2011 2nd International Conference on Chemistry and Chemical Engineering IPCBEE vol.14 (2011) (2011) IACSIT Press, Singapore -5 стр.
Abstract: Examination of flotation reagents suitable for a nickel concentrator plant was investigated using nickel sulphide ore. A number of different new reagents were examined for the best suit for the nickel concentrator plant. It was found that more nickel was found on the magnetic particles, which were assumed
to be mostly pyrrhotite. A dosage of 50 g/t was found to be a suitable dose for the collector Betacol 380 AC
and gave the best results, however, it was found to be expensive. Betacol 380 AB was found to be suitable at
a dose of 75% g/t. There was no flotation improvement when depressants were used in conjunction with
Betacol 380 AC. An activator (copper sulphate) was found to improve the grade of copper, nickel and iron
meaning it activated pentlandite. The ions improved the flotability of sulfides at the normal process pH after
grinding in steel mill.
Introduction
Froth flotation is widely used for separating sulphide minerals in complex ores. Reagents represent the
strongest and most flexible variable of interactions in flotation processes. In fact, they determine the
necessary flotability and productivity in the flotation process. The theory of action of flotation reagents is
therefore of great practical significance. However, despite many years of investigations, the theory is still not
sufficiently developed to deal with all problems arising in flotation practice
