Method for synergistically preparing cementing material by overall detoxification of secondary aluminum ash of cyanidation tailings

The invention belongs to the technical field of comprehensive utilization of resources and environmental protection and treatment, and relates to a method for synergistically preparing a cementing material through integral detoxification of cyanidation tailings and secondary aluminum ash. The method comprises the following steps: carrying out partial decyanation treatment on cyanidation tailings by utilizing sulfur dioxide tail gas through an inconel method to obtain decyanation tailings; and mixing the decyanation tailings with desulfurized gypsum, secondary aluminum ash and a correction material, and calcining to obtain a sulphoaluminate cementing material clinker and the sulfur dioxide tail gas. The method provided by the invention not only can realize integral detoxification of the secondary aluminum ash of the cyanidation tailings and simultaneously prepare the cementing material, but also can recover noble metals in the cyanidation tailings, so that the cyanidation tailings and the secondary aluminum as