Patent ID: 9370851
Filing Date: 2016-06-21
CPC Classification: B24B,C25B,H01M,Y02E,Y02W

Claim Text:
1. A method for obtaining a carbon electrode from acid battery wastes, wherein the method comprises the steps of: a) extracting the carbon electrode from the acid battery wastes, and then removing a covering from the carbon electrode; b) boiling the carbon electrode in distilled water; c) washing the carbon electrode with detergent; d) sanding and washing the carbon electrode with boiling water and then with detergent until no more residue is obtained; e) sonicating the carbon electrode in distilled water; f) subjecting the carbon electrode to washing with petroleum ether or some other nonpolar solvent; g) sonicating and washing the carbon electrode with organic solvents from low to high polarity, ending with washing with water and changing said water that was used for washing until clean water is obtained; h) boiling the carbon electrode in a solution that contains a strong oxidant at acid pH; i) repeating the sonicating and washing procedure according to step g) if necessary; and j) polishing the carbon electrode for use.