Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide) 2017-04-04T06:57:31+00:00
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Beneficiation of talc ore (3 replies and 3 comments)

1 year ago
doduroyal 1 year ago

Good day, please I need good info on talc Beneficiation. I have a large deposits of talc ore and I want to do away with the junk metals in the ore.

Javier Ramirez
1 year ago
Javier Ramirez 1 year ago
1 like by David

Glad to comment on this subject!!

My company is in the stage of confirming the feasibility to process these type of non-metallic ores.

The device we use is a gravity concentrator working under the principle of autogenous heavy media gravity separation.

The higher the metallic impurities of the talc ore, the better the cleaning efficiency.

I will present a technical paper in the XXVIII International Mineral Processing in Quebec this September. If you are able to attend the event, I shall be glad to talk with you about this technology and how it applies to your process.


Javier Ramirez

1 year ago

Javier Raminez, quite interesting for your response. I'm a bit disturbed on the processing since we have little or no experience on this more so Chinese are exploit us here in Nigeria on those materials but I quite understood that there are large market for the beneficiated talc locally and internationally. I may not be able to make it to the event you mentioned.

1 year ago
David 1 year ago

Hi doduroyal and welcome to 911Met,

Also see Talc Beneficiation Process in case it helps.

What is the " junk metals in the ore" ?  What are the assays or all metals you are processing?

1 year ago

what I referred to as junk metals are unwanted materials - gangue . the talc orr has iron in it

1 year ago
David 1 year ago

doduroyal, we understand junk metals are unwanted materials, but what are they specifically and how much?  Do you have assays?  I need to know the details if you want clear help.  How much and what metals you have will affect the process.

You say "iron in it" - what form?  Pyrite?  Oxide/Sulphide?

Volumetrically, if you have majority Talc in your ore, you will be best to float the metals (if they are floatable).  You float while you depress the talc this was

If you have more metal VS talc you can depress the metals (sulphides) and float the talc.  You depress the sulphide be dropping the pH under 5 using Sodium metabisulfite Na2S2O5

Here are examples of talc separation tests I ran years ago.

Talc Separation

1 year ago

the analysis of the talc shows SiO2 54.10%, MgO 29.90%, CaO 1.7%, Fe2O2 6.80%

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