Abstract Scope |
Selenium (Se) plays a critical role in a series of future high-tech applications such as energy and optoelectronic fields because of its excellent semiconductor characteristics. copper electrolytic refining anode slime is the most important raw material for selenium extraction. When the sulfurized calcination treatment of copper anode slime, the selenium volatilizes as the form of SeO2 flue gas and then reduced by SO2 into a crude elemental selenium. In this process, the high toxicity mercury would entere into the crude selenium at the same time. Current processes are constrained by complex procedures, serious pollution, and ineffectiveness. This study provides an efficient and environmentally friendly process to remove high toxicity elements and purify selenium from high-value hazardous selenium material, and extract high-purity selenium for further use, which has important industrial applications. |