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2237
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Started by Alex
We are currently setting up an Alluvial Gold Wash Plant - (Hopper bin - Vibrating Feeder - Trommel Scrubber - Sluice Box - Vibrating Screen (2mm) - Falcon Concentrator) We want to process the 75 tons per hour. The clay content is high. And the mat...
We are currently setting up an Alluvial Gold Wash Plant - (Hopper bin - Vibrating Feeder - Trommel Scrubber - Sluice Box - Vibrating Screen (2mm) - Falcon Concentrator) We want to process the 75 tons per hour. The clay content is high. And the mat...
3
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4066
VIEWS
Started by ramoah
I have recently come across a small deposit of COLTAN in Africa. I am looking to start a small scale processing plant to produce a concentrate and then separate the tantalite from the Niobium. Can anybody point me in the right direction. Where can ...
I have recently come across a small deposit of COLTAN in Africa. I am looking to start a small scale processing plant to produce a concentrate and then separate the tantalite from the Niobium. Can anybody point me in the right direction. Where can ...
4
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4004
VIEWS
Started by terrence
i am using spirals to recover chrome fines size (-1mm) to (+100microns) from ore. l have noticed a high grade and reasonable amount of values in the tailings and after size analysis a majority of these fines are in the range of (-75microns). How can ...
i am using spirals to recover chrome fines size (-1mm) to (+100microns) from ore. l have noticed a high grade and reasonable amount of values in the tailings and after size analysis a majority of these fines are in the range of (-75microns). How can ...
1
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1289
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1
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1534
VIEWS
Started by Blackbird
We're looking for a small feeder system to move ore onto our shaker table. Have seen a small (maybe 2' long) auger before at the Candelaria mine that was used to add lime to a slurry. Can't seem to find a source for them. Any ideas?
We're looking for a small feeder system to move ore onto our shaker table. Have seen a small (maybe 2' long) auger before at the Candelaria mine that was used to add lime to a slurry. Can't seem to find a source for them. Any ideas?
Last replied to by David
Capacity? Tonnage? Shaker table size?
Capacity? Tonnage? Shaker table size?
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1806
VIEWS
Started by Anupam
Can you explain recovery and recovery rates? Say I am jigging mineral, I get a 60% recovery rate. feed specific gravity is 3.8, final product gravity is 4.2. If I lower my recovery rate to 50%, what will happen? maintain final specific gravity, b...
Can you explain recovery and recovery rates? Say I am jigging mineral, I get a 60% recovery rate. feed specific gravity is 3.8, final product gravity is 4.2. If I lower my recovery rate to 50%, what will happen? maintain final specific gravity, b...
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1806
VIEWS
Started by Treve Mildren
What is the realistic feed capacity of a large shaking table ? I know the stated tonnages on the sales data sheets are rather exaggerated so does anyone have any real world numbers? What is the factor which decides that scale up? Logic would sugges...
What is the realistic feed capacity of a large shaking table ? I know the stated tonnages on the sales data sheets are rather exaggerated so does anyone have any real world numbers? What is the factor which decides that scale up? Logic would sugges...
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1495
VIEWS
Started by fotros
hello to everyone.I'm reasearching for the best tool for generation of manganese. which methods of gravity separation is better for the mine that have 12-18 grade manganese ore & it' Pyrolosite(MnO2).And after this method we reach to what grade?Than...
hello to everyone.I'm reasearching for the best tool for generation of manganese. which methods of gravity separation is better for the mine that have 12-18 grade manganese ore & it' Pyrolosite(MnO2).And after this method we reach to what grade?Than...
Last replied to by Treve Mildren
Hi Fotros. I am far from an expert in this field but I am conducting Enhanced Gravity testwork on another mineral at the moment. The Mets are using the Mn as an indication of the upgrade . The Mn is...
Hi Fotros. I am far from an expert in this field but I am conducting Enhanced Gravity testwork on another mineral at the moment. The Mets are using the Mn as an indication of the upgrade . The Mn is...
3
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1938
VIEWS
Started by vekian
We have 2 discharge pipes from the cyclone underflow. 1 is a smaller diameter pipe going to gravity/scalping screens which then classify the product. Oversize from these screens report to mill discharge hopper. Undersize reports to gravity concentrat...
We have 2 discharge pipes from the cyclone underflow. 1 is a smaller diameter pipe going to gravity/scalping screens which then classify the product. Oversize from these screens report to mill discharge hopper. Undersize reports to gravity concentrat...
Last replied to by KRISHNADAS
We had a setup in one of our gold plants, where complete cyclone underflow goes to a 1 mm screen, the screen underflow goes to the concentrator, while screen overflow is pumped back to the ball mill. ...
We had a setup in one of our gold plants, where complete cyclone underflow goes to a 1 mm screen, the screen underflow goes to the concentrator, while screen overflow is pumped back to the ball mill. ...
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1833
VIEWS
Started by Ausmet71
I am looking into a project that has substantial waste stockpiles expected to have moderate concentrations of Nickel, Copper, Ag and Cobalt. They are mostly interested in the Nickel/Cobalt and more than likely not looking to make final metal/cathode...
I am looking into a project that has substantial waste stockpiles expected to have moderate concentrations of Nickel, Copper, Ag and Cobalt. They are mostly interested in the Nickel/Cobalt and more than likely not looking to make final metal/cathode...
Last replied to by KRISHNADAS
HI We had treated copper sulphide ores in DMS and was successfull. Could you send a particle size distribution of the ore , with metal concentrations in each size. This would enable us to predict th...
HI We had treated copper sulphide ores in DMS and was successfull. Could you send a particle size distribution of the ore , with metal concentrations in each size. This would enable us to predict th...
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1401
VIEWS
Started by huntonia
The gangue is dolomite and ore is malachite, chrysocolla and heterogenite.
The gangue is dolomite and ore is malachite, chrysocolla and heterogenite.
Last replied to by KRISHNADAS
Hi I am working in a HMS plant recovering malachite. Chrysocolla is difficult to recover, but not impossible. Heterogenite cannot be recovered as it is fragile. We have operated a 350 tph plant and...
Hi I am working in a HMS plant recovering malachite. Chrysocolla is difficult to recover, but not impossible. Heterogenite cannot be recovered as it is fragile. We have operated a 350 tph plant and...
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2762
VIEWS
Started by GhanaBob
Hello Colleagues, I want to thank each of you who added great clarity to my previous question of mass vs density measurements. In a similar vein, how can ppm be a meaningful metric compared to g/m3? What does ppm in placer sampling really tell us th...
Hello Colleagues, I want to thank each of you who added great clarity to my previous question of mass vs density measurements. In a similar vein, how can ppm be a meaningful metric compared to g/m3? What does ppm in placer sampling really tell us th...
Last commented on by max skinner
Except in the USA, but that is changing.
Except in the USA, but that is changing.
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2438
VIEWS
Started by Rob.Earth.20
Hello, I want to ask about the design of ore washing plant. Did anyone have a reference about manganese or ore washing plant. Thank you.
Hello, I want to ask about the design of ore washing plant. Did anyone have a reference about manganese or ore washing plant. Thank you.
Last commented on by Rob.Earth.20
Halo Bang, saya di NTT bang. We have manganese oxide. The minerals formed in ofiolite complex. The other mineral are limonite, some scaly clay and flint. Yes we did some gravity separation, but the ta...
Halo Bang, saya di NTT bang. We have manganese oxide. The minerals formed in ofiolite complex. The other mineral are limonite, some scaly clay and flint. Yes we did some gravity separation, but the ta...
1
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1815
VIEWS
Started by Tererai
What do i have to consider when i want to optimize my scrubber? I'm have issues on tyres bursting and constantly changing gearboxes. I know it has to do with the weight of the loaded scrubber but what else should i take into consideration in tryin...
What do i have to consider when i want to optimize my scrubber? I'm have issues on tyres bursting and constantly changing gearboxes. I know it has to do with the weight of the loaded scrubber but what else should i take into consideration in tryin...
7
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1631
VIEWS
Started by Sam
This is an old school method I am trying to learn more about. Froth floatation on a shaker table. I don't mean done separately. Does anyone know anything about it? It was mentioned in a set of operating instructions for an RP-4 Shaker Table but not e...
This is an old school method I am trying to learn more about. Froth floatation on a shaker table. I don't mean done separately. Does anyone know anything about it? It was mentioned in a set of operating instructions for an RP-4 Shaker Table but not e...
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4071
VIEWS
Started by NAVEEN VARMA B
Myself mineral processing engineer and am working on flow sheet development.... Am getting problem with maintaining circulating load in spiral concentrator circuit (rougher, scavenger & cleaner) followed by hydro cyclone? As we are giving hydro cyclo...
Myself mineral processing engineer and am working on flow sheet development.... Am getting problem with maintaining circulating load in spiral concentrator circuit (rougher, scavenger & cleaner) followed by hydro cyclone? As we are giving hydro cyclo...
2
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2254
VIEWS
Started by Michael Z. Papadopoulos
What is the minimum size of Chrome ore which is currently concentrated with Fine DMS?
What is the minimum size of Chrome ore which is currently concentrated with Fine DMS?
Last replied to by Michael Z. Papadopoulos
Size as in particle size please.
Size as in particle size please.
3
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1592
VIEWS
Started by biteyaboy
I have knelson concentrate that capture free gold and same concentrate is upgrade into shacking table sometimes ready for Acacia process (Leaching and Electrowinning). Recently i got little bit high copper value of copper. Resuts are 1000 ppm of Au a...
I have knelson concentrate that capture free gold and same concentrate is upgrade into shacking table sometimes ready for Acacia process (Leaching and Electrowinning). Recently i got little bit high copper value of copper. Resuts are 1000 ppm of Au a...
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2260
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1488
VIEWS
Started by hadi
Dear All, Greetings from Iran and glad to be here among professionals. How to determine metal liberation size prior to jigging of Lead slag with 10% Pb content. Kindly advise if you have any idea.
Dear All, Greetings from Iran and glad to be here among professionals. How to determine metal liberation size prior to jigging of Lead slag with 10% Pb content. Kindly advise if you have any idea.
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2388
VIEWS
Started by Tariq
I ran 6.11% copper oxide on a shaking table optimised to process chromite ore, and got 10.60% in heading, and 4.28 in middling. Copper was milled at 100 plus mesh. There was no control and hence no optimisation. How much say 1% copper ore can be upg...
I ran 6.11% copper oxide on a shaking table optimised to process chromite ore, and got 10.60% in heading, and 4.28 in middling. Copper was milled at 100 plus mesh. There was no control and hence no optimisation. How much say 1% copper ore can be upg...
Last commented on by Treve Mildren
Yes 50g is sufficient but send a little more (100g) in case I need to retest.
Yes 50g is sufficient but send a little more (100g) in case I need to retest.
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2815
VIEWS
Started by Sachin Prakash
Why were copper plates used historically for mercury amalgamation = rather than other metals? it's always copper. Thank you
Why were copper plates used historically for mercury amalgamation = rather than other metals? it's always copper. Thank you
Last replied to by Hauptsturm
Mercury is attracted to copper. The mercury is dispensed down a long copper table, which formed a thin coating of mercury on the whole table. This creates a mercury-wetted copper plate. The gold ore w...
Mercury is attracted to copper. The mercury is dispensed down a long copper table, which formed a thin coating of mercury on the whole table. This creates a mercury-wetted copper plate. The gold ore w...
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5286
VIEWS
Started by Alex
We are looking for an efficient Nugget Trap design. Alluvial Gold Wash Plant - 75 tons per hour. Anyone has a proofed efficient design? We found some on internet, but not sure if they are really effective.
We are looking for an efficient Nugget Trap design. Alluvial Gold Wash Plant - 75 tons per hour. Anyone has a proofed efficient design? We found some on internet, but not sure if they are really effective.
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4365
VIEWS
Started by explorer64
We sent a substantial amount of quartz gold ore to a mill for processing. After a couple hundred tests on the material an average grade was calculated. After milling for several days the mill says there is way less gold in the ore than what had bee...
We sent a substantial amount of quartz gold ore to a mill for processing. After a couple hundred tests on the material an average grade was calculated. After milling for several days the mill says there is way less gold in the ore than what had bee...
Last replied to by David
Funny how Treve here posted photos of a Mozley Multi Gravity Separator to recover gold ... do you see the ball mill parallel?
Funny how Treve here posted photos of a Mozley Multi Gravity Separator to recover gold ... do you see the ball mill parallel?
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2149
VIEWS
Started by Mr. Nanda kishore
if jigging can process galena ore, which information is necessary e.g mineralogy, feed size, feed, jigging machine type etc. ?
if jigging can process galena ore, which information is necessary e.g mineralogy, feed size, feed, jigging machine type etc. ?
Last replied to by David
Hello Mr. Nanda, unless this is a research project or you are under some serious environmental restrictions, you would not jig galena. Mr. Skinner is correct in saying flotation is the best galena re...
Hello Mr. Nanda, unless this is a research project or you are under some serious environmental restrictions, you would not jig galena. Mr. Skinner is correct in saying flotation is the best galena re...
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2596
VIEWS
Started by Latricia Patton
We always come across some customers who want to concentrate the alluvial gold . And their alluvial gold is with some magnetic mineral,so some magnetic would stay with after gold centrifugal or jig separator . below is the flow offer by some suppl...
We always come across some customers who want to concentrate the alluvial gold . And their alluvial gold is with some magnetic mineral,so some magnetic would stay with after gold centrifugal or jig separator . below is the flow offer by some suppl...
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4672
VIEWS
Started by spaceexplorer
We are considering acquiring an iCON-i350 Centrifugal Concentrator ( http://www.iconcentrator.com ); a Falcon SB350 equivalent. However, we got an attractive offer of two units of “Oro Low-G 16” Horizontal Centrifuge Primary Concentrators” (use...
We are considering acquiring an iCON-i350 Centrifugal Concentrator ( http://www.iconcentrator.com ); a Falcon SB350 equivalent. However, we got an attractive offer of two units of “Oro Low-G 16” Horizontal Centrifuge Primary Concentrators” (use...
Last replied to by David
Yes, if you have no gold finer than 200 mesh (74um) you might be OK with that low-G machine. Otherwise.... you need high-G for better recovery of fine gold. Can you perform that type for test? Belo...
Yes, if you have no gold finer than 200 mesh (74um) you might be OK with that low-G machine. Otherwise.... you need high-G for better recovery of fine gold. Can you perform that type for test? Belo...
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3472
VIEWS
Started by Olga
Hello colleagues! Does anybody has an experience with tube densifiers in a dense medium circuit? The picture of densifier is attached. What are the advantages? Is it possible to set up usual thickening hydrocyclones? What are the differences? Wh...
Hello colleagues! Does anybody has an experience with tube densifiers in a dense medium circuit? The picture of densifier is attached. What are the advantages? Is it possible to set up usual thickening hydrocyclones? What are the differences? Wh...
5
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2606
VIEWS
Started by Wattle01
Hi I'm currently working Placer gold a Quarts Conglomerate, I'm washing in a Trommel, 100 x 15 liter buckets ( soaked over night) in a day 5 days a month.... I have a limited amount of water. I'm wondering if I made a bigger Trommel to wash the 500...
Hi I'm currently working Placer gold a Quarts Conglomerate, I'm washing in a Trommel, 100 x 15 liter buckets ( soaked over night) in a day 5 days a month.... I have a limited amount of water. I'm wondering if I made a bigger Trommel to wash the 500...
2
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2140
VIEWS
Started by anjanisail
Dear All While preparing Flow Sheet for designing of a flow sheet for beneficiation of Hematite Iron Ore, I came across a Problem. I have considered Jig, Spiral Concentrator and WHIMS in my envisaged flow sheet. Based on the available test test resu...
Dear All While preparing Flow Sheet for designing of a flow sheet for beneficiation of Hematite Iron Ore, I came across a Problem. I have considered Jig, Spiral Concentrator and WHIMS in my envisaged flow sheet. Based on the available test test resu...
Last replied to by
AS YOU MUST KNOW, One of the biggest mistakes in designing a process flowsheet is designing for an "average" ore that will never actually be seen. If Pilot Plant work is done, a range of ores should b...
AS YOU MUST KNOW, One of the biggest mistakes in designing a process flowsheet is designing for an "average" ore that will never actually be seen. If Pilot Plant work is done, a range of ores should b...
19
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2092
VIEWS
Started by Tarun Karakoti
We run a Gekko ILR to leach gravity gold. The problem we have is to estimate the Au recovered using Solution assays & tons from volume measurements. The variation is always approx. -30%. Where are we missing?
We run a Gekko ILR to leach gravity gold. The problem we have is to estimate the Au recovered using Solution assays & tons from volume measurements. The variation is always approx. -30%. Where are we missing?
Last replied to by Tarun Karakoti
What are the best automatic sample cutters for the solution streams?I think the problem with solution accountability has been identified. It was due to interference with Fe ions with the use of AAS di...
What are the best automatic sample cutters for the solution streams?I think the problem with solution accountability has been identified. It was due to interference with Fe ions with the use of AAS di...
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2887
VIEWS
Started by Jean Rasczak
Could Gravity + Intensive Leach process the Gold in more cost effective manner? Some study in stopping the illegal miners using mercury claimed this opportunity too. Some junior miners samples of Indonesia, showing > 100 ppm Au in the GRG concent...
Could Gravity + Intensive Leach process the Gold in more cost effective manner? Some study in stopping the illegal miners using mercury claimed this opportunity too. Some junior miners samples of Indonesia, showing > 100 ppm Au in the GRG concent...
Last replied to by Hauptsturm
It is good to see you describe the research he has conducted concerning the use of glycine for leaching copper (1 paper) and for leaching gold and silver (2 papers). We look forward to their demonstra...
It is good to see you describe the research he has conducted concerning the use of glycine for leaching copper (1 paper) and for leaching gold and silver (2 papers). We look forward to their demonstra...
2
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2338
VIEWS
Started by Marshal Meru
Within our concessions have abundant tailings (2% Hg and 10 oz Ag/TM), waste from the extraction of mercury from cinnabar, they have potential silver content. What would be the ideal method to benefit them?
Within our concessions have abundant tailings (2% Hg and 10 oz Ag/TM), waste from the extraction of mercury from cinnabar, they have potential silver content. What would be the ideal method to benefit them?
Last replied to by Marshal Meru
The raw materials are sandstones with contents of cinnabar, which are the result of the processes of recovery of Hg retorts used by the Spaniards for the 1700. Silver is found as native. So the idea i...
The raw materials are sandstones with contents of cinnabar, which are the result of the processes of recovery of Hg retorts used by the Spaniards for the 1700. Silver is found as native. So the idea i...
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REPLIES
1923
VIEWS
Started by Helena Russell
How low can your solid tails go?Low grade ores ranging 0.6 - 1.0 g/t Au (silver ignored), Low Cu (25-50 g/t0Gravity- CIL circuit gold processing plant.
How low can your solid tails go?Low grade ores ranging 0.6 - 1.0 g/t Au (silver ignored), Low Cu (25-50 g/t0Gravity- CIL circuit gold processing plant.
Hello Alex - Did you get your clay problems solved? Hello Deano - Interested in your observations about a prewash for heavy clays? Do you provide tech services? Rob rslavik@tanzaniangoldfields.com...