PT92393A - Procede de blanchement de pates desencrees - Google Patents

Procede de blanchement de pates desencrees

Info

Publication number: PT92393A
Authority: PT; Portugal
Prior art keywords: desencrees; blanchement; procede; pates; pates desencrees
Prior art date: 1988-11-24

Application number

PT9239389A

Other languages

English (en)

Other versions

PT92393B (pt

Inventor

Lucien Bourson

Michel Devic

Original Assignee

Atochem

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.)

1988-11-24

Filing date

1989-11-23

Publication date

1990-05-31

1989-11-23 Application filed by Atochem filed Critical Atochem

1990-05-31 Publication of PT92393A publication Critical patent/PT92393A/pt

1995-09-12 Publication of PT92393B publication Critical patent/PT92393B/pt

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
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/025—De-inking
- 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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling

Landscapes

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

PT92393A 1988-11-24 1989-11-23 Processo para o bramqueamento de pastas de papel usado de que se eliminou a tinta PT92393B (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR8815637A FR2639371B1 (fr)	1988-11-24	1988-11-24	Procede de blanchiment de pates desencrees

Publications (2)

Publication Number	Publication Date
PT92393A true PT92393A (pt)	1990-05-31
PT92393B PT92393B (pt)	1995-09-12

Family

ID=9372408

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT92393A PT92393B (pt)	1988-11-24	1989-11-23	Processo para o bramqueamento de pastas de papel usado de que se eliminou a tinta

Country Status (9)

Country	Link
US (1)	US5449436A (pt)
EP (1)	EP0374057B1 (pt)
JP (1)	JP2516437B2 (pt)
AT (1)	ATE100509T1 (pt)
CA (1)	CA2003587C (pt)
DE (2)	DE374057T1 (pt)
ES (1)	ES2015838T3 (pt)
FR (1)	FR2639371B1 (pt)
PT (1)	PT92393B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB9208266D0 (en) *	1992-04-15	1992-06-03	Morton Int Inc	Method of bleaching de-inked pulp
GB9212926D0 (en) *	1992-06-18	1992-07-29	Morton Int Inc	Method of bleaching paper pulp
GB9214041D0 (en) *	1992-07-02	1992-08-12	Morton Int Inc	Process for de-inking recycled paper pulp
US5464501A (en) *	1993-04-06	1995-11-07	Societe Anonyme Pour L'etude Et L'exploitation L'air Liquide, Des Procedes Georges Claude	Bleaching recycled pulp with a reductive-oxidative sequence
SE501309C2 (sv) *	1993-05-28	1995-01-09	Klippans Finpappersbruk Ab	Massaframställning genom uppslutning av en blandning av cellulosabaserat returmaterial och råträ
US5882476A (en) *	1995-05-05	1999-03-16	Solvay Minerals, Inc.	Deinking printed wastepaper using alkaline solution containing sodium sulfite and sodium carbonate
US6325892B1 (en)	1998-09-23	2001-12-04	University Of New Brunswick	Method of delignifying sulphite pulp with oxygen and borohydride
EP1418269B1 (en) *	2002-11-05	2009-02-11	Rohm And Haas Company	Method for brightening virgin mechanical pulp
US20040211533A1 (en) *	2003-04-28	2004-10-28	Qiang Huang	Method for bleaching and color stripping recycled fibers
CN100338295C (zh) *	2005-11-03	2007-09-19	苏州大学	大豆蛋白纤维漂白组合物及其漂白方法
US9932709B2 (en) *	2013-03-15	2018-04-03	Ecolab Usa Inc.	Processes and compositions for brightness improvement in paper production
FR2980491B1 (fr)	2011-09-27	2014-12-26	Oberthur Technologies	Procede de traitement de surface d'un document de securite
CN113802403B (zh) *	2021-08-13	2022-07-26	湖北金汉江精制棉有限公司	一种高聚合度精制棉生产工艺

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI43525B (pt) *	1963-03-07	1970-12-31	Fmc Corp
DE1546250A1 (de) *	1964-10-17	1970-08-13	Feldmuehle Ag	Verfahren zum Bleichen von Holzschliff
US3384534A (en) *	1964-12-16	1968-05-21	Fmc Corp	Bleaching of wood pulps with thiourea dioxide
US3981765A (en) *	1969-07-30	1976-09-21	Vita Mayer & C.	Treatment of wood chips with an alkali metal borohydride solution followed by mechanical defibration
DE2105324A1 (en) *	1969-07-30	1972-08-10	Vita Mayer & C gia F Ih Vita SAS, Mailand (Italien)	Production of papermaking pulps
JPS4838328A (pt) *	1971-09-17	1973-06-06
US3985674A (en) *	1974-12-10	1976-10-12	Virginia Chemicals Inc.	Stabilized sodium dithionite solutions
EP0191756B1 (en) *	1985-02-15	1989-01-04	Kamyr Ab	Multi peroxide stage mechanical pulp bleaching
FR2604197B1 (fr) *	1986-09-23	1988-11-18	Atochem	Procede de blanchiment de matieres lignocellulosiques.
FR2659363B1 (fr) *	1990-03-07	1996-04-19	Atochem	Procede de preparation de pates a haut rendement blanchies.

1988
- 1988-11-24 FR FR8815637A patent/FR2639371B1/fr not_active Expired - Fee Related
1989
- 1989-11-21 DE DE198989420456T patent/DE374057T1/de active Pending
- 1989-11-21 AT AT89420456T patent/ATE100509T1/de not_active IP Right Cessation
- 1989-11-21 DE DE68912543T patent/DE68912543T2/de not_active Expired - Fee Related
- 1989-11-21 EP EP19890420456 patent/EP0374057B1/fr not_active Expired - Lifetime
- 1989-11-21 ES ES89420456T patent/ES2015838T3/es not_active Expired - Lifetime
- 1989-11-22 CA CA 2003587 patent/CA2003587C/fr not_active Expired - Fee Related
- 1989-11-23 PT PT92393A patent/PT92393B/pt not_active IP Right Cessation
- 1989-11-24 JP JP30638289A patent/JP2516437B2/ja not_active Expired - Lifetime
1993
- 1993-03-01 US US08/026,215 patent/US5449436A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FR2639371B1 (fr)	1995-04-14
DE68912543T2 (de)	1994-06-30
ATE100509T1 (de)	1994-02-15
JP2516437B2 (ja)	1996-07-24
ES2015838A4 (es)	1990-09-16
EP0374057A3 (fr)	1991-07-10
JPH02182985A (ja)	1990-07-17
DE374057T1 (de)	1990-12-20
CA2003587C (fr)	1999-09-28
US5449436A (en)	1995-09-12
EP0374057B1 (fr)	1994-01-19
FR2639371A1 (fr)	1990-05-25
ES2015838T3 (es)	1994-03-16
EP0374057A2 (fr)	1990-06-20
DE68912543D1 (de)	1994-03-03
PT92393B (pt)	1995-09-12
CA2003587A1 (fr)	1990-05-24

Legal Events

Date

Code

Title

Description

1995-09-12

FG3A

Patent granted, date of granting

Effective date: 19950504

2003-02-28

MM3A

Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 20021130

Publication	Publication Date	Title
FR2640763B1 (fr)	1995-06-02	Procede de prospection electrosismique
DE69030908D1 (de)	1997-07-17	Akustisch-digitales System
NO891204D0 (no)	1989-03-20	Premestrings-system.
NO894666L (no)	1990-01-23	Elektroakustisk system.
DE3687397D1 (de)	1993-02-11	2-fluorarabinofuranosylpurinnukleoside.
NO176897C (no)	1995-06-14	System for område-begrensning
NO914402D0 (no)	1991-11-11	Roer-haandteringssystem
FI901794A7 (fi)	1990-10-13	Siirtojärjestelmä
NO179628C (no)	1996-11-13	Fölgingssystem
DE58902718D1 (de)	1992-12-17	Prozessanlage.
NO176074C (no)	1995-01-25	Radarsystem
FI901125A0 (fi)	1990-03-06	Smakgivande system foer fettfria livsmedel.
DE68928774D1 (de)	1998-09-17	Kamarasystem
KR890012092A (ko)	1989-08-24	유압 장치
FR2635550B1 (fr)	1991-04-26	Procede de surelevation d'immeubles
FR2607044B1 (fr)	1989-04-28	Procede de soudage par friction
FI900011A0 (fi)	1990-01-02	Kolmoisvetoakselijärjestelmä
FI901753A7 (fi)	1990-04-06	Lääkeaineita
FI861847A7 (fi)	1986-11-04	Dihydropyridin-kalciumantagonister.
MA22366A1 (fr)	1992-07-01	Procede de desalcoolisation
FI893407L (fi)	1990-01-19	Duk foer anvaendning i pappersmaskiner.
DK593889A (da)	1989-11-24	Elektroakustisk system
DE58906690D1 (de)	1994-02-24	Übergabesystem.
FI901754A7 (fi)	1990-04-06	Lääkeaineita
NO178449C (no)	1996-03-27	Antennesystem