235761B1 (enrdf_load_html_response)
AT (1) AT265008B (enrdf_load_html_response)
CH (1) CH486596A (enrdf_load_html_response)
DE (1) DE1546226B1 (enrdf_load_html_response)
ES (1) ES301960A1 (enrdf_load_html_response)
FI (1) FI43808C (enrdf_load_html_response)
FR (1) FR1407286A (enrdf_load_html_response)
GB (1) GB1007697A (enrdf_load_html_response)
NL (2) NL6407863A (enrdf_load_html_response)
OA (1) OA00199A (enrdf_load_html_response)
SE (1) SE301583B (enrdf_load_html_response)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE334286B (enrdf_load_html_response) * 1968-12-05 1971-04-19 Mo Och Domsjoe Ab
SE391750B (sv) * 1974-03-21 1977-02-28 Kamyr Ab Sett att i ett kerl kontinuerligt behandla cellulosamassa med klor
JPS5422857U (enrdf_load_html_response) * 1977-07-14 1979-02-15
US4325783A (en) * 1978-03-30 1982-04-20 Erco Industries Limited Bleaching procedure using chlorine dioxide and chlorine solutions
JPS5542838U (enrdf_load_html_response) * 1978-09-13 1980-03-19
US4299653A (en) * 1979-04-16 1981-11-10 Erco Industries Limited Method of bleaching pulp with an aqueous solution of chlorine dioxide and chlorine followed by a chlorine solution
WO2000075420A1 (en) * 1999-06-08 2000-12-14 Eastern Pulp And Paper Corporation Bleaching pulp with high-pressure o¿2?

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494542A (en) * 1946-05-02 1950-01-17 Niagara Alkali Company Method of bleaching pulp
CH315608A (fr) * 1952-03-26 1956-08-31 Electro Chimie Metal Procédé de blanchiment de pâtes de cellulose au sulfite ou au sulfate
BE518419A (enrdf_load_html_response) * 1952-03-26
US3020196A (en) * 1960-08-05 1962-02-06 Allied Chem Production of high brightness high strength wood pulps

Also Published As

Publication number Publication date
DE1546226B1 (de) 1970-11-26
US3536577A (en) 1970-10-27
SE301583B (enrdf_load_html_response) 1968-06-10
OA00199A (fr) 1966-03-15
AT265008B (de) 1968-09-25
CH486596A (de) 1970-02-28
FR1407286A (fr) 1965-07-30
ES301960A1 (es) 1965-01-16
FI43808C (fi) 1977-09-27
NL134770C (enrdf_load_html_response)
GB1007697A (en) 1965-10-22
JPS5235761B1 (enrdf_load_html_response) 1977-09-10
NL6407863A (enrdf_load_html_response) 1965-01-13

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