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结合我国瓷源特点,我们对某地磁黄铁矿精矿进行了用高压湿法制取元素硫并回收有用金属的研究。实验结果表明,从磁黄铁矿用高压湿法制取元素硫是可能的,反应后的固体产物是粗大的元素硫珠和细小的三氧化二铁粉末,两者易于用机械筛分分离;矿石中伴生的大部分钴和一部分铜能浸取到溶液中,另一部分铜则为生成的元素硫所包裹。在试验条件下,即温度112℃、氧分压10大气压、反应时间2.5小时、液
Based on the characteristics of porcelain source in our country, we studied the preparation of elemental sulfur by high-pressure wet method and the recovery of useful metals from a pyrrhotite concentrate. The experimental results show that it is possible to prepare elemental sulfur from pyrrhotite by high pressure wet method. The solid product after reaction is coarse elemental sulfur beads and fine iron oxide powder, which can be easily separated by mechanical screening. Most of the associated cobalt and some of the copper in the ore can be leached into the solution, and the other part of the copper is encapsulated by the elemental sulfur generated. Under the experimental conditions, namely, the temperature is 112 ° C, the partial pressure of oxygen is 10 atm, the reaction time is 2.5 hours, the liquid