FI59127C - Saett foer blekning av cellulosamassa - Google Patents

Saett foer blekning av cellulosamassa Download PDF

Info

Publication number
FI59127C
FI59127C FI750776A FI750776A FI59127C FI 59127 C FI59127 C FI 59127C FI 750776 A FI750776 A FI 750776A FI 750776 A FI750776 A FI 750776A FI 59127 C FI59127 C FI 59127C
Authority
FI
Finland
Prior art keywords
pulp
chlorine
treatment
concentration
bleaching
Prior art date
Application number
FI750776A
Other languages
English (en)
Finnish (fi)
Other versions
FI59127B (fi
FI750776A7 (show.php
Inventor
Nils Georg Norberg
Punya Brata Chaudhuri
Original Assignee
Kamyr Ab
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 Kamyr Ab filed Critical Kamyr Ab
Publication of FI750776A7 publication Critical patent/FI750776A7/fi
Application granted granted Critical
Publication of FI59127B publication Critical patent/FI59127B/fi
Publication of FI59127C publication Critical patent/FI59127C/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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
FI750776A 1974-03-21 1975-03-17 Saett foer blekning av cellulosamassa FI59127C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE7403806 1974-03-21
SE7403806A SE391750B (sv) 1974-03-21 1974-03-21 Sett att i ett kerl kontinuerligt behandla cellulosamassa med klor

Publications (3)

Publication Number Publication Date
FI750776A7 FI750776A7 (show.php) 1975-09-22
FI59127B FI59127B (fi) 1981-02-27
FI59127C true FI59127C (fi) 1981-06-10

Family

ID=20320592

Family Applications (1)

Application Number Title Priority Date Filing Date
FI750776A FI59127C (fi) 1974-03-21 1975-03-17 Saett foer blekning av cellulosamassa

Country Status (3)

Country Link
US (1) US3992250A (show.php)
FI (1) FI59127C (show.php)
SE (1) SE391750B (show.php)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480089A (en) * 1983-06-14 1984-10-30 Purdue Research Foundation Modified cellulose products by bleaching
DE3581034D1 (de) * 1984-10-03 1991-02-07 Teijin Ltd Faser aus modifiziertem polyester und verfahren zu deren herstellung.
KR20010104030A (ko) * 2000-05-12 2001-11-24 김승철 사탕수수 찌꺼기를 이용한 펄프 원료의 생산 방법
KR100476468B1 (ko) * 2001-07-24 2005-03-17 주식회사 코오롱 알칼리 이용성 폴리에스테르의 제조방법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2514503A (en) * 1947-07-30 1950-07-11 Buffalo Electro Chem Co Method of bleaching moist felted groundwood pulp
US2730426A (en) * 1951-06-20 1956-01-10 Cellulose Dev Corp Ltd Treating vegetable fibrous material with chlorine gas
NL134770C (show.php) * 1963-07-12
US3433702A (en) * 1965-06-28 1969-03-18 Hooker Chemical Corp Woodpulp bleaching process
US3455777A (en) * 1965-10-29 1969-07-15 Dow Chemical Co Method of bleaching kraft pulp sheet
US3579419A (en) * 1967-04-24 1971-05-18 Pulp Paper Res Inst Treatment of fluffed pulp fibers with gaseous chlorine
US3501374A (en) * 1968-12-26 1970-03-17 Hooker Chemical Corp Sequential bleaching of kraft pulp with chlorine dioxide and chlorine

Also Published As

Publication number Publication date
SE391750B (sv) 1977-02-28
US3992250A (en) 1976-11-16
FI59127B (fi) 1981-02-27
FI750776A7 (show.php) 1975-09-22

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: KAMYR AB