FI906401A - Ways to bleach pulp - Google Patents

Ways to bleach pulp Download PDF

Info

Publication number: FI906401A
Authority: FI; Finland
Prior art keywords: ways; bleach pulp; bleach; pulp
Prior art date: 1989-12-29

Application number

FI906401A

Other languages

Finnish (fi)

Swedish (sv)

Other versions

FI906401A0 (en

FI95292B (en

FI95292C (en

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

1990-12-27

Publication date

1991-06-30

1990-12-27 Application filed by Kamyr Ab filed Critical Kamyr Ab

1990-12-27 Publication of FI906401A0 publication Critical patent/FI906401A0/en

1991-06-30 Publication of FI906401A publication Critical patent/FI906401A/en

1995-09-29 Publication of FI95292B publication Critical patent/FI95292B/en

1996-01-10 Application granted granted Critical

1996-01-10 Publication of FI95292C publication Critical patent/FI95292C/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)

FI906401A 1989-12-29 1990-12-27 Pulp bleaching method FI95292C (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
SE8904404A SE467261B (en)	1989-12-29	1989-12-29	WHITING CELLULOSAMASSA WITH CHLORIDE Dioxide AND OZONE IN ONE AND SAME STEP
SE8904404		1989-12-29

Publications (4)

Publication Number	Publication Date
FI906401A0 FI906401A0 (en)	1990-12-27
FI906401A true FI906401A (en)	1991-06-30
FI95292B FI95292B (en)	1995-09-29
FI95292C FI95292C (en)	1996-01-10

Family

ID=20377905

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI906401A FI95292C (en)	1989-12-29	1990-12-27	Pulp bleaching method

Country Status (9)

Country	Link
JP (1)	JP2934512B2 (en)
AT (1)	AT395444B (en)
BR (1)	BR9006579A (en)
CA (1)	CA2031850C (en)
DE (1)	DE4039294C2 (en)
FI (1)	FI95292C (en)
FR (1)	FR2656633B1 (en)
NO (1)	NO176060C (en)
SE (1)	SE467261B (en)

Families Citing this family (6)

* 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
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
SE522593C2 (en) *	1999-07-06	2004-02-24	Kvaerner Pulping Tech	Oxygen gas delignification system and method of pulp of lignocellulosic material
GB0322598D0 (en)	2003-09-26	2003-10-29	Victrex Mfg Ltd	Polymeric material
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
CN110656527A (en) *	2019-09-12	2020-01-07	华南理工大学	Method and device for efficiently bleaching medium-consistency paper pulp by using ozone and chlorine dioxide in synergy mode

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 SE8904404A patent/SE467261B/en unknown
1990
- 1990-12-09 DE DE4039294A patent/DE4039294C2/en not_active Expired - Fee Related
- 1990-12-10 CA CA002031850A patent/CA2031850C/en not_active Expired - Lifetime
- 1990-12-12 AT AT0251890A patent/AT395444B/en not_active IP Right Cessation
- 1990-12-26 BR BR909006579A patent/BR9006579A/en not_active IP Right Cessation
- 1990-12-27 NO NO905598A patent/NO176060C/en unknown
- 1990-12-27 FI FI906401A patent/FI95292C/en active IP Right Grant
- 1990-12-28 FR FR9016499A patent/FR2656633B1/en not_active Expired - Fee Related
- 1990-12-28 JP JP2415578A patent/JP2934512B2/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
FI906401A0 (en)	1990-12-27
AT395444B (en)	1992-12-28
DE4039294C2 (en)	1993-11-11
NO176060C (en)	1995-01-25
SE8904404L (en)	1991-06-30
SE8904404D0 (en)	1989-12-29
JP2934512B2 (en)	1999-08-16
ATA251890A (en)	1992-05-15
CA2031850C (en)	1995-11-21
FR2656633A1 (en)	1991-07-05
NO176060B (en)	1994-10-17
SE467261B (en)	1992-06-22
NO905598L (en)	1991-07-01
NO905598D0 (en)	1990-12-27
FI95292B (en)	1995-09-29
DE4039294A1 (en)	1991-07-04
JPH04263687A (en)	1992-09-18
CA2031850A1 (en)	1991-06-30
BR9006579A (en)	1991-10-01
FR2656633B1 (en)	1996-06-07
FI95292C (en)	1996-01-10

Publication	Publication Date	Title
DK451488D0 (en)	1988-08-12	BLEACH
DK255288A (en)	1989-01-11	Encapsulated bleach
BR8907609A (en)	1991-07-30	PULP WASHING PRESS
DK152588D0 (en)	1988-03-21	BLEACH COMPOSITION
NO173885C (en)	1994-02-16	Bleach Mixture
NO173948C (en)	1994-02-23	Aqueous bleach
ATA310787A (en)	1993-06-15	SCREENING MACHINE
FI95291C (en)	1996-01-10	Ways to bleach pulp
DE69027423D1 (en)	1996-07-18	BLEACH COMPOSITION
DK562089A (en)	1990-05-12	BLEACH
FI892741A0 (en)	1989-06-05	Ways to make pulp
DE69024334D1 (en)	1996-02-01	Bleach
DE68926381D1 (en)	1996-06-05	Bleach
BR8807561A (en)	1990-04-17	PULP SCREENING APPLIANCE
FI906401A (en)	1991-06-30	Ways to bleach pulp
FI895397A0 (en)	1989-11-13	Headbox
SE8800607A0 (en)	1988-08-24	Headbox
TR25794A (en)	1993-09-01	IMPROVED FIBER SALIVING MACHINE
FI934833A0 (en)	1993-11-01	Foerfarande Foer blekning av lignocellulosahaltig pulp
KR890004968U (en)	1989-04-18	Laundry press machine
ES552294A0 (en)	1986-06-16	OLIVE PULP MACHINE
DK145487D0 (en)	1987-03-20	BLEACHING STAIN
SE9303825L (en)	1994-10-11	Ways to bleach
BR6700383U (en)	1988-10-11	JUICE MAKING MACHINE
SE8702278D0 (en)	1987-05-27	BLEACH SYSTEM

Legal Events

Date	Code	Title	Description
1994-12-29	HC	Name/ company changed in application	Owner name: KVAERNER PULPING TECHNOLOGIES AKTIEBOLAG
1995-09-01	BB	Publication of examined application
2004-08-31	FG	Patent granted	Owner name: KVAERNER PULPING AB
2007-07-13	PC	Transfer of assignment of patent	Owner name: METSO FIBER KARLSTAD AB Free format text: METSO FIBER KARLSTAD AB