Patent ID: 7678339
Filing Date: 2010-03-16
Classification: B01J

Abstract:
1. A vapourised flow quenching reactor for producing a fine-powder from one or more reactant materials comprising (1) first heat creating means selected from one of a DC plasma torch and RF plasma torch, said first heat creating means including (2) a first reaction chamber to receive said gaseous reactant stream from said reactant stream outlet of said first heat creating means wherein in said first reaction chamber said mixing and/or reaction of said reactant stream occurs, said first reaction chamber including an outlet for said reactant stream (3) a first convergent-divergent nozzle to receive via an inlet thereof said reactant stream from said outlet of said first reaction chamber to rapidly cool the reactant stream axially flowing there through, as a result of adiabatic and is entropic expansion of the reactant stream, said first convergent-divergent nozzle including an outlet for said reactant stream (4) a second reaction chamber including (5) a second convergent-divergent nozzle to receive via an inlet thereof said resultant reactant stream (resultant from said first and/or second reactant streams) from said outlet of said second reaction chamber to rapidly cool the resultant reactant stream axially flowing there through as a result of adiabatic and is entropic expansion of the resultant reactant stream, said second convergent-divergent nozzle including an outlet for said reactant stream (6) a collection chamber to receive material from said outlet of said second convergent-divergent nozzle.