循环利用氯化铵从氧化铜钴矿中回收铜钴

通过对氯化铵焙烧转化氧化铜钴矿-浸出-沉淀铜钴-氯化铵回收过程的研究，实现氯化铵的循环利用，达到回收富集铜钴及减少排放的目的。试验研究表明：在最佳工艺技术条件下，铜、钴回收率均达90%左右；氯化铵可从饱和的沉淀母液中冷却结晶出来，循环用于氧化铜钴矿的处理。因此，可实现氧化铜钴矿的低温、少废、高效开发利用。

Recovery of Copper and Cobalt from Oxide Copper-cobalt Ore with Ammonium Chloride

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.