WO2008065279A3 - Method for preparing alkali metal ferrates - Google Patents

Method for preparing alkali metal ferrates Download PDF

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Publication number
WO2008065279A3
WO2008065279A3 PCT/FR2007/001839 FR2007001839W WO2008065279A3 WO 2008065279 A3 WO2008065279 A3 WO 2008065279A3 FR 2007001839 W FR2007001839 W FR 2007001839W WO 2008065279 A3 WO2008065279 A3 WO 2008065279A3
Authority
WO
WIPO (PCT)
Prior art keywords
alkali metal
preparing alkali
iii
ferrates
mixture
Prior art date
Application number
PCT/FR2007/001839
Other languages
French (fr)
Other versions
WO2008065279A2 (en
Inventor
Cecile Boesinger
Nathalie Costarramone
Alain Castetbon
Original Assignee
Stradia
Cecile Boesinger
Nathalie Costarramone
Alain Castetbon
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.)
Filing date
Publication date
Application filed by Stradia, Cecile Boesinger, Nathalie Costarramone, Alain Castetbon filed Critical Stradia
Publication of WO2008065279A2 publication Critical patent/WO2008065279A2/en
Publication of WO2008065279A3 publication Critical patent/WO2008065279A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/0018—Mixed oxides or hydroxides
    • C01G49/0081—Mixed oxides or hydroxides containing iron in unusual valence state [IV, V, VI]
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/72—Treatment of water, waste water, or sewage by oxidation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection

Abstract

The invention relates to a method for preparing alkali metal ferrates, characterized in that it includes the following steps: (i) a mixture is prepared which includes at least one alkali or alkaline-earth metal hypochlorite, at least one iron salt, and at least one hydroxide of an alkali metal; (ii) an inert material in solid particle form is added to the mixture of (i); (iii) the compounds of (ii) are agitated and allowed to react; (iv) the reaction mixture obtained in (iii) is cooled so as to keep its temperature between 50°C and 90°C; (v) the formed alkali metal ferrate grains are recovered by sieving.
PCT/FR2007/001839 2006-11-08 2007-11-07 Method for preparing alkali metal ferrates WO2008065279A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0654776 2006-11-08
FR0654776A FR2908128B1 (en) 2006-11-08 2006-11-08 PROCESS FOR THE PREPARATION OF ALKALI METAL FERRATES

Publications (2)

Publication Number Publication Date
WO2008065279A2 WO2008065279A2 (en) 2008-06-05
WO2008065279A3 true WO2008065279A3 (en) 2008-07-31

Family

ID=38110404

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2007/001839 WO2008065279A2 (en) 2006-11-08 2007-11-07 Method for preparing alkali metal ferrates

Country Status (2)

Country Link
FR (1) FR2908128B1 (en)
WO (1) WO2008065279A2 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354843A1 (en) * 1988-08-09 1990-02-14 Socadour Process for the preparation of alkyl or alkaline earth ferrates by the solid phase
WO1991007352A1 (en) * 1989-11-08 1991-05-30 Centre International De L'eau De Nancy (Nan.C.I.E.) Ferrates of alcaline or alcaline earth metals, their preparation and industrial applications
WO2001028927A1 (en) * 1999-10-22 2001-04-26 Centre International De L'eau - Nan.C.I.E. Stabilised mixed ferrates and synthesis method thereof
WO2003042106A1 (en) * 2001-11-16 2003-05-22 Covalsud Sarl Method for preparing alkali metal ferrates and novel alkali metal ferrate granules

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0354843A1 (en) * 1988-08-09 1990-02-14 Socadour Process for the preparation of alkyl or alkaline earth ferrates by the solid phase
WO1991007352A1 (en) * 1989-11-08 1991-05-30 Centre International De L'eau De Nancy (Nan.C.I.E.) Ferrates of alcaline or alcaline earth metals, their preparation and industrial applications
WO2001028927A1 (en) * 1999-10-22 2001-04-26 Centre International De L'eau - Nan.C.I.E. Stabilised mixed ferrates and synthesis method thereof
WO2003042106A1 (en) * 2001-11-16 2003-05-22 Covalsud Sarl Method for preparing alkali metal ferrates and novel alkali metal ferrate granules
EP1446357A1 (en) * 2001-11-16 2004-08-18 Covalsud SARL Method for preparing alkali metal ferrates and novel alkali metal ferrate granules

Also Published As

Publication number Publication date
FR2908128A1 (en) 2008-05-09
FR2908128B1 (en) 2009-01-30
WO2008065279A2 (en) 2008-06-05

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