De Wet, J. R. published the artcileThe influence of cyanide on the flotation of pyrite from Witwatersrand gold leach residues, Recommanded Product: Dodecylamineacetate, the publication is Minerals Engineering (1995), 8(11), 1333-45, database is CAplus.
A significant portion of the gold in Witwatersrand ores may occur in the pyritic fraction, which seldom comprises >4% of the ore. Consequently, pyrite recovery through flotation offers an opportunity to increase gold recovery through further treatment of the concentrate The traditional processing routes are no longer economically viable due to the high cost of acid treatment to overcome the depressing influence of cyanide on xanthate flotation. Amines were identified as possible alternative collectors for pyrite flotation in the presence of cyanide. The influence of cyanide on pyrite flotation with dodecylamine acetate (I) was investigated by using electrochem. impedance measurements, flotation tests, and in-situ Raman spectroscopy. Cyanide acted as a slight depressant or no depressant at all for the flotation of pyrite with I, a much smaller effect than that which cyanide has on pyrite flotation with xanthate. In pH 11 solutions, pyrite electrodes exhibited a lower interfacial capacitance in the presence of I and reflect the formation of a layer on the electrode surface by adsorption of the cationic amine collector on the pyrite surface. At cyanide concentrations typical of gold leaching, this capacitance decrease is not observed and probably reflects an inhibiting effect of cyanide on amine adsorption. Raman spectroscopy measurements demonstrated a strong pH effect on amine adsorption and little effect of cyanide in broad agreement with flotation tests and electrochem. impedance measurements.
Minerals Engineering published new progress about 2016-56-0. 2016-56-0 belongs to catalysis-chemistry, auxiliary class Active Esterification, name is Dodecylamineacetate, and the molecular formula is C14H31NO2, Recommanded Product: Dodecylamineacetate.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia