NO875428L - PROCEDURE FOR THE RECYCLING OF PHENOL IN A COOKING PROCESS FOR LIGNOCELLULOUS CONTAINING MATERIALS. - Google Patents

PROCEDURE FOR THE RECYCLING OF PHENOL IN A COOKING PROCESS FOR LIGNOCELLULOUS CONTAINING MATERIALS.

Info

Publication number
NO875428L
NO875428L NO875428A NO875428A NO875428L NO 875428 L NO875428 L NO 875428L NO 875428 A NO875428 A NO 875428A NO 875428 A NO875428 A NO 875428A NO 875428 L NO875428 L NO 875428L
Authority
NO
Norway
Prior art keywords
phenol
lignocellulous
recycling
procedure
containing materials
Prior art date
Application number
NO875428A
Other languages
Norwegian (no)
Other versions
NO163747C (en
NO163747B (en
NO875428D0 (en
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
Publication of NO875428D0 publication Critical patent/NO875428D0/en
Publication of NO875428L publication Critical patent/NO875428L/en
Publication of NO163747B publication Critical patent/NO163747B/en
Publication of NO163747C publication Critical patent/NO163747C/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

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (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)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Pens And Brushes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Paper (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.
NO875428A 1986-12-31 1987-12-23 PROCEDURE FOR THE RECYCLING OF PHENOL IN A COOKING PROCESS FOR LIGNOCELLULOUS CONTAINING MATERIALS. NO163747C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI865360A FI77062C (en) 1986-12-31 1986-12-31 Process for circulating phenol in a phenolic boiling process of lig nocellulose material

Publications (4)

Publication Number Publication Date
NO875428D0 NO875428D0 (en) 1987-12-23
NO875428L true NO875428L (en) 1988-07-01
NO163747B NO163747B (en) 1990-04-02
NO163747C NO163747C (en) 1990-07-11

Family

ID=8523726

Family Applications (1)

Application Number Title Priority Date Filing Date
NO875428A NO163747C (en) 1986-12-31 1987-12-23 PROCEDURE FOR THE RECYCLING OF PHENOL IN A COOKING PROCESS FOR LIGNOCELLULOUS CONTAINING 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
JP3393130B2 (en) 2000-04-12 2003-04-07 有限会社一柳 Decorative ribbon molding and mounting equipment for wrapping

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES518003A0 (en) * 1981-12-10 1984-05-01 Battelle Memorial Institute PROCEDURE TO DE-LIGNIFY WOOD AND SIMILAR PRODUCTS.

Also Published As

Publication number Publication date
JPS63175188A (en) 1988-07-19
BR8707183A (en) 1988-08-09
FI865360A0 (en) 1986-12-31
FI77062C (en) 1989-01-10
ZA879483B (en) 1988-05-14
NO163747C (en) 1990-07-11
CA1281714C (en) 1991-03-19
NO163747B (en) 1990-04-02
FI865360A (en) 1988-07-01
ATE66974T1 (en) 1991-09-15
FI77062B (en) 1988-09-30
EP0273759A3 (en) 1989-08-16
DE3772741D1 (en) 1991-10-10
NO875428D0 (en) 1987-12-23
EP0273759B1 (en) 1991-09-04
EP0273759A2 (en) 1988-07-06

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