ZA90404B - A method for the manufacture of cellulose pulp - Google Patents

A method for the manufacture of cellulose pulp

Info

Publication number
ZA90404B
ZA90404B ZA90404A ZA90404A ZA90404B ZA 90404 B ZA90404 B ZA 90404B ZA 90404 A ZA90404 A ZA 90404A ZA 90404 A ZA90404 A ZA 90404A ZA 90404 B ZA90404 B ZA 90404B
Authority
ZA
South Africa
Prior art keywords
liquid
acidity
lignocellulosic material
pulp
activation
Prior art date
Application number
ZA90404A
Other languages
English (en)
Inventor
Hans Olof Samuelson
Olof Samuelson Hans
Original Assignee
M Och Domsjoe Aktiebolag
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 M Och Domsjoe Aktiebolag filed Critical M Och Domsjoe Aktiebolag
Publication of ZA90404B publication Critical patent/ZA90404B/xx

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)
ZA90404A 1989-01-19 1990-01-19 A method for the manufacture of cellulose pulp ZA90404B (en)

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
ZA90404B true ZA90404B (en) 1990-10-31

Family

ID=20374787

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA90404A ZA90404B (en) 1989-01-19 1990-01-19 A method for the manufacture of cellulose pulp

Country Status (13)

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

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
FI913448A0 (fi) 1991-07-17
PT92896A (pt) 1990-07-31
NZ232124A (en) 1991-03-26
EP0454757A1 (en) 1991-11-06
PT92896B (pt) 1995-12-29
DE69011669T2 (de) 1994-12-08
ES2057534T3 (es) 1994-10-16
FI913448A7 (fi) 1991-07-17
EP0454757B1 (en) 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
SE462920B (sv) 1990-09-17

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