JPS524643B2 - - Google Patents

Info

Publication number
JPS524643B2
JPS524643B2 JP49146650A JP14665074A JPS524643B2 JP S524643 B2 JPS524643 B2 JP S524643B2 JP 49146650 A JP49146650 A JP 49146650A JP 14665074 A JP14665074 A JP 14665074A JP S524643 B2 JPS524643 B2 JP S524643B2
Authority
JP
Japan
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
JP49146650A
Other versions
JPS5094202A (ja
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 filed Critical
Publication of JPS5094202A publication Critical patent/JPS5094202A/ja
Publication of JPS524643B2 publication Critical patent/JPS524643B2/ja
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
    • D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Conductive Materials (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
JP49146650A 1973-12-20 1974-12-19 Expired JPS524643B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7317221A SE390549C (sv) 1973-12-20 1973-12-20 Sett att bleka cellulosahaltigt material med syre eller fritt syre innehallande gas i alkalisk miljo

Publications (2)

Publication Number Publication Date
JPS5094202A JPS5094202A (ja) 1975-07-26
JPS524643B2 true JPS524643B2 (ja) 1977-02-05

Family

ID=20319462

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49146650A Expired JPS524643B2 (ja) 1973-12-20 1974-12-19

Country Status (12)

Country Link
JP (1) JPS524643B2 (ja)
BR (1) BR7410652D0 (ja)
CA (1) CA1065105A (ja)
DE (1) DE2460144B2 (ja)
FI (1) FI52878C (ja)
FR (1) FR2255419B1 (ja)
GB (1) GB1452710A (ja)
IT (1) IT1027773B (ja)
NO (1) NO142128C (ja)
SE (1) SE390549C (ja)
SU (1) SU850019A3 (ja)
ZA (1) ZA747918B (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS563214Y2 (ja) * 1978-05-15 1981-01-24

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4209359A (en) * 1978-10-23 1980-06-24 International Paper Company Process for removing residual oxygen from oxygen-bleached pulp
SE462919B (sv) * 1979-05-11 1990-09-17 Sunds Defibrator Ind Ab Saett att genomfoera alkaliextraktion av cellulosamassa i naervaro av syre
US4574032A (en) * 1979-10-15 1986-03-04 Westvaco Corporation Process for delignification of lignocellulosic material in the presence of anthraquinone in solution with white and black liquors
SE452896B (sv) * 1985-01-24 1987-12-21 Aga Ab Forfarande for behandling av cellulosamassor
SE460202B (sv) * 1987-03-13 1989-09-18 Aga Ab Saett vid behandling av ett material med en gas i en vaetska
FI89516B (fi) * 1989-05-10 1993-06-30 Ahlstroem Oy Foerfarande foer blekning av cellulosamassa med otson
US5460696A (en) * 1993-08-12 1995-10-24 The Boc Group, Inc. Oxygen delignification method incorporating wood pulp mixing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS563214Y2 (ja) * 1978-05-15 1981-01-24

Also Published As

Publication number Publication date
NO142128C (no) 1980-07-02
SE390549B (sv) 1976-12-27
NO744609L (ja) 1975-07-14
JPS5094202A (ja) 1975-07-26
DE2460144A1 (de) 1975-07-03
SU850019A3 (ru) 1981-07-23
ZA747918B (en) 1975-12-31
FI52878B (ja) 1977-08-31
SE7317221L (ja) 1975-06-23
CA1065105A (en) 1979-10-30
SE390549C (sv) 1986-04-14
FR2255419B1 (ja) 1979-06-01
BR7410652D0 (pt) 1975-09-02
GB1452710A (en) 1976-10-13
FR2255419A1 (ja) 1975-07-18
FI52878C (fi) 1987-09-24
FI370274A (ja) 1975-06-21
IT1027773B (it) 1978-12-20
NO142128B (no) 1980-03-24
DE2460144B2 (de) 1977-03-03

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