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46
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3568
VIEWS
Started by Sudhirkumar
What’s the suggestion for depression of such these pre-activated sphalerite that comes in Pb concentrate?One possible thought that cause this problems is recycling water, so I insist that many laboratory analysis with fresh water reject this though...
What’s the suggestion for depression of such these pre-activated sphalerite that comes in Pb concentrate?One possible thought that cause this problems is recycling water, so I insist that many laboratory analysis with fresh water reject this though...
25
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5126
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Started by
What are you using for your Pulp level monitoring in your cells and sumps?Just wanted to see what options are around?
What are you using for your Pulp level monitoring in your cells and sumps?Just wanted to see what options are around?
Last commented on by Raymond Karsten
Goo morning, some time back we had a discussion on this forum about the lTM-2 level probe that we market. Since then the product has grown in leaps and bounds with huge successes worldwide. It is an e...
Goo morning, some time back we had a discussion on this forum about the lTM-2 level probe that we market. Since then the product has grown in leaps and bounds with huge successes worldwide. It is an e...
31
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5568
VIEWS
Started by Obergruppenfuhrer
Have you ever dealt with a Cu/Pb/Zn ore which has a lot of carbon in its composition?Can someone provide some ideas of how to deal with carbon? We have been trying to float carbon using MIBC, and only after stage this we were able to generate adequat...
Have you ever dealt with a Cu/Pb/Zn ore which has a lot of carbon in its composition?Can someone provide some ideas of how to deal with carbon? We have been trying to float carbon using MIBC, and only after stage this we were able to generate adequat...
12
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3702
VIEWS
Started by Tarun Karakoti
I’m looking for copper concentrate plants that use sodium cyanide as a depressant for pyrite in the flotation of copper. Does anyone have experience in this case?
I’m looking for copper concentrate plants that use sodium cyanide as a depressant for pyrite in the flotation of copper. Does anyone have experience in this case?
11
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2030
VIEWS
Started by Sandeep Bisht
As you know in flotation of sedimentary Phosphate deposits, the main problem is similarity of Phosphate and carbonate properties. The Question is this: what other minerals have same properties between Valuable and gangue minerals?
As you know in flotation of sedimentary Phosphate deposits, the main problem is similarity of Phosphate and carbonate properties. The Question is this: what other minerals have same properties between Valuable and gangue minerals?
8
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3051
VIEWS
Started by
Does anyone know of any commercial operations employing forward flotation of limestone using oleic acid or sodium oleate? I am aware that there are several flotation plants in Europe and North America treating limestone using reverse flotation by ami...
Does anyone know of any commercial operations employing forward flotation of limestone using oleic acid or sodium oleate? I am aware that there are several flotation plants in Europe and North America treating limestone using reverse flotation by ami...
Last replied to by Mr. Nanda kishore
If the limestone grade is almost high and contains above 90% CaCO3, then in direct flotation more reagent is required for collecting all limestone mineral. But if u r not concern about reagent cost, t...
If the limestone grade is almost high and contains above 90% CaCO3, then in direct flotation more reagent is required for collecting all limestone mineral. But if u r not concern about reagent cost, t...
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2204
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Started by gallala
I would develop the treatment of phosphate with saline water.Please let me know what you think about the use of salted sea water as process water for carbonate and siliceous phosphate beneficiation.
I would develop the treatment of phosphate with saline water.Please let me know what you think about the use of salted sea water as process water for carbonate and siliceous phosphate beneficiation.
Last replied to by
Using sea water can have some drawbacks; first corrosion of equipment would occur unless special materials were used for the flotation vessels and secondly without large reagent additions, your flotat...
Using sea water can have some drawbacks; first corrosion of equipment would occur unless special materials were used for the flotation vessels and secondly without large reagent additions, your flotat...
17
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5363
VIEWS
Started by Mostafa
Dear David,hope you are fine,and i have an very important question about Denver DR flotation machine can i use it in paper de-inking process as a flotation cell because the microprocess are the same in mineral flotation and de-inking flotation a...
Dear David,hope you are fine,and i have an very important question about Denver DR flotation machine can i use it in paper de-inking process as a flotation cell because the microprocess are the same in mineral flotation and de-inking flotation a...
Last replied to by Bob Mathias
Yes the application of flotation for deinking in the recycled paper industry has attracted much attention in recent years. By its chemical nature, ink is sufficiently hydrophobic and docs not require ...
Yes the application of flotation for deinking in the recycled paper industry has attracted much attention in recent years. By its chemical nature, ink is sufficiently hydrophobic and docs not require ...
1
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1679
VIEWS
Started by dimanmarfi
hi what is method is used for determination amount of collector, frother, depressant, activator, ... in lead - zinc flotation on industrial scale? what is relationship between particle size of ore in pulp and aeration and stator speed ? th...
hi what is method is used for determination amount of collector, frother, depressant, activator, ... in lead - zinc flotation on industrial scale? what is relationship between particle size of ore in pulp and aeration and stator speed ? th...
5
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2183
VIEWS
Started by AAK
Hello, could someone please give me a hint on this problem. We have scheelite concentrate with some amount of zircon, which rises radioactivity above desired limits. Our last operation in producing scheelite is flotation of sulfides, which we carr...
Hello, could someone please give me a hint on this problem. We have scheelite concentrate with some amount of zircon, which rises radioactivity above desired limits. Our last operation in producing scheelite is flotation of sulfides, which we carr...
Last replied to by David
Hi Anton, best get a copy of http://www.academia.edu/22691019/Handbook_of_Flotation_Reagents_Chemistry_Theory_and_Practice_Flotation_of_Sulfide_Ores
Hi Anton, best get a copy of http://www.academia.edu/22691019/Handbook_of_Flotation_Reagents_Chemistry_Theory_and_Practice_Flotation_of_Sulfide_Ores
9
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Started by Rahil Khan
I want to compare the performance of Cylindrical Tank Cell vs. U tank rectangular mechanical flotation cell.I have worked in Pb Zn beneficiation plant where we had both Cylindrical and U rectangular tank mechanical flotation cell. And in my opinion, ...
I want to compare the performance of Cylindrical Tank Cell vs. U tank rectangular mechanical flotation cell.I have worked in Pb Zn beneficiation plant where we had both Cylindrical and U rectangular tank mechanical flotation cell. And in my opinion, ...
Last replied to by Rahil Khan
Regarding silver recovery comparison, should be followed post to the attaining of similar liberation level feed.
Regarding silver recovery comparison, should be followed post to the attaining of similar liberation level feed.
13
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Started by Standartenfurer
What are the pros and cons of utilizing standard flotation cells verses flotation columns in the extraction of gold and copper?
What are the pros and cons of utilizing standard flotation cells verses flotation columns in the extraction of gold and copper?
Last replied to by Ashish Kumar
Dear AllI will be very pleased if any body give this book (C.C. Dell, Release Analysis - A New Tool for Ore Dressing Research) to my mail id: ashishkmr.osme@gmail.comResearch InternCSIR-NML, Chennai...
Dear AllI will be very pleased if any body give this book (C.C. Dell, Release Analysis - A New Tool for Ore Dressing Research) to my mail id: ashishkmr.osme@gmail.comResearch InternCSIR-NML, Chennai...
5
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2456
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Started by Amar
Please guide me about the effect of water quality & water chemistry on flotation. We use methyl isobutyl carbinol (MIBC) as frother & amyl xanthate potassium (PAX) as collector. What is the effect of salinity on PAX & MIBC properties?
Please guide me about the effect of water quality & water chemistry on flotation. We use methyl isobutyl carbinol (MIBC) as frother & amyl xanthate potassium (PAX) as collector. What is the effect of salinity on PAX & MIBC properties?
Last replied to by
Water quality is not a major issue in floating pyrite as demonstrated by numerous operations pH needs to be ideally controlled to the acid to neutral range and often copper sulphate is employed to imp...
Water quality is not a major issue in floating pyrite as demonstrated by numerous operations pH needs to be ideally controlled to the acid to neutral range and often copper sulphate is employed to imp...
12
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3307
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Started by
Someone have information related with problems associated with excessive froth in a Gold sulfides ore in flotation and Alunite Activation?
Someone have information related with problems associated with excessive froth in a Gold sulfides ore in flotation and Alunite Activation?
Last replied to by David
see https://www.911metallurgist.com/froth_flotation/excessive-frothing-at-cleaner-flotation-for-low-grade-gold-sulphide-ores
see https://www.911metallurgist.com/froth_flotation/excessive-frothing-at-cleaner-flotation-for-low-grade-gold-sulphide-ores
10
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3329
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Started by Emmanuel Mmole
Hello!I am a BSc. Metallurgy and Mineral Processing Engineering student at the University of Dar es Salaam working on a dissertation project at ACACIA mining - Bulyanhulu gold mine limited.The project is entitled "Review of flotation behaviour of LO...
Hello!I am a BSc. Metallurgy and Mineral Processing Engineering student at the University of Dar es Salaam working on a dissertation project at ACACIA mining - Bulyanhulu gold mine limited.The project is entitled "Review of flotation behaviour of LO...
Last commented on by David
http://www.quadra.ca/uploadedFiles/Chemicals_Website/Industries/Mining/Huntsman.pdf OR http://www.flottec.com/Prd/Docs/Flottec_F100_Series_Frothers_Product_Data_Sheet.pdf The F173 is great.
http://www.quadra.ca/uploadedFiles/Chemicals_Website/Industries/Mining/Huntsman.pdf OR http://www.flottec.com/Prd/Docs/Flottec_F100_Series_Frothers_Product_Data_Sheet.pdf The F173 is great.
13
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2519
VIEWS
Started by Maya Rothman
The problem is that these units run under very different conditions to most primary cyclones, generally with lower % solids feed and a much tighter size range (P100 less than 300 microns). What we were interested in is predicting water and solids spl...
The problem is that these units run under very different conditions to most primary cyclones, generally with lower % solids feed and a much tighter size range (P100 less than 300 microns). What we were interested in is predicting water and solids spl...
Last replied to by Rahil Khan
Innovative technology to reduce over grinding:After 20 years of experience in Flotation and grinding, we were given a challenging task by both Govt of INDIA and HZL (VEDANTA NOW). How to reduce silica...
Innovative technology to reduce over grinding:After 20 years of experience in Flotation and grinding, we were given a challenging task by both Govt of INDIA and HZL (VEDANTA NOW). How to reduce silica...
22
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4095
VIEWS
Started by Tarun Karakoti
What can be used to depress pyrite in sulphide ore without affecting copper recovery greatly? I am currently undertaking a project on the depression of pyrite, am trying to use aeration and milling at high pH. It’s proving to work but at the expens...
What can be used to depress pyrite in sulphide ore without affecting copper recovery greatly? I am currently undertaking a project on the depression of pyrite, am trying to use aeration and milling at high pH. It’s proving to work but at the expens...
Last replied to by Sudhirkumar
Good to see your reply. Thank you. Come back after knowing liberation size. It should be 80% liberated, not 100%. Or else all particles will go in to submicron size which is very tough to float.Or Lib...
Good to see your reply. Thank you. Come back after knowing liberation size. It should be 80% liberated, not 100%. Or else all particles will go in to submicron size which is very tough to float.Or Lib...
23
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4029
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Started by Sudhirkumar
What's your suggestion for pyrite depressant in flotation of Sulfide Lead & Zinc ore type? We are running flotation Sulfide Lead & Zinc ore type that has high dosage of pyrite in that ore. We depress pyrite with cyanide but it has a dangerous EHS e...
What's your suggestion for pyrite depressant in flotation of Sulfide Lead & Zinc ore type? We are running flotation Sulfide Lead & Zinc ore type that has high dosage of pyrite in that ore. We depress pyrite with cyanide but it has a dangerous EHS e...
Last replied to by Raje Singh
Cost benefit analysis for liberating interlocked pyrite:Yes it was economical; by consuming few KW we could upgrade ore by additional 2%. From 50 to 52%Zn, and recovery by 1% which is highly economica...
Cost benefit analysis for liberating interlocked pyrite:Yes it was economical; by consuming few KW we could upgrade ore by additional 2%. From 50 to 52%Zn, and recovery by 1% which is highly economica...
10
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1800
VIEWS
Started by Jean Rasczak
Anyone has case study on successful application of statistics for improving flotation plant performance. Using applied statistics to improve plant performance lots of opportunities out there.
Anyone has case study on successful application of statistics for improving flotation plant performance. Using applied statistics to improve plant performance lots of opportunities out there.
Last replied to by Obersturmbann
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 to optimize a reagent su...
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 to optimize a reagent su...
6
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1378
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Started by
It is a well-knownphenomenon that every operations metallurgist knows, that the full scale grinding circuit over grinds higher density minerals/elements in a manner that reduces the grade of those minerals/elements in the coarse size fractions and co...
It is a well-knownphenomenon that every operations metallurgist knows, that the full scale grinding circuit over grinds higher density minerals/elements in a manner that reduces the grade of those minerals/elements in the coarse size fractions and co...
Last replied to by Raje Singh
Yes this is a good IDEA. Yes we can use data from lab to plant. But it should be a PILOT PLANT with continuous operation for at least 4 to 6 hrs daily. Case study- We developed a flow sheet based on p...
Yes this is a good IDEA. Yes we can use data from lab to plant. But it should be a PILOT PLANT with continuous operation for at least 4 to 6 hrs daily. Case study- We developed a flow sheet based on p...
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2722
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Started by Helena Russell
I was wondering if someone share if you have experienced the same problem.Every year when the temperature starts to drop (below 10'C) we experience a frothing andoverly stable froth problem on our platinum flotation (BMS float) circuit. What ever is...
I was wondering if someone share if you have experienced the same problem.Every year when the temperature starts to drop (below 10'C) we experience a frothing andoverly stable froth problem on our platinum flotation (BMS float) circuit. What ever is...
Last replied to by Rahil Khan
Sorry we don't have experience at this temperature. But we did R&D in commercial COLUMN FLOTATION. Minute bubbles of 1mm were washed with shower of low pressure water on froth bed of 500 to 1000mm thi...
Sorry we don't have experience at this temperature. But we did R&D in commercial COLUMN FLOTATION. Minute bubbles of 1mm were washed with shower of low pressure water on froth bed of 500 to 1000mm thi...
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3410
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Started by
Does anyone have any experience with using pyrrhotite depressants in polymetallic ore flotation? What products did you use and how effective was it?
Does anyone have any experience with using pyrrhotite depressants in polymetallic ore flotation? What products did you use and how effective was it?
Last replied to by
Cyanide depresses as carriers of copper. It is not recommended in the case of copper ores. The lime with the selective collectors is most advisable.
Cyanide depresses as carriers of copper. It is not recommended in the case of copper ores. The lime with the selective collectors is most advisable.
17
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3508
VIEWS
Started by
I want to float arsenic from ore of this composition 10% Sb, 2.6 g/t Au and 0.78% As with differential flotation, what can I use
I want to float arsenic from ore of this composition 10% Sb, 2.6 g/t Au and 0.78% As with differential flotation, what can I use
Last replied to by Oberstorm
10% Sb content in excavating Sb-ore? It is for manual sorting! I was fighting with 1.5% in my floatation plant - if we have higher Sb content we had to diluted inflow material into flotation plant (fo...
10% Sb content in excavating Sb-ore? It is for manual sorting! I was fighting with 1.5% in my floatation plant - if we have higher Sb content we had to diluted inflow material into flotation plant (fo...
18
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2209
VIEWS
Started by Amar
What do you suggest for improving the recovery in flotation of Lead in Lead & Zinc (10% vs. 25%) ore types that consist a high amount of Lead lower than 30um. Basically this ore consist of Fe minerals that rarely influence in flotation procedure. Th...
What do you suggest for improving the recovery in flotation of Lead in Lead & Zinc (10% vs. 25%) ore types that consist a high amount of Lead lower than 30um. Basically this ore consist of Fe minerals that rarely influence in flotation procedure. Th...
Last replied to by Obergruppenfuhrer
Technically -45 microns is smiles so in your gauge so discover those elements. Is it valuable elements for recoveries or for what do you determined those.
Technically -45 microns is smiles so in your gauge so discover those elements. Is it valuable elements for recoveries or for what do you determined those.
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2802
VIEWS
Started by Oberfuhrer
Typically from a lab flotation test, the retention time is scaled up by a factor of 3 to the plant scale. I.e. if lab flotation is 2 minutes, the plant flotation time is designed for 6 minutes. But when you have a pilot plant what should the scale up...
Typically from a lab flotation test, the retention time is scaled up by a factor of 3 to the plant scale. I.e. if lab flotation is 2 minutes, the plant flotation time is designed for 6 minutes. But when you have a pilot plant what should the scale up...
Last replied to by Amar
I agree with you on view of various studies to made on ore, gangue, mineral response, grinding, practical size, reagent, bubble characteristic, etc in detail .Pilot plant test would give more in puts ...
I agree with you on view of various studies to made on ore, gangue, mineral response, grinding, practical size, reagent, bubble characteristic, etc in detail .Pilot plant test would give more in puts ...
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1659
VIEWS
Started by Marshal Meru
Of one of our laboratory flotation test we found that the smaller impeller in 1000 gram tank, produce more mass pull (about 10%) compare to the larger impeller in 2000 gram tank. Is this normal for bench flotation test?
Of one of our laboratory flotation test we found that the smaller impeller in 1000 gram tank, produce more mass pull (about 10%) compare to the larger impeller in 2000 gram tank. Is this normal for bench flotation test?
Last replied to by David
See https://www.911metallurgist.com/blog/d12-agitator-speed-rpm-for-laboratory-flotation-test-vs-tankcell-sizevolume
See https://www.911metallurgist.com/blog/d12-agitator-speed-rpm-for-laboratory-flotation-test-vs-tankcell-sizevolume
2
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2319
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Started by
Suggestion regarding decreasing the effects of floating Alabandite or alabandine in zinc!
Suggestion regarding decreasing the effects of floating Alabandite or alabandine in zinc!
Last replied to by Sudhirkumar
Why Regrinding? What’s the mineral interlocking status of your ore of interest? Did you try various depressants for alabandite in flotation of sphalerite? The new reagent scheme consisted of Na2S, ...
Why Regrinding? What’s the mineral interlocking status of your ore of interest? Did you try various depressants for alabandite in flotation of sphalerite? The new reagent scheme consisted of Na2S, ...
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1716
VIEWS
Started by Victor Bergman
We are looking for (pyrite) sulfide separation experts and equipment. We need to separate the pyrites from a k-Rectorite clay. Both the pyrites and the clay will be ingested by humans and animals.We have a rare raspberry pyrite that Scientists workin...
We are looking for (pyrite) sulfide separation experts and equipment. We need to separate the pyrites from a k-Rectorite clay. Both the pyrites and the clay will be ingested by humans and animals.We have a rare raspberry pyrite that Scientists workin...
Last replied to by
By "raspberry" do you mean framboidal? Aggregates of blobby, micron-sized crystals?If so, a very difficult problem! Framboidal pyrite (FP) generally forms under anoxic/reducing conditions, and often a...
By "raspberry" do you mean framboidal? Aggregates of blobby, micron-sized crystals?If so, a very difficult problem! Framboidal pyrite (FP) generally forms under anoxic/reducing conditions, and often a...
9
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1665
VIEWS
Started by Gruppen
We just finished a flotation project and needed to improve recovery and reduce reagent usage if possible. With the sliding price of many metals, this has been a common request lately. The end results were fantastic, with recovery improving by as much...
We just finished a flotation project and needed to improve recovery and reduce reagent usage if possible. With the sliding price of many metals, this has been a common request lately. The end results were fantastic, with recovery improving by as much...
Last replied to by Obersturmbann
I like your reasoning. Is there any fully automated expert system that is currently in use that you are aware of? I'm interested in this area.
I like your reasoning. Is there any fully automated expert system that is currently in use that you are aware of? I'm interested in this area.
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3153
VIEWS
Started by Sachin Prakash
Is anyone aware of a paper or publication or literature addressing the issue with copper sulphide flotation at the presence of Limonite in the ore complex?
Is anyone aware of a paper or publication or literature addressing the issue with copper sulphide flotation at the presence of Limonite in the ore complex?
Last replied to by Sachin Prakash
Thank you all for your great replies. Sorry for my delayed reply; I was off the grid for a few days. We are looking into some mineralogical work and will pursue this until we find a clear answer.In t...
Thank you all for your great replies. Sorry for my delayed reply; I was off the grid for a few days. We are looking into some mineralogical work and will pursue this until we find a clear answer.In t...
7
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1647
VIEWS
Started by Marshal Meru
Why is no one using mechanical cells larger than 30m3 for igneous phosphate beneficiation?This is a question for the suppliers/designers of mechanical flotation cells why can one have a plant with 200m3 column flotation cells for igneous phosphate re...
Why is no one using mechanical cells larger than 30m3 for igneous phosphate beneficiation?This is a question for the suppliers/designers of mechanical flotation cells why can one have a plant with 200m3 column flotation cells for igneous phosphate re...
Last replied to by Victor Bergman
Here is some information on recovery and grade vs. particle size for the Phosphate plant in South Africa: (Particle size-micron; Rec-%; Grade-%P2O5)
Here is some information on recovery and grade vs. particle size for the Phosphate plant in South Africa: (Particle size-micron; Rec-%; Grade-%P2O5)
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1873
VIEWS
Started by OberstGruppen
Is it profitable to recover zinc from an abandoned flotation tailing dumps having 80 wt % CaCO3 and 9% zinc ores?What is the appropriate method for zinc recovery?
Is it profitable to recover zinc from an abandoned flotation tailing dumps having 80 wt % CaCO3 and 9% zinc ores?What is the appropriate method for zinc recovery?
Last replied to by Amar
Since your goal is to recover zinc minerals, the easiest first step is bulk flotation of the metals using xanthate collector (preferably isobutyl xanthate for zinc minerals). The particle size distrib...
Since your goal is to recover zinc minerals, the easiest first step is bulk flotation of the metals using xanthate collector (preferably isobutyl xanthate for zinc minerals). The particle size distrib...
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2887
VIEWS
Started by Standartenfurer
Currently we have an operation in Peru which is having some troubles with native copper flotation, I would like to know is anybody has some experience floating copper native together with Cpy, Py, Bn.
Currently we have an operation in Peru which is having some troubles with native copper flotation, I would like to know is anybody has some experience floating copper native together with Cpy, Py, Bn.
Last replied to by Victor Bergman
A bleed to a gravity circuit can have a relatively quick ROI. You might want to check out the use of Nelson concentrators, which can also significantly raise gold recovery prior to the flotation circu...
A bleed to a gravity circuit can have a relatively quick ROI. You might want to check out the use of Nelson concentrators, which can also significantly raise gold recovery prior to the flotation circu...
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3232
VIEWS
Started by Standartenfurer
Tell me how to get rid or depress and reduce MgO in the Cu / Ni ores flotation? Using reagents company Cytec, but MgO 22-24%
Tell me how to get rid or depress and reduce MgO in the Cu / Ni ores flotation? Using reagents company Cytec, but MgO 22-24%
Last replied to by Rahil Khan
Anything we want to know we should 1st try practically feasibility then go for discussion.
Anything we want to know we should 1st try practically feasibility then go for discussion.
I would like to say that not only this problem couldn't solve, it appears in another company running the same kind ore of mixed sulfide-oxide Pb/Zn. After all of my experiences I come to this conclusi...