ATE110130T1 - Verfahren zur herstellung von zellulosepulpe. - Google Patents

Verfahren zur herstellung von zellulosepulpe.

Info

Publication number
ATE110130T1
ATE110130T1 AT90902410T AT90902410T ATE110130T1 AT E110130 T1 ATE110130 T1 AT E110130T1 AT 90902410 T AT90902410 T AT 90902410T AT 90902410 T AT90902410 T AT 90902410T AT E110130 T1 ATE110130 T1 AT E110130T1
Authority
AT
Austria
Prior art keywords
liquid
acidity
lignocellulosic material
pulp
activation
Prior art date
Application number
AT90902410T
Other languages
English (en)
Inventor
Hans Olof 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
Application granted granted Critical
Publication of ATE110130T1 publication Critical patent/ATE110130T1/de

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)
AT90902410T 1989-01-19 1990-01-16 Verfahren zur herstellung von zellulosepulpe. ATE110130T1 (de)

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 (1)

Publication Number Publication Date
ATE110130T1 true ATE110130T1 (de) 1994-09-15

Family

ID=20374787

Family Applications (1)

Application Number Title Priority Date Filing Date
AT90902410T ATE110130T1 (de) 1989-01-19 1990-01-16 Verfahren zur herstellung von zellulosepulpe.

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) FI913448A0 (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
EP0454757A1 (de) 1991-11-06
CA2045497A1 (en) 1990-07-20
ES2057534T3 (es) 1994-10-16
SE8900177D0 (sv) 1989-01-19
AU620210B2 (en) 1992-02-13
FI913448A0 (fi) 1991-07-17
DE69011669T2 (de) 1994-12-08
NZ232124A (en) 1991-03-26
WO1990008221A1 (en) 1990-07-26
PT92896B (pt) 1995-12-29
SE8900177L (sv) 1990-07-20
DE69011669D1 (de) 1994-09-22
ZA90404B (en) 1990-10-31
JPH04502790A (ja) 1992-05-21
SE462920B (sv) 1990-09-17
AU4952290A (en) 1990-08-13
PT92896A (pt) 1990-07-31
EP0454757B1 (de) 1994-08-17

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee