FI891909A0 - Process for the preparation of cellulose from lignin-containing materials - Google Patents

Process for the preparation of cellulose from lignin-containing materials

Info

Publication number
FI891909A0
FI891909A0 FI891909A FI891909A FI891909A0 FI 891909 A0 FI891909 A0 FI 891909A0 FI 891909 A FI891909 A FI 891909A FI 891909 A FI891909 A FI 891909A FI 891909 A0 FI891909 A0 FI 891909A0
Authority
FI
Finland
Prior art keywords
lignin
redox potential
cellulose
preparation
constant
Prior art date
Application number
FI891909A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI95289B (en
FI891909A (en
FI95289C (en
Inventor
Hans-Peter Call
Original Assignee
Call Hans Peter
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 Call Hans Peter filed Critical Call Hans Peter
Publication of FI891909A0 publication Critical patent/FI891909A0/en
Publication of FI891909A publication Critical patent/FI891909A/en
Publication of FI95289B publication Critical patent/FI95289B/en
Application granted granted Critical
Publication of FI95289C publication Critical patent/FI95289C/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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes
    • 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
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/005—Treatment of cellulose-containing material with microorganisms or enzymes

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Paper (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Enzymes And Modification Thereof (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Processing Of Solid Wastes (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A process and apparatus for transforming and/or extracting lignin or its decomposition products from lignin-cellulosic materials. For this purpose, a redox potential in the 200-500 mV range is set by adding oxidizing and/or reducing agents and/or salts and/or phenolic compounds to an acid aqueous solution of the lignin-containing raw materials. The lignin-decomposing reaction is initiated with bleaching by adding enzymes, micro-organisms, animal or vegetable cells. The reaction is maintained for several hours at a redox potential value oscillating around a constant value, at a constant temperature and with constant agitation.
FI891909A 1986-10-24 1989-04-21 Method for producing cellulose from lignin-containing materials FI95289C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3636208 1986-10-24
DE19863636208 DE3636208A1 (en) 1986-10-24 1986-10-24 METHOD FOR DELIGNIFYING AND WHICH BLEACHING LIGNICELLULOSE-CONTAINING OR LIGNINAL MATERIAL OR LIGNIN BY ENZYMATIC TREATMENT
EP8700635 1987-10-24
PCT/EP1987/000635 WO1988003190A1 (en) 1986-10-24 1987-10-24 Process for producing cellulose from lignin-containing raw materials

Publications (4)

Publication Number Publication Date
FI891909A0 true FI891909A0 (en) 1989-04-21
FI891909A FI891909A (en) 1989-04-21
FI95289B FI95289B (en) 1995-09-29
FI95289C FI95289C (en) 1996-01-10

Family

ID=6312392

Family Applications (1)

Application Number Title Priority Date Filing Date
FI891909A FI95289C (en) 1986-10-24 1989-04-21 Method for producing cellulose from lignin-containing materials

Country Status (11)

Country Link
EP (1) EP0327576B1 (en)
JP (1) JPH0718108B2 (en)
AT (1) ATE86318T1 (en)
AU (1) AU605215B2 (en)
BR (1) BR8707844A (en)
DE (2) DE3636208A1 (en)
DK (1) DK170810B1 (en)
FI (1) FI95289C (en)
HU (2) HU202938B (en)
NO (1) NO175104C (en)
WO (1) WO1988003190A1 (en)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA894239B (en) * 1988-06-08 1990-03-28 Int Paper Co Enzymatic delignification of lignocellulosic material
FI88316C (en) * 1989-07-10 1993-04-26 Enso Gutzeit Oy Process for bleaching cellulose pulp
DE69015294T2 (en) * 1989-09-12 1995-05-18 Sandoz Ag Bleaching wood pulp with enzymes.
NZ235983A (en) * 1989-11-08 1993-01-27 Novo Nordisk As Process for hydrolysis of resins in lignocellulosic pulp using enzymes simultaneously with peroxy bleaching; ctmp fluff-pulp and absorbent articles produced therefrom
FI895501A (en) * 1989-11-17 1991-05-18 Enso Gutzeit Oy FOERFARANDE FOER TILLVERKNING AV MASSA.
FI92414B (en) * 1989-11-27 1994-07-29 Enso Gutzeit Oy Process for mass production
FI85389C (en) * 1989-12-12 1992-04-10 Enso Gutzeit Oy Process for mass production
FI900544A (en) * 1990-02-02 1991-08-03 Enso Gutzeit Oy Tutkimuskeskus FOERFARANDE FOER TILLVERKNING AV MASSA.
DE4008893A1 (en) * 1990-03-20 1991-09-26 Call Hans Peter METHOD FOR ENZYMATIC BLEACHING OF CELLULAS
DE4008894A1 (en) * 1990-03-20 1991-09-26 Call Hans Peter METHOD FOR RECYCLING PAPER WITH ENZYMATIC PRINT INK REMOVAL
DK249990D0 (en) * 1990-10-17 1990-10-17 Novo Nordisk As PROCEDURE FOR ENZYMATIC PULP TREATMENT
EP0486125A1 (en) * 1990-11-13 1992-05-20 JAPAN PULP & PAPER RESEARCH INSTITUTE, INC. Lignocellulolytic composition, process of producing the same and use of the same
FI905954A (en) * 1990-12-03 1992-06-04 Enso Gutzeit Oy FOERFARANDE FOER BLEKNING AV CELLULOSAMASSA.
JPH04240287A (en) * 1991-01-21 1992-08-27 Kobe Steel Ltd Bleaching of pulp
FI93230C (en) * 1991-03-22 1995-03-10 Genencor Int Europ Method for reducing resin difficulties in mechanical pulp
AT400153B (en) * 1991-05-02 1995-10-25 Voest Alpine Ind Anlagen METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE
DE4137761A1 (en) * 1991-05-17 1992-11-19 Call Hans Peter METHOD FOR DELIGNIFYING LIGNOCELLULOSE-CONTAINING MATERIAL, BLEACHING AND TREATING WASTEWATER BY LACCASE WITH EXTENDED EFFECTIVENESS
FI914780A0 (en) * 1991-10-10 1991-10-10 Valtion Teknillinen FOERFARANDE FOER ENTSYMATISK BEHANDLING AV LIGNOCELLULOSAHALTIGA MATERIAL, I SYNNERHET CELLULOSAMASSOR.
CA2115881C (en) * 1993-02-25 2000-05-23 Michael G. Paice Non-chlorine bleaching of kraft pulp
JP3262646B2 (en) * 1993-07-09 2002-03-04 日本製紙株式会社 Pulp bleaching method
SE505980C2 (en) * 1993-12-23 1997-10-27 Bim Kemi Ab Ways to prevent peroxide-degrading enzymes by bleaching with hydrogen peroxide
JP3970930B2 (en) * 1996-02-08 2007-09-05 ノボザイムス アクティーゼルスカブ Method for producing lignocellulosic material and product obtained by the method
DE19820947B4 (en) * 1997-05-12 2005-12-01 Call, Krimhild Enzymatic bleaching system with novel enzyme action enhancing compounds for altering, degrading or bleaching lignin, lignin containing materials, or altering or degrading coal, and methods using the bleaching system
US6824646B2 (en) 1999-03-23 2004-11-30 Oji Paper Co., Ltd. Process for oxygen bleaching and enzyme treating lignocellulosic pulp with liquid treatment and recovery
US6942754B2 (en) 1999-03-23 2005-09-13 Oji Paper Co., Ltd. Process for producing xylooligosaccharide from lignocellulose pulp

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1262117B (en) * 1964-05-05 1968-02-29 Aschaffenburger Zellstoffwerke Procedure for controlling bleaching with chlorine dioxide
FR1524581A (en) * 1966-05-25 1968-05-10 Solvay Process for adjusting the whiteness of cellulose pulp treated with hydrogen peroxide or a similar product
CA1232850A (en) * 1985-01-17 1988-02-16 Albert D. Friesen Purification of superoxide dismutase

Also Published As

Publication number Publication date
ATE86318T1 (en) 1993-03-15
NO882808L (en) 1988-06-24
EP0327576B1 (en) 1993-03-03
DK344888D0 (en) 1988-06-23
WO1988003190A1 (en) 1988-05-05
AU8230387A (en) 1988-05-25
FI95289B (en) 1995-09-29
DE3784515D1 (en) 1993-04-08
BR8707844A (en) 1989-10-03
DE3636208A1 (en) 1988-05-05
DK344888A (en) 1988-06-23
DK170810B1 (en) 1996-01-22
JPH02500990A (en) 1990-04-05
JPH0718108B2 (en) 1995-03-01
AU605215B2 (en) 1991-01-10
HUT50894A (en) 1990-03-28
NO882808D0 (en) 1988-06-24
NO175104C (en) 1994-08-31
NO175104B (en) 1994-05-24
FI891909A (en) 1989-04-21
HU202938B (en) 1991-04-29
FI95289C (en) 1996-01-10
EP0327576A1 (en) 1989-08-16

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Legal Events

Date Code Title Description
BB Publication of examined application
MM Patent lapsed
MM Patent lapsed

Owner name: CALL, HANS-PETER