Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide)

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Beneficiation of talc ore (3 replies and 3 comments)

D
doduroyal
8 years ago
doduroyal 8 years 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.

J
Javier Ramirez
8 years ago
Javier Ramirez 8 years ago
Like
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.

Regards

Javier Ramirez

D
doduroyal
8 years 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.

David
8 years ago
David 8 years ago
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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?

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doduroyal
8 years ago

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

David
8 years ago
David 8 years ago
Like

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 https://www.911metallurgist.com/blog/talc-mgo-depression-depressants

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

D
doduroyal
8 years ago

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

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