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1 de dic. de 2008 · In solution, the xanthate peak at 301 nm (Hao et al., 2000 (Hao et al., , 2008 Khmeleva et al., 2002;Montalti et al., 1991) was identified but disappeared from solution in the presence of Cu ...
1 de nov. de 2023 · At 7 V, 78 % of the xanthate was removed with a total xanthate removal of 2086 mg/m 2 at a flow rate of 1.5 mL/min for 5 mg/L xanthate solution during 180 min. At slower flow rates, the effluent concentration is cleaner and the salt removal efficiency is higher because the influent water has a longer contact time with the electrodes.
25 de jun. de 2023 · Metal xanthate complex was formed by introducing an excess of metal ions to an aqueous xanthate solution. The aim was to quantitatively form neutral metal-xanthate complexes at a 1:2 molar ratio. Afterward, an equal volume of organic solvent was added, and the sample was shaken for 30 seconds.
14 de abr. de 2020 · An optimal laboratory two-step procedure was developed for sodium/potassium O-alkyl carbonodithioate (sodium/potassium alkyl xanthates) production in the form of aqueous solutions. Sodium isopropyl xanthate (Na-iPrX), as the most effective salt in a real ore flotation process, was also produced at an industrial level and introduced as a collector for copper ores.
1 de sept. de 2021 · Butyl xanthate was used as the target pollutant to characterize the adsorption and photocatalytic properties of obtained materials. 0.06 g of photocatalyst was added into 100 mL of butyl xanthate solution with 100 mg/L concentration. The mixture of catalyst and solution was sonicated for 5 min to ensure uniform mixing.
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 ...
1 de oct. de 2015 · From Fig. 2, each xanthate was rapidly decomposed with the removal of ca. 97% in first 5 min by both the O 3 and UV/O 3 processes. As the ozonation time was extended to 10 min, almost 100% of each xanthate was decomposed (residual concentration <0.2 mg/L). It indicates that both the O 3 and UV/O 3 can effectively degrade alkyl xanthates.
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