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9
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4555
VIEWS
Started by BUBKWEY
Hi fellow metallurgists, Before trying this new prosuct "Eco-Goldex O series " to replace Sodium Cyanide in my VAT leaching operations, I would like to get some firsthand proof from anyone in here about the following: -Is "Eco-Goldex O se...
Hi fellow metallurgists, Before trying this new prosuct "Eco-Goldex O series " to replace Sodium Cyanide in my VAT leaching operations, I would like to get some firsthand proof from anyone in here about the following: -Is "Eco-Goldex O se...
Last replied to by Ivan Brezani
To start with: I have a scientific background in Mineral Processing I am working for an active gold mine/processing plant in the EU I have conducted a number of tests with Eco-Goldex O series as we...
To start with: I have a scientific background in Mineral Processing I am working for an active gold mine/processing plant in the EU I have conducted a number of tests with Eco-Goldex O series as we...
3
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1516
VIEWS
Started by shastry
Hello, Our leaching plant is manually operated and we want to go for complete Automation ours is 2000 tonnes per day capacity plant. Hence please give me the inputs where to start from and what all the equipments required.
Hello, Our leaching plant is manually operated and we want to go for complete Automation ours is 2000 tonnes per day capacity plant. Hence please give me the inputs where to start from and what all the equipments required.
3
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2622
VIEWS
Started by martie
Hello has anyone done any work on the stripping of gold from carbon fines with virgin carbon (or regenerated carbon) in a cyanide solution? Or any literature?
Hello has anyone done any work on the stripping of gold from carbon fines with virgin carbon (or regenerated carbon) in a cyanide solution? Or any literature?
2
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1350
VIEWS
Started by shastry
Hi, Please suggest how best we can separate fine carbon and trash from slurry, as we are having old methodology like wedge wire screen.
Hi, Please suggest how best we can separate fine carbon and trash from slurry, as we are having old methodology like wedge wire screen.
1
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1599
VIEWS
Started by Millza79
For treating refractory gold ore, what is the minimum sulphur/sulphide grade required for a BIOX circuit? Thanks
For treating refractory gold ore, what is the minimum sulphur/sulphide grade required for a BIOX circuit? Thanks
3
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1367
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1
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1215
VIEWS
Started by m_aazami
Greeting recently we started the design of a iron ore pelletizing plant using rotary kiln method (alis chalmerz technology). the S content of iron concentrate is about 0.2% and we want to reach to less than 0.008% in the pellet product. but the ...
Greeting recently we started the design of a iron ore pelletizing plant using rotary kiln method (alis chalmerz technology). the S content of iron concentrate is about 0.2% and we want to reach to less than 0.008% in the pellet product. but the ...
Last replied to by Mike
Without seeing the process flow diagram the first thought would be the basic temperature differences in the process. The Allis Chalmers process using a rotary kiln is used to sinter the pellets, par...
Without seeing the process flow diagram the first thought would be the basic temperature differences in the process. The Allis Chalmers process using a rotary kiln is used to sinter the pellets, par...
1
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1564
VIEWS
Started by Raghuveer
Hi , This is Raghuveer from DRC congo. I work for Copper processing plant, we are installing Co/Cu processing plant. I have a query on the rubber lining of stainless steel tank. Need tp select the rubber lining material on stainless steel tank of HBF...
Hi , This is Raghuveer from DRC congo. I work for Copper processing plant, we are installing Co/Cu processing plant. I have a query on the rubber lining of stainless steel tank. Need tp select the rubber lining material on stainless steel tank of HBF...
1
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1211
VIEWS
Started by Millza79
Hi all, has anyone got typical costs for North American Cu heap leach operations (in US$/t) with a breakdown of: SX EW Crushing Leaching Materials handling Labour Power Also Capex and working capital costs would be good. Hap...
Hi all, has anyone got typical costs for North American Cu heap leach operations (in US$/t) with a breakdown of: SX EW Crushing Leaching Materials handling Labour Power Also Capex and working capital costs would be good. Hap...
1
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1580
VIEWS
Started by Jose Doneiber
Greetings to all. For a little over a year, I am working with cyanidation by agitation method. At the moment I am working on 2 tanks with the following measures: 1. 90m diameter and 2m high. I filter rich solution with sand filter, I precipitate ric...
Greetings to all. For a little over a year, I am working with cyanidation by agitation method. At the moment I am working on 2 tanks with the following measures: 1. 90m diameter and 2m high. I filter rich solution with sand filter, I precipitate ric...
1
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1156
VIEWS
Started by Millza79
Does anyone have an opinion on what is better for sampling slurries - poppet or cross-cut samplers? Particularly, on gold cyanide leach feed samples.
Does anyone have an opinion on what is better for sampling slurries - poppet or cross-cut samplers? Particularly, on gold cyanide leach feed samples.
Last replied to by Mike
An old adage for sampling was that in decreasing accuracy you have: All the stream all of the time All of the stream part of the time Part of the stream all of the time Part of the stream part o...
An old adage for sampling was that in decreasing accuracy you have: All the stream all of the time All of the stream part of the time Part of the stream all of the time Part of the stream part o...
2
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1387
VIEWS
Started by oro
I want to test a leach tank for concentrates using just a blower for agitation. Keeping it simple I’ll use two 55 gal drums welded together (vertically), the tank will have a cone shaped bottom and be supported on legs. A 3/4” pvc tube is p...
I want to test a leach tank for concentrates using just a blower for agitation. Keeping it simple I’ll use two 55 gal drums welded together (vertically), the tank will have a cone shaped bottom and be supported on legs. A 3/4” pvc tube is p...
2
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1618
VIEWS
Started by redcastle
I have a small ball mill ( 1 to 2 tph ) and plenty of oxide ore and I was looking at the feasibility of building a test small scale leaching circuit that could be run in a batch style to keep it as simple as possible. My current idea is once the ore...
I have a small ball mill ( 1 to 2 tph ) and plenty of oxide ore and I was looking at the feasibility of building a test small scale leaching circuit that could be run in a batch style to keep it as simple as possible. My current idea is once the ore...
1
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1280
VIEWS
Started by alimrtdha
how to know the ideal number of stage required to remove gold in CIP process
how to know the ideal number of stage required to remove gold in CIP process
5
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1408
VIEWS
Started by Henley Munn
Hello In a gold heap leach is there a relationship between the ILS Au ppm, the dissolution rate of gold from ore, the ore grade and amount of free cyanide. If there is still free cyanide in solution will gold in ore still be soluble or is the disso...
Hello In a gold heap leach is there a relationship between the ILS Au ppm, the dissolution rate of gold from ore, the ore grade and amount of free cyanide. If there is still free cyanide in solution will gold in ore still be soluble or is the disso...
Last commented on by Henley Munn
Consumption is around 0.39kg/t Ore is agglomerated with the agglo water at a ppm of 1000. off flow from the heap typically has a cyanide ppm of 10, although the first two cells can range up to 40ppm...
Consumption is around 0.39kg/t Ore is agglomerated with the agglo water at a ppm of 1000. off flow from the heap typically has a cyanide ppm of 10, although the first two cells can range up to 40ppm...
1
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1193
VIEWS
Started by Alex Loutou
Hi all, Could someone help me why gold dissolution lower than silver as we know silver is slower than gold and during my work in this site gold always above silver recovery. Note: leach agitate method oxyde ore gold:silver ratio 1:10 Cyanide ...
Hi all, Could someone help me why gold dissolution lower than silver as we know silver is slower than gold and during my work in this site gold always above silver recovery. Note: leach agitate method oxyde ore gold:silver ratio 1:10 Cyanide ...
Last commented on by Alex Loutou
Thank you Tesaygo, yeap, I still investigate on it include diagnostic leach test, XRD and mineralogi test. I just confuse because there are no different type of ore (source pit)
Thank you Tesaygo, yeap, I still investigate on it include diagnostic leach test, XRD and mineralogi test. I just confuse because there are no different type of ore (source pit)
2
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1338
VIEWS
Started by John KK
We are running CIL circuit , 2 leaching thanks and 7 leaching&adsorption tanks.gold deposit is a greenschist facies lode gold deposit in which mostof the gold is hosted as free gold by quartz-sulphide vein in alteredmicrogranite, with minor gold asso...
We are running CIL circuit , 2 leaching thanks and 7 leaching&adsorption tanks.gold deposit is a greenschist facies lode gold deposit in which mostof the gold is hosted as free gold by quartz-sulphide vein in alteredmicrogranite, with minor gold asso...
1
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1181
VIEWS
Started by ZAKOR METALS
Hey everyone any one who can help me with cost of a leaching system of making 300 tons per month of copper cathodes.
Hey everyone any one who can help me with cost of a leaching system of making 300 tons per month of copper cathodes.
Last replied to by Mike
somewhere between 600,000 and 60,000,000+ depending on the ore grade, mineralogy, location, and many other factors. Besides that is a very small operation about 1 to 2 t/hr. More like a pilot [...
somewhere between 600,000 and 60,000,000+ depending on the ore grade, mineralogy, location, and many other factors. Besides that is a very small operation about 1 to 2 t/hr. More like a pilot [...
3
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1494
VIEWS
Started by Joeram
I tried every acid combination. I tried roast and smelt with different fluxes. I have 2 assay's and a Lab report on my ore.I sent cons not rock, so they could only give me the amount per what I sent not on per ton. Au,lr,pd,pt&rh. It takes 1 -5 gallo...
I tried every acid combination. I tried roast and smelt with different fluxes. I have 2 assay's and a Lab report on my ore.I sent cons not rock, so they could only give me the amount per what I sent not on per ton. Au,lr,pd,pt&rh. It takes 1 -5 gallo...
Last replied to by Jose Doneiber
Hello, Joeram.Nice to meet you.Can you please give me a copy of your manual cyanide pdf ?.I am very attentive.Thank you
Hello, Joeram.Nice to meet you.Can you please give me a copy of your manual cyanide pdf ?.I am very attentive.Thank you
1
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3297
VIEWS
Started by PRefiner
Hello, My name is Cameron and I'm a Merrill Crow refiner. The mine I currently work at is brand new and I'm having troubles finding the correct flux recipe for this precip. I do not have a analysis to reference off of and it pretty much Is tr...
Hello, My name is Cameron and I'm a Merrill Crow refiner. The mine I currently work at is brand new and I'm having troubles finding the correct flux recipe for this precip. I do not have a analysis to reference off of and it pretty much Is tr...
Last replied to by Jose Doneiber
Hello my dear friend. Nice to meet you, my name is José Montoya from Colombia. I would like very much to be able to guide you a little about your process, for this I ask you please give me a more i...
Hello my dear friend. Nice to meet you, my name is José Montoya from Colombia. I would like very much to be able to guide you a little about your process, for this I ask you please give me a more i...
2
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3129
VIEWS
Started by Paulo Mrewa
I need help with design and schematics of 40tonne vat leach tanks, the old ones have had an unusually low flowrate, i need to build new ones
I need help with design and schematics of 40tonne vat leach tanks, the old ones have had an unusually low flowrate, i need to build new ones
Last commented on by Mike
I generally as long as your floor is sloped at least by at least 1% you should have flow, unless everything is plugged up as Paulo said.
I generally as long as your floor is sloped at least by at least 1% you should have flow, unless everything is plugged up as Paulo said.
4
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1470
VIEWS
Started by Millza79
Hi All, Just hoping I can ask some technical questions. In any gold or silver plants you have run: · Did you add lead nitrate, and if so, where was it added (in ball mill, separate tank etc), how much (g/t), and what was the co...
Hi All, Just hoping I can ask some technical questions. In any gold or silver plants you have run: · Did you add lead nitrate, and if so, where was it added (in ball mill, separate tank etc), how much (g/t), and what was the co...
2
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1170
VIEWS
Started by LLandwehr
I am looking for methods to predict the recovery of a single ore source from historical data, namely a blend of multiple ores in different ratios and overall recovery for each day. It's a CIL plant and the ore types are all similiar in composition an...
I am looking for methods to predict the recovery of a single ore source from historical data, namely a blend of multiple ores in different ratios and overall recovery for each day. It's a CIL plant and the ore types are all similiar in composition an...
Last replied to by Dave Tahija
As noted by Colette, the synergies between different ores in a blend are really important and make it impossible to precisely determine a specific recovery from a particular ore. If you have good data...
As noted by Colette, the synergies between different ores in a blend are really important and make it impossible to precisely determine a specific recovery from a particular ore. If you have good data...
3
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1481
VIEWS
Started by Seeker
I want to recover gold from gold cyanide solution. This solution contains hydrogen peroxide also. I have tried metal displacement method. It does not give complete gold recovery. Please suggest me some chemical method through which I can recover al...
I want to recover gold from gold cyanide solution. This solution contains hydrogen peroxide also. I have tried metal displacement method. It does not give complete gold recovery. Please suggest me some chemical method through which I can recover al...
0
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1312
VIEWS
Started by Millza79
Could anyone please tell me what the K and n values (Fleming numbers) mean for this test? What do high and low values off both values mean about the ore, and the design (in layman terms)?
Could anyone please tell me what the K and n values (Fleming numbers) mean for this test? What do high and low values off both values mean about the ore, and the design (in layman terms)?
9
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3180
VIEWS
Started by ksherren
I am looking for companies who have expertise with designing/fabricating/operating vertical carbon adsorption columns in heap leach CIC circuits.
I am looking for companies who have expertise with designing/fabricating/operating vertical carbon adsorption columns in heap leach CIC circuits.
Last replied to by rob riggir
I have some drawings of columns including NIMCIX. Cheers
I have some drawings of columns including NIMCIX. Cheers
3
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1910
VIEWS
Started by Seeker
We have a gold cyanide solution of 30 liters. We removed gold from gold fingers. We used 500 grams of commercial grade sodium cyanide and 1.5 liters of hydrogen peroxide of 36%. This solution contains 100 grams of gold around 5 grams of iron and 5 ...
We have a gold cyanide solution of 30 liters. We removed gold from gold fingers. We used 500 grams of commercial grade sodium cyanide and 1.5 liters of hydrogen peroxide of 36%. This solution contains 100 grams of gold around 5 grams of iron and 5 ...
1
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1201
VIEWS
Started by Njau
Hello, i need to know the effect of sodium ions as salt composition during leaching. if there is effect at which concentration. pls i need help
Hello, i need to know the effect of sodium ions as salt composition during leaching. if there is effect at which concentration. pls i need help
Last replied to by Ron G
I am guessing that sodium is purely a spectator but it would help for you to give approximations of the concentrations of known ions present.
I am guessing that sodium is purely a spectator but it would help for you to give approximations of the concentrations of known ions present.
1
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1276
VIEWS
Started by BUBKWEY
I have stockpiled several thousand tons of TAILINGS in my former Mining Site, which have Very much content of Copper (>10,000 ppm). Silver and Sulphur are there as well though not at an alarming quantity as that of Copper (Silver ~4000ppm, Sulphur...
I have stockpiled several thousand tons of TAILINGS in my former Mining Site, which have Very much content of Copper (>10,000 ppm). Silver and Sulphur are there as well though not at an alarming quantity as that of Copper (Silver ~4000ppm, Sulphur...
2
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1678
VIEWS
Please join and login to participate and leave a comment.
One aspect which we ignore is the particle size and dry moisture content of the ore. you nees to dry the tailings ,reduce the size into powder and mix with lime. During your solution dosing, let the...