Method for treating lead plaster through low-temperature reduction roasting

The invention belongs to the field of secondary resource recovery treatment, and discloses a method for treating lead plaster through low-temperature reduction roasting, which comprises the following steps: carrying out low-temperature reduction roasting on lead plaster and iron disulfide in an inert atmosphere to obtain a roasted product, grinding the roasted product, and carrying out magnetic separation to obtain lead sulfide and ferrous sulfide. The lead plaster reacts with iron disulfide to generate metal sulfide, lead sulfate phase is converted into lead sulfide, separation of lead sulfide and ferrous sulfide is achieved through magnetic separation, the purpose of efficiently treating the lead plaster is achieved, lead sulfide directly enters a lead smelting system, ferrous sulfide can be used as a flux in the pyrometallurgy process, and energy is saved. The conversion rate of lead sulfide can reach 97% or above, the technological process is short, and operation is easy. 本发明属于二次资源回收处理领域，公开了一种低温还原焙烧处理铅膏的方