US 5,670,065 A · Apparatus for plasma treatment of fine grained materials

Abstract

"An apparatus for plasma treating fine-grained materials, having a receptacle that can be evacuated and that accepts and agitates the materials to be treated, and having an electromagnetic device that comprises an excitation device and electrodes and to activate a process gas filling the space of the receptacle means to form a plasma, wherein the receptacle has a conveyor which conveys the material from one end to another end and is configured for continuous admission and discharge of the material and admission and discharge of the process gas, but that is otherwise hermetically closed, and at which or in which the electromagnetic excitation device that effects the plasma formation within the conveyor is arranged."

Claims18

Dependent claims

An apparatus for plasma treating fine-grained materials, comprising:

a receptacle that can be evacuated and that accepts and agitates fine-grained material to be treated under hermetically sealed conditions, the receptacle including a conveyor which conveys the material from one end of the receptacle to another end of the receptacle;
means for continuously admitting the material into the receptacle;
means for continuously discharging treated material from the receptacle;
means for admitting process gas into the receptacle;
means for discharging process gas from the receptacle;
and
electromagnetic means for igniting a plasma gas to form a plasma, the electromagnetic means comprising excitation means and electrodes, the excitation means being postioned along the conveyor.

4 more elements

Dependencies are inferred from the claim text.

Apparatus for plasma treatment of fine grained materials

Life of this patent

Apparatus for plasma treatment of fine grained materials

Life of this patent

Abstract

Claims18