Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby
AssigneesPosco, Research Institute of Industrial Science & Technology
InventorsGil-Soo HAN, Hyung-Sub EOM, Jin-Gyun PARK
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Abstract
The present invention relates to a method for manufacturing a needle-shaped or rod-shaped porous iron powder. Specifically, the present invention provides a method for manufacturing a needle-shaped or rod-shaped porous iron and a needle-shaped or rod-shaped porous iron powder manufactured thereby, the method comprising the steps of: preparing a ferrous chloride dehydrate by concentrating a ferrous chloride aqueous solution; solid-liquid separating the ferrous dichloride to prepare ferrous chloride dehydrate powder; oxidizing the ferrous chloride dehydrate powder; and reducing the oxidized ferrous chloride powder.
Claims10
A method for manufacturing a needle-shaped or rod-shaped porous iron powder, the method comprising:
- concentrating a ferrous chloride aqueous solution to prepare a ferrous chloride dihydrate;
- subjecting the ferrous chloride dihydrate to a solid-liquid separation to prepare a ferrous chloride dihydrate powder;
- oxidizing the ferrous chloride dihydrate powder;
- and
- reducing the oxidized ferrous chloride dehydrate powder.
Dependencies are inferred from the claim text.