The project construction was started in June 2016 and was completed in 2017. It has an important demonstration and benchmarking effect on the comprehensive design and implementation of copper smelting projects.

Innovation and optimization of process design: The integrate process of  hydrometallurgy  and pyrometallurgy is applied to process high-value anode slime rich in precious metals such as gold and silver with the capacity of 800t/a. The anode slime is filtered by a filter press. The filter residue is naturally oxidized before  2-    stage concentrated sulfuric acid slurring and then sent to calcinations operation. The selenium dioxide in the off-gas is reduced by sulfur dioxide to produce crude selenium. The calcine is hot dipped . And active copper powder and copper wire is used for replacing silver in leachate. The products include crude selenium powder, crude silver powder, pretreatment slag and valuable metals such as gold, silver and selenium are effectively recovered.