Interaction of sodium diisobutyl dithiophosphinate and platinum in aqueous solutions and on sulphide surface |
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Authors: | V A Chanturia T A Ivanova E V Koporulina |
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Affiliation: | (1) Institute of Problems of Complex Development of Bowels, Russian Academy of Sciences, Moscow, Russia |
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Abstract: | For the noble metal flotation reagents, the authors propose a new test method of selective adsorption on surface of minerals
covered with noble metal grains, by using a scanning electron microscope equipped with an X-ray energy-dispersive microanalyzer.
Sorption of DTPINa was recorded by SEM and thin layer chromatography on surface of platinum metal grains in the form of a
compound identical to the synthesized compound Pt(iso-C4H9)2PS2]2. It has been found that interaction of DTPI and platinum ions can run in unheated aqueous solutions at a rate sufficient
for flotation. In pH 4–9 range, the rate of platinum DTPI formation is maximal.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 2, pp. 75–84, March–April, 2009. |
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Keywords: | Flotation sorption electron microscopy synthesis noble metals platinum sulphide minerals complexing compounds flotoreagent dialkyl dithiophosphinate hexa chloroplatinate oxidation |
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