DOI: 10.1016/J.MINENG.2019.01.031 Corpus ID: 104373374; Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles @article{Amrollahi2019RemovalOT, title={Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles}, author={Azadeh …
residual xanthate and its by-products in wastewater tailings are not allowed to dispose into environmental streams due to both strong nasty smells and being toxic
The efficient treatment of mineral-processing wastewater has attracted soaring interest recently. This study's objective was to degrade xanthate from flotation tailings wastewater using a pyrite …
The residual xanthates and their degradation products in the plant tailings may cause serious adverse health and environmental effects to humans, animals and natural ecosystems resulting from inappropriate design of the tailings disposal system (Li, 1990, Lam, 1999, Zhao et al., 2006).
Specifically, inorganic substances and residual reagents are at their lowest in the spring and summer months because of dilution and decomposition, especially for …
The residual organic reagents (including xanthates) in the flotation tailings can cause environmental issues during their disposal, besides their deleterious influence on the flotation performance during recycling. In this study, the adsorption characteristics of bentonite modified with copper and manganese ferrite nanoparticles (Besbnd …
From the process control and environmental points of view, it is important to know about the concentrations of process chemicals remaining in tailings waters. ... the main aim was to carry out on-line tests by using the process titrator in analysing the residual concentration of an organic collector chemical, xanthate, in the flotation …
The adsorption capacity of Be CuFe 2 O 4 was found to be higher than Be MnFe 2 O 4 and at optimum conditions (adsorbent dosage: 4 mg/mL; xanthate concentration: 1000 mg/L; pH = 9.2; time = 40 min) more than 94% of the residual xanthate was removed by this adsorbent. The kinetic studies showed that rate of xanthate adsorption on both …
The residual organic reagents (including xanthates) in the flotation tailings can cause environmental issues during their disposal, besides their deleterious influence on the flotation performance ...
The results obtained give some insight into the environmental fate of ethyl xanthate in tailings streams, and a basis on which to consider the environmental importance of such species in tailings dams. Strategies for the destruction of residual xanthate levels in waste water streams are discussed in terms of the likely reaction …
Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles ... In recent years, a variety of methods have been developed to remove the residual xanthate from the aqueous solutions, such as coagulation and precipitation (Mielczarski, 1986), chemical oxidation (Silvester et al., …
Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles; Ali Zeraatkar Moghaddam . Associate Professor ... 1000 mg/L; pH=9.2; time=40 min) more than 94% of the residual xanthate was removed by this adsorbent. The kinetic studies showed that rate of xanthate adsorption on both …
Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles; علی زراعتکار مقدم . دانشیار ... 1000 mg/L; pH=9.2; time=40 min) more than 94% of the residual xanthate was removed by this adsorbent. The kinetic studies showed that rate of xanthate adsorption on both ...
Tailings water may be more suited to Ni flotation owing to residual SIPX. ... has led to a need for innovation in the usage of freshwater and the handling of waste waters. The mining industry has seen a surge of initiatives aimed at minimising freshwater usage by reusing and recycling process waters within mining operations (Liu et al., 2013 ...
The results indicate that the H-Be and Al-Be are capable of removing 92.7% and 90.7% of xanthate from the as-received tailing samples, respectively. Furthermore, …
The residual xanthate in the flotation tailing can cause environmental issues through contaminating of the nearby water resources as a result of poor design of the …
method of managing xanthate containing water streams. Same methods of xanthate management and residual xanthate removal may be applied to wet and dry tailings deposition. In all cases, the precise execution of xanthate management needs to be planned site-specifically considering the individual characteristics of each mine, the …
The residual xanthate concentration in the solution was measured by UV–Visible spectrometer at λ = 301 nm. In the adsorption tests, the effect of different …
residual xanthate and its by-products in wastewater tailings are not allowed to dispose into environmental streams due to both strong nasty smells and being toxic to biological systems [3−6]. In recent years, especially with increasing effort on environment protection from community and governments, many methods have been
The adsorption capacity of BeeCuFe2O4 was found to be higher than BeeMnFe2O4 and at optimum conditions (adsorbent dosage: 4 mg/mL; xanthate concentration: 1000 mg/L; pH=9.2; time=40 min) more than 94% of the residual xanthate was …
The results obtained give some insight into the environmental fate of ethyl xanthate in tailings streams, 40 and a basis on which to consider the environmental importance of such species in ...
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I was wondering if anyone is checking into "free Xanthate" or "residual Xanthate" in flotation circuit; specifically in copper flotation.It's more common in Gold leaching to always keep tabs on your "Free Cyanide", but in Copper flotation there is very little interest in knowing what's the residual
Efficient treatment of residual xanthate from tailing wastewater has attracted soaring interesting recently. Herein, effect of activated H 2 O 2 by natural …
Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano-particles; Add time:08/20/2019 Source:sciencedirect. ... pH = 9.2; time = 40 min) more than 94% of the residual xanthate was removed by this adsorbent. The kinetic studies showed that rate of xanthate adsorption on both adsorbents ...
Removal of the residual xanthate from flotation plant tailings using modified bentonite •The residual xanthate in the flotation tailings can cause environmental issues.•H-Be and Al-Be were synthesized and used for removal of the residual xanthate.•At optimum conditions more than 99% of the residual xanthate was removed.•The kinetics, …
measurement of residual xanthate concentration directly from flotation concentrate cells. Xanthate is a commonly used collector in flotation processes where its residual concentration has an impact on the recovery of metal sulphides. Xanthoprobe has been installed at the Eland Platinum PGM concentrator since March 2010 to establish the long-
DOI: 10.1016/J.MINENG.2019.01.031 Corpus ID: 104373374; Removal of the residual xanthate from flotation plant tailings using bentonite modified by magnetic nano …
In order to minimise the negative effects of the water recirculation caused by the residual reagents recirculated from the tailings pond, as described above, a systematic residual xanthate monitoring and control scheme was developed. The xanthate analysis methodology was based on the one described by (Jones and Woodcock, 1973). Even …
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 …
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