SE9600773L - Medelkonsistens-ljushetsförbättring med ozon av h ögkonsistens-ozonblekt massa - Google Patents

Medelkonsistens-ljushetsförbättring med ozon av h ögkonsistens-ozonblekt massa

Info

Publication number: SE9600773L
Authority: SE; Sweden
Prior art keywords: pulp; ozone; consistency; delignifying; brightness enhancement
Prior art date: 1993-09-03

Application number

SE9600773A

Other languages

English (en)

Other versions

SE9600773D0 (sv

Inventor

W Spencer Eachus

F Omar Ali

George Pangalos

F Bruce Griggs

P Thomas Gandek

A Michael Pikulin

Allen Rosen

Original Assignee

Union Camp Patent Holding

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.)

1993-09-03

Filing date

1996-02-28

Publication date

1996-04-18

1996-02-28 Application filed by Union Camp Patent Holding filed Critical Union Camp Patent Holding

1996-02-28 Publication of SE9600773D0 publication Critical patent/SE9600773D0/sv

1996-04-18 Publication of SE9600773L publication Critical patent/SE9600773L/sv

Links

CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 title abstract 4
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 2
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 2
239000000460 chlorine Substances 0.000 abstract 2
229910052801 chlorine Inorganic materials 0.000 abstract 2
239000001301 oxygen Substances 0.000 abstract 2
229910052760 oxygen Inorganic materials 0.000 abstract 2
238000004061 bleaching Methods 0.000 abstract 1
238000005282 brightening Methods 0.000 abstract 1
150000001875 compounds Chemical class 0.000 abstract 1
239000012467 final product Substances 0.000 abstract 1
239000012978 lignocellulosic material Substances 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1
-1 peroxide compound Chemical class 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
- 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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- 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
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

Landscapes

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

SE9600773A 1993-09-03 1996-02-28 Medelkonsistens-ljushetsförbättring med ozon av h ögkonsistens-ozonblekt massa SE9600773L (sv)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US11677693A	1993-09-03	1993-09-03
PCT/US1994/010050 WO1995006773A1 (en)	1993-09-03	1994-09-01	Medium consistency ozone brightening of high consistency ozone bleached pulp

Publications (2)

Publication Number	Publication Date
SE9600773D0 SE9600773D0 (sv)	1996-02-28
SE9600773L true SE9600773L (sv)	1996-04-18

Family

ID=22369146

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE9600773A SE9600773L (sv)	1993-09-03	1996-02-28	Medelkonsistens-ljushetsförbättring med ozon av h ögkonsistens-ozonblekt massa

Country Status (8)

Country	Link
EP (1)	EP0717800A4 (sv)
AU (1)	AU7721694A (sv)
BR (1)	BR9407457A (sv)
CA (1)	CA2170733A1 (sv)
FI (1)	FI960973A7 (sv)
SE (1)	SE9600773L (sv)
WO (1)	WO1995006773A1 (sv)
ZA (1)	ZA946807B (sv)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2382592A (en) *	2001-11-30	2003-06-04	Sca Hygiene Prod Gmbh	Use of ozone to enhance the wet strength of fibrous cellulosic material
GB2391011A (en) *	2002-07-19	2004-01-28	Crosmill Ltd	Bleaching cellulose suspensions
US9932709B2 (en)	2013-03-15	2018-04-03	Ecolab Usa Inc.	Processes and compositions for brightness improvement in paper production
FR3007044B1 (fr) *	2013-06-13	2016-01-15	Air Liquide	Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5173153A (en) *	1991-01-03	1992-12-22	Union Camp Patent Holding, Inc.	Process for enhanced oxygen delignification using high consistency and a split alkali addition
DE69004492T3 (de) *	1989-06-06	2001-11-15	Eka Nobel Ab, Bohus	Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
AU636173B2 (en) *	1989-10-30	1993-04-22	Lenzing Aktiengesellschaft	Method for the chlorine-free bleaching of pulps
BR9007533A (pt) *	1990-05-17	1992-04-28	Union Camp Corp	Processo para fabricacao de polpa alvejada e para deslignificar e alvejar um material lignoscelulosico
US5328564A (en) *	1990-09-17	1994-07-12	Kamyr, Inc.	Modified digestion of paper pulp followed by ozone bleaching
CA2089516A1 (en) *	1992-02-21	1993-08-22	Kaj Henricson	Chlorine free pulping and bleaching sequence

1994
- 1994-09-01 EP EP94928024A patent/EP0717800A4/en not_active Withdrawn
- 1994-09-01 AU AU77216/94A patent/AU7721694A/en not_active Abandoned
- 1994-09-01 BR BR9407457A patent/BR9407457A/pt not_active Application Discontinuation
- 1994-09-01 WO PCT/US1994/010050 patent/WO1995006773A1/en not_active Ceased
- 1994-09-01 CA CA002170733A patent/CA2170733A1/en not_active Abandoned
- 1994-09-05 ZA ZA946807A patent/ZA946807B/xx unknown
1996
- 1996-02-28 SE SE9600773A patent/SE9600773L/sv not_active Application Discontinuation
- 1996-03-01 FI FI960973A patent/FI960973A7/sv unknown

Also Published As

Publication number	Publication date
FI960973A7 (sv)	1996-04-30
BR9407457A (pt)	1996-11-12
CA2170733A1 (en)	1995-03-09
EP0717800A4 (en)	1998-10-28
AU7721694A (en)	1995-03-22
EP0717800A1 (en)	1996-06-26
SE9600773D0 (sv)	1996-02-28
FI960973A0 (sv)	1996-03-01
ZA946807B (en)	1995-06-28
WO1995006773A1 (en)	1995-03-09

Legal Events

Date

Code

Title

Description

2000-08-07

NAV

Patent application has lapsed

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Format of ref document f/p: F

Publication	Publication Date	Title
FI921886A0 (fi)	1992-04-27	Foerfarande foer blekning av ligno- cellulosahaltig massa.
ZA923074B (en)	1992-12-30	Process for bleaching of lignocellulose-containing material
CA2063591A1 (en)	1991-11-18	Environmentally Improved Process for Bleaching Lignocellulosic Materials
PT754258E (pt)	2002-06-28	Metodo para o tratamento de pasta com um agente de complexacao em conjugacao com uma etapa de tratamento com dioxido de cloro
FI934036L (sv)	1994-09-04	Förfarande för blekning av massa med klorfria kemikalier
SE8902566L (sv)	1990-06-10	Blekning av massa med ozon-klorblandningar
SE9700992L (sv)	1997-05-16	Förfarande för blekning av kraftmassa
FI923420A7 (sv)	1992-07-29	Förfarande för blekning av lignocellulosahaltigt material
SE9600773L (sv)	1996-04-18	Medelkonsistens-ljushetsförbättring med ozon av h ögkonsistens-ozonblekt massa
FI934056L (sv)	1995-03-16	Förfarande för blekning av massa
SE9300277D0 (sv)	1993-01-29	Klorfri massablekning
Balhar et al.	1974	FIVE-DAY BOD GENERATED DURING BLEACHING OF PULP IN THE GEMER PULP AND PAPER MILL(MNOZSTVO BSK (5) PRI BIELENI PAPIERENSKEJ BUNICINY V GEMERSKEJ CELULOZKE A PAPIERNI)
SE9503694D0 (sv)	1995-10-19	Blekning av massa
MY111246A (en)	1999-10-30	Environmentally improved process for bleaching lignocellulosic materials.
SE9403174D0 (sv)	1994-09-21	A Method for the enzymatic treatment of chemical pulp before bleaching