Influence of leaching parameters on the vanadium extraction from petroleum coke

More than 60 trace elements, including rare metals, can be found in heavy oils. The most valuable component of oils and petroleum products is vanadium. It used as an alloying agent to create extra strong steel, a cathode for lithium-ion batteries, also catalyst the chemical industry. Nowadays studies various methods extracting vanadium from are actively carried out. This work presents method alkaline acid leaching coke results examination influence factors such duration process (0.5, 1.5 2.5 h) ratio solid liquid phases (1:2, 1:3 1:4). highest yield 80% observed using sulfuric with hours S/L = 1:4