EP1244840A4 - Blanchiment d'une pulpe a l'oxygene sous haute pression - Google Patents

Blanchiment d'une pulpe a l'oxygene sous haute pression

Info

Publication number: EP1244840A4
Authority: EP; European Patent Office
Prior art keywords: pressure; bleaching pulp; bleaching; pulp
Prior art date: 1999-06-08
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 Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn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

EP00938089A

Other languages

German (de)

English (en)

Other versions

EP1244840A1 (fr

Inventor

William D Vallance

D K Barde

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.)

LINCOLN PAPER & TISSUE, LLC

Original Assignee

Eastern Pulp and Paper Corp

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.)

1999-06-08

Filing date

2000-06-02

Publication date

2003-04-16

2000-06-02 Application filed by Eastern Pulp and Paper Corp filed Critical Eastern Pulp and Paper Corp

2002-10-02 Publication of EP1244840A1 publication Critical patent/EP1244840A1/fr

2003-04-16 Publication of EP1244840A4 publication Critical patent/EP1244840A4/fr

Status Withdrawn legal-status Critical Current

Links

238000004061 bleaching Methods 0.000 title 1

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
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications

Landscapes

Life Sciences & Earth Sciences (AREA)
Engineering & Computer Science (AREA)
Wood Science & Technology (AREA)
Paper (AREA)

EP00938089A 1999-06-08 2000-06-02 Blanchiment d'une pulpe a l'oxygene sous haute pression Withdrawn EP1244840A4 (fr)

Applications Claiming Priority (5)

Application Number	Priority Date	Filing Date	Title
US13804399P	1999-06-08	1999-06-08
US138043P		1999-06-08
US51014000A	2000-02-22	2000-02-22
US510140		2000-02-22
PCT/US2000/015263 WO2000075420A1 (fr)	1999-06-08	2000-06-02	Blanchiment d'une pulpe a l'oxygene sous haute pression

Publications (2)

Publication Number	Publication Date
EP1244840A1 EP1244840A1 (fr)	2002-10-02
EP1244840A4 true EP1244840A4 (fr)	2003-04-16

Family

ID=26835817

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP00938089A Withdrawn EP1244840A4 (fr)	1999-06-08	2000-06-02	Blanchiment d'une pulpe a l'oxygene sous haute pression

Country Status (4)

Country	Link
EP (1)	EP1244840A4 (fr)
AU (1)	AU5317700A (fr)
CA (1)	CA2376528A1 (fr)
WO (1)	WO2000075420A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US20050051288A1 (en) *	2003-09-09	2005-03-10	Caifang Yin	Extended retention and medium consistency pulp treatment
SE528726C2 (sv) *	2004-12-30	2007-01-30	Kvaerner Pulping Tech	Syrgasdelignifiering av cellulosamassa i en högtrycksdel och en lågtrycksdel
FI122812B (fi) *	2007-06-15	2012-07-13	Andritz Oy	Menetelmä nestevirtojen käsittelemiseksi sellutehtaalla

Citations (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3536577A (en) *	1963-07-12	1970-10-27	Hooker Chemical Corp	Bleaching of cellulosic materials with chlorine dioxide
US3652385A (en) *	1969-05-13	1972-03-28	Mo Och Domsjoe Ab	Process for treating cellulosic materials from which metal ions have been removed with alkali and oxygen in the presence of complex magnesium salts
US3725194A (en) *	1967-06-20	1973-04-03	South Africa Pulp And Paper In	Treatment of alkaline pulp with an acidic medium followed by oxygen bleaching and delignification
US4507172A (en) *	1982-09-16	1985-03-26	St. Regis Paper Company	Kraft pulping process
US5034094A (en) *	1987-11-06	1991-07-23	Kurple Kenneth R	Method of converting inorganic materials from kraft pulping liquor into pulping chemicals without passing them through a recovery furnace
WO1991011554A1 (fr) *	1990-01-31	1991-08-08	Eka Nobel Ab	Procede pour blanchir les materiaux lignocellulosiques
BE1005800A3 (fr) *	1992-05-22	1994-02-01	Solvay Interox	Procede pour la delignification et le blanchiment d'une pate a papier chimique.
WO1996012063A1 (fr) *	1994-10-13	1996-04-25	Ahlstrom Machinery Oy	Procede d'elimination de groupes d'acide hexenuronique dans de la pate de cellulose par traitement thermique
US5656130A (en) *	1995-04-28	1997-08-12	Union Camp Holding, Inc.	Ambient temperature pulp bleaching with peroxyacid salts
EP0831170A2 (fr) *	1994-06-27	1998-03-25	Champion International Corporation	Procédé amélioré de recyclage de filtrat d'usine de blanchiment
WO1998021400A1 (fr) *	1996-11-08	1998-05-22	Sunds Defibrator Industries Ab	Preblanchiment de pate a papier realise avant l'etape de blanchiment au peroxyde
EP0899374A1 (fr) *	1997-09-01	1999-03-03	Oji Paper Co., Ltd.	Procédé pour la préparation d'une pâte à papier blanchie

2000
- 2000-06-02 EP EP00938089A patent/EP1244840A4/fr not_active Withdrawn
- 2000-06-02 CA CA002376528A patent/CA2376528A1/fr not_active Abandoned
- 2000-06-02 WO PCT/US2000/015263 patent/WO2000075420A1/fr not_active Ceased
- 2000-06-02 AU AU53177/00A patent/AU5317700A/en not_active Abandoned

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3536577A (en) *	1963-07-12	1970-10-27	Hooker Chemical Corp	Bleaching of cellulosic materials with chlorine dioxide
US3725194A (en) *	1967-06-20	1973-04-03	South Africa Pulp And Paper In	Treatment of alkaline pulp with an acidic medium followed by oxygen bleaching and delignification
US3652385A (en) *	1969-05-13	1972-03-28	Mo Och Domsjoe Ab	Process for treating cellulosic materials from which metal ions have been removed with alkali and oxygen in the presence of complex magnesium salts
US4507172A (en) *	1982-09-16	1985-03-26	St. Regis Paper Company	Kraft pulping process
US5034094A (en) *	1987-11-06	1991-07-23	Kurple Kenneth R	Method of converting inorganic materials from kraft pulping liquor into pulping chemicals without passing them through a recovery furnace
WO1991011554A1 (fr) *	1990-01-31	1991-08-08	Eka Nobel Ab	Procede pour blanchir les materiaux lignocellulosiques
BE1005800A3 (fr) *	1992-05-22	1994-02-01	Solvay Interox	Procede pour la delignification et le blanchiment d'une pate a papier chimique.
EP0831170A2 (fr) *	1994-06-27	1998-03-25	Champion International Corporation	Procédé amélioré de recyclage de filtrat d'usine de blanchiment
WO1996012063A1 (fr) *	1994-10-13	1996-04-25	Ahlstrom Machinery Oy	Procede d'elimination de groupes d'acide hexenuronique dans de la pate de cellulose par traitement thermique
US5656130A (en) *	1995-04-28	1997-08-12	Union Camp Holding, Inc.	Ambient temperature pulp bleaching with peroxyacid salts
WO1998021400A1 (fr) *	1996-11-08	1998-05-22	Sunds Defibrator Industries Ab	Preblanchiment de pate a papier realise avant l'etape de blanchiment au peroxyde
EP0899374A1 (fr) *	1997-09-01	1999-03-03	Oji Paper Co., Ltd.	Procédé pour la préparation d'une pâte à papier blanchie

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ROBITAILLE M A: "HYDROGEN PEROXIDE: A VERSATILE BLEACHING AGENT", PULP AND PAPER CANADA, ST LAURENT, CA, vol. 89, no. 12, 1988, pages 167 - 170, XP002930534 *
See also references of WO0075420A1 *

Also Published As

Publication number	Publication date
CA2376528A1 (fr)	2000-12-14
EP1244840A1 (fr)	2002-10-02
WO2000075420A1 (fr)	2000-12-14
AU5317700A (en)	2000-12-28

Legal Events

Date	Code	Title	Description
2002-08-16	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
2002-10-02	17P	Request for examination filed	Effective date: 20020108
2002-10-02	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
2002-11-13	RIC1	Information provided on ipc code assigned before grant	Free format text: 7D 21C 9/147 A, 7D 21C 9/10 B, 7D 21C 3/02 B
2003-04-09	RIC1	Information provided on ipc code assigned before grant	Ipc: 7D 21C 9/147 A Ipc: 7D 21C 9/10 B Ipc: 7D 21C 3/02 B Ipc: 7D 21C 9/14 B
2003-04-16	A4	Supplementary search report drawn up and despatched	Effective date: 20030303
2004-12-29	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: LINCOLN PAPER & TISSUE, LLC
2005-03-16	17Q	First examination report despatched	Effective date: 20050126
2005-12-23	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
2006-02-08	18D	Application deemed to be withdrawn	Effective date: 20050809

Publication	Publication Date	Title
LU93106I2 (en)	2016-08-16	Property 180 sc
AU1584295A (en)	1995-08-21	Pulp bleaching
ZA959906B (en)	1996-07-18	Chlorine free organosolv pulps
PL339051A1 (en)	2000-09-25	Modified cellulose product
GB9725614D0 (en)	1998-02-04	Bleaching compositions
PL336264A1 (en)	2000-06-19	Hypochlorite-type bleaching compositions
HUP0002255A3 (en)	2001-12-28	Bleaching compositions
EP1015539A4 (fr)	2002-01-30	Compositions de blanchiment
GB2344584B (en)	2001-01-10	Digester
GB9901323D0 (en)	1999-03-10	Freeface 1
GB0301172D0 (en)	2003-02-19	Advent calender
GB0028459D0 (en)	2001-01-10	Glor 2
GB9916299D0 (en)	1999-09-15	Dogex 1
GB9930805D0 (en)	2000-02-16	Bleaching material
TW431450U (en)	2001-04-21	Pulp forming machine
EP1070174A4 (fr)	2001-07-25	Procede biologique kraft a l'eucalyptus
GB9807593D0 (en)	1998-06-10	The crotov pulper
GB2324758B (en)	2002-04-17	Adaptive yarn
GB9807162D0 (en)	1998-06-03	Pulp treatment
GB0308849D0 (en)	2003-05-21	Calender
ZA972337B (en)	1997-09-17	Bleaching of pulp.
GB2339485B (en)	2003-04-16	Advent calender
GB9704685D0 (en)	1997-04-23	New stickies
ZA983197B (en)	1998-11-25	Papermaking process
GB9901272D0 (en)	1999-03-10	Fibres