Specialized metallurgical processes – compositions for use therei – Processes – Producing or treating free metal
Reexamination Certificate
2005-08-23
2005-08-23
Andrews, Melvyn (Department: 1742)
Specialized metallurgical processes, compositions for use therei
Processes
Producing or treating free metal
C075S406000, C075S407000, C075S663000, C075S664000, C075S665000, C075S961000, C423S107000, C423S623000
Reexamination Certificate
active
06932853
ABSTRACT:
A method of operating mechanical separation devices at high temperatures to separate various volatile metals, metal halides and metal oxides to produce high purity materials.
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Bratina James E.
Fehsenfeld Fred M.
Andrews Melvyn
Butzel Long
Heritage Environmental Services LLC
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