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Process for the preparation of finely divided metal and ceramic powders

  • US 5,472,477 A
  • Filed: 04/22/1993
  • Issued: 12/05/1995
  • Est. Priority Date: 05/04/1992
  • Status: Expired due to Term
First Claim
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1. A process for the preparation of at least one of finely divided metal and ceramic powders by reacting at least one metal compound and at least one reagent in a gas phase (CVR) reaction at a reaction temperature, said at least one metal compound and said at least one reagent being separately introduced into a reactor as coaxial, laminar part currents at a temperature which is at least the reaction temperature, wherein the at least one metal compound and the at least one reagent are brought to reaction in the reactor in the gaseous state to produce at least one reaction product which is condensed directly from the gas phase while excluding any wall reaction and further wherein the at least one reaction product, comprising said at least one of finely divided metal and ceramic powders, is subsequently separated from any remaining reagents after said reaction.

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