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1159
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Started by Ashir hashmi
Hi everyone I have a sulphide ore concentrated by flotation, contains au, PD, rh, ir (according to fire assay) I am looking to smelt the concentrates, any one can help?
Hi everyone I have a sulphide ore concentrated by flotation, contains au, PD, rh, ir (according to fire assay) I am looking to smelt the concentrates, any one can help?
Last replied to by
Jeżeli to jeszcze aktualne ... Jakoś ten temat wcześniej przeoczyłem... 1. Stężony HNO3. Gotowanie do zaniku NO2. Przefiltrować i odstawić do redukcji Pd Redukcja Pd : kwas mrówkowy + s...
Jeżeli to jeszcze aktualne ... Jakoś ten temat wcześniej przeoczyłem... 1. Stężony HNO3. Gotowanie do zaniku NO2. Przefiltrować i odstawić do redukcji Pd Redukcja Pd : kwas mrówkowy + s...
1
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1407
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Started by John KK
Dear All We ruining CIL plant , after stripping we wash the gold mud by nitric acid and then we add HCl to precipitate silver in the solution to form silver Chloride ,since the beginning We have collected about 6 tons silver chloride. We used to s...
Dear All We ruining CIL plant , after stripping we wash the gold mud by nitric acid and then we add HCl to precipitate silver in the solution to form silver Chloride ,since the beginning We have collected about 6 tons silver chloride. We used to s...
1
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962
VIEWS
Started by elie
Hello all, this may be a bit of an unusual question. I would please like to seek expertise on estimating the melt value of Lebanese Pounds coins, the 500 LBP and 250 LBP denominations. I can potentially send samples if needed.References to the coins ...
Hello all, this may be a bit of an unusual question. I would please like to seek expertise on estimating the melt value of Lebanese Pounds coins, the 500 LBP and 250 LBP denominations. I can potentially send samples if needed.References to the coins ...
1
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1080
VIEWS
Started by mehrdadtaheran
I am new to electrowinning and I want to start a setup in our center for working on zinc electrowinning. I do not know which type of potentiostat (the associated parameters)will be OK for a research project? If anyone can help, I appreciate that.
I am new to electrowinning and I want to start a setup in our center for working on zinc electrowinning. I do not know which type of potentiostat (the associated parameters)will be OK for a research project? If anyone can help, I appreciate that.
6
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1308
VIEWS
Started by John KK
Hello, We have silver chloride precipitate , we want to smelt it. Is there anyone who have smelted. Regards,
Hello, We have silver chloride precipitate , we want to smelt it. Is there anyone who have smelted. Regards,
Last replied to by
Suspended (very fine) silver in gelatin should fall off when heated and added water. 2. After adding plenty of warm water and dissolving the gel (turning the gel into sol), add the anionic floccul...
Suspended (very fine) silver in gelatin should fall off when heated and added water. 2. After adding plenty of warm water and dissolving the gel (turning the gel into sol), add the anionic floccul...
4
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1704
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Started by John KK
Dear All We run CIL plant , at this time we have large amount of fine carbon collected with grade 100-150 g/t, with current high gold price we are thinking a way to get the gold. Is there any proved method to recover gold from fine carbon. Reg...
Dear All We run CIL plant , at this time we have large amount of fine carbon collected with grade 100-150 g/t, with current high gold price we are thinking a way to get the gold. Is there any proved method to recover gold from fine carbon. Reg...
Last replied to by SIMetallurgist
Speaking for the US - Just Refiners Inc. in Nevada. Also if you want to purchase a unit. https://www.kcareno.com/kca-carbon-converter
Speaking for the US - Just Refiners Inc. in Nevada. Also if you want to purchase a unit. https://www.kcareno.com/kca-carbon-converter
1
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1022
VIEWS
Started by Shiff
Just a quick question that will most likely make me look new which I am. But can I use an ingot mold for both molten copper and silver Or would they contaminate each other? And same question with the crucible Ben
Just a quick question that will most likely make me look new which I am. But can I use an ingot mold for both molten copper and silver Or would they contaminate each other? And same question with the crucible Ben
Last commented on by Mike
There are several people on this site who can provide consulting help. But you need to be more specific. What do you need help with, where do you need help at, and are you looking hire someone or lo...
There are several people on this site who can provide consulting help. But you need to be more specific. What do you need help with, where do you need help at, and are you looking hire someone or lo...
2
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1456
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Started by Vincent Cherico
Hi, my name is Vin, and I am not a metallurgist. And have no idea what I am talking about. ? However I am writing an article which touches on the recovery of gold from jewelry scrap in the 18th and 19th centuries. Is there anyone out there that is ve...
Hi, my name is Vin, and I am not a metallurgist. And have no idea what I am talking about. ? However I am writing an article which touches on the recovery of gold from jewelry scrap in the 18th and 19th centuries. Is there anyone out there that is ve...
Last commented on by Vincent Cherico
Thank you so much for your input!
Thank you so much for your input!
3
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1485
VIEWS
Started by Millza79
What is the minimum Sulphur grade that you could sell a pyrite flotation concentrate to a pyrite roster? I would have thought it would have to be at least 45% Sulphur.
What is the minimum Sulphur grade that you could sell a pyrite flotation concentrate to a pyrite roster? I would have thought it would have to be at least 45% Sulphur.
2
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1408
VIEWS
Started by nhngh
For the pyrometallurgical processing of Gibbsite using carbon as the reducing agent. The process uses ROM ore as the feed stream, and has Aluminium metal as the product, can I use Bayer process and Hall–Héroult process?
For the pyrometallurgical processing of Gibbsite using carbon as the reducing agent. The process uses ROM ore as the feed stream, and has Aluminium metal as the product, can I use Bayer process and Hall–Héroult process?
Last replied to by Vincent Cherico
My apologies, I thought this was going into a general box and not a specific answer to you question. Sorry about that. Vin
My apologies, I thought this was going into a general box and not a specific answer to you question. Sorry about that. Vin
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1421
VIEWS
Started by cmrosso
Good day, We run a Zadra elution circuit and we usually use a carbon call (using loaded and barren carbon values) to determine what gold bar we might pour. However, we also keep track of our eluant call (using pregnant solution and barren solution v...
Good day, We run a Zadra elution circuit and we usually use a carbon call (using loaded and barren carbon values) to determine what gold bar we might pour. However, we also keep track of our eluant call (using pregnant solution and barren solution v...
Last commented on by Abena Yeboah
Hello Todd I am a recent graduate in metallurgist. Can you kindly thow more light on how poor flow can cause such divergence?
Hello Todd I am a recent graduate in metallurgist. Can you kindly thow more light on how poor flow can cause such divergence?
3
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1243
VIEWS
Started by Millza79
For a magnetite concentrate that reports to a pelletising plant, what is the mass increase (say as a %, i.e. 105%) due to the pelletising reactions?
For a magnetite concentrate that reports to a pelletising plant, what is the mass increase (say as a %, i.e. 105%) due to the pelletising reactions?
Last replied to by Mike
Since you are not changing the amount of material, just how they are combined the only change will be the driving off of any volatile material. If you are ignoring the water (the bulk of the volatil...
Since you are not changing the amount of material, just how they are combined the only change will be the driving off of any volatile material. If you are ignoring the water (the bulk of the volatil...
1
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1825
VIEWS
Started by indunil
hello friends . i need a little help here I have mixed hcl and bleach with an ore i found near by and it went well in first steps came out nice yellow orange look and filtered out the existing grain out . but nothing happens with sodium metabi...
hello friends . i need a little help here I have mixed hcl and bleach with an ore i found near by and it went well in first steps came out nice yellow orange look and filtered out the existing grain out . but nothing happens with sodium metabi...
1
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1032
VIEWS
Started by paigekru
Hi, I am new to working with metals, and was hoping someone could assist me with sizing electrowinning cells. I have a zinc battery and I am considering swapping out my charge reactor with electrowinning cells, but I have no experience with the topic...
Hi, I am new to working with metals, and was hoping someone could assist me with sizing electrowinning cells. I have a zinc battery and I am considering swapping out my charge reactor with electrowinning cells, but I have no experience with the topic...
3
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1657
VIEWS
Started by Zhanbolat
Hi guys! Does anybody reccomend an effective way to grind the zinc calcine after roasting? Or how you reccomend control the particle size of calcines in and after roaster to avoid problems in further leaching. Here we have air separation and then...
Hi guys! Does anybody reccomend an effective way to grind the zinc calcine after roasting? Or how you reccomend control the particle size of calcines in and after roaster to avoid problems in further leaching. Here we have air separation and then...
1
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1469
VIEWS
Started by aeolson
Having some issues with all of a sudden brittle dore bars from our ILR. The bars used to run about 95% combined Au/g. However this has dropped to to around 80% with the new actor being pb. Cu is about 4 ppm On a typical batch we use 6 to 7 ...
Having some issues with all of a sudden brittle dore bars from our ILR. The bars used to run about 95% combined Au/g. However this has dropped to to around 80% with the new actor being pb. Cu is about 4 ppm On a typical batch we use 6 to 7 ...
2
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1338
VIEWS
Started by Jeffreybch
Hi, We normally reduce our loaded electrowinning Steel Wool with Sulphuric acid, then the acid is removed and the remaining materials are washed and dried. Later the dried materials are mixed with the following flux:60% Borax, 20 Niter, 5% Soda Ash...
Hi, We normally reduce our loaded electrowinning Steel Wool with Sulphuric acid, then the acid is removed and the remaining materials are washed and dried. Later the dried materials are mixed with the following flux:60% Borax, 20 Niter, 5% Soda Ash...
2
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1694
VIEWS
Started by Scotman
I have a slag dump that contains various grades of Zn, Pb as well as Ga and Ge. Is there a technology or process available that can economically extract these metals? Thank you
I have a slag dump that contains various grades of Zn, Pb as well as Ga and Ge. Is there a technology or process available that can economically extract these metals? Thank you
2
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1481
VIEWS
Started by lerpollock
I work with non precious metals such as aluminum, brass, and steel for my jewelry. I have recently been working with an aluminum bronze alloy called C954. After doing some research online, I came across some information that said aluminum bronze has ...
I work with non precious metals such as aluminum, brass, and steel for my jewelry. I have recently been working with an aluminum bronze alloy called C954. After doing some research online, I came across some information that said aluminum bronze has ...
Last replied to by lerpollock
Thank you. I should be able to find what I'm looking for and get some answers too. Very helpful. Much appreciated.
Thank you. I should be able to find what I'm looking for and get some answers too. Very helpful. Much appreciated.
0
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2140
VIEWS
Started by metallurgyquest
The 6 metals in equal amounts. Through the melting method in a foundry. Not the powder method. Or will this end up not mixing and having cracks due to not adhering to the Hume-Rothery rules? And if not an alloy then what will happen once all 6 are ...
The 6 metals in equal amounts. Through the melting method in a foundry. Not the powder method. Or will this end up not mixing and having cracks due to not adhering to the Hume-Rothery rules? And if not an alloy then what will happen once all 6 are ...
4
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1694
VIEWS
Started by Mineshaft
I am going to be conducting a test plot regarding phyromining this summer, and was curious if anyone knows what I should use as a lixiviant to make the gold water soluble in the ground for optimum plant uptake? I would love to stay clear of cyanide ...
I am going to be conducting a test plot regarding phyromining this summer, and was curious if anyone knows what I should use as a lixiviant to make the gold water soluble in the ground for optimum plant uptake? I would love to stay clear of cyanide ...
Last replied to by Mike
As in any metallurgical process the issue is the rate at which the process works. If a gold lixiviant is used (similar to the ones that Todd mentioned), the rate of metals uptake by the plant versus...
As in any metallurgical process the issue is the rate at which the process works. If a gold lixiviant is used (similar to the ones that Todd mentioned), the rate of metals uptake by the plant versus...
1
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1307
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Started by pelo
currently i am experiencing low gold purity and high silver in my bullion an my flux ratio is borax 60%,niter 20%, silica 10% and soda ash 10% please help out
currently i am experiencing low gold purity and high silver in my bullion an my flux ratio is borax 60%,niter 20%, silica 10% and soda ash 10% please help out
1
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1591
VIEWS
Started by LANGY
am looking the best and effective continuous method for drying fine magnetite concentrate from a plant that produces 6000tpm. the magnetite is being produced as a by-product from flotation of phosphate. the problem is that its taking long to dry a...
am looking the best and effective continuous method for drying fine magnetite concentrate from a plant that produces 6000tpm. the magnetite is being produced as a by-product from flotation of phosphate. the problem is that its taking long to dry a...
Last replied to by Mike
The two simplest methods would be either a rotary dryer (kiln) or a torus disk dryer. The rotary dryer is the simplest to operate, but may require air emissions permitting. The torus disk units re...
The two simplest methods would be either a rotary dryer (kiln) or a torus disk dryer. The rotary dryer is the simplest to operate, but may require air emissions permitting. The torus disk units re...
1
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1203
VIEWS
Started by Wulvzy
Not a metallurgist, just a blacksmith who is somewhat familiar with steel from reading. so bear with me here because i have to explain in simpleton terms. Attemping to bypass conventional steel bloomery and smelting by loading pure ingrediants -325 ...
Not a metallurgist, just a blacksmith who is somewhat familiar with steel from reading. so bear with me here because i have to explain in simpleton terms. Attemping to bypass conventional steel bloomery and smelting by loading pure ingrediants -325 ...
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1258
VIEWS
Started by Moonglow
I'm looking for a credible supplier that has good quality, preferably old CPU's, and has solid reputation.
I'm looking for a credible supplier that has good quality, preferably old CPU's, and has solid reputation.
Last replied to by Mike
Kind of depends where you are looking for them. First thought would be to go to a local services directory and look up e-waste collectors and processors.
Kind of depends where you are looking for them. First thought would be to go to a local services directory and look up e-waste collectors and processors.
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1564
VIEWS
Started by Millza79
In bench tests for testing the amenability of a pyrite roaster, is the air continually added throughout the test, or is it just added at the start?
In bench tests for testing the amenability of a pyrite roaster, is the air continually added throughout the test, or is it just added at the start?
Interesting. Hadn't considered that. I'll have to see if I can replicate the results. Appreciate the idea.