Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...
Reexamination Certificate
2008-03-18
2008-03-18
Wyszomierski, George P. (Department: 1793)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or purifying free metal powder or producing or...
C075S367000
Reexamination Certificate
active
10933719
ABSTRACT:
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.
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Coley Kenneth Stark
Markarian Armen
Saberi Shadi
Shaubel Randy
Stefan Rinaldo A.
Inco Limited
Steen Edward A.
Wyszomierski George P.
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