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US 7,115,242 B2Granted
Method for the synthesis of ferrates
AssigneeInertec
InventorsJean-Yves Cojan, David Verschuere, Farouk Tedjar
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Abstract
A method of synthesis of alkali metal ferrates and alkaline earth metal ferrates, in which a trivalent iron compound is mixed with potash and optionally persulphate, and the mixture is heated at a temperature in the range of about 250 to about 500° C. for about 1 to 10 hours. The invention also relates to the use of the ferrates obtained by this method.
Claims17
A method of synthesis of alkali metal ferrates and alkaline earth metal ferrates, comprising the steps of:
- a) mixing a trivalent iron compound with potash and a persulphate;
- and
- b) heating the mixture at a temperature in the range of about 250 to about 500° C. for about 1 to 10 hours.
A method of synthesis of alkali metal ferrates and alkaline earth metal ferrates, comprising the steps of:
- a) mixing a trivalent iron compound with potash;
- b) heating the mixture of step a) at a temperature in the range of about 250 to about 350° C. for about 1 to 5 hours;
- c) adding a persulphate to the heated mixture;
- and
- d) heating the product of step c) at a temperature in the range of about 375 to about 500° C. for about 1 to 5 hours.
2 more elements
Dependencies are inferred from the claim text.