NO942718D0 - Bleking av kjemisk masse - Google Patents

Bleking av kjemisk masse

Info

Publication number: NO942718D0
Authority: NO; Norway
Prior art keywords: bleaching; pulp; thereafter; consistency; complexing agent
Prior art date: 1992-01-21

Application number

NO942718A

Other languages

English (en)

Other versions

NO942718L (no

Inventor

Lars-Aake Lindstrom

K Solveig E Norden

Lars T Sjodin

Maarten Dahl

Original Assignee

Sunds Defibrator Ind Ab

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.)

1992-01-21

Filing date

1994-07-20

Publication date

1994-07-20

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20385065&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO942718(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-07-20 Application filed by Sunds Defibrator Ind Ab filed Critical Sunds Defibrator Ind Ab

1994-07-20 Publication of NO942718L publication Critical patent/NO942718L/no

1994-07-20 Publication of NO942718D0 publication Critical patent/NO942718D0/no

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)
Detergent Compositions (AREA)

NO942718A 1992-01-21 1994-07-20 Bleking av kjemisk masse NO942718D0 (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE9200152A SE469842C (sv)	1992-01-21	1992-01-21	Blekning av kemisk massa med peroxid
PCT/SE1993/000012 WO1993014262A1 (en)	1992-01-21	1993-01-12	Bleaching of chemical pulp

Publications (2)

Publication Number	Publication Date
NO942718L NO942718L (no)	1994-07-20
NO942718D0 true NO942718D0 (no)	1994-07-20

Family

ID=20385065

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO942718A NO942718D0 (no)	1992-01-21	1994-07-20	Bleking av kjemisk masse

Country Status (14)

Country	Link
EP (1)	EP0621915B1 (no)
JP (1)	JPH07503042A (no)
AT (1)	ATE151826T1 (no)
AU (1)	AU653467B2 (no)
BR (1)	BR9305761A (no)
CA (1)	CA2124088A1 (no)
DE (1)	DE69309893T2 (no)
ES (1)	ES2102008T3 (no)
FI (1)	FI943431A0 (no)
NO (1)	NO942718D0 (no)
NZ (1)	NZ246713A (no)
SE (1)	SE469842C (no)
WO (1)	WO1993014262A1 (no)
ZA (1)	ZA93317B (no)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE1004674A3 (fr) *	1991-03-11	1993-01-12	Interox Internat Sa	Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft.
BE1006056A3 (fr) *	1992-07-06	1994-05-03	Solvay Interox	Procede pour le blanchiment d'une pate a papier chimique.
SE501253C2 (sv) *	1993-06-08	1994-12-19	Kvaerner Pulping Tech	Klorfri blekning av kemisk pappersmassa
SE500616C2 (sv) *	1993-06-08	1994-07-25	Kvaerner Pulping Tech	Blekning av kemisk massa med peroxid vid övertryck
WO1995006772A1 (en) *	1993-09-02	1995-03-09	Union Camp Patent Holding, Inc.	Improved method for bleaching lignocellulosic pulp
BE1007757A3 (fr) *	1993-11-10	1995-10-17	Solvay Interox	Procede pour le blanchiment d'une pate a papier chimique.
FR2719854B1 (fr) *	1994-05-11	1996-06-21	Atochem Elf Sa	Procédé de préparation de pâtes à papier chimiques délignifiées et blanchies.
SE514697C2 (sv) *	1994-08-31	2001-04-02	Valmet Fibertech Ab	Eliminering av metalljoner vid blekning av massa

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB8620222D0 (en) *	1986-08-20	1986-10-01	Abitibi Price Inc	Peroxide bleaching
US4732650A (en) *	1986-09-15	1988-03-22	The Dow Chemical Company	Bleaching of cellulosic pulps using hydrogen peroxide
DE69004492T3 (de) *	1989-06-06	2001-11-15	Eka Nobel Ab, Bohus	Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
FI93866B (fi) *	1990-02-09	1995-02-28	Sunds Defibrator Rauma Oy	Menetelmä sulfaattimassan valmistamiseksi

1992
- 1992-01-21 SE SE9200152A patent/SE469842C/sv unknown
1993
- 1993-01-12 ES ES93902618T patent/ES2102008T3/es not_active Expired - Lifetime
- 1993-01-12 BR BR9305761A patent/BR9305761A/pt not_active Application Discontinuation
- 1993-01-12 NZ NZ246713A patent/NZ246713A/en unknown
- 1993-01-12 AT AT93902618T patent/ATE151826T1/de not_active IP Right Cessation
- 1993-01-12 AU AU34125/93A patent/AU653467B2/en not_active Ceased
- 1993-01-12 CA CA002124088A patent/CA2124088A1/en not_active Abandoned
- 1993-01-12 JP JP5512379A patent/JPH07503042A/ja active Pending
- 1993-01-12 WO PCT/SE1993/000012 patent/WO1993014262A1/en not_active Ceased
- 1993-01-12 EP EP93902618A patent/EP0621915B1/en not_active Expired - Lifetime
- 1993-01-12 DE DE69309893T patent/DE69309893T2/de not_active Expired - Fee Related
- 1993-01-12 FI FI943431A patent/FI943431A0/fi unknown
- 1993-01-18 ZA ZA93317A patent/ZA93317B/xx unknown
1994
- 1994-07-20 NO NO942718A patent/NO942718D0/no unknown

Also Published As

Publication number	Publication date
DE69309893D1 (de)	1997-05-22
ZA93317B (en)	1993-08-19
DE69309893T2 (de)	1997-11-06
SE469842B (sv)	1993-09-27
NZ246713A (en)	1995-04-27
EP0621915B1 (en)	1997-04-16
BR9305761A (pt)	1997-01-28
JPH07503042A (ja)	1995-03-30
ATE151826T1 (de)	1997-05-15
FI943431A7 (fi)	1994-07-20
AU653467B2 (en)	1994-09-29
WO1993014262A1 (en)	1993-07-22
SE469842C (sv)	1996-01-15
CA2124088A1 (en)	1993-07-22
FI943431L (fi)	1994-07-20
SE9200152D0 (sv)	1992-01-21
EP0621915A1 (en)	1994-11-02
SE9200152L (sv)	1993-07-22
ES2102008T3 (es)	1997-07-16
FI943431A0 (fi)	1994-07-20
AU3412593A (en)	1993-08-03
NO942718L (no)	1994-07-20

Publication	Publication Date	Title
SE7902901L (sv)	1979-10-05	Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
ATE48290T1 (de)	1989-12-15	Verfahren zur delignifizierung und bleiche von zellstoffen.
NO942718D0 (no)	1994-07-20	Bleking av kjemisk masse
SE9400277D0 (sv)	1994-01-28	oxygen/ozon/perättiksyra-delignifiering och -blekning av cellulosamassor
FI934036L (fi)	1994-09-04	Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
FI890700A0 (fi)	1989-02-14	Menetelmä selluloosamassan valkaisemiseksi
NO923601L (no)	1992-09-16	Fremgangsmaate for enzymatisk bleking av cellulose
SE8003911L (sv)	1981-11-28	Forfarande for syrgasblekning av cellulosamassa
ES2073880T3 (es)	1995-08-16	Procedimiento de blanqueo de materias vegetales en dos etapas.
ATE498735T1 (de)	2011-03-15	Oxidierte weisslauge in einem delignifikationsverfahren
US5741398A (en)	1998-04-21	Method of removing metal ions dissolved in the bleach plant waste water
ES2038954A6 (es)	1993-08-01	Metodo para blanquear pasta de papel.
NO961661L (no)	1996-04-25	Aminoalkandifosfonsyrer ved bleking av masser
FI905954A0 (fi)	1990-12-03	Foerfarande foer blekning av cellulosamassa.
FI905456A0 (fi)	1990-11-02	Foerfarande foer blekning av cellulosamassa.
FI843975L (fi)	1985-04-14	Hypokloritbehandling av kemiska pappersmassor.
SE501253E8 (sv)	1994-12-19	Klorfri blekning av kemisk pappersmassa
SE9303066L (sv)	1995-03-22	Blekning av kemisk massa varvid massan behandlas med komplexbildare före och efter ett ozonsteg
SE9502365D0 (sv)	1995-06-29	Blekning av lignocellulosahaltigt fibermaterial
SE9203366D0 (sv)	1992-11-11	Foerfarande vid delignifiering och/eller blekning av cellulosamassa
SE8904247D0 (sv)	1989-12-18	Foerfarande foer blekning av kemisk cellulosamassa
SE9403174D0 (sv)	1994-09-21	A Method for the enzymatic treatment of chemical pulp before bleaching