BR9405754A - Improved process and composition for delignifying cellulosic ligneous material - Google Patents
Improved process and composition for delignifying cellulosic ligneous materialInfo
- Publication number
- BR9405754A BR9405754A BR9405754A BR9405754A BR9405754A BR 9405754 A BR9405754 A BR 9405754A BR 9405754 A BR9405754 A BR 9405754A BR 9405754 A BR9405754 A BR 9405754A BR 9405754 A BR9405754 A BR 9405754A
- Authority
- BR
- Brazil
- Prior art keywords
- composition
- improved process
- ligneous material
- delignifying
- cellulosic
- Prior art date
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 (2)
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 |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9405754A true BR9405754A (en) | 1995-11-28 |
Family
ID=21753173
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9405754A BR9405754A (en) | 1993-02-01 | 1994-01-31 | Improved process and composition for delignifying cellulosic ligneous material |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0681625A4 (en) |
JP (1) | JPH08508791A (en) |
AU (1) | AU6130794A (en) |
BR (1) | BR9405754A (en) |
CA (1) | CA2154778A1 (en) |
FI (1) | FI953651A0 (en) |
NO (1) | NO952913L (en) |
NZ (1) | NZ262009A (en) |
WO (1) | WO1994018386A1 (en) |
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 |
CA2335253A1 (en) * | 1997-06-20 | 1998-12-30 | Blume, Hildegard | Oxidation and bleaching system with enzymatically produced oxidizing agents |
JP4967451B2 (en) * | 2006-05-17 | 2012-07-04 | 三菱瓦斯化学株式会社 | Method for producing bleached pulp |
CA2709526C (en) | 2007-12-20 | 2016-02-02 | Mitsubishi Gas Chemical Company Inc. | Process for production of bleached pulp |
Family Cites Families (4)
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 |
WO1992013993A1 (en) * | 1991-02-12 | 1992-08-20 | Pulp And Paper Research Institute Of Canada | Bleaching of lignocellulosic material with activated oxygen |
IT1251180B (en) * | 1991-08-28 | 1995-05-04 | Ausimont Spa | PROCESS FOR LIGNIN DEGRADATION WITH DIOSSIRANS |
-
1994
- 1994-01-31 CA CA 2154778 patent/CA2154778A1/en not_active Abandoned
- 1994-01-31 NZ NZ26200994A patent/NZ262009A/en unknown
- 1994-01-31 AU AU61307/94A patent/AU6130794A/en not_active Abandoned
- 1994-01-31 JP JP6518129A patent/JPH08508791A/en active Pending
- 1994-01-31 WO PCT/US1994/001085 patent/WO1994018386A1/en not_active Application Discontinuation
- 1994-01-31 EP EP94907926A patent/EP0681625A4/en not_active Withdrawn
- 1994-01-31 BR BR9405754A patent/BR9405754A/en not_active Application Discontinuation
-
1995
- 1995-07-21 NO NO952913A patent/NO952913L/en unknown
- 1995-07-31 FI FI953651A patent/FI953651A0/en unknown
Also Published As
Publication number | Publication date |
---|---|
FI953651A (en) | 1995-07-31 |
JPH08508791A (en) | 1996-09-17 |
EP0681625A1 (en) | 1995-11-15 |
FI953651A0 (en) | 1995-07-31 |
NZ262009A (en) | 1996-06-25 |
CA2154778A1 (en) | 1994-08-18 |
NO952913D0 (en) | 1995-07-21 |
NO952913L (en) | 1995-07-21 |
AU6130794A (en) | 1994-08-29 |
WO1994018386A1 (en) | 1994-08-18 |
EP0681625A4 (en) | 1997-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FA10 | Dismissal: dismissal - article 33 of industrial property law |