SE462920B - Foerfarande foer aktivering av cellulosamassa med kvaevedioxid innehaallande gas - Google Patents

Foerfarande foer aktivering av cellulosamassa med kvaevedioxid innehaallande gas

Info

Publication number
SE462920B
SE462920B SE8900177A SE8900177A SE462920B SE 462920 B SE462920 B SE 462920B SE 8900177 A SE8900177 A SE 8900177A SE 8900177 A SE8900177 A SE 8900177A SE 462920 B SE462920 B SE 462920B
Authority
SE
Sweden
Prior art keywords
activation
liquid
lignocellulosic material
acidity
pulp
Prior art date
Application number
SE8900177A
Other languages
English (en)
Swedish (sv)
Other versions
SE8900177D0 (sv
SE8900177L (sv
Inventor
H O Samuelson
Original Assignee
Mo Och Domsjoe Ab
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 Mo Och Domsjoe Ab filed Critical Mo Och Domsjoe Ab
Priority to SE8900177A priority Critical patent/SE462920B/sv
Publication of SE8900177D0 publication Critical patent/SE8900177D0/xx
Priority to PCT/SE1990/000036 priority patent/WO1990008221A1/en
Priority to FI913448A priority patent/FI913448A7/fi
Priority to AU49522/90A priority patent/AU620210B2/en
Priority to NZ232124A priority patent/NZ232124A/en
Priority to EP90902410A priority patent/EP0454757B1/de
Priority to AT90902410T priority patent/ATE110130T1/de
Priority to ES90902410T priority patent/ES2057534T3/es
Priority to DE69011669T priority patent/DE69011669T2/de
Priority to JP2502405A priority patent/JPH04502790A/ja
Priority to CA002045497A priority patent/CA2045497A1/en
Priority to PT92896A priority patent/PT92896B/pt
Priority to ZA90404A priority patent/ZA90404B/xx
Publication of SE8900177L publication Critical patent/SE8900177L/
Publication of SE462920B publication Critical patent/SE462920B/sv
Priority to NO912828A priority patent/NO172297C/no
Priority to US08/229,116 priority patent/US5456799A/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
    • C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
    • 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
SE8900177A 1989-01-19 1989-01-19 Foerfarande foer aktivering av cellulosamassa med kvaevedioxid innehaallande gas SE462920B (sv)

Priority Applications (15)

Application Number Priority Date Filing Date Title
SE8900177A SE462920B (sv) 1989-01-19 1989-01-19 Foerfarande foer aktivering av cellulosamassa med kvaevedioxid innehaallande gas
CA002045497A CA2045497A1 (en) 1989-01-19 1990-01-16 Method in the manufacture of cellulose pulp
AT90902410T ATE110130T1 (de) 1989-01-19 1990-01-16 Verfahren zur herstellung von zellulosepulpe.
DE69011669T DE69011669T2 (de) 1989-01-19 1990-01-16 Verfahren zur herstellung von zellulosepulpe.
AU49522/90A AU620210B2 (en) 1989-01-19 1990-01-16 Cellulose pulp
NZ232124A NZ232124A (en) 1989-01-19 1990-01-16 Treatment of lignocellulosic material by activation with a gas containing nitrogen dioxide in the presence of nitrate; measuring acidity to control activation
EP90902410A EP0454757B1 (de) 1989-01-19 1990-01-16 Verfahren zur herstellung von zellulosepulpe
PCT/SE1990/000036 WO1990008221A1 (en) 1989-01-19 1990-01-16 A method in the manufacture of cellulose pulp
ES90902410T ES2057534T3 (es) 1989-01-19 1990-01-16 Un metodo para la fabricacion de pasta de celulosa.
FI913448A FI913448A7 (fi) 1989-01-19 1990-01-16 Menetelmä selluloosamassan tuottamiseksi
JP2502405A JPH04502790A (ja) 1989-01-19 1990-01-16 セルロースパルプの製造方法
PT92896A PT92896B (pt) 1989-01-19 1990-01-18 Processo para a fabricacao de polpa de celulose
ZA90404A ZA90404B (en) 1989-01-19 1990-01-19 A method for the manufacture of cellulose pulp
NO912828A NO172297C (no) 1989-01-19 1991-07-18 Fremgangsmaate ved fremstilling av cellulosemasse
US08/229,116 US5456799A (en) 1989-01-19 1994-04-12 Method for controlling activation of lignocellulosic material in the presence of a nitrate containing liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8900177A SE462920B (sv) 1989-01-19 1989-01-19 Foerfarande foer aktivering av cellulosamassa med kvaevedioxid innehaallande gas

Publications (3)

Publication Number Publication Date
SE8900177D0 SE8900177D0 (sv) 1989-01-19
SE8900177L SE8900177L (sv) 1990-07-20
SE462920B true SE462920B (sv) 1990-09-17

Family

ID=20374787

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8900177A SE462920B (sv) 1989-01-19 1989-01-19 Foerfarande foer aktivering av cellulosamassa med kvaevedioxid innehaallande gas

Country Status (13)

Country Link
EP (1) EP0454757B1 (de)
JP (1) JPH04502790A (de)
AT (1) ATE110130T1 (de)
AU (1) AU620210B2 (de)
CA (1) CA2045497A1 (de)
DE (1) DE69011669T2 (de)
ES (1) ES2057534T3 (de)
FI (1) FI913448A7 (de)
NZ (1) NZ232124A (de)
PT (1) PT92896B (de)
SE (1) SE462920B (de)
WO (1) WO1990008221A1 (de)
ZA (1) ZA90404B (de)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE448006B (sv) * 1981-09-21 1987-01-12 Mo Och Domsjoe Ab Forfarande for blekning av cellulosamassa innefattande ett aktiveringssteg med kveveoxider

Also Published As

Publication number Publication date
ZA90404B (en) 1990-10-31
FI913448A0 (fi) 1991-07-17
PT92896A (pt) 1990-07-31
NZ232124A (en) 1991-03-26
EP0454757A1 (de) 1991-11-06
PT92896B (pt) 1995-12-29
DE69011669T2 (de) 1994-12-08
ES2057534T3 (es) 1994-10-16
FI913448A7 (fi) 1991-07-17
EP0454757B1 (de) 1994-08-17
DE69011669D1 (de) 1994-09-22
ATE110130T1 (de) 1994-09-15
AU4952290A (en) 1990-08-13
SE8900177D0 (sv) 1989-01-19
WO1990008221A1 (en) 1990-07-26
CA2045497A1 (en) 1990-07-20
AU620210B2 (en) 1992-02-13
SE8900177L (sv) 1990-07-20
JPH04502790A (ja) 1992-05-21

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