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15 de ene. de 2024 · Mercury is the heavy metal that is most difficult to remove from cyanide solution. This situation brings with it many environmental, health and economic problems. This study aims to effectively utilize xanthate by presenting a new strategy for purifying mercury in the cyanidation process of amalgamation residues. In the study, the removal of mercury by precipitation using PAX from cyanidation ...
21 de ago. de 2021 · An atomic force microscope (AFM) was applied to study of the adsorption of xanthate on bornite surfaces in situ in aqueous solutions. AFM images showed that xanthate, i.e., potassium ethyl xanthate (KEX) and potassium amyl xanthate (PAX), adsorbed strongly on bornite, and the adsorbate bound strongly with the mineral surface without being removed by flushing with ethanol alcohol.
1 de sept. de 2021 · One pathway displayed that the SBX was first transformed into butyl xanthate peroxide (BPX), CO 3 2− and S 2 O 3 2−, and then further decomposed into CO 2, H 2 O and SO 4 2− under the ongoing •OH attack. Another pathway showed that precipitates consisting of butyl copper xanthate and iron oxide species were generated during the SBX ...
10 de may. de 2020 · In addition, increasing the solution pH to 10 does not prevent the adsorption of xanthate and Aerofloat 238 on chalcocite and the result is in line with the fact that chalcocite floats well in a ...
In solution, the xanthate peak at 301 nm ( Hao et al., 2000Hao et al., , 2008Khmeleva et al., 2002;Montalti et al., 1991) was identified but disappeared from solution in the presence of Cu ...
7 de oct. de 2020 · The removal methods of heavy metal ions in water mainly include precipitation, ion exchange, membrane filtration, photocatalytic degradation, oxidation, flocculation and adsorption (Fu & Wang 2011; Hashim et al. 2011).The adsorption method has many advantages, such as being suitable for the treatment of dilute solution, high enrichment multiple, good separation effect, high product quality ...
18 de mar. de 2023 · Xanthate is the most widely used and effective collector in the flotation of sulfide minerals. However, the residual xanthate in flotation wastewater may cause serious environmental pollution and even human health hazards. At present, a variety of treatment technologies have been developed to degrade xanthate pollutants in wastewater, with the aim of meeting safe discharge standards.
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