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斯米尔諾夫的“硫化矿床氧化带”一書中談到:在硫化矿床氧化带条件下的銅矿物,除完全淋滤的情況外,几乎在每一个銅矿床的氧化带中都能直接遇到的而且分布最广的銅矿物是:孔雀石(2Cuo·Co_2·H_2O)、矽孔雀石(mCuO·nSiO_2·PH_2O)和一部分石青(3CuO·2CO_2·H_2O)。其次是赤銅矿、土黑銅矿、輝銅矿、銅藍和自然銅。而后者又能按下序列逐漸变成孔雀石。黃銅矿→輝銅矿(銅藍、斑銅矿)→赤銅矿(磚紅銅矿)→土黑銅矿、土瀝青銅矿→孔雀石(矽孔雀石、石青)。队上述情況我們就可以得到結論:在硫化矿床氧化带的条件下銅主要是以孔雀石的形式存在。我們都知道,孔雀石、石青等都是铜的硷式碳酸盐类。因此,在这类矿物中提取鋼就比較容易。根据这个原理,就可以适当的採用比較弱的溶剂來提取銅。而化探工作中所採集的土样都是取自氧化带条件
Smirnov’s book, Oxides of Sulfide Ore Belts, states that copper minerals in the sulphide oxidation zone of the sulphide ore deposit, in addition to complete leaching, can be encountered almost directly in the oxidation zone of each copper deposit The most widely and widely distributed copper minerals are: 2Cuo · Co_2 · H_2O, mCuO · nSiO_2 · PH_2O, and a part of the cristobalite (3CuO · 2CO_2 · H_2O). Followed by red copper, soil black copper, chalcocite, copper blue and natural copper. The latter can press the sequence gradually become malachite. Chalcopyrite → chalcopyrite (copper blue, bornite) → red copper (brick red copper) → soil black copper, earth copper ore → malachite (silicon malachite, stone blue). We can conclude from the above situation that the copper is mainly in the form of malachite under the oxidized zone of sulphide ore deposits. We all know that malachite, azurite are all basic copper carbonate. Therefore, it is easier to extract steel from this type of mineral. According to this principle, we can use a relatively weak solvent to extract copper. The geochemical samples collected during geochemical exploration are taken from the oxidation zone