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8364
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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...
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1764
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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".
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4355
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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://www.911metallurgist.com/equipment/alluvial/gold-wash-plants/
Gold Wash Plants of all sizes & budgets https://www.911metallurgist.com/equipment/alluvial/gold-wash-plants/
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2483
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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...
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1235
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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 ...
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2873
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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://www.911metallurgist.com/blog/barite-beneficiation-process-plant-flowsheet
See https://www.911metallurgist.com/blog/barite-beneficiation-process-plant-flowsheet
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2153
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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...
Last replied to by
Rock of 3.0 g/cc can be separated from rock of 2.0 g/cc. Separating 3 cm2 rock from 4 cm2 rock would be a classification process using screens not spirals. https://www.youtube.com/watch?v=O64USKI_UDs
Rock of 3.0 g/cc can be separated from rock of 2.0 g/cc. Separating 3 cm2 rock from 4 cm2 rock would be a classification process using screens not spirals. https://www.youtube.com/watch?v=O64USKI_UDs
3
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1165
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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 ...
Last replied to by
The old Yuba Manufacturing company which operated from the late 1890's to about 1960 built many floating dredges that also include a gravity circuit on them. I used to have a picture showing four or f...
The old Yuba Manufacturing company which operated from the late 1890's to about 1960 built many floating dredges that also include a gravity circuit on them. I used to have a picture showing four or f...
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1725
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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.
Last replied to by
Cut-offs around 150-200 pp is an industry standard to look out for, below this, you may be wasting your time. The above comments are all true. On alluvial/eluvial - overburden depth is critical. On ha...
Cut-offs around 150-200 pp is an industry standard to look out for, below this, you may be wasting your time. The above comments are all true. On alluvial/eluvial - overburden depth is critical. On ha...
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1158
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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...
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1312
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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?
Last replied to by
Glad to learn the craft of dredging has yet to be classified as an extinct procedure of interest to archaeologists.
Glad to learn the craft of dredging has yet to be classified as an extinct procedure of interest to archaeologists.
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1517
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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...
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2102
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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 -...
Last replied to by
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 ...
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 ...
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1984
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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...
Last replied to by
Spirals will cut the water split to the reject such that extra water is often needed to carry the heavy concentrate to the collection point.Jig water split is a matter of hutch water addition. As the ...
Spirals will cut the water split to the reject such that extra water is often needed to carry the heavy concentrate to the collection point.Jig water split is a matter of hutch water addition. As the ...
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1112
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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...
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1195
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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...
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2861
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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
Hi All, kindly can anybody possibly help with drawings for a 10-ft and 16-ft Rotary Pan ? Thanks !