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Started by Faraipaul
Recently we tasked a Borehole drilling company to drill up to 40m with the intention of sinking a Borehole. Long story short, at the 38th meter depth, the Driller hit into a shaft. Assays were done. Very high indeed. Now the challenge is how to proce...
Recently we tasked a Borehole drilling company to drill up to 40m with the intention of sinking a Borehole. Long story short, at the 38th meter depth, the Driller hit into a shaft. Assays were done. Very high indeed. Now the challenge is how to proce...
Last replied to by Mike
First some terminology, a "shaft" is normally verticle, or at a very slight angle. A horizontal or inclined entry would be called a "drift" or "adit". To strike a "shaft" would call for a horizzon...
First some terminology, a "shaft" is normally verticle, or at a very slight angle. A horizontal or inclined entry would be called a "drift" or "adit". To strike a "shaft" would call for a horizzon...
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943
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Started by Millza797979
Hi, Has anyone got any data for the impact on increased plant throughput on fixed plant costs (labour etc)? I would have thought that as you go higher throughput (more processing trains etc), that fixed costs would increase slightly, but happy to b...
Hi, Has anyone got any data for the impact on increased plant throughput on fixed plant costs (labour etc)? I would have thought that as you go higher throughput (more processing trains etc), that fixed costs would increase slightly, but happy to b...
Last replied to by Mike
First point is to define fixed versus variable costs. Fixed costs generally being basic infrastructure and corporate/plant overhead. Variable cost would include utilities, consumables, maintenance...
First point is to define fixed versus variable costs. Fixed costs generally being basic infrastructure and corporate/plant overhead. Variable cost would include utilities, consumables, maintenance...
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178
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Started by Bob2GLTech
Strontium is apparently used as an Aluminum alloy. I have Strontium salts and I want to electrowinn to make Sr metal. I want to buy equipment or contract produce. How do I find equipment to buy?
Strontium is apparently used as an Aluminum alloy. I have Strontium salts and I want to electrowinn to make Sr metal. I want to buy equipment or contract produce. How do I find equipment to buy?
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246
VIEWS
Started by hvyy1612
Should we choose wet or dry grinding ball mill for 660000 tonnes/year olivine, how to calculate mass balance for the ball mill? What assumptions should be applied to the design of the ball mill to satisfy the requirement that the product size is less...
Should we choose wet or dry grinding ball mill for 660000 tonnes/year olivine, how to calculate mass balance for the ball mill? What assumptions should be applied to the design of the ball mill to satisfy the requirement that the product size is less...
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271
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Started by James Hargreaves
Our site purchased a second hand CIL pilot plant to do testwork on different plant conditions. The plant consists of 6 leach tanks, each of around 65L in volume. We plan to feed the plant concentrate at around 33% solids and a flowrate of 70ml/min...
Our site purchased a second hand CIL pilot plant to do testwork on different plant conditions. The plant consists of 6 leach tanks, each of around 65L in volume. We plan to feed the plant concentrate at around 33% solids and a flowrate of 70ml/min...
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261
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Started by Lowcountryminer
elderberries are covering the ground which is rich in hard coal and slightly below it is red clay and below it is white clay(bentonite,gypsum type)where microfine,gold dust is located in all of the above too fine to pan cannot separate from clay befo...
elderberries are covering the ground which is rich in hard coal and slightly below it is red clay and below it is white clay(bentonite,gypsum type)where microfine,gold dust is located in all of the above too fine to pan cannot separate from clay befo...
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307
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Started by jakerobinsonrvp@gmail.com
Our office has our own Microfiche lab where we convert paper docs and electronic docs to microfiche as an analog backup. The process solutions contain silver. We are not experts on this subject. The article on this site on the different low-tec...
Our office has our own Microfiche lab where we convert paper docs and electronic docs to microfiche as an analog backup. The process solutions contain silver. We are not experts on this subject. The article on this site on the different low-tec...
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304
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Started by Adilbek Rustemov
Hi everyone, I am looking for various ways on how to increase efficiency of metallurgical operations within my company. We have 10 gold processing plants, most of them are CIP, CIL and some have flotation. I know some interesting innovative/pat...
Hi everyone, I am looking for various ways on how to increase efficiency of metallurgical operations within my company. We have 10 gold processing plants, most of them are CIP, CIL and some have flotation. I know some interesting innovative/pat...
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1366
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Started by koki
I want to do pH test using titration method on electrolyte solution from silver cell, any suggestions? how can i determine pH of silver electrolyte by titration method
I want to do pH test using titration method on electrolyte solution from silver cell, any suggestions? how can i determine pH of silver electrolyte by titration method
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973
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Started by elling@moltensaltsolutions.com
Can anyone please help me understand how REE electrowinning with REE fluoride salts works? The discussion on this site is helpful but I need a broader context (rock from the ground ----> REE metal product)
Can anyone please help me understand how REE electrowinning with REE fluoride salts works? The discussion on this site is helpful but I need a broader context (rock from the ground ----> REE metal product)
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508
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Started by juanfrancisco1992 [closed]
Spikes, a fashion jewelry from the US, released a few years ago a brand new set of rings made of what they call "tisten", a mixture (notice I haven't used the term alloy) of tungsten and titanium, by far the two most popular "rare" metals used today ...
Spikes, a fashion jewelry from the US, released a few years ago a brand new set of rings made of what they call "tisten", a mixture (notice I haven't used the term alloy) of tungsten and titanium, by far the two most popular "rare" metals used today ...
Last replied to by Mike
You can buy an alloy of tungsten and titanium, mostly from China https://www.americanelements.com/tungsten-titanium-alloy-58397-70-9
You can buy an alloy of tungsten and titanium, mostly from China https://www.americanelements.com/tungsten-titanium-alloy-58397-70-9
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568
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Started by Luftbert [closed]
Hi, I am a homeowner with an odd oxidation problem - hoping somebody can help. Will try to keep the story short, though it is a little interesting. For some years, a 3/4" main copper water supply pipe in my basement kept developing oxidation in a...
Hi, I am a homeowner with an odd oxidation problem - hoping somebody can help. Will try to keep the story short, though it is a little interesting. For some years, a 3/4" main copper water supply pipe in my basement kept developing oxidation in a...
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644
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Started by sbs [closed]
About 50 years ago I obtained a cast US Mint silver ingot. The Mint had a program that permitted the public to exchange silver scrap for ingots. The ingot is noted by its serial number on a US Mint Services Deposit Memorandum and Bar Delivery Rec...
About 50 years ago I obtained a cast US Mint silver ingot. The Mint had a program that permitted the public to exchange silver scrap for ingots. The ingot is noted by its serial number on a US Mint Services Deposit Memorandum and Bar Delivery Rec...
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656
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Started by jcpolizzi [closed]
Hardened steel firearm cartridge extractor part that is 9.0 cm long and tapers from 0.7 cm diameter to a hooked nipple of (what had once been 0.3 cm diameter but, because of an improper abusive procedure that caused damage by excessive wear) 0.25 cm....
Hardened steel firearm cartridge extractor part that is 9.0 cm long and tapers from 0.7 cm diameter to a hooked nipple of (what had once been 0.3 cm diameter but, because of an improper abusive procedure that caused damage by excessive wear) 0.25 cm....
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866
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Started by Eng. Cosmas Wambura [closed]
Hello, i ask for the help about the formula which I may use to get the amount of chemical/reagent required in such chemicals as they are applicable in vat leaching. Sodium Cyanide Ammonium Nitrate Hydrogen Peroxide Caustic Soda Lime Sodium Su...
Hello, i ask for the help about the formula which I may use to get the amount of chemical/reagent required in such chemicals as they are applicable in vat leaching. Sodium Cyanide Ammonium Nitrate Hydrogen Peroxide Caustic Soda Lime Sodium Su...
Last replied to by Mike
These porportions are best determined by performing metallurgical tests. see: https://www.911metallurgist.com/blog/vat-gold-leaching-dissolution
These porportions are best determined by performing metallurgical tests. see: https://www.911metallurgist.com/blog/vat-gold-leaching-dissolution
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726
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Started by Andreas [closed]
Hello. Does anyone know a formula to calculate the production rate (tons/hours) of an electrowinning circuit, given the flowrate of the electrolyte (t/h) and the concentration (g/L) of the metal in the electrolyte?
Hello. Does anyone know a formula to calculate the production rate (tons/hours) of an electrowinning circuit, given the flowrate of the electrolyte (t/h) and the concentration (g/L) of the metal in the electrolyte?
Last replied to by Mike
It kind of depends on a lot of things you did not mention, such as what you are processing. You can always start with this: https://www.911metallurgist.com/blog/wp-content/uploads/2015/11/Design-Cop...
It kind of depends on a lot of things you did not mention, such as what you are processing. You can always start with this: https://www.911metallurgist.com/blog/wp-content/uploads/2015/11/Design-Cop...
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775
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Started by Andreas [closed]
Hello. I'm trying to come up with a P&ID diagram of an Electrowinning circuit which has an electrolyte storage tank, pump, heat exchanger and then electrowinning cells. Is there anyone who can help me with a simple sketch of how this P&ID diagram sho...
Hello. I'm trying to come up with a P&ID diagram of an Electrowinning circuit which has an electrolyte storage tank, pump, heat exchanger and then electrowinning cells. Is there anyone who can help me with a simple sketch of how this P&ID diagram sho...
Last replied to by Mike
It sort of depends on a lot of things you did not mention, such as what you are processing and the rate you are processing it at.
It sort of depends on a lot of things you did not mention, such as what you are processing and the rate you are processing it at.
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871
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Started by ca1 [closed]
Hello. Can anyone recommend a lab, preferably in North America to do some assay work on a graphite ore that we got in a drill hole? Specifically we are looking for graphite type and carbon content to see if this is worth pursuing. Thanks!
Hello. Can anyone recommend a lab, preferably in North America to do some assay work on a graphite ore that we got in a drill hole? Specifically we are looking for graphite type and carbon content to see if this is worth pursuing. Thanks!
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1208
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Started by lnldtt [closed]
Hi everyone! I've been asked to test flotation tailings in column leaching. The tailings have a P80 about 120 um, so to test in a column the particles need to be agglomerated first. The question is, is it possible to agglomerate the sample with this ...
Hi everyone! I've been asked to test flotation tailings in column leaching. The tailings have a P80 about 120 um, so to test in a column the particles need to be agglomerated first. The question is, is it possible to agglomerate the sample with this ...
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786
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Started by Dirt Jeffe [closed]
anyone have XRF capable of reading a multi PGM sample that contains both Pd and Rh some Au? My understanding was that Pd and Rh each need a different probe. The product is fine as frog's hair and the last XRF machine (notorious for not reading PGMs) ...
anyone have XRF capable of reading a multi PGM sample that contains both Pd and Rh some Au? My understanding was that Pd and Rh each need a different probe. The product is fine as frog's hair and the last XRF machine (notorious for not reading PGMs) ...
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719
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Started by david.menendez [closed]
Hi to everyone, I’m trying to find spare parts for an old Denver d-12 lab flotation machine. The impeller we are using has a diameter of around 7 centimeters (2-3/4”). Does anyone know where to get this kind of spares?. We have asked to Metso ...
Hi to everyone, I’m trying to find spare parts for an old Denver d-12 lab flotation machine. The impeller we are using has a diameter of around 7 centimeters (2-3/4”). Does anyone know where to get this kind of spares?. We have asked to Metso ...
Last replied to by Mike
Try Sepor, they sell D-12 machines and parts https://www.sepor.com/product/laboratory-flotation-machine-d-12/
Try Sepor, they sell D-12 machines and parts https://www.sepor.com/product/laboratory-flotation-machine-d-12/
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811
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Started by Mreza555 [closed]
I'm working with a "LECO ONH836" elemental analyzer. we do not have enough calibration samples for Hydrogen. I wanted to know whether it is possible to add 2 one gram samples (5 ppm) instead of a 10 ppm sample. I assume that will work but Is it stand...
I'm working with a "LECO ONH836" elemental analyzer. we do not have enough calibration samples for Hydrogen. I wanted to know whether it is possible to add 2 one gram samples (5 ppm) instead of a 10 ppm sample. I assume that will work but Is it stand...
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802
VIEWS
Started by kati567 [closed]
Hello everyone I did not expose the crushed ore by the action of dilute nitric acid to remove the base metals. I poured chlorinated water and subjected to high temperatures, filtered, added FeSO4. Powder settled at the bottom. What d...
Hello everyone I did not expose the crushed ore by the action of dilute nitric acid to remove the base metals. I poured chlorinated water and subjected to high temperatures, filtered, added FeSO4. Powder settled at the bottom. What d...
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1188
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Started by Melih [closed]
First of all,for the processing of gold and tellurium ores,how exactly does the pos-roasting(calsine ores contain % 60- 62 Fe ) process work,what is the way to obtain tellurium. Second,which do you prefer for chemical analysis,aquea regea or fire a...
First of all,for the processing of gold and tellurium ores,how exactly does the pos-roasting(calsine ores contain % 60- 62 Fe ) process work,what is the way to obtain tellurium. Second,which do you prefer for chemical analysis,aquea regea or fire a...
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1255
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Started by Padre [closed]
Hi All, I'm looking for mineral processing icons/symbols that are available for download. Any package or libraries are welcome. Thank you
Hi All, I'm looking for mineral processing icons/symbols that are available for download. Any package or libraries are welcome. Thank you
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1371
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Started by John KK [closed]
We are running Gold Mill , we are using spreadsheets for metal accounting and other production reports. We are looking for sustainable data-base to avoid all the problems related to the use of spreadsheets. I need help on getting the list of proved ...
We are running Gold Mill , we are using spreadsheets for metal accounting and other production reports. We are looking for sustainable data-base to avoid all the problems related to the use of spreadsheets. I need help on getting the list of proved ...
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796
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Started by Algev [closed]
Seeking help from knowledgeable metallurgists. I would like to make amalgam's, some of the element I would like to melt together are: Selenium Gallium Which noble metals are compatible and can melted to create an amalgam for example: Selenium an...
Seeking help from knowledgeable metallurgists. I would like to make amalgam's, some of the element I would like to melt together are: Selenium Gallium Which noble metals are compatible and can melted to create an amalgam for example: Selenium an...
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929
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Started by Zimboskud [closed]
Hi All. I am desperately looking for a clear protocol for testing the loading of my carbons from CIP to assess how much gold is currently residing on them. Usually I send them to the lab - but it appears as though the accuracy of the labs results ha...
Hi All. I am desperately looking for a clear protocol for testing the loading of my carbons from CIP to assess how much gold is currently residing on them. Usually I send them to the lab - but it appears as though the accuracy of the labs results ha...
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839
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Started by jasonmaguire99 [closed]
Hi all, Our ore/float concentrate contains pyrite and arsenopyrite. I require a high arsenopyrite concentrate with as little pyrite in it as possible for some leaching testwork but have not had any luck. Does anybody have any experience with thi...
Hi all, Our ore/float concentrate contains pyrite and arsenopyrite. I require a high arsenopyrite concentrate with as little pyrite in it as possible for some leaching testwork but have not had any luck. Does anybody have any experience with thi...
Dia is 2m . So Critical Speed is 29.8 rpm. Drum Scrubbers run at 30-65% of Critical Speed (refer Ausimm doc on Drum Scrubber Design & Selection). So at the lowest limit of 30% it comes near to your 10...