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某地斑岩型铜矿,除主要铜矿物黄铜矿外,尚有少量辉铜矿、斑铜矿和砷黝铜矿,个别还有孔雀石、赤铜矿和针硫铋铅铜矿;其它金属矿物有黄铁矿、赤铁矿和菱铁矿.脉石矿物有云母、石英和方解石.为分别测定辉铜矿和斑铜矿的含量,一般铜物相分析方法不能满足要求.关于铜矿石物相分析,近年来国内外发表了许多文章.提出在铜精矿中分别测定辉铜矿、斑铜矿、砷黝铜矿和黄铜矿的方法:称取三份试样,用含4%硫脲的0.15%硫酸浸取辉铜矿,用含15%硫脲的2N盐酸浸取辉铜矿和斑铜矿,
A certain porphyry type copper mine, in addition to the main copper mineral chalcopyrite, there are a small amount of chalcocite, bornite and arsenic tetrahedrite, some also malachite, red copper and needle sulfur bismuth lead-copper Other metalloids include pyrite, hematite and siderite, gangue minerals such as mica, quartz and calcite, and in general, the copper phase analysis method can not meet the requirements for the determination of the content of chalcopyrite and bornite. With regard to the phase analysis of copper ores, many articles have been published at home and abroad in recent years.A method for the determination of chalcopyrite, bornite, arsenic tetrahedrite and chalcopyrite in copper concentrates is proposed: three samples , Chalcopyrite was leached with 0.15% sulfuric acid containing 4% thiourea, chalcopyrite and bornite were impregnated with 2N hydrochloric acid containing 15% thiourea,