Froth Flotation (Sulphide & Oxide)

Froth Flotation (Sulphide & Oxide)2017-04-04T06:57:31-04:00
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Started by Maya Rothman
I would like know if anybody has studied the relationship of flotation efficiency in function of feed grade of ore, normally system set for a defined grade, what happen if the grade varies?  About efficiency for me, flotation RECOVERY is importan...
Last commented on by Kwesi Amebley
Hello Bob, i am about to conduct investigation along liberation and consequence on flotation for a gold plant. I will appreciate it if I can contact you so you can share some of experience with me. My...
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Started by Maya Rothman
I'm wondering if any members out there have Designed and are operating a repulping circuit for sulphide concentrate and would I be interested in details of the specific unit operations used (repulping screens vs trommels, feed mechanisms etc) and th...
Last replied to by Sturmbann
Thanks for taking the time to write your comments here. Much appreciated. I can sympathize with "running the pig". Have had to put lipstick on many "pig" unit operations as an operator and then Met ov...
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Started by
Can anyone please tell me which Flotation Reagents are being used in major concentrators in Zambia and the Democratic Republic of Congo (DRC)?
Last replied to by
1) For the Copper-Cobalt sulphides ores treatment: Frothers (Sasfroth G41, Dowfroth or FQZ 8), Collectors (Sodium ethyl xanthate, Sodium isopropyl xanthate or MX 150).a) If the ores contains too much...
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Started by Helena Russell
Can anyone tell me of an operating mine floating 4 concentrates - Cu, Pb, Zn and Pyrite?  I was thinking on the pyrite concentrate for environmental purpose - to mitigate risk of ARD.This search is a little more complicated to find than anticipated...
Last replied to by
If copper is in oxidised form then it is easy to leach. 1st float lead copper --separate lead from copper. Then 2nd stage float Zinc. Pyrite can be depressed using cyanide in all concentrates.
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Started by Maya Rothman
Fluorite flotation: please anybody suggest good depressants for silica and calcite in fluorite flotation.My specs are now:  Raw fluorspar has CaF2 =60%, CaCO3=19.5% and SiO2=9.7%, I am already using water glass, pH=10, with oleac acid as collecter...
Last replied to by JohnnyD
Many people failed to depress silica. The answer for Natalia's comment, is that we do not have 100% pure silica, it is in interlocked form. It also behaves like fluorite due to interlocking. Fine grin...
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Started by
Hello, in the flotation of Platinum Group Metal Ores, is it considered wise or cost effective to introduce pH control?  Is there any mine that mine PGMs that does pH control in their metallurgical plants?The reason why i ask is because i did some t...
Last replied to by David
Great papers Effect of pH on the Recovery and Grade of Base Metal Sulphides (PGMs) by Flotation and a Patent on  FLOTATION OF PLATINUM GROUP METAL ORE MATERIALS
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Started by Helena Russell
I am processing copper ores with high carbon content (shale).  The feature of the flotation foam large bubbles with high surface tension. I'm looking for a reagent that can help decrease the stability of the bubble, but that does not affect the reco...
Last commented on by David
And hopefully the grain size it not ultra-fine to the point where carbon is smeared all over the key sulfides. If you loose to my good sulfides, you can re-clean that (collector-free) using SMBS to k...
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Started by Bob Mathias
I am looking for support and suggestions on how to go about further development and placement of our in mineral processing innovation, given that we are a small engineering and research firm trying to figure out how to knock on right doors and talk t...
Last replied to by David
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Started by Victor Bergman
Our mineralogy are very complex with: chalcopyrite, bornite, chalcocite tennantite, malachite, sphalerite I and II, pyrite, galena, chalcocite, covellite, gray copper, magnetite. It also have soluble salts of Cu, Fe, Pb, Zn.We have flotation bulk, co...
Last commented on by Victor Bergman
Thanks for your comments, I am going to review your suggestions in the blog, but the problem is the salts of Cu, Pb, Fe, Zn. and we need to change the chemistry of flotation in our operations.
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Started by Helena Russell
Am looking at what can be used to depress pyrite in sulphide ore without affecting copper recovery greatly. Am currently undertaking a project on the depression of pyrite, am trying to use aeration and milling at high pH and its proving to work but a...
Last replied to by Helena Russell
I have been following very well and i did reply to the questions posed whether i know the mineralogy of the ore very well and if it was fully liberated at the grind size am operating at,,,most of all ...
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Started by
I have encountered a problem for my project. I am working on mechanical flotation of barite and calculating its selectivity indices. I need to know how could I derive/calculate barite grade in both tailing and concentration for every flotation test w...
Last replied to by
Thank you guys
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Started by Maya Rothman
How can one recover molybdenum from both copper oxide and sulphide concentrates?
Last replied to by Bob Mathias
The economies of the process must be considered in parallel with the chemical/mineralogical aspects. Frequently, making a very high grade concentrate is counterproductive. It is mentioned in several o...
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Started by
Using applied statistics to improve plant performance, an increase in Silver Recovery was obtained/improved by optimization. I have done the same in several mines. Lean tools and six sigma work well in the mining environment.What keeps surprising m...
Last replied to by
Decisions in the mining industry are not supported by data, in general. Even in companies that promote data driven decision. The support needs to come from the top.I can help optimize a reagent suite ...

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