FI965207L - Parannettu menetelmä valkaisulaitoksen suodatteen palauttamiseksi kiertoon - Google Patents

Parannettu menetelmä valkaisulaitoksen suodatteen palauttamiseksi kiertoon Download PDF

Info

Publication number: FI965207L
Authority: FI; Finland
Prior art keywords: improved method; bleach plant; plant filtrate; recycling; recycling bleach
Prior art date: 1991-01-28

Application number

FI965207A

Other languages

English (en)

Swedish (sv)

Other versions

FI965207A7 (fi

FI965207A0 (fi

Inventor

Gerald E Maples

Raman Ambady

Original Assignee

Champion Int Corp

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.)

1991-01-28

Filing date

1994-06-27

Publication date

1997-02-21

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27560835&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI965207(L) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1994-06-27 Application filed by Champion Int Corp filed Critical Champion Int Corp

1994-06-27 Priority claimed from NZ269362A external-priority patent/NZ269362A/en

1996-12-23 Publication of FI965207A0 publication Critical patent/FI965207A0/fi

1997-02-21 Publication of FI965207A7 publication Critical patent/FI965207A7/fi

1997-02-21 Publication of FI965207L publication Critical patent/FI965207L/fi

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
- 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
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0021—Introduction of various effluents, e.g. waste waters, into the pulping, recovery and regeneration cycle (closed-cycle)
- D21C11/0028—Effluents derived from the washing or bleaching plants
- 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
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating 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
- D21C9/1026—Other features in bleaching processes
- 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
- D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills

Landscapes

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

FI965207A 1991-01-28 1994-06-27 Parannettu menetelmä valkaisulaitoksen suodatteen palauttamiseksi kiertoon FI965207L (fi)

Applications Claiming Priority (7)

Application Number	Priority Date	Filing Date	Title
US64617991A	1991-01-28	1991-01-28
US87367392A	1992-04-24	1992-04-24
US07/944,327 US5352332A (en)	1991-01-28	1992-09-14	Process for recycling bleach plant filtrate
NZ269362A NZ269362A (en)	1991-01-28	1994-06-27	Recycling bleach plant filtrate from the oxidative extraction stage and the first chlorine dioxide bleaching stage
PCT/US1994/007450 WO1996000322A1 (en)	1991-01-28	1994-06-27	Improved process for recycling bleach plant filtrate
BR9408596A BR9408596A (pt)	1991-01-28	1994-06-27	Processo para alvejamento de polpa de madeira kraft
CA002193829A CA2193829A1 (en)	1991-01-28	1994-06-27	Improved process for recycling bleach plant filtrate

Publications (3)

Publication Number	Publication Date
FI965207A0 FI965207A0 (fi)	1996-12-23
FI965207A7 FI965207A7 (fi)	1997-02-21
FI965207L true FI965207L (fi)	1997-02-21

Family

ID=27560835

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI965207A FI965207L (fi)	1991-01-28	1994-06-27	Parannettu menetelmä valkaisulaitoksen suodatteen palauttamiseksi kiertoon

Country Status (7)

Country	Link
US (1)	US5352332A (fi)
EP (1)	EP0739434B1 (fi)
BR (1)	BR9408596A (fi)
CA (1)	CA2193829A1 (fi)
DE (1)	DE69416329D1 (fi)
FI (1)	FI965207L (fi)
WO (1)	WO1996000322A1 (fi)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5549788A (en) *	1992-07-30	1996-08-27	A. Ahlstrom Corporation	Minimal effluents discharge pulp mill with chemical recovery
SE9301160L (sv) *	1992-08-28	1994-03-01	Sunds Defibrator Ind Ab	Förfarande för behandling av processvatten
SE501613C2 (sv) *	1993-08-03	1995-03-27	Kvaerner Pulping Tech	Sätt vid integrering av blekning och återvinning vid framställning av massa
US5554259A (en) *	1993-10-01	1996-09-10	Union Camp Patent Holdings, Inc.	Reduction of salt scale precipitation by control of process stream Ph and salt concentration
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
SE504374C2 (sv) *	1994-10-20	1997-01-20	Kvaerner Pulping Tech	Lakning av elfilteraska
US5759258A (en) *	1995-03-15	1998-06-02	Minerals Technologies Inc.	Recycling of mineral fillers from the residue of a paper deinking plant
US5961803A (en) *	1995-07-12	1999-10-05	Eka Chemicals Ab	Leaching process
US5728264A (en) *	1995-10-25	1998-03-17	Union Camp Patent Holding, Inc.	Avoidance of salt scaling by acidic pulp washing process
SE9603972D0 (sv) *	1996-10-31	1996-10-31	Kvaerner Pulping Tech	Förfarande för framställning av aska bestående huvudsakligen av natriumsulfat från en sodapanna
US5980717A (en) *	1997-01-03	1999-11-09	Eka Chemical Ab	Recovery process in a pulp mill
SE9700012D0 (sv) *	1997-01-03	1997-01-03	Eka Chemicals Ab	Recovery process in a pulp mill
US5922171A (en) *	1997-01-24	1999-07-13	Eco-Tec Limited	Method and apparatus for removing sodium chloride from pulping chemicals using an amphoteric ion-exchange resin
SE514825C2 (sv) *	1999-09-16	2001-04-30	Aga Ab	Oxygendelignifiering av cellulosamassa med oxiderad vitlut som alkalikälla
US20050087315A1 (en) *	2003-10-28	2005-04-28	Donovan Joseph R.	Low consistency oxygen delignification process
FI122626B (fi) *	2006-03-31	2012-04-30	Laennen Tutkimus Western Res Inc Oy	Kemiallisen massan valkaisumenetelmä
FI123102B (fi) *	2006-03-31	2012-11-15	Laennen Tutkimus Western Res Inc Oy	Kemiallisen massan valkaisumenetelmä
US20080061008A1 (en) *	2006-09-12	2008-03-13	Kelsey Robert L	Systems and methods for treating metalworking fluids
US20080110584A1 (en) *	2006-11-15	2008-05-15	Caifang Yin	Bleaching process with at least one extraction stage
EP2114829A1 (en) *	2007-02-13	2009-11-11	VRTX Technologies, LLC	Systems and methods for treatment of wastewater
US7651621B2 (en) *	2007-04-18	2010-01-26	Vrtx Technologies, Llc	Methods for degassing one or more fluids
US20080257411A1 (en) *	2007-04-18	2008-10-23	Kelsey Robert L	Systems and methods for preparation of emulsions
US20080257828A1 (en) *	2007-04-18	2008-10-23	Kelsey Robert L	Systems and methods for reduction of metal contaminants in fluids
US20090152212A1 (en) *	2007-04-18	2009-06-18	Kelsey Robert L	Systems and methods for treatment of groundwater
UY31040A1 (es) *	2007-04-23	2008-11-28	Andritz Oy	Proceso de recuperacion para una fabrica de pasta de celulosa
US20090000751A1 (en) *	2007-06-29	2009-01-01	Caifang Yin	Bleaching process with at least one extraction stage
US8246779B2 (en) *	2009-09-24	2012-08-21	Noram Engineering And Constructors Ltd.	Maintenance of sulfur concentration in Kraft pulp processes
AU2011229776B2 (en)	2010-03-23	2013-11-28	International Paper Company	Improved BCTMP filtrate recycling system and method
CN101838945B (zh) *	2010-06-23	2012-11-07	永州湘江纸业有限责任公司	在一种造纸废水循环利用方法
FI126767B (fi) *	2012-11-16	2017-05-15	Andritz Oy	Menetelmä talteenottokattilan tuhkan uuttamiseksi
CN104928964B (zh) *	2014-03-18	2017-02-15	中国科学院大连化学物理研究所	一种减少非木浆造纸氯气漂白过程中二噁英生成的方法
SE542676C2 (en) *	2017-11-29	2020-06-23	Axolot Solutions Ab	Method for washer pulp where the wash filter is purified and re-circulated
EP3755839B1 (en)	2018-02-23	2024-08-21	GP Cellulose GmbH	Novel dissolving wood pulps and methods of making and using the same
US11591751B2 (en)	2019-09-17	2023-02-28	Gpcp Ip Holdings Llc	High efficiency fiber bleaching process
US12286751B2 (en) *	2021-01-06	2025-04-29	Gpcp Ip Holdings Llc	Oxygen treatment of high kappa fibers
US12435469B2 (en)	2022-02-22	2025-10-07	Gpcp Ip Holdings Llc	High yield chemical pulping and bleaching process
EP4428297A1 (en) *	2023-03-06	2024-09-11	L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude	Process to obtain fully oxidized white liquor for use in the fiberline of a kraft pulp process

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1217833A (en) *	1967-01-16	1970-12-31	Electric Reduction Co	Improved cellulosic pulp process
FI52876C (fi) *	1974-09-03	1978-10-17	Ahlstroem Oy	Foerfarande foer tvaettning av en cellulosamassa fraon alkalikok
ZA761255B (en) *	1975-03-11	1977-03-30	Erco Envirotech Ltd	Bleachplant operation
US4269656A (en) *	1980-04-02	1981-05-26	Ingersoll-Rand Company	Wood pulp forming system and method of recovering spent chemicals
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
US4946556A (en) *	1989-04-25	1990-08-07	Kamyr, Inc.	Method of oxygen delignifying wood pulp with between stage washing

1992
- 1992-09-14 US US07/944,327 patent/US5352332A/en not_active Expired - Lifetime
1994
- 1994-06-27 EP EP94923306A patent/EP0739434B1/en not_active Revoked
- 1994-06-27 FI FI965207A patent/FI965207L/fi unknown
- 1994-06-27 DE DE69416329T patent/DE69416329D1/de not_active Expired - Lifetime
- 1994-06-27 WO PCT/US1994/007450 patent/WO1996000322A1/en not_active Ceased
- 1994-06-27 BR BR9408596A patent/BR9408596A/pt not_active Application Discontinuation
- 1994-06-27 CA CA002193829A patent/CA2193829A1/en not_active Abandoned

Also Published As

Publication number	Publication date
CA2193829A1 (en)	1996-01-04
WO1996000322A1 (en)	1996-01-04
DE69416329D1 (de)	1999-03-11
FI965207A7 (fi)	1997-02-21
FI965207A0 (fi)	1996-12-23
EP0739434B1 (en)	1999-01-27
EP0739434A1 (en)	1996-10-30
US5352332A (en)	1994-10-04
BR9408596A (pt)	1997-08-19

Publication	Publication Date	Title
FI965207L (fi)	1997-02-21	Parannettu menetelmä valkaisulaitoksen suodatteen palauttamiseksi kiertoon
FI913930A7 (fi)	1992-02-23	Menetelmä massan käsittelemiseksi
DK0533752T3 (da)	1998-06-02	Forbedret syntesefremgangsmåde
HU9301428D0 (en)	1993-09-28	Method for separing fibres from composed materials
FI911908L (fi)	1991-10-24	Menetelmä valkaistaessa lignoselluloosapitoista ainetta
FI960145L (fi)	1996-01-12	Menetelmä sellun valmistamiseksi
DK0488486T3 (da)	1996-02-19	Fremgangsmåde til fremstilling af pulp
FI944928A0 (fi)	1994-10-20	Menetelmä kemiallisen paperimassan valkaisemiseksi
FI920493A7 (fi)	1992-08-07	Menetelmä kasvikuitumateriaalin delignifioimiseksi
FI950526L (fi)	1995-02-07	Massan valkaisuun liittyvä menetelmä
FI932848A7 (fi)	1993-12-19	Menetelmä paperimassan valkaisemiseksi
FI911963A7 (fi)	1991-10-26	Menetelmä massan valkaisemiseksi
FI931710A7 (fi)	1993-10-16	Menetelmä siistatun massan valkaisemiseksi
FI904456A7 (fi)	1991-03-13	Menetelmä sellun valkaisemiseksi
DE59303535D1 (de)	1996-10-02	Geteilte Webmaschine
DE59307869D1 (de)	1998-02-05	Geteilte Webmaschine
FI900544A7 (fi)	1991-10-18	Menetelmä massan valmistamiseksi
FI921961A7 (fi)	1992-11-03	Menetelmä ksylaani- ja lignoselluloosapitoisten materiaalien valkaisemiseksi
FI942424L (fi)	1994-11-27	Parannettu menetelmä massan valkaisemiseksi
FI943333A7 (fi)	1995-01-17	Menetelmä lignoselluloosapitoisten kuitujen valkaisemiseksi
FI934705A7 (fi)	1994-04-30	Menetelmä lignoselluloosapitoisen massan valkaisemiseksi
FI922945A7 (fi)	1992-12-29	Menetelmä massan valkaisemisemiseksi
FI923798A7 (fi)	1992-08-24	Menetelmä massan valkaisemiseksi
KR950702184A (ko)	1995-06-19	페닐티오메틸피리디닐알케노에이트의 제조방법(Process for making phenylthi omethypyridinylalkenoates)
FI955805L (fi)	1995-12-01	Menetelmä valkolipeän valmistamiseksi