Effect of physico-chemical characteristics of surfactant emulsion on antimony oxide flotation

Xiao, Liping; Liao, Pinjun; Hu, Weibai

doi:10.1016/0166-6622(87)80121-x

Cited by 9 publications

(6 citation statements)

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“…Adsorption of surfactants on metal oxides is a topic of great academic and industrial interest because of their importance in many processes such as detergency, mineral flotation, and oil recovery. 1 Extensive work has been done to understand the process of adsorption of surfactants on oxides. 2 Nonaqueous colloidal dispersions are widely being used in a number of important technological processes.…”

Section: Introductionmentioning

confidence: 99%

A Study on Adsorption of Surfactant Molecules on Magnesium Oxide Nanocrystals Prepared by an Aerogel Route

Jeevanandam

Klabunde

2002

Langmuir

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Adsorption of surfactant molecules, cationic as well as anionic, has been carried out on nanocrystals of magnesium oxide, prepared by an aerogel route (AP-MgO). Aerosil OT (AOT) and didodecyl dimethylammonium bromide (DDAB) have been chosen as examples of anionic surfactant and cationic surfactant, respectively. The adsorption studies were mainly carried out in nonaqueous media. For comparison, adsorption experiments were also carried out for two other magnesium oxide samples, namely, conventionally prepared MgO (CP-MgO) and commercial MgO (CM-MgO), which consist of microcrystals. The adsorption properties of the surfactants have been studied by determining the adsorption isotherms. The results have been interpreted on the basis of the fact that nanocrystals possess increased surface reactivity compared to microcrystals and particle shapes do have a role to play.

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Section: Introductionmentioning

confidence: 99%

A Study on Adsorption of Surfactant Molecules on Magnesium Oxide Nanocrystals Prepared by an Aerogel Route

Jeevanandam

Klabunde

2002

Langmuir

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“…These were flotation with a fatty acid as collector, sulphidization in strongly acidic conditions followed by flotation with a xanthate collector, and conditioning with modifiers (Na 2 SiO 3 , NaSiF 6 ) and then flotation with a combination of reagents (oleate + neutral oil or fatty alcohol or soap + tall oil). Lager and Forssberg (1989a) and Xiao et al (1987) both reported a Chinese study of the flotation behaviour of Sb 2 O 4 .H 2 O. This study measured the pzc (point of zero charge) of the mineral as pH 1.9 and demonstrated that the flotation process was controlled by the surface charge of the mineral.…”

Section: Antimony and Antimony Oxidesmentioning

confidence: 96%

“…Lager and Forssberg (1989a) and Xiao et al (1987) both reported a Chinese study of the flotation behaviour of Sb 2 O 4 .H 2 O. This study measured the pzc (point of zero charge) of the mineral as pH 1.9 and demonstrated that the flotation process was controlled by the surface charge of the mineral.…”

Section: Antimony Mineralogy and Flotation Behaviourmentioning

confidence: 98%

“…In general, gravity concentration has been used for the processing of antimony oxides. While there have been some flotation processes developed in the laboratory for antimony oxide ores, none of these processes have been applied in commercial plants (Xiao et al 1987). It was observed in treating the Hermada ore, that the oxide minerals did not respond to the lead acetate-xanthate reagent combination used to float stibnite (Oberbillig 1964).…”

Section: Antimony and Antimony Oxidesmentioning

confidence: 99%

“…It was observed in treating the Hermada ore, that the oxide minerals did not respond to the lead acetate-xanthate reagent combination used to float stibnite (Oberbillig 1964). Xiao et al (1987) reported Russian studies processing an antimony oxide ore that used three flotation methods. These were flotation with a fatty acid as collector, sulphidization in strongly acidic conditions followed by flotation with a xanthate collector, and conditioning with modifiers (Na 2 SiO 3 , NaSiF 6 ) and then flotation with a combination of reagents (oleate + neutral oil or fatty alcohol or soap + tall oil).…”

Section: Antimony and Antimony Oxidesmentioning

confidence: 99%

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Rejection of antimony and bismuth in sulphide flotation – a literature review

Smith¹,

Bruckard²,

Sparrow³

2021

Mineral Processing and Extractive Metallurgy

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Rejection of deleterious impurity minerals containing antimony and bismuth from sulphide deposits by flotation has been reviewed. The key antimony minerals of commercial interest to remove are stibnite, tetrahedrite, and jamesonite, while the main bismuth mineral is bismuthinite. The most promising methods for separating antimony and bismuth minerals from sulphide ores are based on pH and/or pulp potential adjustments or the use of starvation levels of collector. Stibnite has been floated with xanthate, dithiophosphates and thionocarbamates in acidic conditions, but floatability decreased with increasing pH. Antimony minerals are activated with lead and copper salts and depressed with an oxidant (e.g. H 2 O 2 or Na 2 Cr 2 O 7 ). Bismuth minerals can float strongly between pH 3 and 7 with a xanthate collector but floatability decreased sharply at pH values above pH 7. Molybdenite is separated from bismuth minerals by depressing them with reducing agents such as sodium sulphide, while cyanide depresses chalcopyrite.

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Flotation and Surfactants in the Remediation of Polluted Soil and Related Applications

Brüning

Visser

Rulkens

1995

Contaminated Soil ’95

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Effect of physico-chemical characteristics of surfactant emulsion on antimony oxide flotation

Cited by 9 publications

References 0 publications

A Study on Adsorption of Surfactant Molecules on Magnesium Oxide Nanocrystals Prepared by an Aerogel Route

A Study on Adsorption of Surfactant Molecules on Magnesium Oxide Nanocrystals Prepared by an Aerogel Route

Rejection of antimony and bismuth in sulphide flotation – a literature review

Flotation and Surfactants in the Remediation of Polluted Soil and Related Applications

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