The blended co-collector system serves to reduce the dosage
of hydroxamate significantly while maintaining a similar level
of TiO2 removal and clay yield. The industrial implication is
a lower collector cost since the hydroxamates are more expensive
than the tall oil. Table 5 illustrates that the co-collector of
hydroxamate and tall oil removes the same amount of anatase
as the individual collectors. However, the efficiency of the cocollector
system is the same (measured by the coefficient of separation)
of the hydroxamate chemistry while using only half of the
dosage of alkyl hydroxamates and only one-third of the dosage of
tall oil.