Plasma reduction processing of materials

Details Plasma reduction processing of materials Plasma reduction processing of materials

2007-06-12

2007-06-12

Wyszomierski, George P. (Department: 1742)

Specialized metallurgical processes, compositions for use therei

Processes

Producing or purifying free metal powder or producing or...

Reexamination Certificate

active

10433356

ABSTRACT:
In a process for the reduction of a metalliferous ore or concentrate the ore or concentrate is first prepared into a particulate form. A reaction chamber (3, 103, 203, 301, 401, 503, 603, 702) is then charged with ore or concentrate, a reductant and an input gas. The reaction chamber (3, 103, 203, 301, 401, 503, 603, 702) is irradiated with electromagnetic radiation within a frequency range of30MHz to300GHz until a non-equilibrium plasma is initiated. The plasma is sustained and controlled with the radiation until the ore or concentrate is reduced to form reduction product.

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