Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1998-05-12
1999-08-10
Andrews, Melvyn
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 1021, 75399, 420590, C22B 404, C22B 406
Patent
active
059352930
ABSTRACT:
A fast quench reaction includes a reactor chamber having a high temperature heating means such as a plasma torch at its inlet and a means of rapidly expanding a reactant stream, such as a restrictive convergent-divergent nozzle at its outlet end. Metal halide reactants are injected into the reactor chamber. Reducing gas is added at different stages in the process to form a desired end product and prevent back reactions. The resulting heated gaseous stream is then rapidly cooled by expansion of the gaseous stream.
REFERENCES:
patent: 4561883 (1985-12-01), Mullner
patent: 4801435 (1989-01-01), Tylko
patent: 5749937 (1998-05-01), Detering et al.
Berry Ray A.
Detering Brent A.
Donaldson Alan D.
Fincke James R.
Kong Peter C.
Andrews Melvyn
Lockheed Martin Idaho Technologies Company
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