PT778909E - Branqueamentode de pasta - Google Patents

Branqueamentode de pasta

Info

Publication number: PT778909E
Authority: PT; Portugal
Prior art keywords: bleaching; sequence; treating; whitening; paste
Prior art date: 1994-08-31

Application number

PT95930753T

Other languages

English (en)

Inventor

Marten Dahl

Original Assignee

Valmet Fibertech 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.)

1994-08-31

Filing date

1995-08-11

Publication date

2003-01-31

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=20395066&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PT778909(E) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1995-08-11 Application filed by Valmet Fibertech Ab filed Critical Valmet Fibertech Ab

2003-01-31 Publication of PT778909E publication Critical patent/PT778909E/pt

Links

230000002087 whitening effect Effects 0.000 title 1
238000004061 bleaching Methods 0.000 abstract 5
MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 abstract 2
238000005406 washing Methods 0.000 abstract 2
239000004155 Chlorine dioxide Substances 0.000 abstract 1
229920001131 Pulp (paper) Polymers 0.000 abstract 1
239000002738 chelating agent Substances 0.000 abstract 1
235000019398 chlorine dioxide Nutrition 0.000 abstract 1
238000000034 method Methods 0.000 abstract 1

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
- D21C9/1026—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
- D21C9/12—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
- 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)
Detergent Compositions (AREA)
Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Semiconductor Lasers (AREA)
Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
Coils Or Transformers For Communication (AREA)
Medicinal Preparation (AREA)
Coloring Foods And Improving Nutritive Qualities (AREA)

PT95930753T 1994-08-31 1995-08-11 Branqueamentode de pasta PT778909E (pt)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE9402885A SE514697C2 (sv)	1994-08-31	1994-08-31	Eliminering av metalljoner vid blekning av massa

Publications (1)

Publication Number	Publication Date
PT778909E true PT778909E (pt)	2003-01-31

Family

ID=20395066

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
PT95930753T PT778909E (pt)	1994-08-31	1995-08-11	Branqueamentode de pasta

Country Status (17)

Country	Link
US (1)	US6540872B1 (pt)
EP (1)	EP0778909B1 (pt)
JP (1)	JPH10505639A (pt)
CN (1)	CN1065578C (pt)
AT (1)	ATE226658T1 (pt)
AU (1)	AU687626B2 (pt)
BR (1)	BR9508653A (pt)
CA (1)	CA2197771A1 (pt)
DE (1)	DE69528660T2 (pt)
ES (1)	ES2185715T3 (pt)
FI (1)	FI970821A (pt)
NO (1)	NO970907D0 (pt)
NZ (1)	NZ292288A (pt)
PT (1)	PT778909E (pt)
SE (1)	SE514697C2 (pt)
WO (1)	WO1996006976A1 (pt)
ZA (1)	ZA957070B (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6375797B1 (en) *	1996-06-20	2002-04-23	Andritz-Ahlstrom Oy	Bleaching chemical pulp in a PkDQ-Po Sequence
SE507742C2 (sv) *	1996-11-08	1998-07-06	Sunds Defibrator Ind Ab	Förblekningsbehandling av pappersmassa med klordioxid, alkali och komplexbildare utan mellanliggande tvättar
SE0200981D0 (sv) *	2002-03-28	2002-03-28	Eka Chemicals Ab	Process for bleaching lignocellulose-containing non-wood pulp
JP4513959B2 (ja) *	2004-09-17	2010-07-28	三菱瓦斯化学株式会社	製紙用化学パルプの半晒漂白方法
FI123102B (fi) *	2006-03-31	2012-11-15	Laennen Tutkimus Western Res Inc Oy	Kemiallisen massan valkaisumenetelmä
WO2009154898A1 (en)	2008-06-20	2009-12-23	International Paper Company	Composition and recording sheet with improved optical properties
CN101812812B (zh) *	2009-02-25	2012-08-08	山东福荫造纸环保科技有限公司	一种植物纤维浆料无元素氯的漂白方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1100709A (en) *	1965-06-25	1968-01-24	Pulp Paper Res Inst	Two-stage purification of fibrous cellulose material
DE2219504C2 (de) *	1972-04-21	1974-10-03	Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt	Mehrstufenbleiche von Zellstoffen mit erheblich reduziertem Chloreinsatz
ATE97179T1 (de) *	1989-06-06	1993-11-15	Eka Nobel Ab	Verfahren zum bleichen von lignocellulose enthaltenden zellstoffen.
US5091054A (en) *	1989-08-18	1992-02-25	Degussa Corporation	Process for bleaching and delignification of lignocellulosic
SE9000340L (sv) *	1990-01-31	1991-08-01	Eka Nobel Ab	Foerfarande vid blekning av lignocellulosahaltigt material
SE469842C (sv) *	1992-01-21	1996-01-15	Sunds Defibrator Ind Ab	Blekning av kemisk massa med peroxid
SE9301960L (sv) *	1993-06-08	1994-07-25	Kvaerner Pulping Tech	Blekning av kemisk massa med peroxid vid övertryck
SE502706E (sv) *	1994-04-05	1999-09-27	Mo Och Domsjoe Ab	Framställnng av blekt cellulosamassa genom blekning med klordioxid och behandling av komplexbildare i samma steg

1994
- 1994-08-31 SE SE9402885A patent/SE514697C2/sv not_active IP Right Cessation
1995
- 1995-08-11 PT PT95930753T patent/PT778909E/pt unknown
- 1995-08-11 DE DE69528660T patent/DE69528660T2/de not_active Revoked
- 1995-08-11 EP EP95930753A patent/EP0778909B1/en not_active Revoked
- 1995-08-11 CA CA002197771A patent/CA2197771A1/en not_active Abandoned
- 1995-08-11 CN CN95194782A patent/CN1065578C/zh not_active Expired - Fee Related
- 1995-08-11 WO PCT/SE1995/000920 patent/WO1996006976A1/en not_active Application Discontinuation
- 1995-08-11 JP JP8508659A patent/JPH10505639A/ja not_active Withdrawn
- 1995-08-11 AU AU34017/95A patent/AU687626B2/en not_active Ceased
- 1995-08-11 NZ NZ292288A patent/NZ292288A/en unknown
- 1995-08-11 AT AT95930753T patent/ATE226658T1/de not_active IP Right Cessation
- 1995-08-11 ES ES95930753T patent/ES2185715T3/es not_active Expired - Lifetime
- 1995-08-11 BR BR9508653A patent/BR9508653A/pt not_active IP Right Cessation
- 1995-08-11 US US08/793,509 patent/US6540872B1/en not_active Expired - Fee Related
- 1995-08-23 ZA ZA957070A patent/ZA957070B/xx unknown
1997
- 1997-02-27 FI FI970821A patent/FI970821A/fi not_active Application Discontinuation
- 1997-02-27 NO NO970907A patent/NO970907D0/no not_active Application Discontinuation

Also Published As

Publication number	Publication date
ES2185715T3 (es)	2003-05-01
EP0778909A1 (en)	1997-06-18
NZ292288A (en)	1997-11-24
ZA957070B (en)	1996-04-15
ATE226658T1 (de)	2002-11-15
DE69528660D1 (de)	2002-11-28
WO1996006976A1 (en)	1996-03-07
FI970821A0 (fi)	1997-02-27
CA2197771A1 (en)	1996-03-07
EP0778909B1 (en)	2002-10-23
DE69528660T2 (de)	2003-06-26
US6540872B1 (en)	2003-04-01
BR9508653A (pt)	1997-11-11
CN1157644A (zh)	1997-08-20
JPH10505639A (ja)	1998-06-02
AU687626B2 (en)	1998-02-26
CN1065578C (zh)	2001-05-09
SE9402885L (sv)	1996-03-01
NO970907L (no)	1997-02-27
SE9402885D0 (sv)	1994-08-31
AU3401795A (en)	1996-03-22
FI970821A (fi)	1997-02-27
NO970907D0 (no)	1997-02-27
SE514697C2 (sv)	2001-04-02

Publication	Publication Date	Title
PL309191A1 (en)	1995-09-18	Method delignifying a lignocellulose containing pulp
DE3574486D1 (de)	1990-01-04	Verfahren zur delignifizierung und bleiche von zellstoffen.
FI963985A0 (fi)	1996-10-04	Menetelmä massan kompleksikäsittelylle klooridioksidivaiheen yhteydessä
PT778909E (pt)	2003-01-31	Branqueamentode de pasta
IT1249694B (it)	1995-03-09	Procedimento per la sbianca di pasta di legno senza impiego di cloro elementare. (caso 156-7131)
SE0302088D0 (sv)	2003-07-17	Method of xylanase in bleaching
SE9700992L (sv)	1997-05-16	Förfarande för blekning av kraftmassa
ES2050992T3 (es)	1994-06-01	Deslignificacion con oxigeno reforzada con peroxido de hidrogeno.
SE9702583D0 (sv)	1997-07-04	Förfarande för blekning av pappersmassa
AU6986294A (en)	1995-01-03	Method of bleaching pulp without using chlorine chemicals
SE9401628L (sv)	1995-11-11	Förfarande vid syrgasdelignifiering
SE0002930D0 (sv)	2000-08-14	Blekning av massa
ES2055602T3 (es)	1994-08-16	Blanqueo de pasta quimica.
SE9501623D0 (sv)	1995-05-02	Blekning av massa
ES2129142T3 (es)	1999-06-01	Procedimiento para el blanqueo de una pasta papelera quimica.
ES2119234T3 (es)	1998-10-01	Procedimiento para el blanqueo de una pasta papelera quimica.
WO2003080925A3 (fr)	2004-04-01	Utilisation d'un complexe phenantroline-cuivre lors de la fabrication de pate a papier
SE9502962D0 (sv)	1995-08-24	Blekning av massa
SE9603630D0 (sv)	1996-10-04	Förfarande för blekning av massa
TR199900557T2 (xx)	1999-06-21	Çamaşırların suya basılması işlemi ve ağartıcı bileşimler.
TH21824A (th)	1996-11-20	Process for delignification and bleaching of unbleached pulp suspensions or pulp suspensions prebleached in an