BR9405754A - Improved process and composition for delignifying cellulosic ligneous material - Google Patents

Improved process and composition for delignifying cellulosic ligneous material

Info

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
Application number
BR9405754A
Other languages
Portuguese (pt)
Inventor
Raymond C Francis
Daniel J Nicholson
Nicholas A Troughton
Original Assignee
Solvay Interox
Univ New York State Res Found
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 Solvay Interox, Univ New York State Res Found filed Critical Solvay Interox
Publication of BR9405754A publication Critical patent/BR9405754A/en

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)
BR9405754A 1993-02-01 1994-01-31 Improved process and composition for delignifying cellulosic ligneous material BR9405754A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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