超声波强化HCl-NaCl浸出高铅锑吹渣

对高铅锑吹渣进行HCl-NaCl常规浸出，并在其最佳工艺条件下引入超声波强化浸出. 实验表明，超声波强化浸出15 min，Sb的浸出率可达到常规浸出45 min的值. 超声波强化浸出高铅锑吹渣可大大提高Sb, Pb的浸出速率，缩短浸出时间. 超声波功率增大，浸出率提高. 在浸出率相同时，高功率比低功率的超声波强化浸出所需的时间少. 但由于Sb, Pb的最大浸出率是由其物相组成决定的，超声的能量并没有为常规下不能发生的反应开辟新的化学反应通道，因而Sb, Pb的最大浸出率与超声场的引入几乎无关.

HCl-NaCl Leaching of Slag Containing Antimony with High Lead Content under Ultrasonic

The process for conventional leaching of slag containing antimony and lead in HCl-NaCl solution was investigated. Under the optimum conditions of the leaching process, ultrasonic was used to strengthen the process. The results showed that the leaching rate of antimony was strengthened by ultrasonic for 15 min, equal to that of the conventional leaching for 45 min. Ultrasonic could increase the leaching speed of antimony and lead evidently, and the leaching time was decreased. The leaching rate of antimony and lead was increased with the increase of ultrasonic power. When the leaching rate reached the same value, the leaching time of the process strengthened by high power ultrasonic was shorter than that of low power ultrasonic. The maximum leaching rate of antimony and lead was limited by the fixed phase composition of the slag, and the energy of ultrasonic can not produce a new pathway for the reaction which can not occur under the conventional conditions. However the maximum leaching rate of Sb and Pb has nothing to do with the using of ultrasonic.