FI761171A - - Google Patents

Info

Publication number
FI761171A
FI761171A FI761171A FI761171A FI761171A FI 761171 A FI761171 A FI 761171A FI 761171 A FI761171 A FI 761171A FI 761171 A FI761171 A FI 761171A FI 761171 A FI761171 A FI 761171A
Authority
FI
Finland
Application number
FI761171A
Other languages
Finnish (fi)
Other versions
FI55878C (fi
FI55878B (fi
Inventor
Johan Gullichsen
Frey Viking Sundman
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Priority to FI761171A priority Critical patent/FI55878C/fi
Priority to SE7704081A priority patent/SE7704081L/
Priority to FR7711992A priority patent/FR2349677A1/fr
Priority to JP52046900A priority patent/JPS6044438B2/ja
Priority to BR7702604A priority patent/BR7702604A/pt
Priority to DE2718398A priority patent/DE2718398C3/de
Priority to CA000277155A priority patent/CA1118161A/en
Priority to NO771460A priority patent/NO149552C/no
Publication of FI761171A publication Critical patent/FI761171A/fi
Priority to US05/921,370 priority patent/US4222818A/en
Application granted granted Critical
Publication of FI55878B publication Critical patent/FI55878B/fi
Publication of FI55878C publication Critical patent/FI55878C/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
    • D21C9/1026—Other features in bleaching processes
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI761171A 1976-04-28 1976-04-28 Foerfarande foer behandling av lignocellulosamaterial med klor FI55878C (fi)

Priority Applications (9)

Application Number Priority Date Filing Date Title
FI761171A FI55878C (fi) 1976-04-28 1976-04-28 Foerfarande foer behandling av lignocellulosamaterial med klor
SE7704081A SE7704081L (sv) 1976-04-28 1977-04-06 Forfarande for behandling av lignocellulosamaterial med klor
FR7711992A FR2349677A1 (fr) 1976-04-28 1977-04-21 Procede de traitement de matiere ligno-cellulosique a l'aide de chlore
BR7702604A BR7702604A (pt) 1976-04-28 1977-04-25 Processo para tratar polpa contedo fibras de lingnocelulose com cloro
JP52046900A JPS6044438B2 (ja) 1976-04-28 1977-04-25 リグノ・セルロ−ス質繊維を含有するパルプの塩素による処理法
DE2718398A DE2718398C3 (de) 1976-04-28 1977-04-26 Verfahren zur Behandlung von lignozellulosehaltigem Material mit Chlor
CA000277155A CA1118161A (en) 1976-04-28 1977-04-27 Method for treatment of lignocellulosic material with chlorine
NO771460A NO149552C (no) 1976-04-28 1977-04-27 Fremgangsmaate for behandling av lignocelluloseholdig fibermasse
US05/921,370 US4222818A (en) 1976-04-28 1978-07-03 Method for treatment of lignocellulosic material with chlorine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI761171A FI55878C (fi) 1976-04-28 1976-04-28 Foerfarande foer behandling av lignocellulosamaterial med klor

Publications (3)

Publication Number Publication Date
FI761171A true FI761171A (no) 1977-10-29
FI55878B FI55878B (fi) 1979-06-29
FI55878C FI55878C (fi) 1979-10-10

Family

ID=8509954

Family Applications (1)

Application Number Title Priority Date Filing Date
FI761171A FI55878C (fi) 1976-04-28 1976-04-28 Foerfarande foer behandling av lignocellulosamaterial med klor

Country Status (9)

Country Link
US (1) US4222818A (no)
JP (1) JPS6044438B2 (no)
BR (1) BR7702604A (no)
CA (1) CA1118161A (no)
DE (1) DE2718398C3 (no)
FI (1) FI55878C (no)
FR (1) FR2349677A1 (no)
NO (1) NO149552C (no)
SE (1) SE7704081L (no)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016118411A1 (en) 2015-01-21 2016-07-28 Resinate Materials Group, Inc. High recycle content polyols from thermoplastic polyesters and lignin or tannin

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2046551A (en) * 1931-09-08 1936-07-07 David B Davies Process of bleaching chemical wood pulp
US2127765A (en) * 1937-07-23 1938-08-23 Niagara Alkali Company Bleaching pulp
US2730426A (en) * 1951-06-20 1956-01-10 Cellulose Dev Corp Ltd Treating vegetable fibrous material with chlorine gas
GB770751A (en) * 1952-12-31 1957-03-27 Edwards And Company London Ltd Improvements in or relating to the vaporisation of aluminium
US3298900A (en) * 1963-03-22 1967-01-17 Kamyr Ab Method and apparatus for the continuous bleaching of cellulosic pulp
SE340216B (no) * 1967-11-06 1971-11-08 Kamyr Ab
US3802958A (en) * 1968-11-07 1974-04-09 Mo Och Domsjoe Ab Chlorination of cellulose pulp
SE334286B (no) * 1968-12-05 1971-04-19 Mo Och Domsjoe Ab
US3966542A (en) * 1974-09-20 1976-06-29 General Signal Corporation Multi-stage bleaching of pulp using successively lower power levels
SE389351B (sv) * 1975-03-14 1976-11-01 Kamyr Ab Sett och anordning for fordelning och inblandning av gas och/eller vetska i massasuspensioner av hog koncentration.

Also Published As

Publication number Publication date
FR2349677B1 (no) 1981-03-27
JPS52132103A (en) 1977-11-05
DE2718398A1 (de) 1977-11-03
NO771460L (no) 1977-10-31
FI55878C (fi) 1979-10-10
US4222818A (en) 1980-09-16
DE2718398B2 (de) 1978-07-06
NO149552B (no) 1984-01-30
JPS6044438B2 (ja) 1985-10-03
CA1118161A (en) 1982-02-16
SE7704081L (sv) 1977-10-29
FI55878B (fi) 1979-06-29
FR2349677A1 (fr) 1977-11-25
DE2718398C3 (de) 1979-03-15
BR7702604A (pt) 1978-03-28
NO149552C (no) 1984-05-09

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: KAMYR AB