×

Transferred-arc plasma reactor for chemical and metallurgical applications

  • US 4,519,835 A
  • Filed: 05/23/1984
  • Issued: 05/28/1985
  • Est. Priority Date: 07/30/1981
  • Status: Expired due to Term
First Claim
Patent Images

1. A process for high temperature treatment of feed material using a plasma reactor comprising a bottom portion forming a crucible for receiving molten material, a sleeve mounted on top of the crucible, a cathode assembly including a cathode mounted on top of the said sleeve and electrically insulated therefrom, means for injecting a plasma forming gas into the reactor adjacent to the cathode, an anode, and gas exit ports in the bottom portion of the reactor, comprising the steps of:

  • (a) mounting said anode in the crucible in contact with the molten material in the crucible but electrically insulated from the sleeve;

    (b) supplying feed material conveyed by a carrier gas near the top of said sleeve at a pressure such that the material is fed against the inner wall of the sleeve;

    (c) establishing a plasma arc between the cathode and anode via the molten material in the crucible to melt the feed material and to form a falling film of molten material on the inside wall of the sleeve which drops in the crucible underneath; and

    (d) tapping the molten material from the crucible.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×