FI944144A0 - Menetelmä paperimassan valkaisemiseksi - Google Patents

Menetelmä paperimassan valkaisemiseksi

Info

Publication number: FI944144A0
Authority: FI; Finland
Prior art keywords: procedure; bleaching pulp; bleaching; pulp
Prior art date: 1993-09-15

Application number

FI944144A

Other languages

English (en)

Swedish (sv)

Other versions

FI944144A (fi

Inventor

Brian Greenwood

Kaj Henricson

Bjoern Svedin

Original Assignee

Ahlstroem Oy

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.)

1993-09-15

Filing date

1994-09-09

Publication date

1994-09-09

1994-09-09 Application filed by Ahlstroem Oy filed Critical Ahlstroem Oy

1994-09-09 Publication of FI944144A0 publication Critical patent/FI944144A0/fi

1995-03-16 Publication of FI944144A publication Critical patent/FI944144A/fi

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)

FI944144A 1993-09-15 1994-09-09 Menetelmä paperimassan valkaisemiseksi FI944144A (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US12083893A	1993-09-15	1993-09-15

Publications (2)

Publication Number	Publication Date
FI944144A0 true FI944144A0 (fi)	1994-09-09
FI944144A FI944144A (fi)	1995-03-16

Family

ID=22392837

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI944144A FI944144A (fi)	1993-09-15	1994-09-09	Menetelmä paperimassan valkaisemiseksi

Country Status (3)

Country	Link
CA (1)	CA2132057A1 (fi)
FI (1)	FI944144A (fi)
SE (2)	SE9403073L (fi)

1994
- 1994-09-09 FI FI944144A patent/FI944144A/fi unknown
- 1994-09-14 CA CA002132057A patent/CA2132057A1/en not_active Abandoned
- 1994-09-14 SE SE9403073A patent/SE9403073L/xx not_active Application Discontinuation
1996
- 1996-12-30 SE SE9604831A patent/SE9604831L/xx not_active Application Discontinuation

Also Published As

Publication number	Publication date
SE9604831D0 (sv)	1996-12-30
SE9403073L (sv)	1995-03-16
FI944144A (fi)	1995-03-16
SE9604831L (sv)	1998-07-01
CA2132057A1 (en)	1995-03-16
SE9403073D0 (sv)	1994-09-14

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Legal Events

Date	Code	Title	Description
1997-01-14	GB	Transfer or assigment of application	Owner name: AHLSTROM MACHINERY OY