Self-propargating high-temperature synthesis (SHS) of intermetallides
provides new means for preparation of highly-active skeletal metal catalysts
for hydrogenation of organic and inorganic compounds. Efficiency of the
nickel catalyst obtained from SHS intermetallides (specific surface -70
m2/g) is 2-4 times higher for olefines hydrogenation than common Raney
nickel catalysts with specific surface-90 m2/g. Hydrogen TPD method indicates
more amounts of active sites in the case of SHS metal nickel catalyst than
Raney nickel. The efficiency of the iron SHS skeletal catalyst for ammonia
synthesis is 2-10 times higher than that for a common furnace catalyst.
The activation energy of ammonia synthesis is much lower for the SHS catalysts
(175-185 kJ/m) than for the furnace catalysts (245-250 kJ/m). The efficiency
of SHS catalysts is comparable with the industrial catalysts of ammonia
synthesis.