EP0681625A4 - IMPROVED PROCESS AND COMPOSITION FOR DELIGNIFICATION OF A LIGNOCELLULOSIC MATERIAL. - Google Patents
IMPROVED PROCESS AND COMPOSITION FOR DELIGNIFICATION OF A LIGNOCELLULOSIC MATERIAL.Info
- Publication number
- EP0681625A4 EP0681625A4 EP94907926A EP94907926A EP0681625A4 EP 0681625 A4 EP0681625 A4 EP 0681625A4 EP 94907926 A EP94907926 A EP 94907926A EP 94907926 A EP94907926 A EP 94907926A EP 0681625 A4 EP0681625 A4 EP 0681625A4
- Authority
- EP
- European Patent Office
- Prior art keywords
- delignifying
- composition
- improved process
- lignocellulosic material
- lignocellulosic
- Prior art date
- Legal status (The legal status 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 status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B15/00—Peroxides; Peroxyhydrates; Peroxyacids or salts thereof; Superoxides; Ozonides
- C01B15/055—Peroxyhydrates; Peroxyacids or salts thereof
- C01B15/06—Peroxyhydrates; Peroxyacids or salts thereof containing sulfur
- C01B15/08—Peroxysulfates
-
- 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/1026—Other features in bleaching processes
- D21C9/1036—Use of compounds accelerating or improving the efficiency of the 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
- 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
-
- 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
- D21C9/10—Bleaching ; Apparatus therefor
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US1205793A | 1993-02-01 | 1993-02-01 | |
PCT/US1994/001085 WO1994018386A1 (en) | 1993-02-01 | 1994-01-31 | Improved process and composition for delignifying a lignocellulosic material |
US12057 | 2001-12-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0681625A1 EP0681625A1 (en) | 1995-11-15 |
EP0681625A4 true EP0681625A4 (en) | 1997-03-12 |
Family
ID=21753173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94907926A Withdrawn EP0681625A4 (en) | 1993-02-01 | 1994-01-31 | IMPROVED PROCESS AND COMPOSITION FOR DELIGNIFICATION OF A LIGNOCELLULOSIC MATERIAL. |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0681625A4 (ja) |
JP (1) | JPH08508791A (ja) |
AU (1) | AU6130794A (ja) |
BR (1) | BR9405754A (ja) |
CA (1) | CA2154778A1 (ja) |
FI (1) | FI953651A0 (ja) |
NO (1) | NO952913L (ja) |
NZ (1) | NZ262009A (ja) |
WO (1) | WO1994018386A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5770011A (en) * | 1995-11-17 | 1998-06-23 | International Paper Company | Neutral monoperoxysulfate bleaching process |
EP1012376A2 (de) * | 1997-06-20 | 2000-06-28 | Blume, Hildegard | Oxidations- und bleichsystem mit enzymatisch hergestellten oxidationsmitteln |
JP4967451B2 (ja) | 2006-05-17 | 2012-07-04 | 三菱瓦斯化学株式会社 | 漂白パルプの製造方法 |
CN101903591A (zh) | 2007-12-20 | 2010-12-01 | 三菱瓦斯化学株式会社 | 漂白纸浆的制造方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0529326A1 (en) * | 1991-08-28 | 1993-03-03 | AUSIMONT S.p.A. | Process for the degradation of lignin by means of dioxiranes |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1368400A (en) * | 1971-08-05 | 1974-09-25 | Procter & Gamble | Bleaching process and compositions therefor |
US4404061A (en) * | 1981-08-17 | 1983-09-13 | International Paper Company | Bleaching of lignocellulosic materials with monopersulfuric acid or its salts |
DE69202149T2 (de) * | 1991-02-12 | 1995-11-09 | Pulp Paper Res Inst | Bleichen von lignocellulosischen Materialien mit aktiviertem Sauerstoff. |
-
1994
- 1994-01-31 CA CA 2154778 patent/CA2154778A1/en not_active Abandoned
- 1994-01-31 EP EP94907926A patent/EP0681625A4/en not_active Withdrawn
- 1994-01-31 AU AU61307/94A patent/AU6130794A/en not_active Abandoned
- 1994-01-31 JP JP6518129A patent/JPH08508791A/ja active Pending
- 1994-01-31 WO PCT/US1994/001085 patent/WO1994018386A1/en not_active Application Discontinuation
- 1994-01-31 NZ NZ26200994A patent/NZ262009A/en unknown
- 1994-01-31 BR BR9405754A patent/BR9405754A/pt not_active Application Discontinuation
-
1995
- 1995-07-21 NO NO952913A patent/NO952913L/no unknown
- 1995-07-31 FI FI953651A patent/FI953651A0/fi unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0529326A1 (en) * | 1991-08-28 | 1993-03-03 | AUSIMONT S.p.A. | Process for the degradation of lignin by means of dioxiranes |
Non-Patent Citations (1)
Title |
---|
See also references of WO9418386A1 * |
Also Published As
Publication number | Publication date |
---|---|
BR9405754A (pt) | 1995-11-28 |
FI953651A (fi) | 1995-07-31 |
AU6130794A (en) | 1994-08-29 |
WO1994018386A1 (en) | 1994-08-18 |
EP0681625A1 (en) | 1995-11-15 |
JPH08508791A (ja) | 1996-09-17 |
FI953651A0 (fi) | 1995-07-31 |
NO952913D0 (no) | 1995-07-21 |
CA2154778A1 (en) | 1994-08-18 |
NZ262009A (en) | 1996-06-25 |
NO952913L (no) | 1995-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19950818 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE ES FR GB IT PT SE |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: TROUGHTON, NICOLAS A. Inventor name: NICHOLSON, DANIEL, J. Inventor name: FRANCIS, RAYMOND, C. |
|
A4 | Supplementary search report drawn up and despatched |
Effective date: 19970122 |
|
AK | Designated contracting states |
Kind code of ref document: A4 Designated state(s): BE DE ES FR GB IT PT SE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970416 |