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33
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10008
VIEWS
Started by Jean Rasczak
I need a Rotary Pan (De Beers Pan) for diamond recovery. Used or new will do. I was told before that the Rotary pan does not work in Brazil, apparently they prefer Jigs in Brazil. Can anybody comment on this as to why, maybe? I am very familiar with...
I need a Rotary Pan (De Beers Pan) for diamond recovery. Used or new will do. I was told before that the Rotary pan does not work in Brazil, apparently they prefer Jigs in Brazil. Can anybody comment on this as to why, maybe? I am very familiar with...
8
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4344
VIEWS
Started by Bob Mathias
When it comes to very fine gold recovery in alluvial operations where throughput volume and continuity are very important, what are the top priorities to consider?How important are say Corey factors, make up of host gravel/sands, gold finesse, clear ...
When it comes to very fine gold recovery in alluvial operations where throughput volume and continuity are very important, what are the top priorities to consider?How important are say Corey factors, make up of host gravel/sands, gold finesse, clear ...
11
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2397
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Started by Zander Barcalow
I'm looking for methods of industrial processing of titanium ores which follows the initial "gravity separations".
I'm looking for methods of industrial processing of titanium ores which follows the initial "gravity separations".
21
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5377
VIEWS
Started by
I am mining in Ghana and wonder which type of gold washing plant are better: rotary scrubber/ trommel or drum scrubber/ trommel concentrator.
I am mining in Ghana and wonder which type of gold washing plant are better: rotary scrubber/ trommel or drum scrubber/ trommel concentrator.
Last replied to by David
Gold Wash Plants of all sizes & budgets https://redesign.911metallurgist.com/equipment/alluvial/gold-wash-plants/
Gold Wash Plants of all sizes & budgets https://redesign.911metallurgist.com/equipment/alluvial/gold-wash-plants/
10
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3086
VIEWS
Started by JohnnyD
Do we finally have a viable efficiency low-cost "Cheap" Gold Recovery Process that most can afford? Could Gravity + Intensive Leach help small mining Companies or individual process Gold in more cost effective manner? Some study in stopping the ille...
Do we finally have a viable efficiency low-cost "Cheap" Gold Recovery Process that most can afford? Could Gravity + Intensive Leach help small mining Companies or individual process Gold in more cost effective manner? Some study in stopping the ille...
Last replied to by Darkchild101
Hi I would be interested to know if there are any new developments in this area/research. We plan on recovering gold from tailings in Zimbabwe and are faced with shortage of capital. Is there any way...
Hi I would be interested to know if there are any new developments in this area/research. We plan on recovering gold from tailings in Zimbabwe and are faced with shortage of capital. Is there any way...
14
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1777
VIEWS
Started by
What method would be best to use for the washing of coal tailings having ash of ranges from 45-54um
What method would be best to use for the washing of coal tailings having ash of ranges from 45-54um
Last replied to by Treve Mildren
The old Mozley MGS certainly wasn't worth consideration due to its inability to pull sufficient material to concentrate. Development work by Gravity Mining ltd in conjunction with the Camborne School ...
The old Mozley MGS certainly wasn't worth consideration due to its inability to pull sufficient material to concentrate. Development work by Gravity Mining ltd in conjunction with the Camborne School ...
11
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3552
VIEWS
Started by
I'm working on beneficiation of barium sulfate from low grade barite ore (64.2% BaSO4) in presence of 28.01 SiO2 and 4.8 PbO. 4.8% PbO with 28% SiO2. We want to achieve min 4.2 S.G with less than 250 ppm Lead. (OCMA Standard) Does anyone have any ...
I'm working on beneficiation of barium sulfate from low grade barite ore (64.2% BaSO4) in presence of 28.01 SiO2 and 4.8 PbO. 4.8% PbO with 28% SiO2. We want to achieve min 4.2 S.G with less than 250 ppm Lead. (OCMA Standard) Does anyone have any ...
Last replied to by David
See https://redesign.911metallurgist.com/blog/barite-beneficiation-process-plant-flowsheet
See https://redesign.911metallurgist.com/blog/barite-beneficiation-process-plant-flowsheet
3
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1457
VIEWS
Started by Amar
Just wondering if there is a better way, environmentally, to reprocess mercury-rich gold tailings other than using a retort! The tailings belong to an old Whole Ore Amalgamation process at a saprolite deposit.
Just wondering if there is a better way, environmentally, to reprocess mercury-rich gold tailings other than using a retort! The tailings belong to an old Whole Ore Amalgamation process at a saprolite deposit.
Last replied to by Amar
Gravity Concentrators can only recover about 60-70% of the mercury at best.
Gravity Concentrators can only recover about 60-70% of the mercury at best.
4
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1757
VIEWS
Started by
Anyone experience any significant correlation between feed rate and grade/recovery in GRG concentration test work?If we run 50kg batch, 20 kg batch, 2 kg batch with similar feed rate and other parameters, anyone experience any significant difference ...
Anyone experience any significant correlation between feed rate and grade/recovery in GRG concentration test work?If we run 50kg batch, 20 kg batch, 2 kg batch with similar feed rate and other parameters, anyone experience any significant difference ...
1
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1604
VIEWS
Started by OberstGruppen
There is any specific reaction, to describe the process of amalgamation of gold?
There is any specific reaction, to describe the process of amalgamation of gold?
5
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1964
VIEWS
Started by
We have a heavy mineral sand project and we would want to use standards samples. Most of our analyses are done by heavy liquid separation to get the Total Heavy Minerals (THM). For now, we use a homogenized bulk sample for our standards but it’s n...
We have a heavy mineral sand project and we would want to use standards samples. Most of our analyses are done by heavy liquid separation to get the Total Heavy Minerals (THM). For now, we use a homogenized bulk sample for our standards but it’s n...
3
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1720
VIEWS
Started by
"Diamond Soaks" for Separating Precious Metals from Precious Stones: Are There Any New and Efficient Methods Better Thank Aqua Regia Then Sieve Shakers? This is a process for recycling by separating precious stones from gold, silver, the platinum gro...
"Diamond Soaks" for Separating Precious Metals from Precious Stones: Are There Any New and Efficient Methods Better Thank Aqua Regia Then Sieve Shakers? This is a process for recycling by separating precious stones from gold, silver, the platinum gro...
6
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1485
VIEWS
Started by Standartenfurer
We have a placer gold mine in the remote area, the grade is 0.3 ppm and the reserve is 30 million tons. We do not have water and maximum recovery with Knelson is around 40%, can anyone help for processing?
We have a placer gold mine in the remote area, the grade is 0.3 ppm and the reserve is 30 million tons. We do not have water and maximum recovery with Knelson is around 40%, can anyone help for processing?
Last replied to by Standartenfurer
We are working on characterization tests and will inform you the result shortly.
We are working on characterization tests and will inform you the result shortly.
15
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2811
VIEWS
Started by
We are giving feed to Rougher spiral with 58.8% Fe, Concentrate yields 60% along with 63%Fe, Again this material is sending for Second stage treatment (Cleaner stage) here its producing 64.2%Fe. But, total tailing from Spiral Circuit contains 55% yie...
We are giving feed to Rougher spiral with 58.8% Fe, Concentrate yields 60% along with 63%Fe, Again this material is sending for Second stage treatment (Cleaner stage) here its producing 64.2%Fe. But, total tailing from Spiral Circuit contains 55% yie...
Last replied to by Obergruppenfuhrer
I appreciate your response and that you are planning to try out the tests suggested. If you do require a plant audit then our company CDE Asia Ltd could be of service. We have an agreement with GHD of...
I appreciate your response and that you are planning to try out the tests suggested. If you do require a plant audit then our company CDE Asia Ltd could be of service. We have an agreement with GHD of...
6
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1959
VIEWS
Started by
Is it possible to gravity concentrate a gold dump during the rainy season using sluices taking advantage of the natural drainage system?
Is it possible to gravity concentrate a gold dump during the rainy season using sluices taking advantage of the natural drainage system?
3
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2764
VIEWS
Started by Bob Mathias
The video shows one that was shown last year at electra mining. It gives some idea on how it works I just wonder how this can be applied to different mineral ores? What is the discriminatory edge with this method? Meaning how different must the dens...
The video shows one that was shown last year at electra mining. It gives some idea on how it works I just wonder how this can be applied to different mineral ores? What is the discriminatory edge with this method? Meaning how different must the dens...
3
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1785
VIEWS
Started by
Might is be for base metal recovery by flotation or gold by leaching and flotation, a Mobile and Modular Process Plants only use to be a thing of the pass... no more. While gold and other placer operations (diamonds) are the big users in numbers of ...
Might is be for base metal recovery by flotation or gold by leaching and flotation, a Mobile and Modular Process Plants only use to be a thing of the pass... no more. While gold and other placer operations (diamonds) are the big users in numbers of ...
3
REPLIES
2366
VIEWS
Started by Zander Barcalow
Can any body tell me cut- off grade of Tantalum in alluvial deposit for economical mining &processing. Tantalum present in alluvial deposit in the form of Coltan.
Can any body tell me cut- off grade of Tantalum in alluvial deposit for economical mining &processing. Tantalum present in alluvial deposit in the form of Coltan.
4
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1657
VIEWS
Started by Marshal Meru
The performance of Churn Drills on wet alluvial merits some discussion as I agree that Churn Drills are EXCELLENT on DRY-ISH ground (terraces, small creeks, paleoplacers etc) but USELESS on WET ground such as floodplains or below water tables. Possi...
The performance of Churn Drills on wet alluvial merits some discussion as I agree that Churn Drills are EXCELLENT on DRY-ISH ground (terraces, small creeks, paleoplacers etc) but USELESS on WET ground such as floodplains or below water tables. Possi...
Last replied to by Zander Barcalow
Whenever people suggest applying factors to assay numbers they are implicitly admitting they have sampling problems. When you use holes drilled by different machines, each producing its distinctive di...
Whenever people suggest applying factors to assay numbers they are implicitly admitting they have sampling problems. When you use holes drilled by different machines, each producing its distinctive di...
20
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1839
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Started by
Could a Dredging Bucket be used for alluvial mining? I suppose it is an accessory that replaces a bucket of an excavator. Cutter head and slurry pump moved by the hydraulic. Has anyone known or worked it?
Could a Dredging Bucket be used for alluvial mining? I suppose it is an accessory that replaces a bucket of an excavator. Cutter head and slurry pump moved by the hydraulic. Has anyone known or worked it?
16
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2060
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Started by
Knowing that gold particles do not exceed 0.25mm and with the 1/32'' portion ranging between 15-20% and absence of clays. Would it not pay off to classify further before feeding the jigs or centrifuges, say down to 1/32''? If so are multi-deck...
Knowing that gold particles do not exceed 0.25mm and with the 1/32'' portion ranging between 15-20% and absence of clays. Would it not pay off to classify further before feeding the jigs or centrifuges, say down to 1/32''? If so are multi-deck...
Last replied to by Jean Rasczak
Agree with above comments. Classification is a method of concentration and it can be overkill at some point. Bench scale or pilot scale testing is required. The full range particle size analysis is re...
Agree with above comments. Classification is a method of concentration and it can be overkill at some point. Bench scale or pilot scale testing is required. The full range particle size analysis is re...
16
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2673
VIEWS
Started by
We operate an InLine Leach Reactor (ILR) by Gekko used to leach gravity gold. The problem we have is to estimate the Au recovered using Solution assays & tons from volume measurements. The variance in gold metal we are missing is always around -...
We operate an InLine Leach Reactor (ILR) by Gekko used to leach gravity gold. The problem we have is to estimate the Au recovered using Solution assays & tons from volume measurements. The variance in gold metal we are missing is always around -...
4
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3227
VIEWS
Started by JohnnyD
Using gravity concentrators like spirals or jigs, how is the water distribution estimated or calculated between Concentrate and Reject/tailings? During preparation of the Flow sheet from lab results we came across water balance of the gravity concen...
Using gravity concentrators like spirals or jigs, how is the water distribution estimated or calculated between Concentrate and Reject/tailings? During preparation of the Flow sheet from lab results we came across water balance of the gravity concen...
3
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1683
VIEWS
Started by Victor Bergman
I know of a placer gold mine with an average grade is 0.3 ppm (0.3 gram/tonne) and the reserve is 30 million tons. The mine located in remote area and we do not have sufficient water although we send a sample for Knelson company but the max recove...
I know of a placer gold mine with an average grade is 0.3 ppm (0.3 gram/tonne) and the reserve is 30 million tons. The mine located in remote area and we do not have sufficient water although we send a sample for Knelson company but the max recove...
Last replied to by JohnnyD
First to screen and reduce the weight for the value mineral, then is available a air classification for the -2 mm - 1 mm.(I do not know for 700tons/hr capacity, may be) Then Knelson of course many uni...
First to screen and reduce the weight for the value mineral, then is available a air classification for the -2 mm - 1 mm.(I do not know for 700tons/hr capacity, may be) Then Knelson of course many uni...
5
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1804
VIEWS
Started by JohnnyD
When is a Heavy Media separation system applied for processing of Lead & Zinc ore? Generally processing of which type of lead and zinc ore is practical using heavy media? Which design criteria should be considered?
When is a Heavy Media separation system applied for processing of Lead & Zinc ore? Generally processing of which type of lead and zinc ore is practical using heavy media? Which design criteria should be considered?
Last replied to by David
Nyrstar in Tennessee has 2 processing plants using Heavy Media Separation on a 2.6% Zn sphalerite hosted in dolomite. 60% of the mass reports to tails of 0.2% Zn while the flotation feed created by t...
Nyrstar in Tennessee has 2 processing plants using Heavy Media Separation on a 2.6% Zn sphalerite hosted in dolomite. 60% of the mass reports to tails of 0.2% Zn while the flotation feed created by t...
2
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4266
VIEWS
Started by Victor Bergman
How to calculate the process water and Hutch water for Iron ore processing on Jigs? How water is redistributed in hutch and process water. If there is any thumb rule to calculate hutch water for 4m and 2.5m jig area. How much water is going out throu...
How to calculate the process water and Hutch water for Iron ore processing on Jigs? How water is redistributed in hutch and process water. If there is any thumb rule to calculate hutch water for 4m and 2.5m jig area. How much water is going out throu...
Last replied to by David
Rob Riggir has kindly sent me some info already. Apologies my email address is wayne@coindemire.co.za