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913
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Started by joshua cheyo
I used this procedure to determine specific gravity of an ore. Is the method accurate?
I used this procedure to determine specific gravity of an ore. Is the method accurate?
Last replied to by Mike
If the sample was a liquid, that would be correct. If the sample was a solid (several different particles) then not exactly as you need to account for the voids.
If the sample was a liquid, that would be correct. If the sample was a solid (several different particles) then not exactly as you need to account for the voids.
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845
VIEWS
Started by SSSlucin
I recently aquired several raw or uncut stones possibly moisanite or saphire have heated a few to glowing point and dropped in cold water. So my question is what other stones aside from the afore menchioned are capable of this type of therma...
I recently aquired several raw or uncut stones possibly moisanite or saphire have heated a few to glowing point and dropped in cold water. So my question is what other stones aside from the afore menchioned are capable of this type of therma...
Last replied to by Mike
It will depend on the the individual structure of each mineral sample. If there are any significant inclusion or fractures planes (which may not be visible) then the stone can fracture quite signifi...
It will depend on the the individual structure of each mineral sample. If there are any significant inclusion or fractures planes (which may not be visible) then the stone can fracture quite signifi...
3
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1032
VIEWS
Started by Nick H
So I've got a project I'm working on that I need help finding a material for. I'm a fountain pen enthusiast, and I'm trying to find a material to make flexible nibs out of that would improve upon the current standard of 14 karat gold. It needs to be ...
So I've got a project I'm working on that I need help finding a material for. I'm a fountain pen enthusiast, and I'm trying to find a material to make flexible nibs out of that would improve upon the current standard of 14 karat gold. It needs to be ...
2
REPLIES
968
VIEWS
Started by alex.gould
Hi, a customer has approached us to make new grate and 'cap' for their vibratory ball mill. The barrel is about 28" in diameter, and 36" long, using about 2000lbs of ball charge. We are hoping to get more longevity from the grate, so the idea is to f...
Hi, a customer has approached us to make new grate and 'cap' for their vibratory ball mill. The barrel is about 28" in diameter, and 36" long, using about 2000lbs of ball charge. We are hoping to get more longevity from the grate, so the idea is to f...
2
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995
VIEWS
Started by bja2399
As pure metal elements get colder, close to absolute zero, do their protons and neutrons lose their ability to avoid combining with other atoms especially if the system is under great pressure, say 300 GPa? Could they combine to form other elem...
As pure metal elements get colder, close to absolute zero, do their protons and neutrons lose their ability to avoid combining with other atoms especially if the system is under great pressure, say 300 GPa? Could they combine to form other elem...
1
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1159
VIEWS
Started by BentFunky
How selective is ammonium chloride when precipitating Pt from aqua regia? For example, will it also precipitate base metals from aqua regia?
How selective is ammonium chloride when precipitating Pt from aqua regia? For example, will it also precipitate base metals from aqua regia?
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1039
VIEWS
Started by Opie_Ute
We have a fan at my work, which has ~15% dilute sulfuric acid unintentionally pulled into the gas stream. The fan wheel and housing are constructed of 916L stainless steel. For many years the fan shaft had a 916L stainless steel sleeve on the portion...
We have a fan at my work, which has ~15% dilute sulfuric acid unintentionally pulled into the gas stream. The fan wheel and housing are constructed of 916L stainless steel. For many years the fan shaft had a 916L stainless steel sleeve on the portion...
1
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937
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7
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1146
VIEWS
Started by Johnsonwt
Hi there, I have been going through much R&D to with a product to find one that is strong enough and rust proof. The latest is carbon steel with a zinc coating.. though salt water seems to penetrate it and cause blackening and some build up...
Hi there, I have been going through much R&D to with a product to find one that is strong enough and rust proof. The latest is carbon steel with a zinc coating.. though salt water seems to penetrate it and cause blackening and some build up...
1
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1907
VIEWS
Started by Seeker
Does rhodium dissolve in aqua regia, if yes, can hot aqua regia speed up the dissolution?
Does rhodium dissolve in aqua regia, if yes, can hot aqua regia speed up the dissolution?
Last replied to by
Rod pylasty rozpuści się w gorącej wodzie królewskiej , ale jeżeli jest w sztabce po stopieniu będzie to trwało wieki. Wtedy do rozpuszczania najlepiej zastosować K2S2O8. Rozpuszczanie w sto...
Rod pylasty rozpuści się w gorącej wodzie królewskiej , ale jeżeli jest w sztabce po stopieniu będzie to trwało wieki. Wtedy do rozpuszczania najlepiej zastosować K2S2O8. Rozpuszczanie w sto...
2
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1321
VIEWS
Started by lnldtt
Hi everyone, I'm looking for a metallurgical software to simulate a heap leaching operation, in order to forecast plant metal production. My first choice is Metsim but is there any other software that anyone could recommend for this specific applicat...
Hi everyone, I'm looking for a metallurgical software to simulate a heap leaching operation, in order to forecast plant metal production. My first choice is Metsim but is there any other software that anyone could recommend for this specific applicat...
Last replied to by SIMetallurgist
Agree with Todd -Metsim -GoldSim -Excel Macro based model - many consultants can build this for you. You will want to understand your heap leach test work data very well before starting to model. ...
Agree with Todd -Metsim -GoldSim -Excel Macro based model - many consultants can build this for you. You will want to understand your heap leach test work data very well before starting to model. ...
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1035
VIEWS
Started by Mreza555
Is there any specific instrument that directly determines sticking index of pellets? or it should be done just by calculations from reduction processes?
Is there any specific instrument that directly determines sticking index of pellets? or it should be done just by calculations from reduction processes?
2
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1269
VIEWS
Started by Millza79
Wasn't sure where to put this. What exactly are "marketing costs" when it comes to sending concentrates to smelters? Are they TCs/RCs or something else?
Wasn't sure where to put this. What exactly are "marketing costs" when it comes to sending concentrates to smelters? Are they TCs/RCs or something else?
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1089
VIEWS
Started by kevind
I'm looking for help with processing ore containing gold, silver, and copper. I live in fairly remote location in Baja California on the Sea of Cortez, (an hour by boat from a small town with basics that is 6 hours from a city) and acquiring certain...
I'm looking for help with processing ore containing gold, silver, and copper. I live in fairly remote location in Baja California on the Sea of Cortez, (an hour by boat from a small town with basics that is 6 hours from a city) and acquiring certain...
1
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1185
VIEWS
Started by nhngh
Hi everyone, I'm a newbie here. I don't know if I'm posting in the right place. Could anyone please tell me how to determine which beneficiation technique would be most suitable for beneficiating a Bauxite ore by using the physical parameters of Gib...
Hi everyone, I'm a newbie here. I don't know if I'm posting in the right place. Could anyone please tell me how to determine which beneficiation technique would be most suitable for beneficiating a Bauxite ore by using the physical parameters of Gib...
1
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1338
VIEWS
Started by biggerthanpenny
Hi all, I know this is a long shot but does anyone have any information on how to source any of these software packages? The company that produced the software was Mineral Technologies International (http://www.mineraltech.com/MODSIM/index.html), I...
Hi all, I know this is a long shot but does anyone have any information on how to source any of these software packages? The company that produced the software was Mineral Technologies International (http://www.mineraltech.com/MODSIM/index.html), I...
1
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1286
VIEWS
Started by Mreza555
Hi I am working on a ARL8860 instrument and the main use is for copper industry. they use fire assay technique to analyze precious metals. is there an individual "Fire assay Module" for this instrument? or it can be done just by calibrations? Thank...
Hi I am working on a ARL8860 instrument and the main use is for copper industry. they use fire assay technique to analyze precious metals. is there an individual "Fire assay Module" for this instrument? or it can be done just by calibrations? Thank...
1
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1201
VIEWS
Started by MSKabir
During rotation of a SAG mill, the three prominent zones are the grinding zone, tumbling or cascading zone and the cataracting zone (crushing zone). Are there any studies about the percentage of wear in the areas mentioned and what type of wear domin...
During rotation of a SAG mill, the three prominent zones are the grinding zone, tumbling or cascading zone and the cataracting zone (crushing zone). Are there any studies about the percentage of wear in the areas mentioned and what type of wear domin...
2
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1286
VIEWS
Started by richardh
Hi I need assistance in calculating the end velocity of a 278.45 m3/h slurry of 1.6 SG density down a 45 degree rubber lined steel pipe of 480mm inner diameter. The fluid enters the pipe at near zero velocity. The vertical drop is 6.8m and pipe leng...
Hi I need assistance in calculating the end velocity of a 278.45 m3/h slurry of 1.6 SG density down a 45 degree rubber lined steel pipe of 480mm inner diameter. The fluid enters the pipe at near zero velocity. The vertical drop is 6.8m and pipe leng...
1
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2336
VIEWS
Started by Angela
Our lab guy has asked about different types of rhodanine: apparently he found cheap stuff and expensive stuff. I thought that there was only one, but I never had to prepare it, myself. An EPA procedure (https://www.epa.gov/sites/production/files/20...
Our lab guy has asked about different types of rhodanine: apparently he found cheap stuff and expensive stuff. I thought that there was only one, but I never had to prepare it, myself. An EPA procedure (https://www.epa.gov/sites/production/files/20...
2
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1225
VIEWS
Started by spoch
Hi, We operate a tin mining operation in central Nigeria that is an alluvial deposit. The ore sand comes with a lot of boulders. Initially we were using a grizzly but this has led to a lot of plant idle time getting because of the time it takes to p...
Hi, We operate a tin mining operation in central Nigeria that is an alluvial deposit. The ore sand comes with a lot of boulders. Initially we were using a grizzly but this has led to a lot of plant idle time getting because of the time it takes to p...
1
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1870
VIEWS
Started by rockape888
Hi, I am evaluating test work completed on a circuit where gravity tails are put through a float circuit. i.e. concentration of the rougher feed. Gravity circuit is likely a Knelson concentrator. Is it possible to scale up this type of circuit to 5 ...
Hi, I am evaluating test work completed on a circuit where gravity tails are put through a float circuit. i.e. concentration of the rougher feed. Gravity circuit is likely a Knelson concentrator. Is it possible to scale up this type of circuit to 5 ...
Last replied to by Gene Cheeseman
Hi Rockape, 5Mtpa is approximately 600 tph. The largest Falcon or Knelson concentrators top out at around 400 tph. If more capacity is needed multiple units are used in parallel - some plants hav...
Hi Rockape, 5Mtpa is approximately 600 tph. The largest Falcon or Knelson concentrators top out at around 400 tph. If more capacity is needed multiple units are used in parallel - some plants hav...
1
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1587
VIEWS
Started by Mreza555
Hello everyone there is a Leco CS230 instrument with a high sulfur detector. is it possible to have an extra low sulfur detector simultaneously ? or should we change the detector for low sulfur analysis ? Thanks
Hello everyone there is a Leco CS230 instrument with a high sulfur detector. is it possible to have an extra low sulfur detector simultaneously ? or should we change the detector for low sulfur analysis ? Thanks
0
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1153
VIEWS
Started by sajjadaghazadeh
Hello Everyone; I hope you are doing great. I really need your help and hope mine guys could help me. The fact is that we have faced a very low liberation degree in our iron processing plant. The iron concentration takes place by using primay and s...
Hello Everyone; I hope you are doing great. I really need your help and hope mine guys could help me. The fact is that we have faced a very low liberation degree in our iron processing plant. The iron concentration takes place by using primay and s...
0
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1183
VIEWS
Started by metalshaper
Hello everyone, I know this question doesn't really fit anywhere on this site but I am in need of some help with zinc sheet metal. I am a metalshaper and have been asked by a customer to build a gas tank out of zinc sheet. The sheets are .04...
Hello everyone, I know this question doesn't really fit anywhere on this site but I am in need of some help with zinc sheet metal. I am a metalshaper and have been asked by a customer to build a gas tank out of zinc sheet. The sheets are .04...
1
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1405
VIEWS
Started by Henryezra
Hi all, just a quick one. Say your operation had hypersaline process water with an SG of 1.1. When calibrating the Marcy scale for %solids determination, do you use fresh water with an sg close to 1, or the process water used during milling? Thanks....
Hi all, just a quick one. Say your operation had hypersaline process water with an SG of 1.1. When calibrating the Marcy scale for %solids determination, do you use fresh water with an sg close to 1, or the process water used during milling? Thanks....
Last replied to by Mike
Fresh water at its densest (at 4 °C or 39.2 °F) alternatively at room temperature (20 °C or 68 °F). Nonetheless, the temperature and pressure must be specified for both the sample and the referenc...
Fresh water at its densest (at 4 °C or 39.2 °F) alternatively at room temperature (20 °C or 68 °F). Nonetheless, the temperature and pressure must be specified for both the sample and the referenc...
3
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2607
VIEWS
Started by Yvette314
Good day - I want to determine the sample size needed for a run-of-mine. I want to determine the sample mass needed by particle size. I've created a tool determining the variance between the size fractions for the RoM PSD, and then based on that, and...
Good day - I want to determine the sample size needed for a run-of-mine. I want to determine the sample mass needed by particle size. I've created a tool determining the variance between the size fractions for the RoM PSD, and then based on that, and...
Spent catalyst from a refinery setting contains hydrocarbons in addition to spent metals, coke, alumina, silica, sulfur & a host of transition metal impurities. Once the shipment reaches a metals recy...