ATA251990A - METHOD FOR BLEACHING CELLULOSE MASH - Google Patents

METHOD FOR BLEACHING CELLULOSE MASH

Info

Publication number: ATA251990A
Authority: AT; Austria
Prior art keywords: bleaching cellulose; mash; cellulose mash; bleaching; cellulose
Prior art date: 1989-12-29

Application number

AT0251990A

Other languages

German (de)

Other versions

AT396129B (en

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

1990-12-12

Publication date

1992-10-15

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

1992-10-15 Publication of ATA251990A publication Critical patent/ATA251990A/en

1993-06-25 Application granted granted Critical

1993-06-25 Publication of AT396129B publication Critical patent/AT396129B/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)

AT0251990A 1989-12-29 1990-12-12 METHOD FOR BLEACHING CELLULOSE MASH AT396129B (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 (2)

Publication Number	Publication Date
ATA251990A true ATA251990A (en)	1992-10-15
AT396129B AT396129B (en)	1993-06-25

Family

ID=20377904

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT0251990A AT396129B (en)	1989-12-29	1990-12-12	METHOD FOR BLEACHING CELLULOSE MASH

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
FI925558L (en)	1992-04-22	1993-10-23	Ahlstroem Oy	FOERFARANDE OCH ANORDNING FOER BLEKNING AV MASS
US5387317A (en) *	1993-01-28	1995-02-07	The Mead Corporation	Oxygen/ozone/peracetic aicd delignification and bleaching of cellulosic pulps
US6248209B1 (en)	1995-08-10	2001-06-19	Sanyo Chemical Industries, Ltd.	Process for bleaching cellulose pulp with a bleaching assistant having the formula R1-O-{[(C2H4O)m/(AO)n}]-H
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
AU8642698A (en) *	1998-07-31	2000-02-28	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
SE8904403L (en)	1991-06-30
BR9006578A (en)	1991-10-01
FI95291B (en)	1995-09-29
NO176061C (en)	1995-01-25
NO176061B (en)	1994-10-17
AT396129B (en)	1993-06-25
DE4039099A1 (en)	1991-07-04
FI906400A0 (en)	1990-12-27
NO905599D0 (en)	1990-12-27
CA2031848C (en)	1995-11-21
FR2656634B1 (en)	1996-07-26
FR2656634A1 (en)	1991-07-05
FI906400L (en)	1991-06-30
DE4039099C2 (en)	1994-01-27
CA2031848A1 (en)	1991-06-30
FI95291C (en)	1996-01-10
NO905599L (en)	1991-07-01
SE8904403D0 (en)	1989-12-29
SE467260B (en)	1992-06-22
JPH04289288A (en)	1992-10-14

Publication	Publication Date	Title
DE59005677D1 (en)	1994-06-16	Process for chlorine-free bleaching of cellulose.
AT372412B (en)	1983-10-10	METHOD FOR DISSOLVING CELLULOSE
ATA271789A (en)	1992-01-15	METHOD FOR CONTINUOUSLY UNLOCKING CELLULOSE FIBER MATERIAL
DE3887812D1 (en)	1994-03-24	Process for removing pyrogens.
AT375693B (en)	1984-08-27	METHOD FOR DELIGNIFYING CELLULOSE CELL
DE3771670D1 (en)	1991-08-29	METHOD FOR SLIMING TRIGLYCERIDOILS.
ATA251990A (en)	1992-10-15	METHOD FOR BLEACHING CELLULOSE MASH
FI890700L (en)	1990-08-15	Method for bleaching cellulose pulp
DE69315163D1 (en)	1997-12-18	Process for preparing cell patterns
DE3876264D1 (en)	1993-01-14	METHOD FOR TREATING FIBROUS MATERIALS.
ATE100509T1 (en)	1994-02-15	METHOD FOR BLEACHING INK-FREE pulp.
DE3761556D1 (en)	1990-03-08	METHOD FOR WINDING THREADS.
DE69015841D1 (en)	1995-02-23	Process for removing bulbous roots.
DE59302068D1 (en)	1996-05-02	Process for processing beet pulp
DE3771026D1 (en)	1991-08-01	METHOD FOR PRODUCING PHOSPHATO.
ATA251890A (en)	1992-05-15	METHOD FOR BLEACHING CELLULOSE MASH
AT384252B (en)	1987-10-27	METHOD FOR DELIGNIFYING BLEACHING OF CELLULOSE MASSES
FI904456A7 (en)	1991-03-13	Method for bleaching pulp
DE68911783D1 (en)	1994-02-10	Process for growing citrus.
EP0720676A4 (en)	1998-03-04	IMPROVED METHOD FOR BLEACHING LIGNOCELLULOSIC PULP
ATA249489A (en)	1992-01-15	METHOD FOR CHLORINE-FREE BLEACHING OF CELLULAS
DE68913310D1 (en)	1994-03-31	METHOD FOR PRINTING CELLULOSE FIBERS.
AT400153B (en)	1995-10-25	METHOD FOR BLEACHING MATERIALS CONTAINING XYLAN AND LIGNOCELLULOSE
DE69001099D1 (en)	1993-04-22	METHOD FOR REMOVING MERCAPTANS.
DE69022174D1 (en)	1995-10-12	Process for ganulating polysaccharides.

Legal Events

Date	Code	Title	Description
2008-03-15	EFA	Change in the company name
2010-06-15	ELJ	Ceased due to non-payment of the annual fee