CA2175817A1 - Procede pour le blanchiment d'une pate a papier chimique - Google Patents

Procede pour le blanchiment d'une pate a papier chimique

Info

Publication number: CA2175817A1
Authority: CA; Canada
Prior art keywords: sequence; stage; process according; acid; paste
Prior art date: 1993-11-04
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.): Abandoned

Application number

CA002175817A

Other languages

English (en)

French (fr)

Inventor

Francois Desprez

Johan Devenyns

Nicholas 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.)

Solvay Chimie SA

Original Assignee

Individual

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.)

1993-11-04

Filing date

1994-10-28

Publication date

1995-05-11

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3887524&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2175817(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-10-28 Application filed by Individual filed Critical Individual

1995-05-11 Publication of CA2175817A1 publication Critical patent/CA2175817A1/fr

Status Abandoned legal-status Critical Current

Links

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
- D21C9/1026—Other features in bleaching processes
- D21C9/1042—Use of chelating agents
- 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)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Silver Salt Photography Or Processing Solution Therefor (AREA)

CA002175817A 1993-11-04 1994-10-28 Procede pour le blanchiment d'une pate a papier chimique Abandoned CA2175817A1 (fr)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
BE9301215		1993-11-04
BE9301215A BE1007700A3 (fr)	1993-11-04	1993-11-04	Procede pour le blanchiment d'une pate a papier chimique.
PCT/EP1994/003591 WO1995012709A1 (fr)	1993-11-04	1994-10-28	Procede pour le blanchiment d'une pate a papier chimique

Publications (1)

Publication Number	Publication Date
CA2175817A1 true CA2175817A1 (fr)	1995-05-11

Family

ID=3887524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA002175817A Abandoned CA2175817A1 (fr)	1993-11-04	1994-10-28	Procede pour le blanchiment d'une pate a papier chimique

Country Status (15)

Country	Link
EP (1)	EP0726979B1 (de)
JP (1)	JPH09507096A (de)
AT (1)	ATE166118T1 (de)
AU (1)	AU7994094A (de)
BE (1)	BE1007700A3 (de)
BR (1)	BR9407976A (de)
CA (1)	CA2175817A1 (de)
DE (1)	DE69410286T2 (de)
ES (1)	ES2119234T3 (de)
FI (1)	FI961895A (de)
MA (1)	MA23365A1 (de)
NO (1)	NO961817L (de)
NZ (1)	NZ274852A (de)
WO (1)	WO1995012709A1 (de)
ZA (1)	ZA948562B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE1007757A3 (fr) *	1993-11-10	1995-10-17	Solvay Interox	Procede pour le blanchiment d'une pate a papier chimique.
FI105701B (fi) *	1995-10-20	2000-09-29	Ahlstrom Machinery Oy	Menetelmä ja laitteisto massan käsittelemiseksi

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2582692B1 (fr) *	1985-05-29	1987-12-11	Atochem	Traitement de pates papetieres chimiques par le peroxyde d'hydrogene en vue de leur blanchiment
DK0402335T4 (da) *	1989-06-06	2001-06-25	Eka Chemicals Ab	Fremgangsmåde til blegning af lignocelluloseholdigpulp
FR2655668B1 (fr) *	1989-12-11	1995-06-09	Du Pin Cellulose	Procede de blanchiment de pates cellulosiques chimiques.

1993
- 1993-11-04 BE BE9301215A patent/BE1007700A3/fr not_active IP Right Cessation
1994
- 1994-10-28 ES ES94931026T patent/ES2119234T3/es not_active Expired - Lifetime
- 1994-10-28 AT AT94931026T patent/ATE166118T1/de not_active IP Right Cessation
- 1994-10-28 DE DE69410286T patent/DE69410286T2/de not_active Revoked
- 1994-10-28 WO PCT/EP1994/003591 patent/WO1995012709A1/fr not_active Application Discontinuation
- 1994-10-28 BR BR9407976A patent/BR9407976A/pt not_active Application Discontinuation
- 1994-10-28 AU AU79940/94A patent/AU7994094A/en not_active Abandoned
- 1994-10-28 CA CA002175817A patent/CA2175817A1/fr not_active Abandoned
- 1994-10-28 NZ NZ274852A patent/NZ274852A/en unknown
- 1994-10-28 JP JP7513015A patent/JPH09507096A/ja active Pending
- 1994-10-28 EP EP94931026A patent/EP0726979B1/de not_active Revoked
- 1994-10-31 ZA ZA948562A patent/ZA948562B/xx unknown
- 1994-11-04 MA MA23689A patent/MA23365A1/fr unknown
1996
- 1996-05-03 FI FI961895A patent/FI961895A/fi unknown
- 1996-05-03 NO NO961817A patent/NO961817L/no unknown

Also Published As

Publication number	Publication date
AU7994094A (en)	1995-05-23
DE69410286D1 (de)	1998-06-18
FI961895A0 (fi)	1996-05-03
EP0726979B1 (de)	1998-05-13
JPH09507096A (ja)	1997-07-15
ATE166118T1 (de)	1998-05-15
NZ274852A (en)	1997-04-24
ES2119234T3 (es)	1998-10-01
BR9407976A (pt)	1996-12-03
NO961817D0 (no)	1996-05-03
ZA948562B (en)	1995-06-30
BE1007700A3 (fr)	1995-10-03
NO961817L (no)	1996-05-03
WO1995012709A1 (fr)	1995-05-11
MA23365A1 (fr)	1995-07-01
FI961895A (fi)	1996-05-03
DE69410286T2 (de)	1998-12-10
EP0726979A1 (de)	1996-08-21

Similar Documents

Publication	Publication Date	Title
BE1006057A3 (fr)	1994-05-03	Procede pour la delignification d'une pate a papier chimique.
EP0578304B1 (de)	1996-09-18	Verfahren zum Bleichen eines chemischen Zellstoffs
EP0019963B1 (de)	1982-12-15	Verfahren zur Delignifizierung und zum Bleichen von chemischen und halbchemischen Zellstoffen
BE1007651A3 (fr)	1995-09-05	Procede pour le blanchiment d'une pate a papier chimique.
CA1259454A (fr)	1989-09-19	Procede de blanchiment de pate mecanique par le peroxyde d'hydrogene
FR2467261A1 (fr)	1981-04-17	Blanchiment de matiere lignocellulosique au moyen d'agents de blanchiment contenant du peroxyde
BE1004630A3 (fr)	1992-12-22	Procede pour la preservation des caracteristiques de resistance mecanique des pates a papier chimiques.
BE1004674A3 (fr)	1993-01-12	Procede pour le blanchiment d'une pate a papier chimique et application de ce procede au blanchiment d'une pate kraft.
CA2175817A1 (fr)	1995-05-11	Procede pour le blanchiment d'une pate a papier chimique
BE1006881A3 (fr)	1995-01-17	Procede pour la delignification d'une pate a papier chimique.
EP0535741B1 (de)	1998-07-08	Verfahren zur Verbesserung der Selektivität bei der Delignifizierung von chemischem Zellstoff
BE1007757A3 (fr)	1995-10-17	Procede pour le blanchiment d'une pate a papier chimique.
BE1007272A3 (fr)	1995-05-09	Procede pour le blanchiment d'une pate a papier.
CA1282911C (fr)	1991-04-16	Procede pour la delignification de matieres cellulosiques
EP0190723A1 (de)	1986-08-13	Verfahren zur Verbesserung der mechanischen Eigenschaften einer chemischen oder halbchemischen Papierpulpe aus Bagasse
WO2000068495A1 (fr)	2000-11-16	Procede de blanchiment de pate a papier
BE1010880A3 (fr)	1999-02-02	Procede de fabrication de pate a papier chimique.
CA2079730A1 (fr)	1993-04-05	Procede pour l'amelioration de la selectivite de la delignification d'une pate a papier chimique

Legal Events

Date	Code	Title	Description
2002-10-28	FZDE	Discontinued