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AssigneeInco Limited
InventorsKenneth Coley, Armen Markarian, Shadi Saberi, Randy Shaubel, Rinaldo Stefan, Lloyd Timberg, Eric Wasmund
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A process for the production of extra fine spherical metal powders by chemical vapor deposition and dissolution techniques, including metal carbonyls, wherein the metal containing process gas is propelled upwardly through a heated reactor. By employing an upward gas flow as opposed to the conventional downward gas flow, a closer approximation of theoretical plug-flow velocity profiles are achieved thusly resulting in a desirably narrower size particle distribution obviating or reducing the need for subsequent classification techniques.
A process for producing metal powders, the process comprising:
The process according to claim 7 wherein the metal carbonyl is selected from the group consisting of one or more of nickel carbonyl, iron carbonyl, and cobalt carbonyl.
An improved method for producing extra fine metal powders by chemical vapor deposition wherein the improvement comprises propelling a metal containing processing gas upwardly through a heated reactor in an at least an approximate plug flow velocity profile thusly reducing inconsistent particle residence times within the reactor.
Dependencies are inferred from the claim text.