NO20091815L - Bleking av tremasse - Google Patents

Bleking av tremasse

Info

Publication number: NO20091815L
Authority: NO; Norway
Prior art keywords: chlorine dioxide; bleaching; wood pulp; relates; cellulose pulp
Prior art date: 2006-10-11

Application number

NO20091815A

Other languages

English (en)

Norwegian (no)

Inventor

Thomas Christopher Greschik

Magnus Bjorklund

Hakan Fagersten

Original Assignee

Akzo Nobel Nv

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.)

2006-10-11

Filing date

2009-05-08

Publication date

2009-07-10

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37807769&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO20091815(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

2009-05-08 Application filed by Akzo Nobel Nv filed Critical Akzo Nobel Nv

2009-07-10 Publication of NO20091815L publication Critical patent/NO20091815L/no

Links

238000004061 bleaching Methods 0.000 title abstract 3
229920001131 Pulp (paper) Polymers 0.000 title 1
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 8
239000004155 Chlorine dioxide Substances 0.000 abstract 4
235000019398 chlorine dioxide Nutrition 0.000 abstract 4
238000000034 method Methods 0.000 abstract 4
229920002678 cellulose Polymers 0.000 abstract 2
239000001913 cellulose Substances 0.000 abstract 2
239000002253 acid Substances 0.000 abstract 1
238000009835 boiling Methods 0.000 abstract 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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/142—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 in a multistage process involving ClO2/Cl2 exclusively

Landscapes

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

NO20091815A 2006-10-11 2009-05-08 Bleking av tremasse NO20091815L (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
EP06122119		2006-10-11
PCT/SE2007/050630 WO2008044988A1 (en)	2006-10-11	2007-09-06	Bleaching of pulp

Publications (1)

Publication Number	Publication Date
NO20091815L true NO20091815L (no)	2009-07-10

Family

ID=37807769

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO20091815A NO20091815L (no)	2006-10-11	2009-05-08	Bleking av tremasse

Country Status (12)

Country	Link
EP (1)	EP2082096B1 (pt)
AR (1)	AR063160A1 (pt)
BR (1)	BRPI0719893A2 (pt)
CA (1)	CA2665969C (pt)
CL (1)	CL2007002906A1 (pt)
EA (1)	EA013901B1 (pt)
ES (1)	ES2403371T3 (pt)
NO (1)	NO20091815L (pt)
PT (1)	PT2082096E (pt)
UY (1)	UY30634A1 (pt)
WO (1)	WO2008044988A1 (pt)
ZA (1)	ZA200903205B (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI20105862A0 (fi)	2010-08-18	2010-08-18	Bo Akademi University	Menetelmä hekseeniuronihappojen poistamiseksi
EP3030710B1 (en)	2013-08-09	2017-10-11	Novozymes A/S	Reducing content of hexenuronic acids in cellulosic pulp

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3501374A (en) *	1968-12-26	1970-03-17	Hooker Chemical Corp	Sequential bleaching of kraft pulp with chlorine dioxide and chlorine
US5268075A (en) *	1989-10-19	1993-12-07	North Carolina State University	High efficiency two-step, high-low pH chlorine dioxide pulp bleaching process
US5030324A (en) *	1990-01-29	1991-07-09	Champion International Corporation	Sequential bleaching procedure using chlorine and chlorine dioxide in a first chlorination stage of a multistage bleaching process
US6776876B1 (en) *	1994-10-13	2004-08-17	Andritz Oy	Method of treating cellulosic pulp to remove hexenuronic acid
FI119383B (fi) *	1998-03-06	2008-10-31	Andritz Oy	Menetelmä massan käsittelemiseksi
WO2002099186A1 (en) *	2001-06-06	2002-12-12	Kvaerner Pulping Ab	Reduction of organically bound chlorine formed in chlorine dioxide bleaching
US20060201642A1 (en) *	2005-03-08	2006-09-14	Andritz Inc.	Methods of treating chemical cellulose pulp

2007
- 2007-09-06 CA CA2665969A patent/CA2665969C/en not_active Expired - Fee Related
- 2007-09-06 EP EP07808867A patent/EP2082096B1/en not_active Not-in-force
- 2007-09-06 WO PCT/SE2007/050630 patent/WO2008044988A1/en not_active Ceased
- 2007-09-06 BR BRPI0719893-0A2A patent/BRPI0719893A2/pt not_active Application Discontinuation
- 2007-09-06 ES ES07808867T patent/ES2403371T3/es active Active
- 2007-09-06 PT PT07808867T patent/PT2082096E/pt unknown
- 2007-09-06 EA EA200970367A patent/EA013901B1/ru not_active IP Right Cessation
- 2007-10-08 UY UY30634A patent/UY30634A1/es not_active Application Discontinuation
- 2007-10-09 CL CL2007002906A patent/CL2007002906A1/es unknown
- 2007-10-09 AR ARP070104434 patent/AR063160A1/es active IP Right Grant
2009
- 2009-05-08 NO NO20091815A patent/NO20091815L/no not_active Application Discontinuation
- 2009-05-08 ZA ZA200903205A patent/ZA200903205B/xx unknown

Also Published As

Publication number	Publication date
WO2008044988A1 (en)	2008-04-17
ZA200903205B (en)	2010-03-31
AR063160A1 (es)	2008-12-30
EA013901B1 (ru)	2010-08-30
BRPI0719893A2 (pt)	2014-05-06
CL2007002906A1 (es)	2008-05-02
PT2082096E (pt)	2013-04-26
ES2403371T3 (es)	2013-05-17
CA2665969C (en)	2016-04-12
EA200970367A1 (ru)	2009-08-28
UY30634A1 (es)	2007-11-30
EP2082096B1 (en)	2013-02-20
CA2665969A1 (en)	2008-04-17
EP2082096A1 (en)	2009-07-29

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Legal Events

Date	Code	Title	Description
2009-09-21	CREP	Change of representative	Representative=s name: OSLO PATENTKONTOR AS, POSTBOKS 7007 MAJORSTUA, 030
2015-04-27	FC2A	Withdrawal, rejection or dismissal of laid open patent application