REDUCTION OF ALUMINUM OXIDE IN
A NONEQUILIBRIUM HYDROGEN PLASMA

V. A. Lyubochko, V. V. Malikov,
O. G. Parfenov, and N. V. Belousova

UDC 541.14

A new method is proposed and experimental investigations 
are carried out aimed at reducing aluminum oxide in a nonequilibrium 
hydrogen plasma of a combined glow discharge (CGD) at a pressure of 
1315.8 - 13,158 Pa, a discharge current of 5 * 10 - 2 - 3 A, 
and a hydrogen flow rate of 10-6 - 10-4 nm3/sec. 
A high degree of conversion of the aluminum oxide (60%) with an energy 
consumption of 20 kW*h/kg of Al2O3 is attained. Reduction 
of metals from oxides and other compounds in a CGD nonequilibrium 
hydrogen plasma can be used for producing rare-earth and high-purity metals.

JEPTER7492020005
JEPTER749205