Iron powder product with high specific surface area
A porous iron powder consisting essentially of a reduced iron powder having a specific surface area above 3000 m2/kg. The reduced iron powder is ferric oxide in a hydrogen environment and mechanical fluid bed operating at barometric pressure. The hydrogen environment has a pH 2 /pH 2 O ratio above 2.3. The reduced iron powder is ferric oxide produced by roasting of a solution of ferrous chloride. The end-product particle size is between 1 and 45 microns and has an in-vitro dissolution rate of 100% in at most twenty minutes.
1 . A porous iron powder consisting essentially of a reduce iron powder having a specific surface area above 3000 m2/kg.
2 . The porous iron powder of claim 1 , wherein said reduced iron powder is ferric oxide in a hydrogen environment and mechanical fluid bed operating at barometric pressure.
3 . The porous iron powder of claim 2 , wherein said hydrogen environment has a pH2/pH2O ratio above 2.3.
4 . The porous iron powder of claim 1 , wherein said reduced iron powder is ferric oxide produced by roasting of a solution of ferrous chloride.
5 . The porous iron powder of claim 1 , wherein a particle size is between 1 and 45 microns.
6 . A porous iron powder consisting essentially of a reduced iron powder having an in-vitro dissolution rate of 100% in at most twenty minutes.
7 . The porous iron powder of claim 6 , wherein said reduced iron powder is ferric oxide in a hydrogen environment and mechanical fluid bed operating at barometric pressure.
8 . The porous iron powder of claim 7 , wherein said hydrogen environment has a pH2/pH2O ratio above 2.3.
9 . The porous iron powder of claim 6 , wherein said reduced iron powder is ferric oxide produced by roasting of a solution of ferrous chloride.
10 . The porous iron powder of claim 6 , wherein a particle size is between 1 and 45 microns.