低品位铜矿制备活性氯化亚铜  

Experiment Study of Preparing Active Cuprous Chloride from Low Grade Copper Ore

作　　者：康文通[1] 陈仲祥[1] 李小云[1] 

机构地区：[1]河北科技大学化学与制药工程学院,河北石家庄050018

出　　处：《矿业研究与开发》2005年第3期44-46,共3页Mining Research and Development

摘　　要：研究了由低品位铜矿制取铜氨络合物,经蒸氨制得纯净的氧化铜,再经过氯化、还原、水解等过程而制得活性氯化亚铜的工艺过程.确定了最佳工艺条件:矿粉细度100目以上;浸取温度70～80℃;中和除铁pH=3;蒸氨温度103℃,时间80 min;NaCl用量超过理论用量的10%;HCl用量超过理论用量的15%;反应温度85～95℃,反应时间2 h.The process of preparing active cuprous chloride from low grade copper ore was experimentally studied, in which cuprammonia complex compound was prepared from copper ore by catalysis conversion; then, pure copper oxide was obtained by evaporating ammonia; finally, the product was gained by chlorization, recuction and hydrolysis. The optimum technological conditions has been determined as the follows: the fineness of the ore powder is over 100 mesh; the leaching temperature is 78~80℃; the pH value of solution is kept at 3 in the course of neutralization leaching solution to remove ferric ions; the temperature and the time of evaporating ammonia are 103℃ and 80min respectively; the amounts of NaCl and HCl are the 1.1 and 1.5 times of their theoretic amounts respectively; reaction temperature and reaction time were 85~95℃ and 2h, respectively.

关 键 词：低品位铜矿 催化 铜氨络合物 氯化亚铜 

分 类 号：TQ131.21[化学工程—无机化工]