Research and development of obtaining scandium from waste cake by aluminothermal method

To study and obtain scandium, we used technogenic waste (waste cake) from the Kadamzhai antimony plant. For the experiment, we took 0.05 μm enriched fine fraction of the cake. To carry out the aluminothermic reaction, we weighed 90 g of enriched cake and 10 g of aluminum powder on technical scales. To obtain scandium, we used a quartz crucible as a reactor, since the reaction in it does not pollute the obtained product, the reaction will begin at 810° C. Complete recovery of scandium occurs at 935° C, in 7-8 minutes. For the aluminothermic reaction, we used enriched cake from the Kadamzhai antimony plant.