FI890100A - Foerfarande foer framstaellning av halvblekt kraftmassa. - Google Patents

Foerfarande foer framstaellning av halvblekt kraftmassa. Download PDF

Info

Publication number
FI890100A
FI890100A FI890100A FI890100A FI890100A FI 890100 A FI890100 A FI 890100A FI 890100 A FI890100 A FI 890100A FI 890100 A FI890100 A FI 890100A FI 890100 A FI890100 A FI 890100A
Authority
FI
Finland
Prior art keywords
kraftmassa
halvblekt
foerfarande foer
foer framstaellning
framstaellning
Prior art date
Application number
FI890100A
Other languages
English (en)
Finnish (fi)
Other versions
FI890100A0 (fi
Inventor
Hans Ulrich Suess
Juergen Meier
Oswald Helmling
Original Assignee
Degussa
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 Degussa filed Critical Degussa
Publication of FI890100A0 publication Critical patent/FI890100A0/fi
Publication of FI890100A publication Critical patent/FI890100A/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
    • D21C9/1057—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)
FI890100A 1988-01-28 1989-01-09 Foerfarande foer framstaellning av halvblekt kraftmassa. FI890100A (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3802401A DE3802401A1 (de) 1988-01-28 1988-01-28 Verfahren zur herstellung von halbgebleichtem kraftzellstoff

Publications (2)

Publication Number Publication Date
FI890100A0 FI890100A0 (fi) 1989-01-09
FI890100A true FI890100A (fi) 1989-07-29

Family

ID=6346109

Family Applications (1)

Application Number Title Priority Date Filing Date
FI890100A FI890100A (fi) 1988-01-28 1989-01-09 Foerfarande foer framstaellning av halvblekt kraftmassa.

Country Status (9)

Country Link
EP (1) EP0325731A1 (xx)
AU (1) AU607026B2 (xx)
BR (1) BR8900259A (xx)
DE (1) DE3802401A1 (xx)
FI (1) FI890100A (xx)
NO (1) NO885525L (xx)
NZ (1) NZ227748A (xx)
PT (1) PT89533A (xx)
ZA (1) ZA889289B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE460124B (sv) * 1988-09-14 1989-09-11 Sunds Defibrator Saett foer framstaellning av kemimekanisk massa av loevved
DE4004364A1 (de) * 1990-02-13 1991-08-14 Sueddeutsche Kalkstickstoff Verfahren zur chlorfreien bleiche und delignifizierung von zellstoff
SE466060C (sv) 1990-02-13 1995-09-11 Moelnlycke Ab Absorberande kemitermomekanisk massa och framställning därav
US5607546A (en) * 1990-02-13 1997-03-04 Molnlycke Ab CTMP-process
NZ237019A (en) * 1990-02-19 1992-11-25 Amcor Ltd Bleaching paper pulp by initially treating with oxygen and/or hydrogen peroxide and subsequently treating with a bleaching agent without intervening washing steps
US6398908B1 (en) 1991-04-30 2002-06-04 Eka Nobel Ab Process for acid bleaching of lignocellulose-containing pulp with a magnesium compound
BE1005800A3 (fr) * 1992-05-22 1994-02-01 Solvay Interox Procede pour la delignification et le blanchiment d'une pate a papier chimique.
AU7243594A (en) * 1993-09-15 1995-04-03 Kamyr Inc. Eop stage for chlorine free bleaching
DE29911772U1 (de) 1999-07-06 1999-09-02 Tien, Dieter, 48527 Nordhorn Reinigungsgerät für glatte Flächen, insbesondere zum Putzen von Fenstern

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1601408A (xx) * 1967-06-20 1970-08-24
FI45574C (fi) * 1970-05-11 1972-07-10 Kymin Oy Kymmene Ab Menetelmä selluloosapitoisten aineiden valkaisemiseksi.
FR2457339A1 (fr) * 1979-05-25 1980-12-19 Interox Procede pour la delignification et le blanchiment de pates cellulosiques chimiques et semi-chimiques

Also Published As

Publication number Publication date
AU607026B2 (en) 1991-02-21
ZA889289B (en) 1989-09-27
PT89533A (pt) 1989-10-04
DE3802401A1 (de) 1989-08-03
AU2679888A (en) 1989-08-03
NO885525L (no) 1989-07-31
NZ227748A (en) 1990-04-26
NO885525D0 (no) 1988-12-13
BR8900259A (pt) 1989-09-19
EP0325731A1 (de) 1989-08-02
FI890100A0 (fi) 1989-01-09

Similar Documents

Publication Publication Date Title
FI880420A0 (fi) Anordning foer bestrykning av materialbana.
FI880557A0 (fi) Foerfarande foer momentkontroll av en vaexelstroemsmaskin.
FI890100A (fi) Foerfarande foer framstaellning av halvblekt kraftmassa.
FI880233A0 (fi) Anordning foer skaerpning av knivar.
FI881079A (fi) Anlaeggning foer boejning av glasskivor.
FI881437A0 (fi) Anordning foer manoevrering av tvao kopplingsanordningar.
FI880667A0 (fi) Anordning foer haerdning av isoleringsroer.
FI881206A (fi) Isolerande grundform av staolarmerad betong.
FI881488A0 (fi) Verktyg foer bockning av kopparroer.
FI880141A (fi) Avsoekande elektronmikroskop foer visualisering av loesningsprov.
FI880971A0 (fi) Foerfarande foer framstaellning av en valsbelaeggning.
FI880191A0 (fi) Foerfarande foer oekning av friktion.
FI881012A0 (fi) Foerfarande foer framstaellning av en bergsko foer betongpaolar.
FI880092A (fi) Fogningskonstruktion av eldstadsdelar.
FI880070A0 (fi) Skydd foer foerhindrande av igenfrysning av dagvatten- och avfallsvattenbrunnar.
FI881128A (fi) Foerfarande foer framstaellning av terapeutiskt anvaendbart nikotinsyra-litiumsaltsemihydrat.
FI881661A0 (fi) Foerfarande foer automatisk under- vattensvetsning av roerfoerband.
FI880211A0 (fi) Anordning foer medlaeggning av draeneringsroer.
FI880448A0 (fi) Foerfarande foer laeggning av kylroer.
FI880940A0 (fi) Foerfarande foer framstaellning av disackaridderivat.
FI881605A0 (fi) Arbetsfoerfarande foer avlagning av sprucken vaegbelaeggning.
FI880829A0 (fi) Lockmembrankonstruktion av en foerpackning.
FI880773A0 (fi) Foerfarande foer framstaellning av gummistoevel.
FI880327A0 (fi) Sanitetsarmatur foer aostadkommande av dubbeldusch.
FI881463A0 (fi) Anordning foer hoejning av tryck.

Legal Events

Date Code Title Description
FD Application lapsed
MM Patent lapsed

Owner name: DEGUSSA AKTIENGESELLSCHAFT