BR9006578A - PULP BLEACHING PROCESS OF FIBER CELLULOSIC MATERIAL - Google Patents

PULP BLEACHING PROCESS OF FIBER CELLULOSIC MATERIAL

Info

Publication number: BR9006578A
Authority: BR; Brazil
Prior art keywords: cellulosic material; bleaching process; pulp bleaching; fiber cellulosic; fiber
Prior art date: 1989-12-29

Application number

BR909006578A

Other languages

Portuguese (pt)

Inventor

Charlotte Bosenius

Erik Nilsson

Petter Tibbling

Original Assignee

Kamyr Ab

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.)

1989-12-29

Filing date

1990-12-26

Publication date

1991-10-01

1990-12-26 Application filed by Kamyr Ab filed Critical Kamyr Ab

1991-10-01 Publication of BR9006578A publication Critical patent/BR9006578A/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
- D21C9/147—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications
- D21C9/153—Bleaching ; Apparatus therefor with oxygen or its allotropic modifications with ozone
- 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

Landscapes

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

BR909006578A 1989-12-29 1990-12-26 PULP BLEACHING PROCESS OF FIBER CELLULOSIC MATERIAL BR9006578A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE8904403A SE467260B (en)	1989-12-29	1989-12-29	WHITING CELLULOSAMASSA WITH CHLORIDE Dioxide AND OZONE IN ONE AND SAME STEP

Publications (1)

Publication Number	Publication Date
BR9006578A true BR9006578A (en)	1991-10-01

Family

ID=20377904

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
BR909006578A BR9006578A (en)	1989-12-29	1990-12-26	PULP BLEACHING PROCESS OF FIBER CELLULOSIC MATERIAL

Country Status (9)

Country	Link
JP (1)	JPH04289288A (en)
AT (1)	AT396129B (en)
BR (1)	BR9006578A (en)
CA (1)	CA2031848C (en)
DE (1)	DE4039099C2 (en)
FI (1)	FI95291C (en)
FR (1)	FR2656634B1 (en)
NO (1)	NO176061C (en)
SE (1)	SE467260B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5322598A (en) *	1990-02-06	1994-06-21	Olin Corporation	Chlorine dioxide generation using inert load of sodium perchlorate
FI925558A7 (en)	1992-04-22	1993-10-23	Andritz Oy	Method and apparatus for bleaching pulp
US5387317A (en) *	1993-01-28	1995-02-07	The Mead Corporation	Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
CA2220408A1 (en)	1995-08-10	1997-02-20	Hiroaki Maeda	Method of bleaching cellulose pulp
FR2743094B1 (en) *	1995-12-27	1998-02-13	Centre Tech Ind Papier	PROCESS FOR BLEACHING CHEMICAL PULP
ID23571A (en) *	1997-08-25	2000-05-04	Praxair Technology Inc	METHOD OF OZONE APPLICATION IN ECF BLEACHING
US6174409B1 (en)	1997-09-19	2001-01-16	American Air Liquide Inc.	Method to improve final bleached pulp strength properties by adjusting the CI02:03 ration within a single (D/Z) stage of the bleaching process
WO2000008251A1 (en) *	1998-07-31	2000-02-17	Asia Pulp & Paper Co. Ltd.	An improved method for bleaching pulp
JP2002069879A (en) *	2000-09-04	2002-03-08	Nippon Paper Industries Co Ltd	Method for bleaching pulp of cellulosic fiber material
SE532470C2 (en) *	2008-05-13	2010-02-02	Metso Paper Inc	Final bleaching of oxygen delignified pulp with ozone, chlorine dioxide and peroxide
JP5987223B2 (en) *	2012-03-06	2016-09-07	愛媛県	Method for producing cellulose solution, method for producing cellulose, method for saccharification of cellulose
CN111979823A (en) *	2020-08-07	2020-11-24	齐鲁工业大学	Sulfate wood pulp short-process ECF bleaching process X/D-Z-P (X/Z-D-P)
CN111979818A (en) *	2020-08-07	2020-11-24	齐鲁工业大学	Sulfate wood pulp short-procedure ECF bleaching process X/Z/D-EOP-D or X/D/Z-EOP-D

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE1298875B (en) *	1965-01-09	1969-07-03	Gunnar Alexander Dipl Ing	Process for bleaching cellulose in a chlorine bleach bath and with ozone
US4080249A (en) *	1976-06-02	1978-03-21	International Paper Company	Delignification and bleaching of a lignocellulosic pulp slurry with ozone
US4902381A (en) *	1988-12-09	1990-02-20	Kamyr, Inc.	Method of bleaching pulp with ozone-chlorine mixtures
US4959124A (en) *	1989-05-05	1990-09-25	International Paper Company	Method of bleaching kraft pulp in a DZED sequence
FI89516B (en) *	1989-05-10	1993-06-30	Ahlstroem Oy	Foerfarande Foer blekning av cellulosamassa med Otson

1989
- 1989-12-29 SE SE8904403A patent/SE467260B/en unknown
1990
- 1990-12-07 DE DE4039099A patent/DE4039099C2/en not_active Expired - Fee Related
- 1990-12-10 CA CA002031848A patent/CA2031848C/en not_active Expired - Lifetime
- 1990-12-12 AT AT0251990A patent/AT396129B/en not_active IP Right Cessation
- 1990-12-26 BR BR909006578A patent/BR9006578A/en not_active IP Right Cessation
- 1990-12-27 NO NO905599A patent/NO176061C/en not_active IP Right Cessation
- 1990-12-27 FI FI906400A patent/FI95291C/en active IP Right Grant
- 1990-12-28 FR FR9016500A patent/FR2656634B1/en not_active Expired - Fee Related
- 1990-12-28 JP JP2415577A patent/JPH04289288A/en active Pending

Also Published As

Publication number	Publication date
CA2031848A1 (en)	1991-06-30
ATA251990A (en)	1992-10-15
JPH04289288A (en)	1992-10-14
NO905599L (en)	1991-07-01
SE8904403D0 (en)	1989-12-29
SE8904403L (en)	1991-06-30
FI906400L (en)	1991-06-30
FI95291C (en)	1996-01-10
AT396129B (en)	1993-06-25
DE4039099A1 (en)	1991-07-04
DE4039099C2 (en)	1994-01-27
FI95291B (en)	1995-09-29
FR2656634A1 (en)	1991-07-05
NO176061B (en)	1994-10-17
CA2031848C (en)	1995-11-21
NO176061C (en)	1995-01-25
SE467260B (en)	1992-06-22
NO905599D0 (en)	1990-12-27
FR2656634B1 (en)	1996-07-26
FI906400A0 (en)	1990-12-27

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Legal Events

Date	Code	Title	Description
1998-12-15	FB36	Technical and formal requirements: requirement - article 36 of industrial property law
1999-10-13	FF	Decision: intention to grant
2000-04-18	FG9A	Patent or certificate of addition granted
2010-02-02	B25F	Entry of change of name and/or headquarter and transfer of application, patent and certif. of addition of invention: change of name on requirement	Owner name: KAMYR AKTIEBOLAG (SE) Free format text: A FIM DE ATENDER A ALTERACAO DE NOME SOLICITADA NA PETICAO NO 020070110412/RJ DE 09/08/2007, QUEIRA O INTERESSADO APRESENTAR AS OUTRAS DUAS GUIAS DE PAGAMENTO DAS ALTERACOES QUE ANTECEDEM O ULTIMO NOME DA EMPRESA, DE ACORDO COM A DOCUMENTACAO APRESENTADA, PARA QUE SE PUBLIQUE CADA REGISTRO DE ALTERACAO DOCUMENTADA.
2010-12-21	B25D	Requested change of name of applicant approved	Owner name: KVAERNER PULPING TECHNOLOGIES AB (SE) Free format text: ALTERADO DE: KAMYR AKTIEBOLAG
2011-01-04	B25D	Requested change of name of applicant approved	Owner name: KVAERNER PULPING AB (SE) Free format text: ALTERADO DE: KVAERNER PULPING TECHNOLOGIES AB
2011-01-18	B25D	Requested change of name of applicant approved	Owner name: METSO FIBER KARLSTAD AB (SE) Free format text: ALTERADO DE: KVAERNER PULPING AB
2013-05-28	B21A	Patent or certificate of addition expired [chapter 21.1 patent gazette]	Free format text: PATENTE EXTINTA EM 26/12/2010