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辉锑矿石经粗选得到粗精矿,往往含砷矿物也得到富集。而在精选中又未采取措施,继续加入有利硫化矿物浮游的活化剂,使锑精矿中含砷量较高。笔者通过试验得知:粗选中加入铅离子活化剂,以乙硫氮为捕收剂,浮选在弱酸性介质中进行,在精选循环加入大剂量水玻璃(模数为2.4),浮选在碱性介质中进行,可得到优质锑精矿(含锑60.10%,含砷只有0.5%)。(一)矿样试样采自皖南某锑矿。矿石工业
Sebastian antimony ore rougher concentrate obtained, often containing arsenic minerals have also been enriched. However, no measures have been taken in the selection to continue adding activators which are beneficial to sulfide mineral floating, so that the content of arsenic in the antimony concentrate is high. The author learned through experiments: rougher by adding lead ion activator to brife sulfur as a collector, flotation in a weak acid medium, in the selection cycle by adding large doses of water glass (modulus 2.4), flotation In alkaline medium, you can get high-quality antimony concentrate (containing 60.10% antimony, arsenic only 0.5%). (A) samples of ore collected from an antimony mine in southern Anhui. Ore industry