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US 2020/0270145 A1Published application
Acidic ferrate composition and methods of making ferrate
AssigneePhosphorus Free Water Solutions, LLC
InventorsDonald A. Luke, Ruben D. Durand-Diaz, Brent Canham, David Velazquez Torres
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Abstract
Various embodiments relate to an acidic ferrate composition and methods of making ferrate. A method of forming ferrate includes treating an iron source with an oxidizer in an aqueous solution having a pH of less than 7 under conditions sufficient to form ferrate.
Claims20
A method of making ferrate, the method comprising:
- treating an iron source with an oxidizer in an aqueous solution having a pH of less than 7 under conditions sufficient to form ferrate.
A method of making ferrate, the method comprising:
- treating ferric chloride with an oxidizer in an aqueous solution comprising HCl and having a pH of about 1 to about 5 under conditions sufficient to form ferrate, wherein the ferric chloride and the oxidizer have a molar ratio of about 1:1 to about 1:3.
A method of making ferrate, the method comprising:
- treating ferric chloride with potassium permanganate in an aqueous solution under conditions sufficient to form ferrate.
An aqueous ferrate composition comprising:
- ferrate ([FeO4]2−), the aqueous ferrate composition having a pH of less than 7.
An aqueous ferrate composition comprising:
- ferrate ([FeO4]2−), the aqueous ferrate composition having a pH of about 1.5 to about 3, wherein the ferrate is about 200,000 to about 400,000 ppm of the aqueous ferrate composition, wherein the ferrate retains at least 50% of its oxidative activity, on a mass basis, after about 5 to about 7 days at room temperature.
Dependencies are inferred from the claim text.