Patent ID: 7262384
Filing Date: 2007-08-28
Classification: B01J,B22F

Abstract:
1. A reaction vessel for synthesizing materials, comprising: (a) a generally cylindrical portion of the vessel having an inner wall connected to a first end and a second end; (b) an outlet coupled to the cylindrical portion at the first end, wherein the outlet is positioned substantially concentrically with the inner wall; (c) an inlet coupled to the cylindrical portion at or near the first end thereof, wherein the inlet is operable for flowing a gas into the reaction vessel tangentially along the inner wall to form an outer helical vortex flow along the inner wall toward the second end and an inner helical vortex flow toward the first end inside the outer helical vortex; (d) at least one feed inlet for supplying precursor material to the reaction vessel; and (e) a synthesizer for synthesizing particles of the desired material in suspension within the reaction vessel from the precursor material wherein the double helical vortex movements conveys particles of the desired material out the outlet.