DK344888D0 - PROCEDURE FOR MANUFACTURING CELLULOSE FROM LOCATED FRAME MATERIALS - Google Patents

PROCEDURE FOR MANUFACTURING CELLULOSE FROM LOCATED FRAME MATERIALS

Info

Publication number
DK344888D0
DK344888D0 DK344888A DK344888A DK344888D0 DK 344888 D0 DK344888 D0 DK 344888D0 DK 344888 A DK344888 A DK 344888A DK 344888 A DK344888 A DK 344888A DK 344888 D0 DK344888 D0 DK 344888D0
Authority
DK
Denmark
Prior art keywords
lignin
procedure
redox potential
frame materials
constant
Prior art date
Application number
DK344888A
Other languages
Danish (da)
Other versions
DK344888A (en
DK170810B1 (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 DK344888D0 publication Critical patent/DK344888D0/en
Publication of DK344888A publication Critical patent/DK344888A/en
Application granted granted Critical
Publication of DK170810B1 publication Critical patent/DK170810B1/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.
DK344888A 1986-10-24 1988-06-23 Process for the preparation of cellulose from lignin- containing raw materials DK170810B1 (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 (3)

Publication Number Publication Date
DK344888D0 true DK344888D0 (en) 1988-06-23
DK344888A DK344888A (en) 1988-06-23
DK170810B1 DK170810B1 (en) 1996-01-22

Family

ID=6312392

Family Applications (1)

Application Number Title Priority Date Filing Date
DK344888A DK170810B1 (en) 1986-10-24 1988-06-23 Process for the preparation of cellulose from lignin- containing raw 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
FI891909A0 (en) 1989-04-21
EP0327576B1 (en) 1993-03-03
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
B1 Patent granted (law 1993)
PBP Patent lapsed