Saturday 6 October 2018

I believe my correct calculations, but I don’t believe 100 likes

Francois Vos (Specialist Metallurgist at CMOC-Northparkes Mines, Australia) wrote  "Particle attributes and flotation circuit modelling - the distribution of exposed hydrophobic mineral grains"

I wrote: "Hi. Francois Vos. Would you say that your ore does not contain any of the flotation active silicate ? Share your experience, where to find the porphyry ore, which does not contain:  Talc, pyrophyllite, steatite, chlorite, sericite, muscovite, biotite, phlogopite, Illita, kaolinite, bentonite, smectite, serpentine, hornablenda, actinolite
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."

He answered me: "Natalia Petrovskaya, Ph.D. - Those 'floating silicates' present were not there in significant quantities and hence their locking with copper minerals was VERY rare. The data presented focused on the texture of copper mineral bearing particles and primarily contained hydrophilic silicates, and not the 'floating silicates' you mentioned. What model are you referring to? The post presents no model, merely the results of what was measured from plant data, after doing statistical analysis to support the confidence in the outcomes."

I wrote: "Francois Vos You wrote "'floating silicates' present were not there in significant quantities" How much is this? You wrote "flotation circuit modelling" What did you mean? 
 ... Francois Vos wrote about the porphyry ore: "Those 'floating silicates' present were not there in significant quantities and hence their locking with copper minerals was VERY rare." 
 I answered: "You are very much mistaken." 
Molybdenite was in insignificant quantities. You ignored it. Chalcocite, chalcopyrite and bornite were in insignificant quantities too.. Silicates make up more than 75.90 %. Flotation active silicates account for about 30%. 
You do not take into account the composition of the ore. Therefore you do the wrong conclusions.

... I asked a few questions to the author of fasting. I did not get meaningful answers to my questions. 
The author can not answer the questions, it does not mean guided in this matter. 
However, the author of the post sent me a private message: "....make an effort to get a copy of the thesis and read the whole document." 
Why did he send me a private message, but did not respond publicly? He did not respond to my questions in this message, too .. 
I do not need to read his thesis. I can conclude on the basis of the article, that this work is has not practical. 

I don't like when they fool the people."

Ph.D. Natalia Petrovskay, 2017


https://www.linkedin.com/pulse/particle-attributes-flotation-circuit-modelling-distribution-vos/

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