Although the model has been tested against only a limited amount of data the results shown in Figure 6 suggest that the model can be used to predict the flotation of fine particles in a column. The major advantage of the model is its ability to independently examine the influence of operational parameters on the … Read more

Are design or custom blends better than standard and cheaper fuel oil?  Because of the high cost of the ‘designer or custom blend’ reagents, a test was run to determine the economical difference between 3302 and diesel. The evaluation was done with sulfide and transition ores, by treating a freshly prepared sample composite of both … Read more

Where is Molybdenum best collected by its collector, Grinding or Conditioning? The protocols of the testwork were done such that a comparison could be made between adding the Moly collector at the milling stage versus the conditioning stage. As shown, the proper addition point for the Moly collector is at the grinding stage. The Moly recovery improvement is … Read more

Graphic Conclusions of this particular set of flotation tests: Copper – Irrelevant of pH, with enough float time and reagents, you usually reach a terminal bulk rougher Cu recovery in the low 90s (Green Box) – pH 10.3 gives you that terminal recovery in less mass (9%), more selectively, at a higher Conc grade (2.5%) … Read more

Here is a Proven Cu Mo Separation Circuit Flowsheet (by flotation) many will model after. It is used a Canada’s largest copper-molybdenum mine. It uses NaSH and Nitrogen.

The copper-moly separation circuit was modelled using the test kinetics. The circuit was configured to include columns in every stage in order to minimize the amount of entrainment and to maximize the washing effect of the molybdenum concentrate. The circuit was designed with long retention times so that it could be operated with a slow … Read more