AC process for treating lead electrolysis refining anodic slime bearing high antimony and lower silv

In order to recover value elements copper, bismuth and antimony in lead electrolysis refining anodic slime bearing high antimony and lower silver comprehensive, the process route is as follows: from the solution leached drydistillation residue in AC process by water Cu, Bi and Cu were cemented with iron powders in two steps; copper was leached with a sulphuric acid solution from the residue, and bismuth was leached with dilution hydrochloric acid from the leached copper residue. The cemented ratio of Cu, Bi and Sb is 99.75%, 96.74% and 99.45% respectively, in the cemented residues containing Cu 62.26% and Bi 20.79%. The separation of copper from antimony and bismuth was realized by leaching copper with sulphate acid solution. Copper was used for production of copper suphate containing CuSO4·5H2O 93.74%～96.12% and Fe 1.13%～1.47% with recovery ratio of 93.33%. Direct recovery ratio of bismuth is 90.87% into a concentrate containing Bi of 69.70% and sum ratio is 94.73%. In addition, an antimony residue containing Sb of 36.21% was produced with recovery ratio of 94.06%.