RECYCLING OF LEAD PLATES WITH ACTIVE MASS OF USED ACCUMULATORS Russian patent published in 2008 - IPC C25C1/18 C22B7/00 

FIELD: electro-chemistry.

SUBSTANCE: invention is related to the sphere of electro-chemical industries and is the method of recycling of lead plates with active mass of used accumulators. Method includes electrochemical dissolution of lead in electrolyte solution and it extraction from electrolyte. As electrolyte, solution of acetic acid is used with additives of nitric acid. Electrochemical dissolution is performed until dissolved lead concentration in electrolyte solution reaches 350-450 g/l, then the solution is separated from the insoluble residue, and the lead is extracted from the solution as end product - tribasic lead sulfate by settling with concentrated sulfuric acid. After depositing of lead, electrolyte is again sent for dissolution of lead plates.

EFFECT: provides ecological safety of process by means of using non-toxic components, high capacity and wastelessness of technology.

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