| abstract |
The invention provides a method for directly preparing metallic lead from lead-containing materials through solid-phase reaction, which includes: step 1, adding the lead-containing materials to be treated into a grinder, and adding metal substances and water into the grinder, the The activity of metal substances is greater than that of lead; using a grinder through mechanical force, the lead-containing material and the metal substance directly undergo a solid-state reaction to obtain a reaction product; step 2, wash and filter the reaction product to obtain metallic lead and metal substances The corresponding metal salt solution; step 3, melting and casting metallic lead to obtain crude lead; crystallizing the metal salt solution to obtain the metal salt corresponding to the metal substance. Compared with the existing fire and wet processes for treating lead-containing materials, the method for preparing metallic lead in the present invention has the characteristics of short flow, few procedures, large processing capacity, and low energy consumption cost. At the same time, the present invention can meet the requirements of clean production environmental requirements. |