JPH0229791B2 - - Google Patents

Info

Publication number
JPH0229791B2
JPH0229791B2 JP63235132A JP23513288A JPH0229791B2 JP H0229791 B2 JPH0229791 B2 JP H0229791B2 JP 63235132 A JP63235132 A JP 63235132A JP 23513288 A JP23513288 A JP 23513288A JP H0229791 B2 JPH0229791 B2 JP H0229791B2
Authority
JP
Japan
Prior art keywords
pulp
bleaching
slurry
concentration
sodium
Prior art date
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 - Lifetime
Application number
JP63235132A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0197291A (ja
Inventor
Aberii Hiruzu Uiriamu
Chaaruzu Richaazu Josefu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FMC Corp
Original Assignee
FMC Corp
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 FMC Corp filed Critical FMC Corp
Publication of JPH0197291A publication Critical patent/JPH0197291A/ja
Publication of JPH0229791B2 publication Critical patent/JPH0229791B2/ja
Granted 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
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Glass Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
JP63235132A 1987-10-05 1988-09-21 機械パルプの漂白方法 Granted JPH0197291A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US104607 1979-12-17
US10460787A 1987-10-05 1987-10-05

Publications (2)

Publication Number Publication Date
JPH0197291A JPH0197291A (ja) 1989-04-14
JPH0229791B2 true JPH0229791B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1990-07-02

Family

ID=22301388

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63235132A Granted JPH0197291A (ja) 1987-10-05 1988-09-21 機械パルプの漂白方法

Country Status (7)

Country Link
EP (1) EP0311356A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPH0197291A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU2335788A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BR (1) BR8805098A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FI (1) FI884558L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NO (1) NO884398L (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ZA (1) ZA887477B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
BE1004630A3 (fr) * 1990-10-17 1992-12-22 Interox Internat Sa Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
SE515708C2 (sv) * 2000-02-11 2001-10-01 Mo Och Domsjoe Ab Blekning av förblekt mekanisk massa med oxiderande blekmedel förstärkt med borhydrid
US11591751B2 (en) 2019-09-17 2023-02-28 Gpcp Ip Holdings Llc High efficiency fiber bleaching process
US12286751B2 (en) 2021-01-06 2025-04-29 Gpcp Ip Holdings Llc Oxygen treatment of high kappa fibers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2290601A (en) * 1940-02-16 1942-07-21 Du Pont Bleaching of ground wood pulp with preliminary bisulphite treatment
DE834808C (de) * 1950-08-31 1952-03-24 Degussa Verfahren zum Bleichen von mechanisch erzeugten, schwer bleichbaren Faserstoffen, insbesondere Holzschliff
DE1171723B (de) * 1958-11-27 1964-06-04 Mo Och Domsjoe Ab Verfahren zum Veredeln von cellulose-haltigem Material
JPS575992A (en) * 1980-06-04 1982-01-12 Mitsubishi Gas Chemical Co Bleaching of high yield pulp by peroxide
FR2604197B1 (fr) * 1986-09-23 1988-11-18 Atochem Procede de blanchiment de matieres lignocellulosiques.

Also Published As

Publication number Publication date
NO884398L (no) 1989-04-06
FI884558A0 (fi) 1988-10-04
ZA887477B (en) 1989-06-28
FI884558A7 (fi) 1989-04-06
FI884558L (fi) 1989-04-06
EP0311356A1 (en) 1989-04-12
AU2335788A (en) 1989-05-25
JPH0197291A (ja) 1989-04-14
BR8805098A (pt) 1989-05-16
NO884398D0 (no) 1988-10-04

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