One from АUSTRALIAN UNIVERSITY wrote

One from Australian University wrote that he conducted experiments with porphyry ore: "... this particular ore had no 'floating silicates'."

I answered: "I do not believe!"

Porphyry ores contain about 30% flotation active silicate , which have excellent flotation activity. These flotation active silicates floated much better and faster than sulfides. How does your model take into account this fact?

You want to say that that your porphyry ore does not contain any of the flotation active silicate?
Share your experience, where to find the porphyry ore, which does not contain flotation active silicate:  talc, pyrophyllite, steatite, chlorite, sericite, muscovite, biotite, phlogopite, Illit, kaolinite, bentonite, smectite, serpentine, hornblende, actinolite and many others

We also want to work with almost perfect ore!

I do not believe that your ore did not contain these minerals. Consequently, your work is a mistake, and the model is not adequate.
Good luck
Ph.D. Natalia Petrovskaya

P.S. I developed a "Classification of the silicates" according to their flotation properties in 2014. You can get acquainted with it.

 

P.S.S. Recently in 2017, I received a letter that they found silicates in copper concentrate at the "ANTOFAGASTA MINERALS".

 

That is, my "Classification of the silicates" is functioning.

 

Ph.D. Natalia Petrovskaya