Method for removing arsenic in tungsten smelting waste slag

The invention discloses a method for removing arsenic in tungsten smelting waste slag. The method comprises the steps that (1), the tungsten smelting waste slag and sodium salt are mixed, and a mixedmaterial is obtained; (2), calcining treatment is conducted on the mixed material, and a calcined material is obtained; (3), the calcined material is levigated and then mixed with water, solid-liquidseparation is conducted, and arsenic-containing liquid and dearsenization slag are obtained; and (4), ion exchange treatment is conducted on the arsenic-containing liquid, and tungsten-containing stripping liquid and arsenic-containing after-exchange liquid are obtained. According to the method, the content of arsenic in the tungsten smelting waste slag can be decreased to be not higher than 0.1%,and the significant economic benefit and environmental benefit are achieved. 本发明公开了一种钨冶炼废渣除砷的方法。该方法包括：(1)将钨冶炼废渣与钠盐混合，得到混合物料；(2)将所述混合物料进行煅烧处理，得到煅烧物料；(3)将所述煅烧物料磨细后与水混合，并进行固液分离，得到含砷液和脱砷渣；(4)将所述含砷液进行离子交换处理，得到含钨解吸液和含砷交后液。该方法可将钨冶炼废渣