BR9901291B1 - process for bleaching low consistency chemical pulps. - Google Patents

process for bleaching low consistency chemical pulps.

Info

Publication number: BR9901291B1
Authority: BR; Brazil
Prior art keywords: low consistency; chemical pulps; bleaching; bleaching low; consistency chemical
Prior art date: 1999-04-27

Application number

BR9901291A

Other languages

Portuguese (pt)

Other versions

BR9901291A (en

Inventor

Silvia Maria Pasquall

Araujo Guilherme Antonio Tedeshi De

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.)

1999-04-27

Filing date

1999-04-27

Publication date

2011-11-01

1999-04-27 Application filed filed Critical

1999-04-27 Priority to BR9901291A priority Critical patent/BR9901291B1/en

2000-04-27 Priority to EP00926590.1A priority patent/EP1180172B1/en

2000-04-27 Priority to ES00926590.1T priority patent/ES2501141T3/en

2000-04-27 Priority to PCT/BR2000/000038 priority patent/WO2000065148A1/en

2000-04-27 Priority to CA2372069A priority patent/CA2372069C/en

2000-04-27 Priority to PT926590T priority patent/PT1180172E/en

2000-11-07 Publication of BR9901291A publication Critical patent/BR9901291A/en

2001-10-25 Priority to ZA200108811A priority patent/ZA200108811B/en

2001-10-26 Priority to NO20015241A priority patent/NO331632B1/en

2001-10-26 Priority to IS6132A priority patent/IS6132A/en

2011-11-01 Publication of BR9901291B1 publication Critical patent/BR9901291B1/en

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
- D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
- D21C9/14—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites
- D21C9/144—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with ClO2 or chlorites with ClO2/Cl2 and other bleaching agents in a multistage process
- 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
- D21C9/1057—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)

BR9901291A 1999-04-27 1999-04-27 process for bleaching low consistency chemical pulps. BR9901291B1 (en)

Priority Applications (9)

Application Number	Priority Date	Filing Date	Title
BR9901291A BR9901291B1 (en)	1999-04-27	1999-04-27	process for bleaching low consistency chemical pulps.
EP00926590.1A EP1180172B1 (en)	1999-04-27	2000-04-27	Process for bleaching chemical pulps with low organic halogen compounds content
ES00926590.1T ES2501141T3 (en)	1999-04-27	2000-04-27	Procedure for bleaching chemical pulps with low content of halogenated organic compounds
PCT/BR2000/000038 WO2000065148A1 (en)	1999-04-27	2000-04-27	Process for bleaching chemical pulps with low organic halogen compounds content
CA2372069A CA2372069C (en)	1999-04-27	2000-04-27	Process for bleaching chemical pulps with low organic halogen compounds content
PT926590T PT1180172E (en)	1999-04-27	2000-04-27	Process for bleaching chemical pulps with low organic halogen compounds content
ZA200108811A ZA200108811B (en)	1999-04-27	2001-10-25	Process for bleaching chemical pulps with low organic halogen compounds content.
NO20015241A NO331632B1 (en)	1999-04-27	2001-10-26	Chemical pulp bleaching process
IS6132A IS6132A (en)	1999-04-27	2001-10-26	Method for bleaching low-OX resin bleaches

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
BR9901291A BR9901291B1 (en)	1999-04-27	1999-04-27	process for bleaching low consistency chemical pulps.

Publications (2)

Publication Number	Publication Date
BR9901291A BR9901291A (en)	2000-11-07
BR9901291B1 true BR9901291B1 (en)	2011-11-01

Family

ID=4072226

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9901291A BR9901291B1 (en)	1999-04-27	1999-04-27	process for bleaching low consistency chemical pulps.

Country Status (9)

Country	Link
EP (1)	EP1180172B1 (en)
BR (1)	BR9901291B1 (en)
CA (1)	CA2372069C (en)
ES (1)	ES2501141T3 (en)
IS (1)	IS6132A (en)
NO (1)	NO331632B1 (en)
PT (1)	PT1180172E (en)
WO (1)	WO2000065148A1 (en)
ZA (1)	ZA200108811B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2002099186A1 (en) *	2001-06-06	2002-12-12	Kvaerner Pulping Ab	Reduction of organically bound chlorine formed in chlorine dioxide bleaching

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3720577A (en) *	1970-05-25	1973-03-13	Int Paper Co	Chlorine dioxide-peracetic acid-chlorine dioxide pulp bleaching sequence
SU1141128A1 (en) *	1983-12-08	1985-02-23	Центральный научно-исследовательский институт бумаги	Pulp bleaching process
US4959124A (en)	1989-05-05	1990-09-25	International Paper Company	Method of bleaching kraft pulp in a DZED sequence
DE69026105T2 (en) *	1989-10-19	1996-09-26	Univ North Carolina	HIGH-PERFORMANCE METHOD FOR BLEACHING CELLULAR WITH CHLORDIOXYD
US5030324A (en)	1990-01-29	1991-07-09	Champion International Corporation	Sequential bleaching procedure using chlorine and chlorine dioxide in a first chlorination stage of a multistage bleaching process
SE9000340L (en)	1990-01-31	1991-08-01	Eka Nobel Ab	PROCEDURES FOR BLACKING OF LIGNOCELLULOSALLY MATERIAL

1999
- 1999-04-27 BR BR9901291A patent/BR9901291B1/en not_active IP Right Cessation
2000
- 2000-04-27 WO PCT/BR2000/000038 patent/WO2000065148A1/en not_active Ceased
- 2000-04-27 CA CA2372069A patent/CA2372069C/en not_active Expired - Lifetime
- 2000-04-27 PT PT926590T patent/PT1180172E/en unknown
- 2000-04-27 EP EP00926590.1A patent/EP1180172B1/en not_active Expired - Lifetime
- 2000-04-27 ES ES00926590.1T patent/ES2501141T3/en not_active Expired - Lifetime
2001
- 2001-10-25 ZA ZA200108811A patent/ZA200108811B/en unknown
- 2001-10-26 NO NO20015241A patent/NO331632B1/en not_active IP Right Cessation
- 2001-10-26 IS IS6132A patent/IS6132A/en unknown

Also Published As

Publication number	Publication date
CA2372069C (en)	2011-06-21
NO20015241L (en)	2001-11-27
CA2372069A1 (en)	2000-11-02
EP1180172A1 (en)	2002-02-20
IS6132A (en)	2001-10-26
EP1180172B1 (en)	2014-07-02
ZA200108811B (en)	2002-10-25
ES2501141T3 (en)	2014-10-01
BR9901291A (en)	2000-11-07
NO331632B1 (en)	2012-02-13
PT1180172E (en)	2014-09-25
WO2000065148A1 (en)	2000-11-02
NO20015241D0 (en)	2001-10-26

Publication	Publication Date	Title
BR0112906B1 (en)	2012-03-20	"papermaking process".
BR0008301B1 (en)	2013-01-22	process for the manufacture of compounds, and compounds.
BR9909395B1 (en)	2009-01-13	aqueous detergent composition, and process for preparing it.
BR9915708B1 (en)	2010-07-13	process for preparing monoaryloxy metallocenes.
BR9813857B1 (en)	2013-11-12	PROCESS FOR PREPARING A WATER DISINFECTANT AND WATER DISINFECTANT.
BR9914536B1 (en)	2008-11-18	not perforated tissue, process for its production, and said use.
BR0008181B1 (en)	2013-06-04	chlorine preparation process.
BR9915192B1 (en)	2009-01-13	bleach detergent composition.
BR9908753B1 (en)	2010-07-13	integrated hydroconversion process.
BR0211930B1 (en)	2013-06-11	process for treating papermaking fibers.
MA25306A1 (en)	2001-12-31	BLEACHING COMPOSITIONS.
FI991220A0 (en)	1999-05-28	Process for treating pulp
DE19781630T1 (en)	1999-04-29	Papermaking process
EP1304337A4 (en)	2004-07-07	CELLULOSE FORMATION PROCESS
BR9917475B1 (en)	2013-07-23	process for the manufacture of compounds, and process modification.
BR0013146B1 (en)	2011-01-25	process for adrenaline production.
BR0012217B1 (en)	2011-02-22	cooking process for pulp.
PT1240306E (en)	2004-08-31	PROCESS FOR WATER STABILIZATION
BR9902548B1 (en)	2009-01-13	process for obtaining a polyester.
BR0009920B1 (en)	2011-05-17	process for alkaline solution caustics.
PT1203000E (en)	2003-09-30	PROCESS FOR PRODUCING PHOSPHONOMETILGLYCIN
BR9901291B1 (en)	2011-11-01	process for bleaching low consistency chemical pulps.
BR9917609B1 (en)	2009-01-13	process for manufacturing polyether.
FI20011738L (en)	2001-08-31	Feed pretreatment for chemical pulping
FI19992167A7 (en)	2000-04-10	Pulp making process

Legal Events

Date	Code	Title	Description
2007-10-30	B07A	Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
2009-01-13	B09B	Patent application refused [chapter 9.2 patent gazette]	Free format text: INDEFIRO POR NAO ATENDER O REQUISITO DE PATENTEABILIDADE, ATIVIDADE INVENTIVA, CONFORME OS ARTIGOS 8O E 13O DA LEI DE PROPRIEDADE INDUSTRIAL.
2010-05-25	B12B	Appeal against refusal [chapter 12.2 patent gazette]
2011-10-25	B25A	Requested transfer of rights approved	Free format text: TRANSFERIDO POR INCORPORACAO DE: ARACRUZ CELULOSE S.A.
2011-11-01	B16A	Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]	Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 01/11/2011, OBSERVADAS AS CONDICOES LEGAIS.
2021-11-30	B21A	Patent or certificate of addition expired [chapter 21.1 patent gazette]	Free format text: PATENTE EXTINTA EM 01.11.2021