Reduction of iron oxide utilizing dehydrating agent
 Highly orientable acicular iron particles are made by reducing an acicular ferric oxide in powder form by contacting the granular acicular ferric oxide with hydrogen in the presence of a dehydrating agent selected from calcium hydride, calcium, calcium carbide, and mixtures thereof. 
Ampex Corporation
H B
H01F B22F
inventional inventional
Yu C. Lawrence M. Irving
Lee Scott Wolf