CAJ | 학술논문

以氰化尾渣衍生物为原料,制备标准铅、锌精矿.采用X体系在常压下进行氧化浸出,研究浸出电位、氧化剂、总酸量、试剂A、试剂B、浸出时间和浸出温度对锌回收率、锌精矿品位以及铅浸出率的影响.结果表明:采用二段浸铅与气液固强化浸出相结合的方法在高效气液固反应器中进行实验,其最优条件如下:试剂A量15.6 g/L,试剂B量90 g/L,液固比L/S=10:1,鼓氧量1.5 L/min,浸出温度70℃,每段浸出时间均为3 h.所得铅精矿和锌精矿氧量品位分别高达75.49%和45%,副产品硫磺的品位达到99%,其中,铅、锌总回收率分别为90.68%和99%,单质硫的回收率高达99.1%.
이청화미사연생물위원료,제비표준연、자정광.채용X체계재상압하진행양화침출,연구침출전위、양화제、총산량、시제A、시제B、침출시간화침출온도대자회수솔、자정광품위이급연침출솔적영향.결과표명:채용이단침연여기액고강화침출상결합적방법재고효기액고반응기중진행실험,기최우조건여하:시제A량15.6 g/L,시제B량90 g/L,액고비L/S=10:1,고양량1.5 L/min,침출온도70℃,매단침출시간균위3 h.소득연정광화자정광양량품위분별고체75.49%화45%,부산품류광적품위체도99%,기중,연、자총회수솔분별위90.68%화99%,단질류적회수솔고체99.1%.
@@@@The standard lead and zinc concentrate were prepared from cyanide tailings derivatives. By using X system in the atmospheric pressure for oxidize leaching, the influences of leaching potential, antioxidants, total acid amount, reagent A, reagent B, leaching time and leaching temperature on zinc recovery rate, zinc concentrate grade and lead leaching rate were studied. The results show that the experiments are performed in the high efficient gas-liquid-solid reaction tank combining the methods of two-section lead leaching and gas-liquid-solid intensification leaching. The optimal conditions are as follows:reagent A 15.6 g/L, reagent B 90 g/L, liquid-solid ratio L/S=10:1, drummed O2 speed 1.5 L/min, temperature 70 ℃, leaching time 3 h for each section. Eventually, the grades of lead and zinc concentrate obtained are 75.49% and 45%, respectively, with sulfur grade of up to 99% as the by-product. Moreover, the total recovery rates of lead and zinc are 90.68%and 99%, respectively, and the recovery rate of elemental sulfur is 99.1%.