BR9406193A - Process for bleaching pulp of cellulosic fiber material without the use of chlorine - Google Patents

Process for bleaching pulp of cellulosic fiber material without the use of chlorine

Info

Publication number: BR9406193A
Authority: BR; Brazil
Prior art keywords: chlorine; fiber material; cellulosic fiber; bleaching pulp; bleaching
Prior art date: 1993-01-29

Application number

BR9406193A

Other languages

Portuguese (pt)

Inventor

Erik Nilsson

Petter Tibbling

Original Assignee

Kvaerner Pulping Tech

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.)

1993-01-29

Filing date

1994-01-26

Publication date

1996-01-09

1994-01-26 Application filed by Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech

1996-01-09 Publication of BR9406193A publication Critical patent/BR9406193A/en

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
- D21C9/16—Bleaching ; Apparatus therefor with per compounds
- D21C9/166—Bleaching ; Apparatus therefor with per compounds with peracids
- 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
- D21C9/1005—Pretreatment of the pulp, e.g. degassing the pulp
- 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)

BR9406193A 1993-01-29 1994-01-26 Process for bleaching pulp of cellulosic fiber material without the use of chlorine BR9406193A (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE9300277A SE501325E (en)	1993-01-29	1993-01-29	Process for chlorine-free bleaching of pulp, wherein the pulp is acidified with acetic acid in the treatment with complexing agents
PCT/SE1994/000054 WO1994017239A1 (en)	1993-01-29	1994-01-26	Method for chlorine-free bleaching of pulp with acetic acid as acidifying agent

Publications (1)

Publication Number	Publication Date
BR9406193A true BR9406193A (en)	1996-01-09

Family

ID=20388704

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR9406193A BR9406193A (en)	1993-01-29	1994-01-26	Process for bleaching pulp of cellulosic fiber material without the use of chlorine

Country Status (10)

Country	Link
EP (1)	EP0681624A1 (en)
JP (1)	JPH08505907A (en)
CN (1)	CN1117301A (en)
AU (1)	AU675291B2 (en)
BR (1)	BR9406193A (en)
CA (1)	CA2154076A1 (en)
FI (1)	FI111387B (en)
NO (1)	NO305763B1 (en)
SE (1)	SE501325E (en)
WO (1)	WO1994017239A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
CN1050642C (en) *	1996-06-25	2000-03-22	华南理工大学	Everyday production 30-150 ton high concentration paper pulp bleaching method by using hydrogen peroxide
CN103726382B (en) *	2013-12-31	2016-08-17	安徽泾县千年古宣宣纸有限公司	A kind of pure straw Chinese art paper and chloride-free bleaching production process thereof
EP3882380B1 (en) *	2020-03-16	2022-04-27	Re:NewCell AB	One stage method for acid metal removal and bleach

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2219505C3 (en) *	1972-04-21	1974-10-17	Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt	Chlorine-free multi-stage bleaching of cellulose
DE2841013C2 (en) *	1978-09-21	1984-06-07	Degussa Ag, 6000 Frankfurt	Process for full bleaching of pulp
ATE97179T1 (en) *	1989-06-06	1993-11-15	Eka Nobel Ab	PROCESS FOR BLEACHING LIGNOCELLULOSE CONTAINING PULP.
SE468355B (en) *	1991-04-30	1992-12-21	Eka Nobel Ab	CHEMISTRY OF CHEMICAL MASS THROUGH TREATMENT WITH COMPLEX PICTURES AND OZONE

1993
- 1993-01-29 SE SE9300277A patent/SE501325E/en not_active IP Right Cessation
1994
- 1994-01-26 CA CA 2154076 patent/CA2154076A1/en not_active Abandoned
- 1994-01-26 JP JP6516930A patent/JPH08505907A/en active Pending
- 1994-01-26 CN CN 94191058 patent/CN1117301A/en active Pending
- 1994-01-26 AU AU59820/94A patent/AU675291B2/en not_active Expired - Fee Related
- 1994-01-26 EP EP94905899A patent/EP0681624A1/en not_active Ceased
- 1994-01-26 BR BR9406193A patent/BR9406193A/en not_active IP Right Cessation
- 1994-01-26 WO PCT/SE1994/000054 patent/WO1994017239A1/en active IP Right Grant
1995
- 1995-07-24 NO NO952935A patent/NO305763B1/en not_active IP Right Cessation
- 1995-07-27 FI FI953589A patent/FI111387B/en active

Also Published As

Publication number	Publication date
CN1117301A (en)	1996-02-21
SE501325E (en)	1999-09-20
NO952935L (en)	1995-09-13
FI953589A (en)	1995-07-27
JPH08505907A (en)	1996-06-25
FI953589A0 (en)	1995-07-27
CA2154076A1 (en)	1994-08-04
SE9300277L (en)	1994-07-30
NO952935D0 (en)	1995-07-24
WO1994017239A1 (en)	1994-08-04
NO305763B1 (en)	1999-07-19
SE9300277D0 (en)	1993-01-29
EP0681624A1 (en)	1995-11-15
SE501325C2 (en)	1995-01-16
AU5982094A (en)	1994-08-15
AU675291B2 (en)	1997-01-30
FI111387B (en)	2003-07-15

Similar Documents

Publication	Publication Date	Title
PT95718A (en)	1991-09-13	PROCESS FOR THE BLEACHING OF CHLORINE FREE OF CELLULOSE PASTES
BR9408596A (en)	1997-08-19	Process for bleaching kraft wood pulp
BR9307351A (en)	1999-06-01	Process for the manufacture of a loaded cellulose based fiber loaded cellulose based fiber and loaded cellulose based product
NO20011767L (en)	2001-06-11	Composites containing cellulose pulp fibers and process for their preparation and use
BR9505506A (en)	1997-10-28	Phosphonomethylated chitosan process for its preparation use process for tanning cellulosic fiber materials bleaching liquor fiber material and cosmetic composition
BR9402374A (en)	1995-03-14	Aqueous composition, process for bleaching fiber materials containing cellulose, bleaching bath, fiber material containing cellulose, compounds and process for their production
BR9404176A (en)	1995-06-27	Process for bleaching a chemical pulp
BR9000983A (en)	1991-02-19	APPARATUS AND PROCESS FOR THE DESIGNIFICATION OF CELLULOSE PULP
FI973649A0 (en)	1997-09-10	Treatment of fibrous material used in the manufacture of cellulose pulp
FI894028A (en)	1990-06-10	Bleaching of pulp with ozone / chlorine mixtures
BR9103446A (en)	1992-09-29	METHOD AND APPLIANCE FOR THE TREATMENT OF FIBROUS MATERIAL WITH A GASEOUS REAGENT, APPLIANCE FOR THE TREATMENT OF FIBROUS MATERIAL WITH A GASEOUS REAGENT AND APPLIANCE FOR DRAINING WOOD PULP WITH A GASEOUS REAGENT
BR9405953A (en)	1995-12-19	Improved ozone / peracid process for the delignification of a lignocellulosic material
BR9006578A (en)	1991-10-01	PULP BLEACHING PROCESS OF FIBER CELLULOSIC MATERIAL
NO964609L (en)	1996-10-31	Process for the preparation of delignified and bleached chemical pulp
BR9405150A (en)	1999-06-15	Process for the preparation of cellulose fibers with reduced tendency to fibrillation
BR9407668A (en)	1997-01-28	Process for bleaching chemical pulp or dissolving wood pulp that has been cooked and device for implementing the process
BR9500843A (en)	1995-10-24	Process to improve the release of pulp
BR9510269A (en)	1997-11-04	Dyeing process of cellulosic textile fiber materials
BR9100592A (en)	1991-10-29	PROCESS FOR THE PRODUCTION OF PULP OF MATERIAL CONTAINING LIGNOCELLULOSIS
BR9005856A (en)	1991-09-24	WOOD PULP WHITENING PROCESS
BR9206860A (en)	1995-11-28	Enzymatic process and preparation for cellulose pulp treatment
BR9406193A (en)	1996-01-09	Process for bleaching pulp of cellulosic fiber material without the use of chlorine
BR9403235A (en)	1995-08-08	Aqueous textile adjuvant and process for its preparation, use and process for wetting, washing and / or bleaching fibrous materials and fibrous material
BR9206366A (en)	1994-11-22	Process for delignifying wood pulp
BR9006579A (en)	1991-10-01	PULP BLEACHING PROCESS OF FIBER CELLULOSIC MATERIAL

Legal Events

Date	Code	Title	Description
2000-11-07	FB36	Technical and formal requirements: requirement - article 36 of industrial property law
2001-02-28	FF	Decision: intention to grant
2001-06-12	FG9A	Patent or certificate of addition granted
2010-09-08	B24C	Patent annual fee: request for for restoration	Free format text: REFERENTE A 10A , 11A , 12A 13A , 14A , 15A E 16A ANUIDADES.
2013-12-10	B24H	Lapse because of non-payment of annual fees (definitively: art 78 iv lpi)	Free format text: EXTINCAO DEFINITIVA - ART. 78 INCISO IV DA LPI
2020-11-24	B24F	Patent annual fee: publication cancelled	Free format text: ANULADA A PUBLICACAO CODIGO 24.8 NA RPI NO 2240 DE 10/12/2013 POR TER SIDO INDEVIDA.
2020-12-08	B21F	Lapse acc. art. 78, item iv - on non-payment of the annual fees in time	Free format text: REFERENTE AS 10A, 11A, 12A, 13A, 14A, 15A E 16A ANUIDADES.
2021-03-23	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 2605 DE 08-12-2020 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.