| abstract |
The invention belongs to the technical field of metallurgy, and in particular relates to a method for recovering sulphur rhenium and arsenic harmless disposal from arsenic sulphide slag. The method includes four steps of oxygen pressure acid leaching, thermal filtration, selective arsenic precipitation and rhenium adsorption. In this method, arsenic is preferentially precipitated, and the reaction conditions are well controlled in the precipitation process, so that the loss of rhenium in the process of arsenic precipitation is very small, so that arsenic and rhenium are separated, and the separated solution is improved by improving the resin to improve the adsorption efficiency of rhenium, thereby Obtain high-purity rhenium products. Compared with other methods, the present invention solves the problem that arsenic and valuable metal copper rhenium cannot be completely separated, and realizes the stabilization of arsenic efficiently. The method of the invention can recover sulfur-rhenium from arsenic sulfide slag, and can also treat arsenic harmlessly, and has the advantages of environmental protection, economy, energy saving, high efficiency and high resource recovery rate. |