[go: up one dir, main page]

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
NO163747B (en
NO875428D0 (en
NO163747C (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)
  • Pens And Brushes (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Paper (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (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 FOERFARANDE FOER CIRKULERING AV FENOL VID EN FENOLKOKNINGSPROCESS AV LIGNOCELLULOSAMATERIAL.

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
US6618913B2 (en) 2000-04-12 2003-09-16 Yugen Kaisha Ichiryu 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
JPS63175188A (en) 1988-07-19
NO163747B (en) 1990-04-02
ZA879483B (en) 1988-05-14
DE3772741D1 (en) 1991-10-10
EP0273759A2 (en) 1988-07-06
BR8707183A (en) 1988-08-09
FI865360L (en) 1988-07-01
FI77062B (en) 1988-09-30
FI77062C (en) 1989-01-10
ATE66974T1 (en) 1991-09-15
EP0273759A3 (en) 1989-08-16
NO875428D0 (en) 1987-12-23
FI865360A0 (en) 1986-12-31
EP0273759B1 (en) 1991-09-04
CA1281714C (en) 1991-03-19
NO163747C (en) 1990-07-11

Similar Documents

Publication Publication Date Title
SE8804578L (en) SET ON CONTINUOUS DISSOLUTION COOKING OF CELLULOSIC FIBER MATERIAL
DK0572388T3 (en) CTMP-process
NO164789C (en) PROCEDURE FOR THE TREATMENT OF CELLULOSE-CONTAINING MATERIALS WITH OXIDING AGENTS.
EP0415149A3 (en) Process for bleaching and delignification of lignocellulosic materials
ES8708031A1 (en) A method of manufacturing bleached chemimechanical and semichemical fibre pulp by means of a one-stage impregnation process.
ATE146538T1 (en) EXTENDED POWER COOKING WITH WHITE LYE ADDED TO THE WASH CIRCUIT
ES8704569A1 (en) Sulphite pulping process for preparing cellulose pulp from lignocellulosic materials with recovery of the pulping chemicals.
SE8304973L (en) PROCEDURE FOR THE PREPARATION OF COOKET LIQUID FOR POWER MASS COOKING
SE8403372D0 (en) PROCEDURE FOR DELIGNIFICATION OF CHEMICAL MASS
NO875428L (en) PROCEDURE FOR THE RECYCLING OF PHENOL IN A COOKING PROCESS FOR LIGNOCELLULOUS CONTAINING MATERIALS.
EP0211558A3 (en) Process for digesting lignocellulosic material
DE2964181D1 (en) Process and apparatus for the continuous cooking of fibrous plant material
MY102502A (en) A process for the manufature of cellulose pulps
CA1180512A (en) Process for reducing carbohydrate losses in the sulfate pulping of wood by pretreating the wood with oxygen and nitrogen oxides
EP0273758A3 (en) Procedure for separating lignin and phenol from phenol solutions
BR9508634A (en) Pulping by alkaline sulfite
ATE111986T1 (en) PROCESS FOR THE PRODUCTION OF HEMICELLULOSIC HYDROLYSATE AND A SPECIAL PULP.
PT74089A (en) Chemical pulp prodn. by boiling in two stages - with intermediate mechanical fibre removal
SE8201369L (en) PROCEDURE FOR THE PREPARATION OF DISSOLVING MASS AND / OR PAPER MASS OF LIGNOCELLULOSAMATER EQUIPMENT FOR THE PERFORMANCE OF THIS PROCEDURE
SE8106501L (en) PROCEDURE FOR THE PREPARATION OF CHEMICAL PAPER Pulp AND SALUNDA PREPARED Pulp
SE8405984D0 (en) PROCEDURE FOR PREPARING SULPHITE CELLULOSA