CA2157886A1 - Process for producing chemomechanical and/or chemothermomechanical wood products - Google Patents

Process for producing chemomechanical and/or chemothermomechanical wood products

Info

Publication number
CA2157886A1
CA2157886A1 CA002157886A CA2157886A CA2157886A1 CA 2157886 A1 CA2157886 A1 CA 2157886A1 CA 002157886 A CA002157886 A CA 002157886A CA 2157886 A CA2157886 A CA 2157886A CA 2157886 A1 CA2157886 A1 CA 2157886A1
Authority
CA
Canada
Prior art keywords
raw materials
reaction
wood
solution
process according
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
CA002157886A
Other languages
English (en)
French (fr)
Inventor
Rudolf Patt
Jens Neumann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stora Feldmuehle AG
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2157886A1 publication Critical patent/CA2157886A1/en
Abandoned legal-status Critical Current

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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • D21C1/04—Pretreatment of the finely-divided materials before digesting with acid reacting compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/14—Disintegrating in mills
    • D21B1/16—Disintegrating in mills in the presence of chemical agents
    • 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
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Paper (AREA)
  • Processing Of Solid Wastes (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
CA002157886A 1993-03-11 1994-03-03 Process for producing chemomechanical and/or chemothermomechanical wood products Abandoned CA2157886A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4307660A DE4307660C1 (de) 1993-03-11 1993-03-11 Herstellung chemo-mechanischer und/oder chemo-thermo-mechanischer Holzstoffe
DEP4307660.2 1993-03-11

Publications (1)

Publication Number Publication Date
CA2157886A1 true CA2157886A1 (en) 1994-09-15

Family

ID=6482482

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002157886A Abandoned CA2157886A1 (en) 1993-03-11 1994-03-03 Process for producing chemomechanical and/or chemothermomechanical wood products

Country Status (10)

Country Link
EP (1) EP0688373B1 (es)
JP (1) JPH08507333A (es)
AT (1) ATE144011T1 (es)
CA (1) CA2157886A1 (es)
DE (2) DE4307660C1 (es)
DK (1) DK0688373T3 (es)
ES (1) ES2095755T3 (es)
FI (1) FI954231A0 (es)
NO (1) NO953389L (es)
WO (1) WO1994020670A1 (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009057208A1 (de) * 2009-11-27 2011-06-01 Technische Universität Dresden Verfahren zur Herstellung von lignozellulosen Papierfaserstoffen sowie daraus gewonnene Papiere, Kartone und Pappen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI43032C (fi) * 1963-05-21 1973-01-26 Defibrator Ab Tapa valmistaa kemimekaanisia massoja kuumentamalla ja jauhamalla sulfiittiliuoksilla kyllästettyjä puuhakkeita höyryilmakehässä ja korotetussa lämpötilassa
DE2445523A1 (de) * 1974-09-24 1976-04-01 Waldhof Aschaffenburg Papier Verfahren zur herstellung von zellstoff
SE404044B (sv) * 1975-11-13 1978-09-18 Mo Och Domsjoe Ab Ljusabsorberande lignirik hogutbytescellulosamassa samt forfarande for framstellning av denna
US4211605A (en) * 1978-08-03 1980-07-08 Canadian International Paper Company High yield chemimechanical pulping processes
US4634499A (en) * 1983-05-02 1987-01-06 The Procter & Gamble Company Sulfite process for making pulp having a tactile softness from hardwood chips
DE3932347A1 (de) * 1989-09-28 1991-04-11 Feldmuehle Ag Herstellung chemo-mechanischer und/oder chemo-thermo-mechanischer holzstoffe
SE9002039D0 (sv) * 1990-06-07 1990-06-07 Svenska Traeforskningsinst Saett att framstaella massa

Also Published As

Publication number Publication date
FI954231A (fi) 1995-09-08
DE59400830D1 (de) 1996-11-14
JPH08507333A (ja) 1996-08-06
EP0688373B1 (de) 1996-10-09
FI954231A0 (fi) 1995-09-08
DK0688373T3 (da) 1997-03-24
DE4307660C1 (de) 1994-08-04
NO953389D0 (no) 1995-08-29
ES2095755T3 (es) 1997-02-16
EP0688373A1 (de) 1995-12-27
WO1994020670A1 (de) 1994-09-15
ATE144011T1 (de) 1996-10-15
NO953389L (no) 1995-08-29

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Legal Events

Date Code Title Description
FZDE Discontinued