FI862257A0 - Behandling av barrtraedsmassor med vaeteperoxid foer blekning av dem. - Google Patents

Behandling av barrtraedsmassor med vaeteperoxid foer blekning av dem.

Info

Publication number
FI862257A0
FI862257A0 FI862257A FI862257A FI862257A0 FI 862257 A0 FI862257 A0 FI 862257A0 FI 862257 A FI862257 A FI 862257A FI 862257 A FI862257 A FI 862257A FI 862257 A0 FI862257 A0 FI 862257A0
Authority
FI
Finland
Prior art keywords
hydrogen peroxide
pulp
stage
vaeteperoxid
barrtraedsmassor
Prior art date
Application number
FI862257A
Other languages
English (en)
Other versions
FI862257A (fi
FI83239C (fi
FI83239B (fi
Inventor
Bernard Dubreaux
Original Assignee
Atochem
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 Atochem filed Critical Atochem
Publication of FI862257A0 publication Critical patent/FI862257A0/fi
Publication of FI862257A publication Critical patent/FI862257A/fi
Application granted granted Critical
Publication of FI83239B publication Critical patent/FI83239B/fi
Publication of FI83239C publication Critical patent/FI83239C/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
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Measuring Leads Or Probes (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Stereophonic System (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Treatment Of Fiber Materials (AREA)
FI862257A 1985-05-29 1986-05-28 Behandling av kemiska barrtraedsmassor med vaeteperoxid foer blekning av dem. FI83239C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8508291A FR2582692B1 (fr) 1985-05-29 1985-05-29 Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
FR8508291 1985-05-29

Publications (4)

Publication Number Publication Date
FI862257A0 true FI862257A0 (fi) 1986-05-28
FI862257A FI862257A (fi) 1986-11-30
FI83239B FI83239B (fi) 1991-02-28
FI83239C FI83239C (fi) 1991-06-10

Family

ID=9319780

Family Applications (1)

Application Number Title Priority Date Filing Date
FI862257A FI83239C (fi) 1985-05-29 1986-05-28 Behandling av kemiska barrtraedsmassor med vaeteperoxid foer blekning av dem.

Country Status (10)

Country Link
US (1) US4734161A (fi)
EP (1) EP0208625B1 (fi)
JP (1) JPS61275491A (fi)
AT (1) ATE32534T1 (fi)
AU (1) AU5794486A (fi)
CA (1) CA1273756A (fi)
DE (1) DE3660024D1 (fi)
ES (1) ES8802336A1 (fi)
FI (1) FI83239C (fi)
FR (1) FR2582692B1 (fi)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0642046B2 (ja) * 1987-01-29 1994-06-01 新王子製紙株式会社 写真印画紙用支持体
FR2622221A1 (fr) * 1987-10-22 1989-04-28 Atochem Procede de blanchiment de pates
DE69004492T3 (de) * 1989-06-06 2001-11-15 Eka Nobel Ab Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
SE9001481L (sv) * 1990-04-23 1991-10-24 Eka Nobel Ab Reduktion av halogenorganiska foereningar i blekeriavlopp
FR2661431B1 (fr) * 1990-04-30 1992-07-17 Atochem Procede de blanchiment au peroxyde de l'hydrogene de pates a papier a haut rendement.
BE1007700A3 (fr) * 1993-11-04 1995-10-03 Solvay Interox Procede pour le blanchiment d'une pate a papier chimique.
ZA955190B (en) * 1994-07-11 1996-03-14 Ingersoll Rand Co Method for bleaching wood pulp using hydrogen peroxide
US5562740A (en) * 1995-06-15 1996-10-08 The Procter & Gamble Company Process for preparing reduced odor and improved brightness individualized, polycarboxylic acid crosslinked fibers
CA2373562A1 (en) * 2001-02-27 2002-08-27 Aileen Reyes Gibson Eop & ep process for bleaching of chemical pulp
US7297225B2 (en) * 2004-06-22 2007-11-20 Georgia-Pacific Consumer Products Lp Process for high temperature peroxide bleaching of pulp with cool discharge
FR3007044B1 (fr) * 2013-06-13 2016-01-15 Air Liquide Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2865701A (en) * 1953-12-07 1958-12-23 Nat Distillers Chem Corp Process of bleaching kraft pulp with alkaline hypochlorite bleach acidifying the pulp containing residual chlorine and then bleaching with alkaline peroxide
FR2038056A1 (en) * 1969-03-07 1971-01-08 Air Liquide Stable, clear bleaching bath for paper - pulp
US4187141A (en) * 1975-02-24 1980-02-05 Alf Societe Anonyme Method of producing bleached mechanical pulp
JPS583074B2 (ja) * 1975-11-17 1983-01-19 三菱瓦斯化学株式会社 パルプノ カサンカブツヒヨウハクホウ
JPS5545806A (en) * 1978-09-21 1980-03-31 Oji Paper Co Peroxide bleaching method of wood pulp
US4294575A (en) * 1979-01-02 1981-10-13 Monsanto Company Peroxide stabilization
JPS5891884A (ja) * 1981-11-27 1983-05-31 工業技術院長 高白色度未晒パルプの製造方法
SE451606B (sv) * 1982-09-14 1987-10-19 Sca Development Ab Sett vid blekning av hogutbytesmassor medelst peroxider

Also Published As

Publication number Publication date
JPH0156194B2 (fi) 1989-11-29
DE3660024D1 (en) 1988-03-24
FR2582692A1 (fr) 1986-12-05
FR2582692B1 (fr) 1987-12-11
FI862257A (fi) 1986-11-30
US4734161A (en) 1988-03-29
EP0208625A1 (fr) 1987-01-14
ES8802336A1 (es) 1987-05-01
ES555395A0 (es) 1987-05-01
FI83239C (fi) 1991-06-10
JPS61275491A (ja) 1986-12-05
FI83239B (fi) 1991-02-28
ATE32534T1 (de) 1988-03-15
EP0208625B1 (fr) 1988-02-17
AU5794486A (en) 1986-12-04
CA1273756A (fr) 1990-09-11

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Legal Events

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MM Patent lapsed
MM Patent lapsed

Owner name: ATOCHEM