Decomposition of sodium butyl xanthate (SBX) in aqueous …
Sodium n-butyl xanthate (SBX) is widely used as a collector in the flotation of sulfide minerals. Residual SBX and its byproducts in the flotation effluents may cause environmental pollution.
Effect of Collector Physisorption on Flotation of Galena with Xanthate …
Abstract The authors propose the galena flotation mechanism based on the joint work of chemisorbed collector and physisorbed lead xanthate in molecular form. It is proved experimentally that the products of interaction between xanthate and lead ions possess surface activity dependent on the concentration ratio and on solution pH. In …
Adsorption of xanthate from aqueous solution by multilayer …
Xanthate has become the main organic pollutant in mine wastewater because of its widespread use as a flotation collector. Multilayer graphene oxide (MGO) exhibits excellent adsorption performance in removing organic contaminants from aqueous solutions that is attributed to its rich oxygen-containing functional groups and large …
Adsorption kinetics and thermodynamics of sodium butyl xanthate …
In this paper, the effect of sodium butyl xanthate (NaBX) adsorption on the surface of bornite at different pH on flotation was studied by adsorption kinetic and thermodynamic. The flotation results demonstrated that the recovery was the highest when pH was 9 in NaBX solution (4×10−5 mol/L). The adsorption kinetics showed the reaction …
Enhancing flotation separation of chalcopyrite and …
Separation effects of sodium polyacrylate (PAAS) and gum Arabic (GA) on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl xanthate (PBX) as collector were ...
Thermochemical measurements of the surface reactions of sodium …
Thermochemical measurements were made of the reactions between sodium cyclohexyl dithiocarbamate, potassium n-butyl xanthate and mixtures thereof with pyrite at pH = 4. The initial steady state heat of adsorption for the potassium n-butyl xanthate and sodium cyclohexyl dithiocarbamate was −67 kJ/mole.
Evaluation of sodium isobutyl xanthate as a collector in the …
The representative sample of the carbonatitic Palabora copper ore ground 45 % passing 75 µm was froth-floated with sodium isobutyl xanthate (SIBX) collector at …
Investigating the Selectivity of Xanthates for the Flotation
The current study investigated the effects of thiol collectors on the flotation of base metals (BMs) and platinum group metals (PGMs) ores. The properties of a single-mineral flotation test were conducted using sodium isobutyl xanthate (SIBX), sodium ethyl xanthate...
Enhancing flotation separation of chalcopyrite and …
Separation effects of sodium polyacrylate (PAAS) and gum Arabic (GA) on flotation of chalcopyrite and magnesium silicate minerals using potassium butyl …
Adsorption kinetics and thermodynamics of sodium butyl xanthate …
In this paper, the effect of sodium butyl xanthate (NaBX) adsorption on the surface of bornite at different pH on flotation was studied by adsorption kinetic and thermodynamic.
Xanthate degradation occurring in flotation process waters …
Their research aimed at finding an optimized method for quantification of diisobutyl dithiophosphate (DTP), diisobutyl dithiophosphinate (DTPI), ethyl xanthates …
Structural Modification of Xanthate Collectors To …
Structural Modification of Xanthate Collectors To Enhance the Flotation Selectivity of Chalcopyrite ... ability toward chalcopyrite than sodium isobutyl xanthate and O-isopropyl-N-ethylthionocarbamate. Moreover, BIBX displays superior selectivity for chalcopyrite ... Both the froth stream and tailings were weighed after filtration and air ...
Xanthate
Optimum recovery of the auriferous sulfides was obtained with a mixture of TDM and sodium butyl xanthate, together with only a little copper sulfate as an activator in a weak alkaline pulp adjusted by sodium hydroxide. ... Froth Flotation. Richard R. Klimpel, in Encyclopedia of Physical Science and Technology (Third Edition), 2003. III. Classes ...
A green flotation collector towards efficient separation of
The flotation results showed that PBAHX exhibited superior selectivity, the separation index of PBAHX for chalcopyrite and pyrite is 2.65 while that of the traditional sodium isobutyl xanthate (SIBX) is 1.29, and enabled …
Xanthate Degradation in Flotation Tailings Wastewater
A sodium butyl xanthate (SBX) removal rate of more than 96% ... organic-sulfur-based collectors for the froth flotation of sulfide ores as well as a multitude of oxidized ores [3,4]. ... Fenton reaction for the degradation of xanthate in flotation tailings wastewater. The main goals of this study were as follows: (1) determining the catalytic ...
The effect of using sodium di-methyl-dithiocarbamate as
The effect of using sodium di-methyl-dithiocarbamate as a co-collector with xanthates in the froth flotation of pentlandite containing ore from Nkomati mine in South Africa
Stibnite froth flotation: A critical review
Highlights • Froth flotation plays a key role in the recovery of stibnite from primary and secondary sources. • A critical literature review on stibnite flotation had not …
The effects of mixtures of potassium amyl xanthate (PAX) and …
Potassium amyl xanthate (PAX) and sodium isobutyl xanthate (SIBX) are traditional thiol collectors used in the bulk and selective froth flotation of nickel and copper sulfide mineral ores. Individually, they are not selective enough for economical low-grade nickel froth flotation. Therefore, more selective collectors or co-collectors are required.
The Behaviour of Mixtures of Sodium Iso-Butyl Xanthate and Sodium …
It is expected that changes in the pulp chemistry would in turn affect both the pulp and froth phase phenomena, thereby affecting flotation performance. Thus, this study considers mixtures of thiol collectors, sodium iso-butyl xanthate (SIBX), and sodium di-ethyl dithiophosphate (SEDTP) in degrading water quality.
Effects of Sodium Iso-butyl Xanthate Dosage on the Froth Flotation …
An investigation was carried out to determine the effects of collector concentration on the grade and recovery in the flotation of middle group 1-3 Platinum Group Metal (PGM) ore mixture.
Structural Modification of Xanthate Collectors To Enhance the Flotation …
A modified xanthate compound similar to xanthogen formates, S-benzoyl O-isobutyl xanthate (BIBX), was designed by introducing a carbonyl and a benzyl group into the xanthate structure. The preparation, recovery performance, and mechanism of adsorption of this compound to chalcopyrite is discussed. BIBX was synthesized using a …
Study of xanthate decomposition in aqueous solutions
This paper focuses on Sodium iso-Butyl Xanthate (SIBX) decomposition in aqueous solutions in the absence of minerals, which is a control for other conditions. Decomposition is defined as the breakup of the xanthate anion into fragments (such as carbon disulfide or carbonyl sulfide).
Photocatalytic degradation of xanthate in flotation plant tailings …
In this paper, we draw on photocatalytic oxidation technology to treat mineral processing wastewater by synthesising TiO 2 /G composites for the degradation of butyl potassium xanthate, which is of great significance for seeking efficient and green treatment methods for flotation wastewater and mine environmental management (Fig. 1).
An Evaluation of Sodium Ethyl Xanthate for the Froth …
Evaluation of Sodium Ethyl Xanthate 16 Figure 1: Milling curve for Palabora copper ore. 2.2.2 Froth flotation The sodium ethyl xanthate collector was prepared in water at 60 g/t strength.
The Behaviour of Mixtures of Sodium Iso-Butyl Xanthate and …
It is expected that changes in the pulp chemistry would in turn affect both the pulp and froth phase phenomena, thereby affecting flotation performance. Thus, this …
Integrated ozonation and mineralization of alkyl xanthate: …
Xanthate is widely used in the flotation process of sulfide ores, and large amount of flotation wastewater with xanthate is produced and caused serious wastewater pollution due to its excessive usage.
Flotation of Gold and Gold-Bearing Ores
Optimum recovery of the auriferous sulfides was obtained with a mixture of TDM and sodium butyl xanthate, together with only a little copper sulfate as an activator in a weak alkaline pulp adjusted by sodium hydroxide. ... The depressing action of cyanide on pyrite during froth flotation is well known (Sutherland and Wark, 1955) and is widely ...
Minerals | Free Full-Text | Flotation Behavior and Synergistic
Accordingly, the flotation behaviors and adsorption mechanisms of benzohydroxamic acid (BHA) and sodium butyl-xanthate (SBX) on the surface of malachite were systematically investigated using flotation tests, zeta-potential measurements, Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, …
Effects of Sodium Iso-butyl Xanthate Dosage on The Froth Flotation …
An investigation was carried out to determine the effects of collector concentration on the grade and recovery in the flotation of middle group 1-3 Platinum Group Metal (PGM) ore mixture.
Froth Flotation Technique Method Procedure
For sulphide minerals the most commonly used collectors are the xanthates, usually potassium or sodium ethyl xanthate, and the corresponding amyl salts. For certain ores, thiocarbanilid, T-T mixture, and Aerofloat (phosphocresylic acid) are highly effective.