FI20075317L - Ditioniitin valmistusmenetelmä - Google Patents

Ditioniitin valmistusmenetelmä Download PDF

Info

Publication number: FI20075317L
Authority: FI; Finland
Prior art keywords: dithionite; preparation; dithionite preparation
Prior art date: 2007-05-04

Application number

FI20075317A

Other languages

English (en)

Swedish (sv)

Other versions

FI121114B (fi

FI20075317A0 (fi

Inventor

Risto Rahkola

Original Assignee

Kemira Oyj

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.)

2007-05-04

Filing date

2007-05-04

Publication date

2008-11-05

2007-05-04 Application filed by Kemira Oyj filed Critical Kemira Oyj

2007-05-04 Priority to FI20075317A priority Critical patent/FI121114B/fi

2007-05-04 Publication of FI20075317A0 publication Critical patent/FI20075317A0/fi

2008-04-25 Priority to PCT/FI2008/050225 priority patent/WO2008135631A1/en

2008-04-25 Priority to AT08761628T priority patent/ATE521571T1/de

2008-04-25 Priority to EP08761628A priority patent/EP2150489B1/en

2008-04-25 Priority to CA2684688A priority patent/CA2684688C/en

2008-04-25 Priority to US12/598,457 priority patent/US7993622B2/en

2008-04-30 Priority to CL2008001252A priority patent/CL2008001252A1/es

2008-11-05 Publication of FI20075317L publication Critical patent/FI20075317L/fi

2010-07-15 Application granted granted Critical

2010-07-15 Publication of FI121114B publication Critical patent/FI121114B/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
- D21C9/1084—Bleaching ; Apparatus therefor with reducing compounds
- D21C9/1089—Bleaching ; Apparatus therefor with reducing compounds with dithionites
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B17/00—Sulfur; Compounds thereof
- C01B17/64—Thiosulfates; Dithionites; Polythionates
- C01B17/66—Dithionites or hydrosulfites (S2O42-)
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/07—Preparation from the hydroxides

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Inorganic Chemistry (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Wood Science & Technology (AREA)
Materials Engineering (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Compounds Of Unknown Constitution (AREA)
Polysaccharides And Polysaccharide Derivatives (AREA)
Saccharide Compounds (AREA)

FI20075317A 2007-05-04 2007-05-04 Ditioniitin valmistusmenetelmä FI121114B (fi)

Priority Applications (7)

Application Number	Priority Date	Filing Date	Title
FI20075317A FI121114B (fi)	2007-05-04	2007-05-04	Ditioniitin valmistusmenetelmä
PCT/FI2008/050225 WO2008135631A1 (en)	2007-05-04	2008-04-25	Method for preparing dithionite
AT08761628T ATE521571T1 (de)	2007-05-04	2008-04-25	Verfahren zur herstellung von dithionit und seine verwendung
EP08761628A EP2150489B1 (en)	2007-05-04	2008-04-25	Method for preparing dithionite and use thereof
CA2684688A CA2684688C (en)	2007-05-04	2008-04-25	Method for preparing dithionite
US12/598,457 US7993622B2 (en)	2007-05-04	2008-04-25	Method for preparing dithionite
CL2008001252A CL2008001252A1 (es)	2007-05-04	2008-04-30	Metodo para preparar una solucion de ditionita, donde bisulfito de sodio es reducido con una solucion de borohidruro de sodio, y se previene la elevacion del ph con dioxido de carbono.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FI20075317A FI121114B (fi)	2007-05-04	2007-05-04	Ditioniitin valmistusmenetelmä
FI20075317		2007-05-04

Publications (3)

Publication Number	Publication Date
FI20075317A0 FI20075317A0 (fi)	2007-05-04
FI20075317L true FI20075317L (fi)	2008-11-05
FI121114B FI121114B (fi)	2010-07-15

Family

ID=38069485

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI20075317A FI121114B (fi)	2007-05-04	2007-05-04	Ditioniitin valmistusmenetelmä

Country Status (7)

Country	Link
US (1)	US7993622B2 (fi)
EP (1)	EP2150489B1 (fi)
AT (1)	ATE521571T1 (fi)
CA (1)	CA2684688C (fi)
CL (1)	CL2008001252A1 (fi)
FI (1)	FI121114B (fi)
WO (1)	WO2008135631A1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FI121114B (fi)	2007-05-04	2010-07-15	Kemira Oyj	Ditioniitin valmistusmenetelmä
CN103485212B (zh) *	2013-09-04	2016-05-11	北京泛博化学股份有限公司	利用拔色剂拔色的方法
EP2924166A1 (de)	2014-03-25	2015-09-30	Basf Se	Verfahren zur Herstellung von gebleichtem Holzfaserstoff

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US1472828A (en) *		1923-11-06		Apparatus fob making hydeosulphites
US791675A (en) *	1903-07-06	1905-06-06	Louis Descamps	Process of making hydrosulfites.
EP0027369A1 (en) *	1979-10-12	1981-04-22	Thiokol Corporation	Stable precursor solution for the generation of hydrosulfite and use thereof in bleaching wood pulp, brightening kaolin clay and reducing vat dyestuffs to their leuco form
US4788041A (en)	1986-12-22	1988-11-29	Morton Thiokol, Inc.	Apparatus for the production of sodium hydrosulfite
SE457647B (sv)	1987-06-24	1989-01-16	Eka Nobel Ab	Saett vid blekning av material med ditionitloesning
US5094833A (en) *	1989-01-05	1992-03-10	Morton International, Inc.	High yield sodium hydrosulfite generation
US5098679A (en) *	1990-12-21	1992-03-24	Olin Corporation	Purification of alkali metal hydrosulfite solutions
SE468644B (sv) *	1991-05-24	1993-02-22	Sunds Defibrator Ind Ab	Framstaellning av kemitermomekanisk massa samt impregneringsloesning innehaallande borhydrid och sulfit
GB9212926D0 (en) *	1992-06-18	1992-07-29	Morton Int Inc	Method of bleaching paper pulp
AU4271596A (en) *	1995-12-19	1997-07-14	Kvaerner Hymac Inc.	Process for treating refiner pulp
FI102911B (fi)	1997-06-13	1999-03-15	Aga Ab	Menetelmä massasuspension pH:n stabiloimiseksi ja paperin tuottamiseks i stabiloidusta massasta
DE60301446T2 (de) *	2002-06-28	2006-06-14	Rohm & Haas	Verfahren zur Aufhellung von Pulpe mit Hydrosulfitlösung
DE60326113D1 (de) *	2002-11-05	2009-03-26	Rohm & Haas	Verfahren zum Bleichen von mechanischer Pulpe
FI20030928L (fi)	2003-06-19	2004-12-20	Kvaerner Power Oy	Menetelmä mekaanisen massan valkaisussa käytettävän natriumditioniitin valmistamiseksi
FI121114B (fi)	2007-05-04	2010-07-15	Kemira Oyj	Ditioniitin valmistusmenetelmä

2007
- 2007-05-04 FI FI20075317A patent/FI121114B/fi not_active IP Right Cessation
2008
- 2008-04-25 EP EP08761628A patent/EP2150489B1/en not_active Not-in-force
- 2008-04-25 WO PCT/FI2008/050225 patent/WO2008135631A1/en not_active Ceased
- 2008-04-25 CA CA2684688A patent/CA2684688C/en not_active Expired - Fee Related
- 2008-04-25 US US12/598,457 patent/US7993622B2/en not_active Expired - Fee Related
- 2008-04-25 AT AT08761628T patent/ATE521571T1/de not_active IP Right Cessation
- 2008-04-30 CL CL2008001252A patent/CL2008001252A1/es unknown

Also Published As

Publication number	Publication date
US20100181531A1 (en)	2010-07-22
ATE521571T1 (de)	2011-09-15
EP2150489A1 (en)	2010-02-10
FI121114B (fi)	2010-07-15
US7993622B2 (en)	2011-08-09
WO2008135631A1 (en)	2008-11-13
CA2684688A1 (en)	2008-11-13
CL2008001252A1 (es)	2008-11-14
EP2150489B1 (en)	2011-08-24
FI20075317A0 (fi)	2007-05-04
CA2684688C (en)	2015-03-31
EP2150489A4 (en)	2010-06-30

Publication	Publication Date	Title
BRPI0814359A2 (pt)	2015-08-11	Método
BRPI0817226A2 (pt)	2015-06-16	Método
BRPI0817726A2 (pt)	2015-03-31	Método
LU92600I2 (fr)	2015-11-24	Sovaldi (sofosbuvir)
BRPI0807453A2 (pt)	2014-05-20	Preparação sólida
BRPI0821573A2 (pt)	2016-08-09	benzofuropirimidonas
ATE501136T1 (de)	2011-03-15	Imidazopyridinone
DE502007001207D1 (de)	2009-09-10	Elektrosaugkopf
ATE514696T1 (de)	2011-07-15	Diphenyl-dihydro-imidazopyridinone
DE112008003636A5 (de)	2010-10-21	Mehrzuggruppierer
DK3216802T3 (da)	2021-01-04	Produktionsfremgangsmåde
DK2125048T3 (da)	2014-10-13	Præparat
BRPI0907122A2 (pt)	2015-07-14	Piridoindóis (1-azinona) substituídos
BRPI0811451A2 (pt)	2014-11-04	Exopolissacarídeo
BRPI0814519A2 (pt)	2014-09-30	Organopolissiloxano
BRPI0815547A2 (pt)	2015-02-10	Depsipeptídeos cícliocos
BRPI0812840A2 (pt)	2014-12-09	2-imidazolinas
BRPI0911625A2 (pt)	2015-08-04	Métodos
AT505058A3 (de)	2008-12-15	Türschliesssystem
BRPI0812994A2 (pt)	2014-12-23	Microbiocidas
BRPI0809678A2 (pt)	2014-10-07	Métodos
DE112008000295A5 (de)	2009-10-29	Steckerstift
DE112008001216A5 (de)	2010-02-04	Magnetronplasmaanlage
DE112008003094A5 (de)	2010-08-12	Geomatte
DE112008003196A5 (de)	2011-02-03	Handpipettiergerät

Legal Events

Date	Code	Title	Description
2010-07-15	FG	Patent granted	Ref document number: 121114 Country of ref document: FI
2018-12-04	MM	Patent lapsed

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2010-07-15

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