"Crusher Sulfide Precipitation Antimony Precipitation"

Removal of antimony (Sb(V)) from Sb mine drainage ...

Antimony (Sb(V)) in Sb mine drainage has adverse effects on the receiving water environments. This study for the first time demonstrated the feasibility of using sulfate-reducing bacteria (SRB) to convert sulfate ions in SMD into sulfides that reduce Sb(V) to Sb(III) and to …

Removal of antimony (Sb(V)) from Sb mine drainage ...

2013-10-1 · The SRB-precipitation process comprises reduction of sulfate by SRB to sulfide and subsequent formation of sulfide precipitates with heavy metal ions from waters (Wang et al., 2012). Production of bio-sulfide by sulfate-reducing bacteria (SRB) is low in operational cost and can be achieved by applying sulfate-reducing activated sludge to the ...

Preparation and characterization of antimony sulphide ...

2020-1-1 · Herein, we report a new efficient approach to prepare different nanostructures of antimony sulphide. The conventional hydrothermal routes can be modified to control the size and morphology of the materials we have been prepared pedicellate flower-like nanostructure of antimony sulphide by quenched hydrothermal method (modified hydrothermal method).

Removal of antimony (Sb(V)) from Sb mine drainage ...

The principal compound in the precipitate was stibnite (Sb2S3) at pH 7 and pH 9. The Sb(V) removal mechanism is sulfate-reduction and sulfide oxidization-precipitation, different from the conventional SRB-precipitation processes for heavy metals. The Sb(V)/sulfate ratio is noted an essential parameter affecting the Sb removal efficiency from SMD.

ANTIMONY REMOVAL TECHNOLOGY FOR MINING …

2002-5-24 · Sulfide precipitation technology cannot remove soluble antimony to levels below 2.0 to 3.0 mg/l and lime precipitation cannot lower levels below 1.0 mg/l. A minimum desired level of 0.5 mg/l of antimony was selected for this technology assessment based on the effluent limitation recommended by the EPA BPCTCA in antimony mines.

Precipitation and ageing of antimony (III) sulphide ...

1981-12-16 · 1981-12-16 · Antimony (III) sulphide has been prepared by precipitation from aqueous solution, under different conditions of concentration, temperature, pH and ageing time. The phase composition, crystallinity and particle size of the precipitates have been studied by X-ray diffraction, electron microscopy and vacuum microbalance technique, and correlated ...

Antimony removal from wastewater by sulfate-reducing ...

2019-12-2 · The objective of this research was to study the precipitation of Sb and the stability of Sb 2 S 3 during treatment of synthetic Sb(V) wastewater by sulfate-reducing bacteria (SRB). We investigated the transformation and precipitation of Sb, as well as the re-dissolution of Sb 2 S 3 under different pH and carbon sources. The results showed that the precipitation of aqueous Sb and the re ...

THE ALKALINE SULFIDE HYDROMETALLURGICAL …

2009-8-19 · containing any number of metals. The alkaline sulfide system is one of these and is essentially a mixture of sodium sulfide and sodium hydroxide. This is a unique hydrometallurgical system as it is a very selective lixiviant for the distinct leaching of tin, gold, antimony, arsenic and mercury (1,2,3,4,5,6,7). Worldwide, it is employed

Removal of Metals by Sulphide Precipitation Using Na2S …

2020-9-7 · Sulphide precipitation is an alternative that helps to achieve very low residual metal concentrations (<0.01 mg/L) and experiences interference from chelating agents. The final concentration of sulphide precipitation is related to pH (Figure 1) and …

Precipitation and ageing of antimony (III) sulphide ...

1981-12-16 · Antimony (III) sulphide has been prepared by precipitation from aqueous solution, under different conditions of concentration, temperature, pH and ageing time. The phase composition, crystallinity and particle size of the precipitates have been studied by X-ray diffraction, electron microscopy and vacuum microbalance technique, and correlated ...

Sulfide precipitation of heavy metals from aqueous ...

Conventional sulfide precipitation processes have been performed at ambient temperature and are limited to the treatment of wastewater containing little or no organic materials and complexing compounds (D. Bhattacharyya et al., "Precipitation of Heavy Metals with Sodium Sulfide: Bench Scale and Full Scale Experimental Results" AIChE Symposium ...

Recovery of tellurium from high tellurium-bearing ...

2017-8-1 · A possible process for the recovery of tellurium from antimony and tellurium materials by alkaline sulfide leaching followed sodium sulfite precipitation was proposed. The tellurium and antimony materials were leached in 100 g/L Na 2 S solution at 80 °C for 60 min with L/S ratio of 10:1, in which 91.24% Te and 92.51% Sb were extracted into ...

Safe And Reliable Sulphide Mobile Jaw Crusher For Sale In ...

2021-3-31 · Crusher Sulfide Precipitation Antimony Precipitation. 10 dec 2013 stone crusher machine used in quarry in uk india south africa offer stone crushing machines for sale such as jaw cone mobile17 feb 2014 stone crushing machines uk more details contactphp get the price of

Preparation and characterization of antimony sulphide ...

2020-1-1 · 1. Introduction. Due to good band gap of the Sb 2 S 3 is used as solar material also its covers all the range of the solar spectrum .Sb 2 S 3 has been widely studied for its special applications as a target material for microwave devices, rechargeable storage cell switching devices, and various optoelectronic devices ndrites, as a type of fractal and microscale three dimensional structure ...

Sulphide precipitation – Mine Closure

2021-3-31 · Crusher Sulfide Precipitation Antimony Precipitation. 10 dec 2013 stone crusher machine used in quarry in uk india south africa offer stone crushing machines for sale such as jaw cone mobile17 feb 2014 stone crushing machines uk more details contactphp get the price of

Precipitation and ageing of antimony (III) sulphide ...

Antimony (III) sulphide has been prepared by precipitation from aqueous solution, under different conditions of concentration, temperature, pH and ageing time. The phase composition, crystallinity and particle size of the precipitates have been studied by X-ray diffraction, electron microscopy and vacuum microbalance technique, and correlated ...

Antimony removal from wastewater by sulfate-reducing ...

2019-12-2 · The objective of this research was to study the precipitation of Sb and the stability of Sb2S3 during treatment of synthetic Sb(V) wastewater by sulfate-reducing bacteria (SRB). We investigated the transformation and precipitation of Sb, as well as the re-dissolution of Sb2S3 under different pH and carbon sources. The results showed that the precipitation of aqueous Sb and the re-dissolution ...