NO176975B - Fremgangsmåte ved klorfri bleking av masse - Google Patents

Fremgangsmåte ved klorfri bleking av masse Download PDF

Info

Publication number: NO176975B
Authority: NO; Norway
Prior art keywords: ozone; pulp; mass; bleaching; containing gas
Prior art date: 1989-10-30

Application number

NO904673A

Other languages

English (en)

Norwegian (no)

Other versions

NO904673L (no

NO904673D0 (no

Inventor

Herbert Sixta

Gerhard Goetzinger

Anton Hoeglinger

Peter Hendel

Wilfried Rueckl

Walter Peter

Friedrich Kurz

Alfred Schrittwieser

Manfred Schneeweisz

Original Assignee

Chemiefaser Lenzing Ag

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.)

1989-10-30

Filing date

1990-10-29

Publication date

1995-03-20

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=25598564&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=NO176975(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1989-10-30 Priority claimed from AT0249489A external-priority patent/AT404740B/de

1990-10-29 Application filed by Chemiefaser Lenzing Ag filed Critical Chemiefaser Lenzing Ag

1990-10-29 Publication of NO904673D0 publication Critical patent/NO904673D0/no

1991-05-02 Publication of NO904673L publication Critical patent/NO904673L/no

1995-03-20 Publication of NO176975B publication Critical patent/NO176975B/no

Links

238000004061 bleaching Methods 0.000 title claims description 57
238000000034 method Methods 0.000 title claims description 39
230000008569 process Effects 0.000 title description 2
CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 72
238000011282 treatment Methods 0.000 claims description 22
150000002978 peroxides Chemical class 0.000 claims description 18
239000000725 suspension Substances 0.000 claims description 18
238000000605 extraction Methods 0.000 claims description 12
238000002156 mixing Methods 0.000 claims description 10
239000000706 filtrate Substances 0.000 claims description 8
235000008331 Pinus X rigitaeda Nutrition 0.000 claims description 7
235000011613 Pinus brutia Nutrition 0.000 claims description 7
241000018646 Pinus brutia Species 0.000 claims description 7
239000002253 acid Substances 0.000 claims description 6
239000000835 fiber Substances 0.000 claims description 6
238000003756 stirring Methods 0.000 claims description 6
QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
229920001131 Pulp (paper) Polymers 0.000 claims description 3
239000011121 hardwood Substances 0.000 claims description 3
239000007788 liquid Substances 0.000 claims description 2
239000007789 gas Substances 0.000 description 21
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 20
239000001301 oxygen Substances 0.000 description 20
229910052760 oxygen Inorganic materials 0.000 description 20
238000006243 chemical reaction Methods 0.000 description 14
229920002678 cellulose Polymers 0.000 description 4
239000001913 cellulose Substances 0.000 description 4
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
239000000460 chlorine Substances 0.000 description 3
229910052801 chlorine Inorganic materials 0.000 description 3
238000010790 dilution Methods 0.000 description 3
239000012895 dilution Substances 0.000 description 3
238000009826 distribution Methods 0.000 description 3
238000004519 manufacturing process Methods 0.000 description 3
230000007704 transition Effects 0.000 description 3
238000004140 cleaning Methods 0.000 description 2
230000006378 damage Effects 0.000 description 2
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 2
238000009434 installation Methods 0.000 description 2
239000007791 liquid phase Substances 0.000 description 2
239000012071 phase Substances 0.000 description 2
239000002912 waste gas Substances 0.000 description 2
235000018185 Betula X alpestris Nutrition 0.000 description 1
235000018212 Betula X uliginosa Nutrition 0.000 description 1
239000004155 Chlorine dioxide Substances 0.000 description 1
102000003992 Peroxidases Human genes 0.000 description 1
230000002378 acidificating effect Effects 0.000 description 1
230000004888 barrier function Effects 0.000 description 1
230000008901 benefit Effects 0.000 description 1
230000003197 catalytic effect Effects 0.000 description 1
230000008859 change Effects 0.000 description 1
235000019398 chlorine dioxide Nutrition 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
238000010276 construction Methods 0.000 description 1
238000007872 degassing Methods 0.000 description 1
230000004069 differentiation Effects 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
239000000839 emulsion Substances 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
238000001914 filtration Methods 0.000 description 1
230000000977 initiatory effect Effects 0.000 description 1
238000005259 measurement Methods 0.000 description 1
230000020477 pH reduction Effects 0.000 description 1
239000003973 paint Substances 0.000 description 1
238000010422 painting Methods 0.000 description 1
108040007629 peroxidase activity proteins Proteins 0.000 description 1
238000006116 polymerization reaction Methods 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000003825 pressing Methods 0.000 description 1
239000011541 reaction mixture Substances 0.000 description 1
230000009257 reactivity Effects 0.000 description 1
239000011347 resin Substances 0.000 description 1
229920005989 resin Polymers 0.000 description 1
239000007787 solid Substances 0.000 description 1
239000007790 solid phase Substances 0.000 description 1
LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
229920002994 synthetic fiber Polymers 0.000 description 1
238000005406 washing Methods 0.000 description 1
239000002351 wastewater Substances 0.000 description 1

Classifications

- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- 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)
Polysaccharides And Polysaccharide Derivatives (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

NO904673A 1989-10-30 1990-10-29 Fremgangsmåte ved klorfri bleking av masse NO176975B (no)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
AT0249489A AT404740B (de)	1989-10-30	1989-10-30	Verfahren zum chlorfreien bleichen von zellstoffen
AT258889		1989-11-10

Publications (3)

Publication Number	Publication Date
NO904673D0 NO904673D0 (no)	1990-10-29
NO904673L NO904673L (no)	1991-05-02
NO176975B true NO176975B (no)	1995-03-20

Family

ID=25598564

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NO904673A NO176975B (no)	1989-10-30	1990-10-29	Fremgangsmåte ved klorfri bleking av masse

Country Status (25)

Country	Link
US (1)	US5346588A (de)
EP (1)	EP0426652B2 (de)
JP (1)	JP2995422B2 (de)
AR (1)	AR243946A1 (de)
AT (1)	ATE105599T1 (de)
AU (1)	AU636173B2 (de)
BG (1)	BG51052A3 (de)
BR (1)	BR9005476A (de)
CA (1)	CA2028788C (de)
DE (1)	DE59005677D1 (de)
DK (1)	DK0426652T3 (de)
ES (1)	ES2023623T3 (de)
FI (1)	FI102194B (de)
GR (1)	GR910300078T1 (de)
HR (1)	HRP930459B1 (de)
HU (1)	HU205175B (de)
LV (1)	LV10513B (de)
NO (1)	NO176975B (de)
PH (1)	PH30483A (de)
PT (1)	PT95718B (de)
RO (1)	RO107715B1 (de)
SI (1)	SI9012041B (de)
TR (1)	TR24891A (de)
UA (1)	UA27098A1 (de)
YU (1)	YU47233B (de)

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5411634A (en) *	1991-04-30	1995-05-02	Kamyr, Inc.	Medium consistency ozone bleaching
US5411633A (en) *	1991-04-30	1995-05-02	Kamyr, Inc.	Medium consistency pulp ozone bleaching
DE69221385T2 (de) *	1991-05-24	1997-12-11	Union Camp Patent Holding, Inc., Wilmington, Del.	Zweistufiger Reaktor zum Bleichen von Zellstoff und Verfahren zum Bleichen mit Ozon
NO912449L (no) *	1991-06-24	1992-12-28	Norske Stats Oljeselskap	Flyttbar plattform til havs.
ZA924351B (en) *	1991-06-27	1993-03-31	Ahlstroem Oy	Ozone bleaching process
FR2684697B1 (fr) *	1991-12-09	1996-05-03	Toulouse Inst Nat Polytech	Procede de fabrication de pate a papier blanchie.
SE9200183L (sv) *	1992-01-23	1993-07-24	Kamyr Ab	Avskiljningsanordning samt foerfarande
EP0581631A1 (de) *	1992-07-31	1994-02-02	L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude	Mit Ozon selektive Zellstoffbehandlung
CA2078276C (en) *	1992-09-15	2004-05-25	Derek Hornsey	Recovery of oxygen-rich gas from ozone bleaching processes
SE500335C2 (sv) *	1992-10-26	1994-06-06	Sca Wifsta Oestrand Ab	Blekning av sulfatmassa med peroxid-ozon-peroxid
US5364505A (en) *	1992-12-07	1994-11-15	Kamyr, Inc.	Pressurized ozone pulp delignification reactor and a compressor for supplying ozone to the reactor
US6010594A (en) *	1993-03-03	2000-01-04	Ahlstrom Machinery Corporation	Method of bleaching pulp with chlorine-free chemicals wherein a complexing agent is added immediately after an ozone bleach stage
FI93232C (fi) *	1993-03-03	1995-03-10	Ahlstroem Oy	Menetelmä massan valkaisemiseksi kloorivapailla kemikaaleilla
SE501253C2 (sv) *	1993-06-08	1994-12-19	Kvaerner Pulping Tech	Klorfri blekning av kemisk pappersmassa
EP0717800A4 (de) *	1993-09-03	1998-10-28	Union Camp Patent Holding	Mittleres konsistenz-ozonbleichen von hochkonsistenz-ozongebleichtem zellstoff
AU7243594A (en) *	1993-09-15	1995-04-03	Kamyr Inc.	Eop stage for chlorine free bleaching
US5529660A (en) *	1994-04-15	1996-06-25	L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Calude	Method of reducing fluorescence in deinked pulp by treating pulp with ozone and a bleaching agent
US5770011A (en) *	1995-11-17	1998-06-23	International Paper Company	Neutral monoperoxysulfate bleaching process
AT402827B (de) *	1995-12-22	1997-09-25	Chemiefaser Lenzing Ag	Celluloseformkörper und verfahren zu seiner herstellung
US6045588A (en)	1997-04-29	2000-04-04	Whirlpool Corporation	Non-aqueous washing apparatus and method
US7534304B2 (en)	1997-04-29	2009-05-19	Whirlpool Corporation	Non-aqueous washing machine and methods
DE19816925B4 (de)	1998-04-16	2009-12-10	SOCIéTé BIC	Handgerät zum Übertragen eines Filmes von einem Trägerband auf ein Substrat
US6579412B2 (en) *	1998-05-08	2003-06-17	L'air Liquide - Societe' Anonyme A' Directoire Et Conseil De Surveillance Pour L'etude Et L'exploitation Des Procedes Georges Claude	Process for ozone bleaching of low consistency pulp
US6773547B2 (en) *	1998-05-08	2004-08-10	American Air Liquide, Inc.	Process for the bleaching of low consistency pulp using high partial pressure ozone
US20050173082A1 (en) *	1998-08-24	2005-08-11	Arbozon Oy Ltd.	Bleaching of medium consistency pulp with ozone without high shear mixing
FI981808L (fi) *	1998-08-24	2000-02-25	Crs Reactor Engineering Uk Ltd	Menetelmä massan valkaisemiseksi
US7513132B2 (en)	2003-10-31	2009-04-07	Whirlpool Corporation	Non-aqueous washing machine with modular construction
DE10158449C1 (de) *	2001-11-30	2003-12-24	Wedeco Umwelttechnologie Gmbh	Verfahren und Vorrichtung zum Verdichten von ozonhaltigem Gas für eine Ozon-Zellstoffbleiche
US7300468B2 (en)	2003-10-31	2007-11-27	Whirlpool Patents Company	Multifunctioning method utilizing a two phase non-aqueous extraction process
US7513004B2 (en)	2003-10-31	2009-04-07	Whirlpool Corporation	Method for fluid recovery in a semi-aqueous wash process
US7739891B2 (en)	2003-10-31	2010-06-22	Whirlpool Corporation	Fabric laundering apparatus adapted for using a select rinse fluid
US7695524B2 (en)	2003-10-31	2010-04-13	Whirlpool Corporation	Non-aqueous washing machine and methods
EP1740757A1 (de)	2004-04-29	2007-01-10	Unilever N.V.	Chemisches reinigungsverfahren
US7966684B2 (en)	2005-05-23	2011-06-28	Whirlpool Corporation	Methods and apparatus to accelerate the drying of aqueous working fluids
US20080177089A1 (en)	2007-01-19	2008-07-24	Eugene Steven Sadlowski	Novel whitening agents for cellulosic substrates
WO2011146604A2 (en)	2010-05-18	2011-11-24	Milliken & Company	Optical brighteners and compositions comprising the same
EP2571941A2 (de)	2010-05-18	2013-03-27	Milliken & Company	Optische aufheller und zusammensetzungen damit
US8476216B2 (en)	2010-05-28	2013-07-02	Milliken & Company	Colored speckles having delayed release properties
US8470760B2 (en)	2010-05-28	2013-06-25	Milliken 7 Company	Colored speckles for use in granular detergents
WO2012054058A1 (en)	2010-10-22	2012-04-26	The Procter & Gamble Company	Bis-azo colorants for use as bluing agents
EP2630197B1 (de)	2010-10-22	2019-03-06	Milliken & Company	Bis-azo-farbstoffe zur verwendung als blaufärbemittel
US20120101018A1 (en)	2010-10-22	2012-04-26	Gregory Scot Miracle	Bis-azo colorants for use as bluing agents
US8715368B2 (en)	2010-11-12	2014-05-06	The Procter & Gamble Company	Thiophene azo dyes and laundry care compositions containing the same
CN103210073B (zh)	2010-11-12	2016-06-08	宝洁公司	噻吩偶氮染料和包含它们的衣物洗涤护理组合物
BR112013011604B1 (pt)	2010-11-12	2020-01-07	Milliken & Company	Corantes de azo tiofeno
WO2012112741A1 (en)	2011-02-16	2012-08-23	The Procter & Gamble Company	Compositions and methods of bleaching
CN103492062A (zh)	2011-02-25	2014-01-01	美利肯公司	胶囊及包含其的组合物
US9163146B2 (en)	2011-06-03	2015-10-20	Milliken & Company	Thiophene azo carboxylate dyes and laundry care compositions containing the same
FR3007044B1 (fr) *	2013-06-13	2016-01-15	Air Liquide	Procede de traitement des pates papetieres chimiques par traitement a l'ozone en presence d'ions magnesium
US10155868B2 (en)	2015-10-13	2018-12-18	Milliken & Company	Whitening agents for cellulosic substrates
US9745544B2 (en)	2015-10-13	2017-08-29	The Procter & Gamble Company	Whitening agents for cellulosic substrates
US9976035B2 (en)	2015-10-13	2018-05-22	Milliken & Company	Whitening agents for cellulosic substrates
US9777250B2 (en)	2015-10-13	2017-10-03	Milliken & Company	Whitening agents for cellulosic substrates
US9902923B2 (en)	2015-10-13	2018-02-27	The Procter & Gamble Company	Polyglycerol dye whitening agents for cellulosic substrates
US9719056B1 (en)	2016-01-29	2017-08-01	The Procter & Gamble Company	Bis-azo colorants for use as bluing agents
US20180072970A1 (en)	2016-09-13	2018-03-15	The Procter & Gamble Company	Stable violet-blue to blue imidazolium compounds
US20200123472A1 (en)	2018-10-18	2020-04-23	Milliken & Company	Polyethyleneimine compounds containing n-halamine and derivatives thereof
US11518963B2 (en)	2018-10-18	2022-12-06	Milliken & Company	Polyethyleneimine compounds containing N-halamine and derivatives thereof
US11299591B2 (en)	2018-10-18	2022-04-12	Milliken & Company	Polyethyleneimine compounds containing N-halamine and derivatives thereof
US20200123319A1 (en)	2018-10-18	2020-04-23	Milliken & Company	Polyethyleneimine compounds containing n-halamine and derivatives thereof
US20200123475A1 (en)	2018-10-18	2020-04-23	Milliken & Company	Polyethyleneimine compounds containing n-halamine and derivatives thereof
US11732218B2 (en)	2018-10-18	2023-08-22	Milliken & Company	Polyethyleneimine compounds containing N-halamine and derivatives thereof
US12195703B2 (en)	2020-03-02	2025-01-14	Milliken & Company	Composition comprising hueing agent
US11718814B2 (en)	2020-03-02	2023-08-08	Milliken & Company	Composition comprising hueing agent
US20220079862A1 (en)	2020-09-14	2022-03-17	Milliken & Company	Hair care composition containing polymeric colorant
US11344492B2 (en)	2020-09-14	2022-05-31	Milliken & Company	Oxidative hair cream composition containing polymeric colorant
WO2022197295A1 (en)	2021-03-17	2022-09-22	Milliken & Company	Polymeric colorants with reduced staining

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4119486A (en) *	1975-08-14	1978-10-10	Westvaco Corporation	Process for bleaching wood pulp with ozone in the presence of a cationic surfactant
US4080249A (en) *	1976-06-02	1978-03-21	International Paper Company	Delignification and bleaching of a lignocellulosic pulp slurry with ozone
CA1090510A (en) *	1976-06-02	1980-12-02	Arthur W. Kempf	Delignification and bleaching of a lignocellulosic pulp slurry with ozone
US4216054A (en) *	1977-09-26	1980-08-05	Weyerhaeuser Company	Low-consistency ozone delignification
US4372812A (en) *	1978-04-07	1983-02-08	International Paper Company	Chlorine free process for bleaching lignocellulosic pulp
US4310384A (en) *	1979-01-11	1982-01-12	Weyerhaeuser Company	Reducing chemical transfer between treatment stages
US4229252A (en) *	1979-01-11	1980-10-21	Weyerhaeuser Company	Additives for ozone bleaching
US4283251A (en) *	1980-01-24	1981-08-11	Scott Paper Company	Ozone effluent bleaching
US4619733A (en) *	1983-11-30	1986-10-28	Kooi Boon Lam	Pollution free pulping process using recycled wash effluent from multiple bleach stages to remove black liquor and recovering sodium hydroxide from the black liquor
AT380496B (de) *	1984-06-27	1986-05-26	Steyrermuehl Papier	Verfahren und reaktor zur delignifizierung von zellstoff mit sauerstoff
US4902381A (en) *	1988-12-09	1990-02-20	Kamyr, Inc.	Method of bleaching pulp with ozone-chlorine mixtures
FI89516B (fi) *	1989-05-10	1993-06-30	Ahlstroem Oy	Foerfarande foer blekning av cellulosamassa med otson

1990
- 1990-10-15 AU AU64552/90A patent/AU636173B2/en not_active Ceased
- 1990-10-23 PH PH41432A patent/PH30483A/en unknown
- 1990-10-23 RO RO146180A patent/RO107715B1/ro unknown
- 1990-10-26 TR TR90/1031A patent/TR24891A/xx unknown
- 1990-10-26 AR AR90318208A patent/AR243946A1/es active
- 1990-10-29 SI SI9012041A patent/SI9012041B/sl unknown
- 1990-10-29 UA UA4831464A patent/UA27098A1/uk unknown
- 1990-10-29 NO NO904673A patent/NO176975B/no unknown
- 1990-10-29 CA CA002028788A patent/CA2028788C/en not_active Expired - Lifetime
- 1990-10-29 YU YU204190A patent/YU47233B/sh unknown
- 1990-10-29 BR BR9005476-8A patent/BR9005476A/pt not_active IP Right Cessation
- 1990-10-29 PT PT95718A patent/PT95718B/pt not_active IP Right Cessation
- 1990-10-29 FI FI905327A patent/FI102194B/fi active IP Right Grant
- 1990-10-29 HU HU906923A patent/HU205175B/hu not_active IP Right Cessation
- 1990-10-29 BG BG093110A patent/BG51052A3/bg unknown
- 1990-10-30 JP JP2290960A patent/JP2995422B2/ja not_active Expired - Fee Related
- 1990-10-30 DE DE59005677T patent/DE59005677D1/de not_active Expired - Fee Related
- 1990-10-30 EP EP90890291A patent/EP0426652B2/de not_active Expired - Lifetime
- 1990-10-30 DK DK90890291.9T patent/DK0426652T3/da not_active Application Discontinuation
- 1990-10-30 ES ES90890291T patent/ES2023623T3/es not_active Expired - Lifetime
- 1990-10-30 AT AT9090890291T patent/ATE105599T1/de active
1991
- 1991-12-10 GR GR91300078T patent/GR910300078T1/el unknown
1992
- 1992-03-26 US US07/859,236 patent/US5346588A/en not_active Expired - Lifetime
1993
- 1993-01-12 LV LVP-93-20A patent/LV10513B/lv unknown
- 1993-03-23 HR HRP-2041/90A patent/HRP930459B1/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK0426652T3 (da)	1994-06-13
HUT55847A (en)	1991-06-28
CA2028788C (en)	1997-04-15
FI102194B1 (fi)	1998-10-30
BR9005476A (pt)	1991-09-17
ES2023623T3 (es)	1994-08-01
US5346588A (en)	1994-09-13
LV10513B (en)	1995-10-20
SI9012041A (en)	1997-08-31
YU204190A (sh)	1992-07-20
NO904673L (no)	1991-05-02
BG51052A3 (bg)	1993-01-15
DE59005677D1 (de)	1994-06-16
NO904673D0 (no)	1990-10-29
EP0426652A1 (de)	1991-05-08
FI102194B (fi)	1998-10-30
AU6455290A (en)	1991-05-02
HRP930459A2 (en)	1996-04-30
EP0426652B2 (de)	2001-11-14
CA2028788A1 (en)	1991-05-01
RO107715B1 (ro)	1993-12-30
JP2995422B2 (ja)	1999-12-27
ATE105599T1 (de)	1994-05-15
UA27098A1 (uk)	2000-02-28
FI905327A0 (fi)	1990-10-29
JPH03152286A (ja)	1991-06-28
TR24891A (tr)	1992-07-01
HU906923D0 (en)	1991-05-28
PH30483A (en)	1997-05-28
AU636173B2 (en)	1993-04-22
LV10513A (lv)	1995-02-20
ES2023623A4 (es)	1992-02-01
HRP930459B1 (en)	1998-12-31
EP0426652B1 (de)	1994-05-11
YU47233B (sh)	1995-01-31
AR243946A1 (es)	1993-09-30
PT95718B (pt)	1997-11-28
GR910300078T1 (en)	1991-12-10
HU205175B (en)	1992-03-30
PT95718A (pt)	1991-09-13
SI9012041B (sl)	2000-06-30

Publication	Publication Date	Title
NO176975B (no)	1995-03-20	Fremgangsmåte ved klorfri bleking av masse
NO300929B1 (no)	1997-08-18	Fremgangsmåte for bleking av lignocellulosematerialer
FI98077C (fi)	1997-04-10	Menetelmä liukosellun valkaisemiseksi ilman klooria
US3874992A (en)	1975-04-01	Press alkaline extraction of cellulosic pulp
Li et al.	2015	Clean bleaching engineering practice for bagasse pulp: totally chlorine-free and elemental chlorine-free bleaching realized with the same production line
US6019870A (en)	2000-02-01	Process for the preparation of delignified and bleached chemical paper pulps
FI74053C (fi)	1987-12-10	Foerfarande foer delignifiering av kemisk massa.
WO1992012288A1 (en)	1992-07-23	Split alkali addition for high consistency oxygen delignification
CA2347454C (en)	2006-02-07	Method and apparatus for treating pulp
KR100194405B1 (ko)	1999-06-15	목재펄프의 무염소 표백방법
AU732875B2 (en)	2001-05-03	Process for bleaching a paper pulp with ozone and chlorine dioxide
JPH08506146A (ja)	1996-07-02	パルプの連続蒸解法
NO740054L (de)	1975-04-14
EP3380667B1 (de)	2020-01-08	Verfahren und vorrichtung zur sauerstoffdelignifizierung von zellstoff
RU2091530C1 (ru)	1997-09-27	Способ отбеливания древесной пульпы
CA2075875A1 (en)	1993-02-15	Use of wash press for pulp alkali addition process
US6793771B2 (en)	2004-09-21	Ozone bleaching of low consistency pulp
RU2123552C1 (ru)	1998-12-20	Способ отбелки целлюлозы
JPH03161586A (ja)	1991-07-11	リグノセルローズ含有繊維の非木質化処理方法
Lanna et al.	0	density wood has a higher specific consumption (04 m'wood/odt pulp) and slightly higher forest
SK281290B6 (sk)	2001-02-12	Spôsob bielenia buničiny bez použitia chlóru
JP2004339628A (ja)	2004-12-02	漂白パルプの製造方法
Alajoutsijärvi	2015	Replacing sulfuric acid in pulp bleaching with internally formed organic acids
Gomes	0	Ozone application in the dissolving pulp bleaching
JPH1025686A (ja)	1998-01-27	製紙用パルプの漂白方法