TY - GEN
T1 - An AFM study of the adsorption of collector on bornite
AU - Zhang, J.
AU - Zhang, W.
N1 - Funding Information:
AcX.rio~~leil~rt~Tehtti~s .research was supported in part by the National Science Council of the
Publisher Copyright:
Copyright © 2016 by SME.
PY - 2016
Y1 - 2016
N2 - The adsorption of collector on bomite has been studied in situ in aqueous solutions by applying an atomic force microscopy (AFM). The AFM images show that xanthate, such as potassium ethyl xanthate (KEX) and potassium amyl xanthate (PAX), adsorbs strongly on bomite mainly in the form of insoluble metal xanthate, which binds strongly with the mineral surface without being removed by flushing with ethanol alcohol. This adsorption mechanism is very similar to the one obtained with chalcocite/xanthate system. However, the result also clearly shows that the adsorption of xanthate on bomite is totally different from its adsorption on chaicopyrite, during which oily dixanthogen is the main adsorption product on chaicopyrite surface. The obtained AFM images also showed that the adsorption increases with increasing the collector's concentration. When Cytec Aerofloat 238, a dialkyl dithiophosphate collector, is used, it adsorb on bomite mainly in the form of an oily substance, which can be rinsed off mineral surface by flushing with ethanol alcohol. AFM images also show that the adsorption of Cytec Aerofloat 238 increases with increasing the adsorption time.
AB - The adsorption of collector on bomite has been studied in situ in aqueous solutions by applying an atomic force microscopy (AFM). The AFM images show that xanthate, such as potassium ethyl xanthate (KEX) and potassium amyl xanthate (PAX), adsorbs strongly on bomite mainly in the form of insoluble metal xanthate, which binds strongly with the mineral surface without being removed by flushing with ethanol alcohol. This adsorption mechanism is very similar to the one obtained with chalcocite/xanthate system. However, the result also clearly shows that the adsorption of xanthate on bomite is totally different from its adsorption on chaicopyrite, during which oily dixanthogen is the main adsorption product on chaicopyrite surface. The obtained AFM images also showed that the adsorption increases with increasing the collector's concentration. When Cytec Aerofloat 238, a dialkyl dithiophosphate collector, is used, it adsorb on bomite mainly in the form of an oily substance, which can be rinsed off mineral surface by flushing with ethanol alcohol. AFM images also show that the adsorption of Cytec Aerofloat 238 increases with increasing the adsorption time.
UR - https://www.scopus.com/pages/publications/84988433366
UR - https://www.scopus.com/inward/citedby.url?scp=84988433366&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84988433366
T3 - 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World
SP - 604
EP - 610
BT - 2016 SME Annual Conference and Expo
PB - Society for Mining, Metallurgy and Exploration
T2 - 2016 SME Annual Conference and Expo: The Future for Mining in a Data-Driven World
Y2 - 21 February 2016 through 24 February 2016
ER -