FI870391A0 - FOERFARANDE FOER BLEKNING AV MEKANISKA MASSOR. - Google Patents

FOERFARANDE FOER BLEKNING AV MEKANISKA MASSOR.

Info

Publication number
FI870391A0
FI870391A0 FI870391A FI870391A FI870391A0 FI 870391 A0 FI870391 A0 FI 870391A0 FI 870391 A FI870391 A FI 870391A FI 870391 A FI870391 A FI 870391A FI 870391 A0 FI870391 A0 FI 870391A0
Authority
FI
Finland
Prior art keywords
mekaniska
massor
foerfarande foer
blekning
foer blekning
Prior art date
Application number
FI870391A
Other languages
Finnish (fi)
Other versions
FI87244C (en
FI87244B (en
FI870391A (en
Inventor
Dominique Lachenal
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 FI870391A0 publication Critical patent/FI870391A0/en
Publication of FI870391A publication Critical patent/FI870391A/en
Application granted granted Critical
Publication of FI87244B publication Critical patent/FI87244B/en
Publication of FI87244C publication Critical patent/FI87244C/en

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
FI870391A 1986-01-30 1987-01-29 Procedure for bleaching mechanical pulp FI87244C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8601465 1986-01-30
FR8601465A FR2593527B1 (en) 1986-01-30 1986-01-30 PROCESS FOR BLEACHING MECHANICAL PASTA.

Publications (4)

Publication Number Publication Date
FI870391A0 true FI870391A0 (en) 1987-01-29
FI870391A FI870391A (en) 1987-07-31
FI87244B FI87244B (en) 1992-08-31
FI87244C FI87244C (en) 1992-12-10

Family

ID=9331755

Family Applications (1)

Application Number Title Priority Date Filing Date
FI870391A FI87244C (en) 1986-01-30 1987-01-29 Procedure for bleaching mechanical pulp

Country Status (4)

Country Link
JP (1) JPS62191589A (en)
FI (1) FI87244C (en)
FR (1) FR2593527B1 (en)
SE (1) SE467666B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2622221A1 (en) * 1987-10-22 1989-04-28 Atochem PROCESS FOR BLEACHING PASTA
US6605181B1 (en) * 1993-10-01 2003-08-12 Kvaerner Pulping Aktiebolag Peroxide bleach sequence including an acidic bleach stage and including a wash stage
DE19516151A1 (en) 1995-05-03 1996-11-07 Sven Siegle Process for the production of a pulp from cellulosic material, the pulp itself and its use

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE420430B (en) * 1978-02-17 1981-10-05 Mo Och Domsjoe Ab PROCEDURE FOR WHEATING AND EXTRACTION OF LIGNOCELLULOSALLY MATERIALS WITH PEROXID CONTAINING BLACKS
US4410397A (en) * 1978-04-07 1983-10-18 International Paper Company Delignification and bleaching process and solution for lignocellulosic pulp with peroxide in the presence of metal additives
FR2520397A1 (en) * 1982-01-28 1983-07-29 Centre Tech Ind Papier PROCESS FOR TREATING CHEMICAL PAPER PASTES
SE451606B (en) * 1982-09-14 1987-10-19 Sca Development Ab VIEW WHITENING OF HOG REPLACEMENT MASSES AVERAGE PEROXIDES

Also Published As

Publication number Publication date
FI87244C (en) 1992-12-10
FR2593527A1 (en) 1987-07-31
FI87244B (en) 1992-08-31
JPS62191589A (en) 1987-08-21
FI870391A (en) 1987-07-31
SE8700313L (en) 1987-07-31
SE467666B (en) 1992-08-24
SE8700313D0 (en) 1987-01-27
FR2593527B1 (en) 1988-03-25
JPH0156195B2 (en) 1989-11-29

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Legal Events

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MM Patent lapsed

Owner name: ATOCHEM