NO953389D0 - Preparation of chemical and chemical mechanical masses - Google Patents

Preparation of chemical and chemical mechanical masses

Info

Publication number
NO953389D0
NO953389D0 NO953389A NO953389A NO953389D0 NO 953389 D0 NO953389 D0 NO 953389D0 NO 953389 A NO953389 A NO 953389A NO 953389 A NO953389 A NO 953389A NO 953389 D0 NO953389 D0 NO 953389D0
Authority
NO
Norway
Prior art keywords
chemical
raw materials
wood
preparation
sulfonating reaction
Prior art date
Application number
NO953389A
Other languages
Norwegian (no)
Other versions
NO953389L (en
Inventor
Rudolf Patt
Jens Neumann
Original Assignee
Feldmuehle Ag Stora
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 Feldmuehle Ag Stora filed Critical Feldmuehle Ag Stora
Publication of NO953389L publication Critical patent/NO953389L/en
Publication of NO953389D0 publication Critical patent/NO953389D0/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
    • 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)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Processing Of Solid Wastes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

A process is disclosed for producing chemomechanical and/or chemothermomechanical wood products from lignocellulosic raw materials, such as wood chips. The raw materials are impregnated with a SO2-containing solution and then subjected to a sulfonating reaction in a gaseous or vapour phase at a pH value equal to 2 or less. When the sulfonating reaction is finished, the raw materials or wood chips are defibrated in a defibrating unit known per se and are crushed down to a preselected fineness degree. The wood product thus obtained is characterized by remarkable solidity and by requiring a reduced specific crushing energy.
NO953389A 1993-03-11 1995-08-29 Preparation of chemical and chemical mechanical masses NO953389D0 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4307660A DE4307660C1 (en) 1993-03-11 1993-03-11 Manufacture of chemo-mechanical and / or chemo-thermo-mechanical wood materials
PCT/EP1994/000627 WO1994020670A1 (en) 1993-03-11 1994-03-03 Process for producing chemomechanical and/or chemothermomechanical wood products

Publications (2)

Publication Number Publication Date
NO953389L NO953389L (en) 1995-08-29
NO953389D0 true NO953389D0 (en) 1995-08-29

Family

ID=6482482

Family Applications (1)

Application Number Title Priority Date Filing Date
NO953389A NO953389D0 (en) 1993-03-11 1995-08-29 Preparation of chemical and chemical mechanical masses

Country Status (10)

Country Link
EP (1) EP0688373B1 (en)
JP (1) JPH08507333A (en)
AT (1) ATE144011T1 (en)
CA (1) CA2157886A1 (en)
DE (2) DE4307660C1 (en)
DK (1) DK0688373T3 (en)
ES (1) ES2095755T3 (en)
FI (1) FI954231A (en)
NO (1) NO953389D0 (en)
WO (1) WO1994020670A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009057208A1 (en) * 2009-11-27 2011-06-01 Technische Universität Dresden Process for the production of lignocellulosic paper pulps and papers, cartons and boards derived therefrom

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI43032C (en) * 1963-05-21 1973-01-26 Defibrator Ab A method of making chemimechanical pulps by heating and grinding wood chips impregnated with sulphite solutions in a steam atmosphere and at an elevated temperature
DE2445523A1 (en) * 1974-09-24 1976-04-01 Waldhof Aschaffenburg Papier METHOD FOR MANUFACTURING PULP
SE404044B (en) * 1975-11-13 1978-09-18 Mo Och Domsjoe Ab LIGHT ABSORBING LIGNIRIK HOGUTYTESCELLULOSAMASSA AND PROCEDURES FOR THE PREPARATION OF THIS
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 (en) * 1989-09-28 1991-04-11 Feldmuehle Ag PRODUCTION OF CHEMO-MECHANICAL AND / OR CHEMO-THERMO-MECHANICAL WOODEN MATERIALS
SE9002039D0 (en) * 1990-06-07 1990-06-07 Svenska Traeforskningsinst SAVE TO PREPARE

Also Published As

Publication number Publication date
FI954231A0 (en) 1995-09-08
NO953389L (en) 1995-08-29
DE4307660C1 (en) 1994-08-04
WO1994020670A1 (en) 1994-09-15
ATE144011T1 (en) 1996-10-15
CA2157886A1 (en) 1994-09-15
EP0688373B1 (en) 1996-10-09
JPH08507333A (en) 1996-08-06
FI954231A (en) 1995-09-08
DE59400830D1 (en) 1996-11-14
EP0688373A1 (en) 1995-12-27
DK0688373T3 (en) 1997-03-24
ES2095755T3 (en) 1997-02-16

Similar Documents

Publication Publication Date Title
CA2252042A1 (en) Method for production of lignocellulosic composite materials
ATE122420T1 (en) PRODUCTION PROCESS FOR CHEMICAL-MECHANICAL PULP.
NO178467C (en) Process for the preparation of chemo-mechanical and / or chemo-thermomechanical pulp of wood
ES552920A0 (en) A METHOD FOR MANUFACTURING CHEMICAL-MECHANICAL PAPER BAG FROM LIGNOCELLULOSIC MATERIAL, FOR EXAMPLE CHIPS
FI891559A (en) FOERFARANDE FOER FRAMSTAELLNING AV LIGNOCELLULOSAMATERIALFIBRER INNEHAOLLANDE PRODUKTER.
NO953389L (en) Preparation of chemical and chemical mechanical masses
NO952613L (en) Process for the preparation of mechanical and chemical mechanical pulp
CA2193448A1 (en) Process for the production of cellulose
SU1433400A3 (en) Method of industrial production of stabilized elementary particles from lignocellulose waste
KR970006451B1 (en) Manufacturing method for wood particle board
SE7905990L (en) PROCEDURES FOR PREPARING PAPER Pulp
SE8002027L (en) IN CONNECTION WITH THE MANUFACTURE OF THERMOMECHANICAL MASS IMPROVING ITS ABSORPTION PROPERTIES
KR960007825B1 (en) A method of producing fiber board
SU899353A1 (en) Method of producing fibrous pulp
GB959375A (en) Manufacture of hardboards, fibre boards and the like
PL184480B1 (en) Method of obtaining fibrous materials exhibiting good moisture absorbing properties
IT1245937B (en) Granular composite based on recycled fibres and inerts for use in building and construction and process for its production
KR910005766A (en) Manufacturing method of powder mugwort tea
ES2004052A6 (en) Procedure for the manufacture of a mineral load of calcium sulfate calorie anhydro micronized (Machine-translation by Google Translate, not legally binding)
KR850006499A (en) Manufacturing method of persimmon juice
TH7984EX (en) Aggregates containing cellulose fibers and their preparation
GB135466A (en)
ES248520A1 (en) Manufacturing procedure of construction elements (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
FC2A Withdrawal, rejection or dismissal of laid open patent application