EP0681625A4 - Improved process and composition for delignifying a lignocellulosic material. - Google Patents

Improved process and composition for delignifying 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Withdrawn
Application number
EP94907926A
Other languages
German (de)
French (fr)
Other versions
EP0681625A1 (en
Inventor
Raymond C Francis
Daniel J Nicholson
Nicolas A Troughton
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Research Foundation of State University of New York
Solvay Interox Inc
Original Assignee
Research Foundation of State University of New York
Solvay Interox Inc
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 Research Foundation of State University of New York, Solvay Interox Inc filed Critical Research Foundation of State University of New York
Publication of EP0681625A1 publication Critical patent/EP0681625A1/en
Publication of EP0681625A4 publication Critical patent/EP0681625A4/en
Withdrawn legal-status Critical Current

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
EP94907926A 1993-02-01 1994-01-31 Improved process and composition for delignifying a lignocellulosic material. Withdrawn EP0681625A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US1205793A 1993-02-01 1993-02-01
US12057 1993-02-01
PCT/US1994/001085 WO1994018386A1 (en) 1993-02-01 1994-01-31 Improved process and composition for delignifying a lignocellulosic material

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 delignifying a lignocellulosic 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) FI953651A (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
EP1012376A2 (en) * 1997-06-20 2000-06-28 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
WO2009081714A1 (en) 2007-12-20 2009-07-02 Mitsubishi Gas Chemical Company, Inc. Process for production of bleached pulp

Citations (1)

* Cited by examiner, † Cited by third party
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)

* 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
DE69202149T2 (en) * 1991-02-12 1995-11-09 Pulp Paper Res Inst Bleaching lignocellulosic materials with activated oxygen.

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Title
See also references of WO9418386A1 *

Also Published As

Publication number Publication date
NO952913D0 (en) 1995-07-21
WO1994018386A1 (en) 1994-08-18
EP0681625A1 (en) 1995-11-15
FI953651A0 (en) 1995-07-31
NO952913L (en) 1995-07-21
CA2154778A1 (en) 1994-08-18
AU6130794A (en) 1994-08-29
FI953651A (en) 1995-07-31
NZ262009A (en) 1996-06-25
BR9405754A (en) 1995-11-28
JPH08508791A (en) 1996-09-17

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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

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Inventor name: TROUGHTON, NICOLAS A.

Inventor name: NICHOLSON, DANIEL, J.

Inventor name: FRANCIS, RAYMOND, C.

A4 Supplementary search report drawn up and despatched

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