HIGHLY ACTIVE SILVER CATHODE, PREPARATION OF SAME AND USE TO MAKE 2,3,5-TRICHLOROPYRIDINE AND/OR 2,3,5,6-TETRACHLOROPYRIDINE

摘要

A highly active cathode, having utility for electrolytic reduction of 2,3,5,6-tetrachloropyridine to 2,3,5-trichloropyridine, comprises a wet, immobilized layer of aggregated silver microcrystals, formed by the electrolytic reduction of colloidal, silver oxide particles in the presence of water and hydroxyl ions.