ATE66974T1 - PROCESS FOR RECYCLING PHENOL IN A PROCESS FOR PUBLING LIGNOCELLULOUS MATERIALS. - Google Patents

PROCESS FOR RECYCLING PHENOL IN A PROCESS FOR PUBLING LIGNOCELLULOUS MATERIALS.

Info

Publication number
ATE66974T1
ATE66974T1 AT87311493T AT87311493T ATE66974T1 AT E66974 T1 ATE66974 T1 AT E66974T1 AT 87311493 T AT87311493 T AT 87311493T AT 87311493 T AT87311493 T AT 87311493T AT E66974 T1 ATE66974 T1 AT E66974T1
Authority
AT
Austria
Prior art keywords
phenol
materials
publing
lignocellulous
lignocellulosic material
Prior art date
Application number
AT87311493T
Other languages
German (de)
Inventor
Kurt Ekman
Original Assignee
Neste Oy
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 Neste Oy filed Critical Neste Oy
Application granted granted Critical
Publication of ATE66974T1 publication Critical patent/ATE66974T1/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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents

Landscapes

  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pens And Brushes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Paper (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

A process for recirculating phenol in a lignocellulosic materials digestion process in which lignocellulosic material is digested with phenol-containing solutions in order to dissolve lignin, characterised in that phenol recirculation is carried out as a cyclic process in which the phenol-containing solution is first used in the washing of the cellulosic material from the phenol digeston, thereafter in the lignocellulosic material digestion step, and finally in a lignocellulosic material impregnation step preceding the phenol digestion process.
AT87311493T 1986-12-31 1987-12-29 PROCESS FOR RECYCLING PHENOL IN A PROCESS FOR PUBLING LIGNOCELLULOUS MATERIALS. ATE66974T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI865360A FI77062C (en) 1986-12-31 1986-12-31 FOERFARANDE FOER CIRKULERING AV FENOL VID EN FENOLKOKNINGSPROCESS AV LIGNOCELLULOSAMATERIAL.
EP87311493A EP0273759B1 (en) 1986-12-31 1987-12-29 Procedure for recirculating phenol in a lignocellulosic materials digestion process

Publications (1)

Publication Number Publication Date
ATE66974T1 true ATE66974T1 (en) 1991-09-15

Family

ID=8523726

Family Applications (1)

Application Number Title Priority Date Filing Date
AT87311493T ATE66974T1 (en) 1986-12-31 1987-12-29 PROCESS FOR RECYCLING PHENOL IN A PROCESS FOR PUBLING LIGNOCELLULOUS MATERIALS.

Country Status (9)

Country Link
EP (1) EP0273759B1 (en)
JP (1) JPS63175188A (en)
AT (1) ATE66974T1 (en)
BR (1) BR8707183A (en)
CA (1) CA1281714C (en)
DE (1) DE3772741D1 (en)
FI (1) FI77062C (en)
NO (1) NO163747C (en)
ZA (1) ZA879483B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19856582C1 (en) * 1998-12-08 2001-03-15 Rhodia Acetow Ag Process for the production of chemical pulp from wood chips
CN1422344A (en) 2000-04-12 2003-06-04 有限会社一柳 Decorative ribbon forming device, and decorative ribbon forming and mounting device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653054A5 (en) * 1981-12-10 1985-12-13 Battelle Memorial Institute PROCESS FOR DELIGNIFYING WOOD AND OTHER LIGNOCELLULOSIC PRODUCTS.

Also Published As

Publication number Publication date
NO875428D0 (en) 1987-12-23
EP0273759B1 (en) 1991-09-04
NO163747C (en) 1990-07-11
FI865360L (en) 1988-07-01
JPS63175188A (en) 1988-07-19
FI865360A0 (en) 1986-12-31
BR8707183A (en) 1988-08-09
ZA879483B (en) 1988-05-14
DE3772741D1 (en) 1991-10-10
EP0273759A2 (en) 1988-07-06
NO163747B (en) 1990-04-02
CA1281714C (en) 1991-03-19
NO875428L (en) 1988-07-01
FI77062B (en) 1988-09-30
EP0273759A3 (en) 1989-08-16
FI77062C (en) 1989-01-10

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