A process for the production of a metal which comprises: carbothermal reduction of the corresponding metal oxide to produce a mixed gas stream comprising the metal and carbon monoxide; maintaining the mixed gas stream at a suitably elevat-ed temperature to prevent reformation of the metal oxide; ejecting the mixed gas stream through a convergent-divergent nozzle in order to cool the mixed gas stream instantaneously to a temperature at which reformation of the metal oxide cannot take place; and separating and collecting the metal, wherein the nozzle is heated by means other than gas flow through the nozzle so that tempera-ture of surfaces of the nozzle in contact with the mixed gas stream are maintained at a temperature sufficient to prevent deposition on the said surfaces of products from the gas stream.
申请公布号
CA2731670(C)
申请公布日期
2016.08.23
申请号
CA20092731670
申请日期
2009.07.31
申请人
COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION
发明人
TASSIOS, STEVEN;BARTON, TIMOTHY RAYMOND DOUGLAS;NAGLE, MICHAEL WILSON;CONSTANTI-CAREY, KERI KOULLA;PRENTICE, LEON HUGH