Peculiarities of Synthesis of Cobalt Ferrite on a Solar Furnace

CoFe2O4 material with spinel structure of Fd3m syngony with unit cell parameter a = 8,39 Å can be obtained by the method of synthesis from melt on solar furnace. It is shown that such material is resistant to water vapor and has low water absorption. It is revealed that the mechanism of electrical conductivity of perovskite material of CoFe2O4 composition is electronic and associated with polaron hopping. An assumption is made that CoFe2O4 can be used as a catalyst for synthesis gas production. As a result of this work, the dependence of synthesis gas yield on the mass of the catalyst was obtained. At non-catalytic gasification of rice husk the yield of gaseous products amounted to 34 %, and solid residue was formed in the amount of 37 %. In case of catalytic gasification, an increase in gas phase yield up to 60 % was observed. Acceleration of the gasification process is also observed.