component, its flotation characteristics can affect the certain difficulties in the flotation of other minerals (Pb, Zn, Sb, W, etc.), because arsenic is considered as harmful element in almost all concentrates of metallic minerals. To the aim of obtaining high quality flotation concentrate, it is often necessary to

Arsenopyrite Flotation & Depression – Arsenopyrite Rejection. Floatability of arsenopyrite as a function of initial concentration of sodium isopropyl xanthate at various pH values. Recovery of arsenic as a function of pH in flotation of an arsenopyrite ore assaying 12.5% As (27.2% FeAsS) using 30 and 60 g/ ton sodium isopropyl xanthate and 70 ...

Separating copper and arsenic has always been a major problem in the copper slag flotation process, which influences copper slag utilization and the environmental safety. A comparative study of flash smelting furnace (FSF) slag and its flotation products (concentrate and tailing) reveals the factors …

The oxidation rate of arsenic minerals and non-arsenic minerals has been compared in a series of papers to explain the selective flotation of arsenic minerals from other sulfide minerals. According to Iwasaki et al. (1988), nickel arsenide (Ni 11 As 8 ) is much more easily oxidized than pyrrhotite, pentlandite, chalcopyrite and cubanite.

The flotation response for arsenic metal was determined at selected pH values between pH 5 and 12. In addition, the flotation response for arsenic metal was determined at selected Eh values between − 500 and + 500 mV vs. SHE for two selected pH values (pH 6 and pH 10).In each series of tests one duplicate test was conducted at selected conditions to ensure appropriate reproducibility ...

Arsenic Flotation. Arsenic is usually recovered as a by-product from auriferous arsenopyrite ores, either by roasting or smelting flotation concentrates. Enargite, the sulpharsenate of copper, is easily recovered by flotation. Flotation of arsenical ores offers no particular problem although occasionally extremely fine grinding is required to ...

1. Introduction. CSIRO Process Science and Engineering (Australia) has been developing new flotation flowsheets, based on pulp potential control, aimed at separating copper-bearing minerals and arsenic-bearing minerals in base metal circuits (Bruckard and Davey, 2007, Senior et al., 2006, Smith and Bruckard, 2007).Although the results to date have been promising, the flowsheets have …

Arsenic xide is largely absent from the Giant Mine surface tailings. ... This resulted in three solid waste streams: flotation tailings, cyanided calcine residue and cyanided electrostatic precipitator (ESP) dust which, during most of the operation's history, were combined and sent to the tailings ponds.

The paper will discuss our development of a flotation process to separate pentlandite and gersdorffite (the prime nickel and arsenic bearing minerals).The presentation will focus on the development of the process from conception, through lab and plant test work, to plant optimization and full scale production.

Arsenic Flotation (17 replies) (unknown) 6 years ago (unknown) 6 years ago. I want to float arsenic from ore of this composition 10% Sb, 2.6 g/t Au and 0.78% As with differential flotation, what can I use (unknown) 6 years ago (unknown) 6 years ago. Like. Is the arsenic present as arsenopyrite or as an oxide? It seems to me it would be easier ...

Rejection of arsenic minerals in sulfide flotation—A literature review. Int. J. Miner. Process., 93 (2) (2009), pp. 89-94. Article Download PDF View Record in Scopus Google Scholar. McCarthy et al., 2018. S. McCarthy, C. Ai, P. Blum. Enhancement of metallosphaera sedula bioleaching by targeted recombination and adaptive laboratory evolution.

Selective flotation of arsenic minerals through E h control has made significant advances in recent years with promising results achieved. In addition, various depressants and collectors have also been studied in arsenic removal. In this communication, the various approaches used in selective flotation of arsenic minerals are reviewed with ...

the changes in concentrations of antimony, lead and arsenic during this research. Index Terms—antimonite, arsenic, froth flotation, lead. I. INTRODUCTION The froth flotation process is used for ore concentration by utilizing the physio-chemical differences among mineral particles. The process comprises of chemical treatment on the

A positive correlation of arsenic, copper and cadmium is observed in the flotation process. • Arsenic-copper alloys in FSF slag account for nearly 90 % of arsenic-bearing phases. • Different fates of arsenic are depended on its embeded ways. • The recombination of As-O and Cu-S affects the selectivity of copper and arsenic.

Copper concentrates recently tested for mineralogy both measured about 0.44 percent arsenic content. This is above typical levels where penalties occur. Tennantite and enargite as well as Freibergite are copper arsenic sulphide minerals that respond to flotation in a similar manner to other copper sulphides.