西南某高铁银铅锌氧化矿浮选试验研究

西南某高铁银铅锌氧化矿主要矿物为白铅矿、铅铁矾、菱锌矿、异极矿、褐铁矿,银以类质同象形式赋存于铅矿物中。试验采用新型AF药剂对铅和银同时浮选,取得铅品位42%、含银1 460 g/t、铅回收率70%、银回收率达77%的银铅精矿。在浮选氧化锌时采用一项新的氧化锌浮选技术,不脱泥直接加新型LW51捕收剂,得到锌精矿品位20.15%、锌回收率63.92%。此选别工艺可有效处理该地区高铁银铅锌氧化矿石。

A Southwest Gao Tieyin lead-zinc oxide ore flotation test study

The value minerals of a high-iron Ag-Pb-Zn ore of southwest china are cerussite,plumbojarosite,smithsonite,hemimorphite,and limonite,and the silver minerals are mainly occurred in the lead minerals in the form of isomorphism.A new type collector of AF was adopted to float lead and silver minerals,finally the Ag-Pb concentrate grading 42% Pb and 1 460 g/t Ag with recoveries of 70% Pb and 77% Ag was obtained.A new technique was selected in the flotation of zinc minerals,the collector of LW51 was added to the pulp without de-sliming,finally the zinc concentrate grade reached to 20.15% with recovery of 63.92%.This selective process could be applied to treat these type of high-iron Ag-Pb-Zn oxide ore efficiently of the region.