ES2119234T3 - Procedimiento para el blanqueo de una pasta papelera quimica. - Google Patents

Procedimiento para el blanqueo de una pasta papelera quimica.

Info

Publication number: ES2119234T3
Authority: ES; Spain
Prior art keywords: procedure; whitening; chemical paper; paper mill; stage
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.): Expired - Lifetime

Application number

ES94931026T

Other languages

English (en)

Spanish (es)

Inventor

Francois Desprez

Nicholas A Troughton

Johan Devenyns

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 INTEROX

Solvay Chimie SA

Original Assignee

SOLVAY INTEROX

Solvay Interox SA

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

1998-10-01

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=3887524&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2119234(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-10-28 Application filed by SOLVAY INTEROX, Solvay Interox SA filed Critical SOLVAY INTEROX

1998-10-01 Application granted granted Critical

1998-10-01 Publication of ES2119234T3 publication Critical patent/ES2119234T3/es

2014-10-28 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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)

ES94931026T 1993-11-04 1994-10-28 Procedimiento para el blanqueo de una pasta papelera quimica. Expired - Lifetime ES2119234T3 (es)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BE9301215A BE1007700A3 (fr)	1993-11-04	1993-11-04	Procede pour le blanchiment d'une pate a papier chimique.

Publications (1)

Publication Number	Publication Date
ES2119234T3 true ES2119234T3 (es)	1998-10-01

Family

ID=3887524

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
ES94931026T Expired - Lifetime ES2119234T3 (es)	1993-11-04	1994-10-28	Procedimiento para el blanqueo de una pasta papelera quimica.

Country Status (15)

Country	Link
EP (1)	EP0726979B1 (no)
JP (1)	JPH09507096A (no)
AT (1)	ATE166118T1 (no)
AU (1)	AU7994094A (no)
BE (1)	BE1007700A3 (no)
BR (1)	BR9407976A (no)
CA (1)	CA2175817A1 (no)
DE (1)	DE69410286T2 (no)
ES (1)	ES2119234T3 (no)
FI (1)	FI961895A0 (no)
MA (1)	MA23365A1 (no)
NO (1)	NO961817D0 (no)
NZ (1)	NZ274852A (no)
WO (1)	WO1995012709A1 (no)
ZA (1)	ZA948562B (no)

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
ATE97179T1 (de) *	1989-06-06	1993-11-15	Eka Nobel Ab	Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
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 DE DE69410286T patent/DE69410286T2/de not_active Revoked
- 1994-10-28 AU AU79940/94A patent/AU7994094A/en not_active Abandoned
- 1994-10-28 JP JP7513015A patent/JPH09507096A/ja active Pending
- 1994-10-28 CA CA002175817A patent/CA2175817A1/fr not_active Abandoned
- 1994-10-28 ES ES94931026T patent/ES2119234T3/es not_active Expired - Lifetime
- 1994-10-28 BR BR9407976A patent/BR9407976A/pt not_active Application Discontinuation
- 1994-10-28 FI FI961895A patent/FI961895A0/fi unknown
- 1994-10-28 EP EP94931026A patent/EP0726979B1/fr not_active Revoked
- 1994-10-28 WO PCT/EP1994/003591 patent/WO1995012709A1/fr not_active Ceased
- 1994-10-28 AT AT94931026T patent/ATE166118T1/de not_active IP Right Cessation
- 1994-10-28 NZ NZ274852A patent/NZ274852A/en unknown
- 1994-10-31 ZA ZA948562A patent/ZA948562B/xx unknown
- 1994-11-04 MA MA23689A patent/MA23365A1/fr unknown
1996
- 1996-05-03 NO NO961817A patent/NO961817D0/no unknown

Also Published As

Publication number	Publication date
BR9407976A (pt)	1996-12-03
ATE166118T1 (de)	1998-05-15
FI961895A7 (fi)	1996-05-03
NO961817L (no)	1996-05-03
ZA948562B (en)	1995-06-30
CA2175817A1 (fr)	1995-05-11
FI961895L (fi)	1996-05-03
AU7994094A (en)	1995-05-23
NO961817D0 (no)	1996-05-03
EP0726979B1 (fr)	1998-05-13
NZ274852A (en)	1997-04-24
MA23365A1 (fr)	1995-07-01
FI961895A0 (fi)	1996-05-03
EP0726979A1 (fr)	1996-08-21
BE1007700A3 (fr)	1995-10-03
JPH09507096A (ja)	1997-07-15
WO1995012709A1 (fr)	1995-05-11
DE69410286D1 (de)	1998-06-18
DE69410286T2 (de)	1998-12-10

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SE9603630L (sv)	1998-04-05	Blekning av pappersmassa varvid en avskild vätskefas oxideras för inaktivering av komplexbundna metalljoner

Legal Events

Date

Code

Title

Description

1998-10-01

FG2A

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