含铀铅锌多金属硫化矿的无氰浮选工艺研究

本文介绍了含铀铅锌矿的矿石特性,叙述了无氰浮选工艺试验结果。研究表明,采用先选铅、锌,后选铀的优先浮选流程,技术可行、经济合理。当原矿中含铅2.86％、锌2.47％、铀0.019％时,可获得含铅65.13％、锌4.51％的铅精矿,含锌52.0％、铅1.22％的锌精矿,含铀0.028％的铀精矿。铅精矿、锌精矿和铀精矿的回收率分别为94.87％、87.61％和66.13％。文中还结合试验结果对浮选过程中有关亚硫酸钠的影响、硫化钠的作用及丁基铵黑药(二丁基二硫代磷酸铵)选浮法工艺的实质作了讨论。

NON-CYANIDE PROCESS FOR FLOTATION OF A URANIUM-BEARING LEAD-ZINC POLYMETALLIC SULPHIDE ORE

The characteristics of the minerals of a uranium-bearing lead-zinc ore are described in this paper.And the experimental results of non-cyanide flotation process are given. The tests show that the selective flotation Process of lead and zinc followed by uranium treatment is feasible in technology and reasonable in economics. When the run-of-mine contains 2.86%Pb, 2.47%Zn and 0.019%U,the lead concentrate assaying 65.13%Pb and 4.51% zn, the zinc concentrate assaying 52.00%zn and l.22%Pb, and the uranium concentrate assaying 0.028%U can be obtained with the recoveries of 94.87%Pb, 87.61%zn and 68.13%U respectively. The influence of sodium sulphide on flotaion Process, the effect of sodium sulphide and the flotation mechanism of dibutyldithiophosphate ammonium are also discussed in this Paper.