ATE74980T1 - PROCESS FOR GRINDING LIGNOCELLULOSIC MATERIALS. - Google Patents

PROCESS FOR GRINDING LIGNOCELLULOSIC MATERIALS.

Info

Publication number
ATE74980T1
ATE74980T1 AT89400319T AT89400319T ATE74980T1 AT E74980 T1 ATE74980 T1 AT E74980T1 AT 89400319 T AT89400319 T AT 89400319T AT 89400319 T AT89400319 T AT 89400319T AT E74980 T1 ATE74980 T1 AT E74980T1
Authority
AT
Austria
Prior art keywords
lignocellulosic materials
type
grinding lignocellulosic
grinding
chippings
Prior art date
Application number
AT89400319T
Other languages
German (de)
Inventor
Jean Paul Delaroche
Original Assignee
Beghin Say Sa
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 Beghin Say Sa filed Critical Beghin Say Sa
Application granted granted Critical
Publication of ATE74980T1 publication Critical patent/ATE74980T1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/32—Hammer mills
    • 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
    • D21B1/02—Pretreatment of the raw materials by chemical or physical means
    • D21B1/021—Pretreatment of the raw materials by chemical or physical means by chemical means
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Paper (AREA)
  • Seasonings (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Disintegrating Or Milling (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
  • Crushing And Grinding (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)

Abstract

Process for mechanical fibre removal from a lignocellulose material obtained by a preliminary impregnation treatment of chippings by a reagent which promotes softening of the lignin. Said process is characterized in that it consists in passing the material through an apparatus (20) of the crusher type with hammers and a cylindrical grid. This process ensures that the pulp obtained has a maximum of long fibres. The process also offers a lower energy consumption than in conventional disk-type refiners.
AT89400319T 1988-02-05 1989-02-03 PROCESS FOR GRINDING LIGNOCELLULOSIC MATERIALS. ATE74980T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8801333A FR2626905A1 (en) 1988-02-05 1988-02-05 PROCESS FOR DEFIBRING A LIGNOCELLULOSIC MATERIAL
EP89400319A EP0327469B1 (en) 1988-02-05 1989-02-03 Process for defibrillating lignocellulosic material

Publications (1)

Publication Number Publication Date
ATE74980T1 true ATE74980T1 (en) 1992-05-15

Family

ID=9362956

Family Applications (1)

Application Number Title Priority Date Filing Date
AT89400319T ATE74980T1 (en) 1988-02-05 1989-02-03 PROCESS FOR GRINDING LIGNOCELLULOSIC MATERIALS.

Country Status (10)

Country Link
EP (1) EP0327469B1 (en)
JP (1) JPH02503096A (en)
AT (1) ATE74980T1 (en)
BR (1) BR8905289A (en)
DE (1) DE68901187D1 (en)
DK (1) DK488089D0 (en)
FI (1) FI894649A0 (en)
FR (1) FR2626905A1 (en)
IE (1) IE890243L (en)
WO (1) WO1989007169A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2723598B1 (en) * 1994-08-10 1996-10-18 Sorgho Agro Ind Et Papetier Sa PROCESS FOR DEMOELLING MARINE PLANTS, ESPECIALLY SORGHO, IN ORDER TO OBTAIN PAPER QUALITY FIBERS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH166508A (en) * 1932-10-13 1934-01-15 Asplund Arne J A Process for the defibration of lignin cellulose material.
US1949534A (en) * 1933-05-08 1934-03-06 Sturtevant Mill Co Method of and apparatus for hydrating cellulose pulp
FR1080539A (en) * 1953-02-04 1954-12-09 Process for defibrating and refining cellulosic materials by percussion and abrasion
FR1104813A (en) * 1953-04-25 1955-11-24 Process for simultaneous defibration and washing or refining of fibrous materials and installation for carrying out the process
GB752534A (en) * 1953-10-13 1956-07-11 Aschaffenburger Zellstoffwerke Method of defibring incompletely defibred vegetable material
FR2418295A1 (en) * 1978-02-27 1979-09-21 Creusot Loire METHOD AND INSTALLATION FOR THE CONTINUOUS PROCESSING OF A CELLULOSIC MATERIAL

Also Published As

Publication number Publication date
BR8905289A (en) 1990-08-21
IE890243L (en) 1989-08-05
WO1989007169A1 (en) 1989-08-10
FR2626905A1 (en) 1989-08-11
FI894649A (en) 1989-10-02
DK488089A (en) 1989-10-04
JPH02503096A (en) 1990-09-27
DE68901187D1 (en) 1992-05-21
DK488089D0 (en) 1989-10-04
FI894649A0 (en) 1989-10-02
EP0327469A1 (en) 1989-08-09
EP0327469B1 (en) 1992-04-15

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties