FI882448A - Förfarande för framställning av blekt kemitermomekanisk massa - Google Patents

Förfarande för framställning av blekt kemitermomekanisk massa Download PDF

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Publication number
FI882448A
FI882448A FI882448A FI882448A FI882448A FI 882448 A FI882448 A FI 882448A FI 882448 A FI882448 A FI 882448A FI 882448 A FI882448 A FI 882448A FI 882448 A FI882448 A FI 882448A
Authority
FI
Finland
Prior art keywords
preparation
thermomechanical pulp
bleached chemical
chemical thermomechanical
aid
Prior art date
Application number
FI882448A
Other languages
English (en)
Finnish (fi)
Other versions
FI93746C (sv
FI882448A0 (sv
FI93746B (sv
Inventor
Michel Devic
Robert Angelier
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 FI882448A0 publication Critical patent/FI882448A0/sv
Publication of FI882448A publication Critical patent/FI882448A/sv
Application granted granted Critical
Publication of FI93746B publication Critical patent/FI93746B/sv
Publication of FI93746C publication Critical patent/FI93746C/sv

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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Landscapes

  • Paper (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Catalysts (AREA)
  • Steroid Compounds (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
FI882448A 1987-05-25 1988-05-24 Förfarande för framställning av blekt kemitermomekanisk massa FI93746C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8707552 1987-05-25
FR8707552A FR2615874B1 (fr) 1987-05-25 1987-05-25 Procede de preparation de pates chimicothermomecaniques

Publications (4)

Publication Number Publication Date
FI882448A0 FI882448A0 (sv) 1988-05-24
FI882448A true FI882448A (sv) 1988-11-26
FI93746B FI93746B (sv) 1995-02-15
FI93746C FI93746C (sv) 1995-05-26

Family

ID=9351559

Family Applications (1)

Application Number Title Priority Date Filing Date
FI882448A FI93746C (sv) 1987-05-25 1988-05-24 Förfarande för framställning av blekt kemitermomekanisk massa

Country Status (12)

Country Link
EP (1) EP0293309B1 (sv)
JP (1) JPS63303189A (sv)
AT (1) ATE61639T1 (sv)
AU (1) AU609481B2 (sv)
CA (1) CA1310452C (sv)
DE (2) DE3861982D1 (sv)
ES (1) ES2004855B3 (sv)
FI (1) FI93746C (sv)
FR (1) FR2615874B1 (sv)
NO (1) NO171801C (sv)
NZ (1) NZ224749A (sv)
PT (1) PT87569B (sv)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2634233B1 (fr) * 1988-07-12 1995-04-14 Atochem Procede de fabrication de pates chimicothermomecaniques blanchies
FR2659363B1 (fr) * 1990-03-07 1996-04-19 Atochem Procede de preparation de pates a haut rendement blanchies.
SE468644B (sv) * 1991-05-24 1993-02-22 Sunds Defibrator Ind Ab Framstaellning av kemitermomekanisk massa samt impregneringsloesning innehaallande borhydrid och sulfit
DE10109502A1 (de) * 2001-02-28 2002-09-12 Rhodia Acetow Gmbh Verfahren zum Abtrennen von Hemicellulosen aus hemicellulosehaltiger Biomasse sowie die mit dem Verfahren erhältliche Biomasse und Hemicellulose
AU2013357649B2 (en) * 2012-12-12 2017-06-08 Basf Se Use of sodium dithionite in a cellulose pulping process
EP2924166A1 (de) * 2014-03-25 2015-09-30 Basf Se Verfahren zur Herstellung von gebleichtem Holzfaserstoff
CN111549552B (zh) * 2020-05-25 2022-06-14 广西大学 一种废水碱回收循环利用的高得率化学机械浆制浆方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1150451A (fr) * 1956-05-04 1958-01-14 Saint Gobain Perfectionnement aux procédés de fabrication des pâtes cellulosiques mi-chimiques
US3284283A (en) * 1964-02-17 1966-11-08 Fmc Corp Production of wood pulps including treatment of cellulosic fibers with bisulfite ion followed by alkali metal borohydride
CH510168A (it) * 1969-07-30 1971-07-15 Vita Mayer & C Gia Processo per la produzione di paste ad alta resa ed alto grado di bianco per uso cartario
JPS5210300B2 (sv) * 1973-06-19 1977-03-23
SE416481B (sv) * 1977-05-02 1981-01-05 Mo Och Domsjoe Ab Fofarande och anordning for behandling av vedflis for avlegsnande av tungmetaller och harts
CA1212505A (en) * 1984-07-17 1986-10-14 Rudy Vit Method, process and apparatus for converting wood, wood residue and or biomass into pulp
FR2634233B1 (fr) * 1988-07-12 1995-04-14 Atochem Procede de fabrication de pates chimicothermomecaniques blanchies

Also Published As

Publication number Publication date
NO882263D0 (no) 1988-05-24
ATE61639T1 (de) 1991-03-15
CA1310452C (fr) 1992-11-24
PT87569B (pt) 1992-09-30
JPS63303189A (ja) 1988-12-09
EP0293309A1 (fr) 1988-11-30
FI93746C (sv) 1995-05-26
FR2615874B1 (fr) 1992-02-21
NO171801B (no) 1993-01-25
JPH0217675B2 (sv) 1990-04-23
FI882448A0 (sv) 1988-05-24
EP0293309B1 (fr) 1991-03-13
ES2004855A4 (es) 1989-02-16
DE293309T1 (de) 1989-05-11
FI93746B (sv) 1995-02-15
NO882263L (no) 1988-11-28
NO171801C (no) 1993-05-05
DE3861982D1 (de) 1991-04-18
AU609481B2 (en) 1991-05-02
ES2004855B3 (es) 1991-08-16
FR2615874A1 (fr) 1988-12-02
PT87569A (pt) 1989-05-31
AU1661488A (en) 1988-12-01
NZ224749A (en) 1989-08-29

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Legal Events

Date Code Title Description
HC Name/ company changed in application

Owner name: ELF ATOCHEM S.A.

BB Publication of examined application
MM Patent lapsed

Owner name: ELF ATOCHEM S.A.