A process and apparatus for preparing a nanopowder are presented. The process comprises feeding a reactant material into a plasma reactor in which is generated a plasma flow having a temperature sufficiently high to vaporize the material; transporting the vapour by means of the plasma flow into a quenching zone; injecting a preheated quench gas into the plasma flow in the quenching zone to form a renewable gaseous condensation front; and forming a nanopowder at the interface between the renewable controlled temperature gaseous condensation front and the plasma flow.
申请公布号
CA2581806(C)
申请公布日期
2012.06.26
申请号
CA20072581806
申请日期
2007.03.08
申请人
TEKNA PLASMA SYSTEMS INC.
发明人
BOULOS, MAHER I.;JUREWICZ, JERZY;GUO, JIAYIN;FAN, XIAOBAO;DIGNARD, NICOLAS