Specialized metallurgical processes – compositions for use therei – Processes – Producing or purifying free metal powder or producing or...
Reexamination Certificate
2003-06-19
2009-06-09
Mc Ginty, Douglas (Department: 1796)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or purifying free metal powder or producing or...
C075S330000, C075S351000, C075S363000, C075S370000, C075S753000, C252S500000
Reexamination Certificate
active
07544229
ABSTRACT:
The present invention discloses a novel method for the production of metallic nano-powder. This cost-effective, simple process is customized for a full-scale production of metallic nano-powders containing a first metal, and comprising the following of forming an alloy comprising said first metal and at least one soluble metal; applying first thermal treatment in the manner homogenized alloy is obtained; applying a cold work to the homogenized alloy so thin strips are obtained; applying a second thermal treatment to the alloy until a phase composition of predetermined characteristics is obtained; subjecting the said alloy to a leaching agent adapted to effectively leach out the least one soluble metal; filtering and washing the powder; washing the powder; drying the powder; coating the powder with chemicals; and then de-agglomerating the coated powder. The present invention also discloses a cost-effective and highly pure metallic powder produced by the method defined above.
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De La Vega Fernando
Garbar Arkady
Matzner Einat
Cima NanoTech Israel Ltd.
Fish & Richardson P.C.
Ginty Douglas Mc
Nguyen Tri V
LandOfFree
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