Test on efficient separation and comprehensive recovery of a refractory copper-iron polymetallic ore
Copper in a copper-iron polymetallic ore is mainly in the form of chalcopyrite,with a mass fraction of 0.26％.Iron is mainly in the form of pyrrhotite,magnetite and limonite,with a mass fraction of 27.88％.Arsenic is mainly in the form of toxic sand,with a mass fraction of 0.76％.Its mineral embedding has a fine particle size and a close symbiotic relationship with each other,which is a complex copper-iron polymetallic ore with high sulfur and high arsenic.Based on the nature and characteristics of the ore,a systematic beneficiation test is carried out,the separation process of"preferential copper separation-weak magnetic iron separation,iron separation,iron-sulfur separation"is formulated,and the recovery effect of copper and iron in the process of raw ore separation is effectively improved by using Z-200 as the copper collector to strengthen the re-grinding of crude concentrate and desulfurization of iron concentrate.The closed-circuit test obtains copper concentrate with a copper grade of 25.25％,a recovery rate of 81.81％and an arsenic mass fraction of 0.16％,and an iron concentrate with an iron grade of 64.98％,a recovery rate of 33.26％and a sulfur mass fraction of 0.15％,which realizes the efficient separation and comprehensive recovery of copper,iron and sulfur minerals,and provides references for the development and utilization of similar resources.
copper-iron polymetallic orechalcopyritepyrrhotitearsenopyritecombined floating-magnetic process
万方数据
维普
