NO175104C - Method for removing and / or converting lignin from lignocellulosic material - Google Patents
Method for removing and / or converting lignin from lignocellulosic materialInfo
- Publication number
- NO175104C NO175104C NO882808A NO882808A NO175104C NO 175104 C NO175104 C NO 175104C NO 882808 A NO882808 A NO 882808A NO 882808 A NO882808 A NO 882808A NO 175104 C NO175104 C NO 175104C
- Authority
- NO
- Norway
- Prior art keywords
- lignin
- redox potential
- constant
- reaction
- lignocellulosic material
- Prior art date
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)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Compounds Of Unknown Constitution (AREA)
- Enzymes And Modification Thereof (AREA)
- Processing Of Solid Wastes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (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.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
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 |
---|---|
NO882808D0 NO882808D0 (en) | 1988-06-24 |
NO882808L NO882808L (en) | 1988-06-24 |
NO175104B NO175104B (en) | 1994-05-24 |
NO175104C true NO175104C (en) | 1994-08-31 |
Family
ID=6312392
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO882808A NO175104C (en) | 1986-10-24 | 1988-06-24 | Method for removing and / or converting lignin from lignocellulosic material |
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)
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. |
DE4008894A1 (en) * | 1990-03-20 | 1991-09-26 | Call Hans Peter | METHOD FOR RECYCLING PAPER WITH ENZYMATIC PRINT INK REMOVAL |
DE4008893A1 (en) * | 1990-03-20 | 1991-09-26 | Call Hans Peter | METHOD FOR ENZYMATIC BLEACHING OF CELLULAS |
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 |
ES2171880T3 (en) * | 1996-02-08 | 2002-09-16 | Novozymes As | PROCESS TO INCREASE NEGATIVE LOAD IN A LIGNOCELLULOSIC MATERIAL AND A MODIFIED LIGNOCELLULOSIC MATERIAL WITH INCREASED LOAD DENSITY. |
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)
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 |
-
1986
- 1986-10-24 DE DE19863636208 patent/DE3636208A1/en not_active Withdrawn
-
1987
- 1987-10-24 JP JP62506759A patent/JPH0718108B2/en not_active Expired - Lifetime
- 1987-10-24 BR BR8707844A patent/BR8707844A/en not_active IP Right Cessation
- 1987-10-24 DE DE8787907315T patent/DE3784515D1/en not_active Expired - Fee Related
- 1987-10-24 AU AU82303/87A patent/AU605215B2/en not_active Ceased
- 1987-10-24 HU HU875790A patent/HU202938B/en not_active IP Right Cessation
- 1987-10-24 EP EP87907315A patent/EP0327576B1/en not_active Expired - Lifetime
- 1987-10-24 WO PCT/EP1987/000635 patent/WO1988003190A1/en active IP Right Grant
- 1987-10-24 AT AT87907315T patent/ATE86318T1/en not_active IP Right Cessation
- 1987-10-24 HU HU875790A patent/HUT50894A/en unknown
-
1988
- 1988-06-23 DK DK344888A patent/DK170810B1/en not_active IP Right Cessation
- 1988-06-24 NO NO882808A patent/NO175104C/en unknown
-
1989
- 1989-04-21 FI FI891909A patent/FI95289C/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HUT50894A (en) | 1990-03-28 |
AU8230387A (en) | 1988-05-25 |
AU605215B2 (en) | 1991-01-10 |
NO882808D0 (en) | 1988-06-24 |
FI95289C (en) | 1996-01-10 |
DK170810B1 (en) | 1996-01-22 |
NO175104B (en) | 1994-05-24 |
FI95289B (en) | 1995-09-29 |
JPH02500990A (en) | 1990-04-05 |
DE3636208A1 (en) | 1988-05-05 |
FI891909A (en) | 1989-04-21 |
DE3784515D1 (en) | 1993-04-08 |
HU202938B (en) | 1991-04-29 |
BR8707844A (en) | 1989-10-03 |
EP0327576B1 (en) | 1993-03-03 |
DK344888D0 (en) | 1988-06-23 |
FI891909A0 (en) | 1989-04-21 |
NO882808L (en) | 1988-06-24 |
WO1988003190A1 (en) | 1988-05-05 |
DK344888A (en) | 1988-06-23 |
ATE86318T1 (en) | 1993-03-15 |
JPH0718108B2 (en) | 1995-03-01 |
EP0327576A1 (en) | 1989-08-16 |
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