Flotation is widely used to concentrate copper, lead, and zinc minerals, which commonly accompany one another in their ores. Many complex ore mixtures formerly of little value have become major sources of certain metals by means of the flotation process. This article was most recently revised and updated by Chelsey ParrottSheffer, Research Editor.
This paper is a research report to reveal the decisive points for effectual abstraction of arsenopyrite from galena ore by flotation separation method. Experiments have been conducted on a high grade leadzinc ore sample which contains a certain amount of arsenic and probably some pure minerals. The experimental results show that lime, potassium permanganate 0 or bleaching powder played its
2020523&ensp·&enspFroth Flotation (Sulphide Oxide) As for Caribou it is a decent deposit. I believe a technological alternative to ultrafine grinding for lead zinc flotation and separation was investigated decades ago when Brunswick Mining Smelting and Heath Steele Mines were struggling with flotation selectivity at regrind P80s of 35 um. I don't
2020521&ensp·&enspArsenic Flotation (17 replies) (unknown) 4 years ago (unknown) This is a tricky separation since both stibnite and arsenopyrite require activation to float successfully. So after activation, both minerals will tend to float. Presumably the significantly greater abundance of stibnite would consume most of the activator but no doubt there
2012104&ensp·&enspwith low arsenic content were tried to be produced by froth flotation. Individual concentrates of Pb, Zn and Cu assayed 67.54% Pb, and 61.49% Zn and 23.31% Cu where corresponding recoveries were 73.0% and 77.1% and 38.7%, respectively. Arsenic contents were less than 2000 ppm in the lead and zinc concentrates.
A mineral processing technology for Tangjia lead zinc ore which adopted a lead zinc sulfur selective flotation scheme and sodium aulfite as depressant for pyrite was proposed. The technology has the advantage over partial bulk flotation scheme including selective flotation of zinc after lead sulfur bulk flotaiton,and the minerial processing index can be increased greatly by using the technology.
20131126&ensp·&enspOre sample, which was used in this flotation testing, contained a large amount of arsenopyrite (over 40% by mass). The results showed that arsenic content in the rough lead concentrate can be decreased up to ten times compared to its content in the ore, using NaCN as depressant. Keywords: arsenic, sodium cyanide, flotation concentrate