BR9406763A - Processo de tratamento de polpa de papel quimica - Google Patents

Processo de tratamento de polpa de papel quimica

Info

Publication number: BR9406763A
Authority: BR; Brazil
Prior art keywords: pulp; treating; paper pulp; treatment process; chemical paper
Prior art date: 1993-06-08

Application number

BR9406763A

Other languages

English (en)

Inventor

Anders Bnergqvist

Lars Ove Larsson

Erik Nilsson

Petter Tibbling

Original Assignee

Kvaemer Pulping Technologies A

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.)

1993-06-08

Filing date

1994-05-18

Publication date

1996-03-05

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20390220&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9406763(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-05-18 Application filed by Kvaemer Pulping Technologies A filed Critical Kvaemer Pulping Technologies A

1996-03-05 Publication of BR9406763A publication Critical patent/BR9406763A/pt

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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides
- 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
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone

Landscapes

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

BR9406763A 1993-06-08 1994-05-18 Processo de tratamento de polpa de papel quimica BR9406763A (pt)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE9301984A SE501253C2 (sv)	1993-06-08	1993-06-08	Klorfri blekning av kemisk pappersmassa
PCT/SE1994/000462 WO1994029512A1 (en)	1993-06-08	1994-05-18	Method of bleaching pulp without using chlorine chemicals

Publications (1)

Publication Number	Publication Date
BR9406763A true BR9406763A (pt)	1996-03-05

Family

ID=20390220

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9406763A BR9406763A (pt)	1993-06-08	1994-05-18	Processo de tratamento de polpa de papel quimica

Country Status (9)

Country	Link
US (1)	US6325891B1 (pt)
EP (1)	EP0702735B1 (pt)
AT (1)	ATE183264T1 (pt)
AU (1)	AU6986294A (pt)
BR (1)	BR9406763A (pt)
CA (1)	CA2163116C (pt)
DE (1)	DE69420035T2 (pt)
SE (1)	SE501253C2 (pt)
WO (1)	WO1994029512A1 (pt)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO1996025552A1 (en)	1995-02-17	1996-08-22	Ahlstrom Machinery Oy	Method of pretreating pulp to be bleached with peroxide
US5672247A (en) *	1995-03-03	1997-09-30	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
US5736004A (en) *	1995-03-03	1998-04-07	Union Camp Patent Holding, Inc.	Control scheme for rapid pulp delignification and bleaching
SE514947C2 (sv) *	1998-09-09	2001-05-21	Valmet Fibertech Ab	Blekning av massa med ozon innefattande oxalsyratillsats
FR2910027B1 (fr) *	2006-12-13	2009-11-06	Itt Mfg Enterprises Inc	Procede de blanchiment des pates papeteries chimiques par traitement final a l'ozone a haute temperature

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
NO144711C (no) *	1978-04-04	1981-10-21	Myrens Verksted As	Fremgangsmaate til bleking av oksygendelignifiserte celluloseholdige masser med ozon
DE69004492T3 (de) *	1989-06-06	2001-11-15	Eka Nobel Ab, Bohus	Verfahren zum Bleichen von Lignocellulose enthaltenden Zellstoffen.
AU636173B2 (en) *	1989-10-30	1993-04-22	Lenzing Aktiengesellschaft	Method for the chlorine-free bleaching of pulps
SE469842C (sv) *	1992-01-21	1996-01-15	Sunds Defibrator Ind Ab	Blekning av kemisk massa med peroxid
SE469387B (sv) *	1992-05-11	1993-06-28	Kamyr Ab	Saett vid blekning av massa utan anvaendning av klorkemikalier
US5401362A (en) *	1993-03-24	1995-03-28	Kamyr, Inc.	Control of metals and dissolved organics in the bleach plant

1993
- 1993-06-08 SE SE9301984A patent/SE501253C2/sv unknown
1994
- 1994-05-18 WO PCT/SE1994/000462 patent/WO1994029512A1/en not_active Ceased
- 1994-05-18 CA CA002163116A patent/CA2163116C/en not_active Expired - Fee Related
- 1994-05-18 AU AU69862/94A patent/AU6986294A/en not_active Abandoned
- 1994-05-18 US US08/553,324 patent/US6325891B1/en not_active Expired - Lifetime
- 1994-05-18 DE DE69420035T patent/DE69420035T2/de not_active Expired - Fee Related
- 1994-05-18 AT AT94918626T patent/ATE183264T1/de not_active IP Right Cessation
- 1994-05-18 EP EP94918626A patent/EP0702735B1/en not_active Expired - Lifetime
- 1994-05-18 BR BR9406763A patent/BR9406763A/pt not_active IP Right Cessation

Also Published As

Publication number	Publication date
SE9301984L (sv)	1994-12-09
AU6986294A (en)	1995-01-03
EP0702735B1 (en)	1999-08-11
SE9301984D0 (sv)	1993-06-08
SE501253E8 (sv)	1994-12-19
CA2163116C (en)	2003-12-30
SE501253C2 (sv)	1994-12-19
EP0702735A1 (en)	1996-03-27
CA2163116A1 (en)	1994-12-22
DE69420035D1 (de)	1999-09-16
DE69420035T2 (de)	2000-03-23
WO1994029512A1 (en)	1994-12-22
ATE183264T1 (de)	1999-08-15
US6325891B1 (en)	2001-12-04

Publication	Publication Date	Title
SE7902901L (sv)	1979-10-05	Sett for blekning av oxygendelignifierad, cellulosahaltig massa med ozon
BR9007608A (pt)	1992-08-25	Processo para tratamento de polpa quimica lignocelulosica
ATE48290T1 (de)	1989-12-15	Verfahren zur delignifizierung und bleiche von zellstoffen.
CA2137451A1 (en)	1994-10-13	Bleaching recycled pulp with a reductive-oxidative sequence
BR9406763A (pt)	1996-03-05	Processo de tratamento de polpa de papel quimica
DE69111098D1 (de)	1995-08-17	Verfahren zur Herstellung von gebleichtem Zellstoff mit hoher Ausbeute.
ES2073880T3 (es)	1995-08-16	Procedimiento de blanqueo de materias vegetales en dos etapas.
CA2137450A1 (en)	1994-10-13	Bleaching recycled pulp with ozone and hydrogen peroxide
ATE151824T1 (de)	1997-05-15	Aufschlussverfahren
AU565124B2 (en)	1987-09-03	Hypochlorite treatment of chemical paper pulps
BR9508653A (pt)	1997-11-11	Processo de alvejar polpa quimica em diversas etapas
SE9604094L (sv)	1998-05-09	Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar
SE9401628L (sv)	1995-11-11	Förfarande vid syrgasdelignifiering
SE9501623L (sv)	1996-11-03	Blekning av massa
SE9502365L (sv)	1996-12-30	Blekning av lignocellulosahaltigt fibermaterial
SE9400738L (sv)	1995-09-05	Förfarande vid ozonblekning av sulfitmassa
BR9606587A (pt)	1998-06-09	Processo para tratamento de um líquido de processo aquoso do processo de aminóxido
BR9408027A (pt)	1996-12-17	Processo para o branqueamento de uma pasta de papel quimica
SE9303551L (sv)	1995-04-29	Sätt att behandla kemisk pappersmassa utan användning av klorhaltiga kemikalier

Legal Events

Date	Code	Title	Description
2002-04-09	FF	Decision: intention to grant
2002-09-03	FG9A	Patent or certificate of addition granted
2005-05-31	B25D	Requested change of name of applicant approved
2010-08-03	B24C	Patent annual fee: request for for restoration	Free format text: REFERENTE A 15A E 16A ANUIDADE(S).
2014-08-26	B24H	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)
2020-12-08	B24F	Patent annual fee: publication cancelled	Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2277 DE 26/08/2014 POR TER SIDO INDEVIDA.
2020-12-22	B21F	Lapse acc. art. 78, item iv - on non-payment of the annual fees in time	Free format text: REFERENTE AS 15A E 16A ANUIDADES.
2021-04-13	B24J	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)	Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2607 DE 22-12-2020 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.