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研究了中度嗜热微生物浸出复杂多金属铜矿过程中初始pH、温度、装液量、转速、原电池效应(黄铁矿比例)和矿浆浓度的影响。结果表明,初始pH为1.5的铜浸出率分别是初始pH为1.0和2.0的实验组浸出率的1.5倍和1.4倍。当温度为45°C时铜的浸出率比温度为50°C时的高出1236.8%。随着转速的升高和装液量的降低,铜的浸出率明显提高。当黄铁矿的比例增大时,铜的浸出率也逐渐提高,但是当黄铁矿比例高于20.0%后,铜浸出率不再增加。温度和pH及温度和黄铁矿比例之间存在显著的交互作用。
The effects of initial pH, temperature, liquid loading, rotating speed, galvanic cell effect (pyrite ratio) and pulp concentration on the extraction of complex polymetallic copper from moderate thermophilic microorganisms were studied. The results showed that the leaching rates of copper with the initial pH of 1.5 were 1.5 and 1.4 times of those of the experimental group with the initial pH of 1.0 and 2.0, respectively. The copper leaching rate is 1236.8% higher at a temperature of 45 ° C than at a temperature of 50 ° C. With the increase of speed and liquid loading, the leaching rate of copper is obviously increased. When the proportion of pyrite increases, the leaching rate of copper gradually increases, but when the proportion of pyrite is higher than 20.0%, the leaching rate of copper does not increase any more. There is a significant interaction between temperature and pH and temperature and pyrite ratio.