Abstract: Based on the investigation of roasting oxide copper-cobalt ore with ammonium chloride, leaching, precipitating and recycling ammonium chloride, a new method of recovery of Co and Cu from oxide copper-cobalt ore was proposed to achieve the goal of reducing costs and emission.The results indicate that 90% copper and cobalt are recovered under the optimal condition.Ammonium chloride crystals obtained by cooling and crystallizing of the filtrate are reused for the process.Therefore, the technique achieved highly utilization of oxide copper-cobalt ore under low temperature and less emission.

Key words: Oxide copper-cobalt ore, Ammonium chloride, Recycling