C - Chemistry – Metallurgy – 01 – B
Patent
C - Chemistry, Metallurgy
01
B
23/195, 23/222,
C01B 21/06 (2006.01) C01B 21/064 (2006.01) C01B 21/068 (2006.01) C01B 21/072 (2006.01) C01B 21/076 (2006.01)
Patent
CA 2016122
ABSTRACT OF THE DISCLOSURE PRODUCTION OF NITROGEN COMPOUNDS A method for the production of a nitride of zirconium, hafnium, silicon, germanium, tin, lead, boron, aluminium, gailium, indium or thallium either alone or as mixtures is claimed. Ammonia and a halide of at least one of these elements are heated by means of a direct electric current plasma in a non-oxidising gas in a reactor in which recirculation is induced such that the defined recirculation ratio is greater than 2.5 and preferably greater than 4Ø Any titanium halide present shall be less then 40% by weight of mixed halides.
Blackburn Stephen Richard
Jones Anthony Gould
Sim & Mcburney
Tioxide Group Plc
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