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Started by Rahel John [closed]
CIL leaching...to know the amount of cyanide that can be consumed during leaching an ore contain 16% sulfur and less than 5000ppm copper
CIL leaching...to know the amount of cyanide that can be consumed during leaching an ore contain 16% sulfur and less than 5000ppm copper
1
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1387
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Started by simon@p [closed]
can ammonia be used as an alternative to remove copper from gold loaded carbon instead of cold cyanide wash
can ammonia be used as an alternative to remove copper from gold loaded carbon instead of cold cyanide wash
1
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1989
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Started by Seeker [closed]
What is the best chemical way to recover tin and lead separately from the solution containing chlorides of lead and tin? How to recover lead and tin separately from the solution containing chlorides of lead and tin through electrodeposition? Thanks...
What is the best chemical way to recover tin and lead separately from the solution containing chlorides of lead and tin? How to recover lead and tin separately from the solution containing chlorides of lead and tin through electrodeposition? Thanks...
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1251
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Started by mashafaei [closed]
We have a copper mine, which combines copper sulfur and copper oxide, that copper oxide extracted using "HEAP LEACH" process . It is now the copper sulfur was remained in the "HEAP LEACH" with a concentration about 1-5%. My questions are: Is...
We have a copper mine, which combines copper sulfur and copper oxide, that copper oxide extracted using "HEAP LEACH" process . It is now the copper sulfur was remained in the "HEAP LEACH" with a concentration about 1-5%. My questions are: Is...
1
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1124
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Started by Millza79 [closed]
Hi All, for determining heap leach recoveries, is this the formula: [(Total PLS flow (m3) * PLS Au (ppm) * Solution SG) - (Total barren liquor flow (m3) * barren liquor Au (ppm) * Solution SG)] / (Total tonnes on heap leach * Head Au gr...
Hi All, for determining heap leach recoveries, is this the formula: [(Total PLS flow (m3) * PLS Au (ppm) * Solution SG) - (Total barren liquor flow (m3) * barren liquor Au (ppm) * Solution SG)] / (Total tonnes on heap leach * Head Au gr...
Last commented on by Millza79
Thankyou.
Thankyou.
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1279
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Started by Millza79 [closed]
Does anyone have any papers or links on the metallurgical accounting for heap leach operations? I.e., where are sampling points (each solution flow, each lift etc), how are recoveries determined etc?
Does anyone have any papers or links on the metallurgical accounting for heap leach operations? I.e., where are sampling points (each solution flow, each lift etc), how are recoveries determined etc?
1
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1247
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Started by Edson aman [closed]
In most cases leaching process is done using sodium cyanide due to its high activity while in adsorption the activated carbons work well when there are many calcium ions in the pulp therefore in other words it seems like not necessary using sodium ...
In most cases leaching process is done using sodium cyanide due to its high activity while in adsorption the activated carbons work well when there are many calcium ions in the pulp therefore in other words it seems like not necessary using sodium ...
Last replied to by Mike
Cyanide is the general descriptive term applied usually to sodium cyanide (NaCN). However, the early work in cyanidation was based on the use of potassium cyanide and strengths of solution as well as ...
Cyanide is the general descriptive term applied usually to sodium cyanide (NaCN). However, the early work in cyanidation was based on the use of potassium cyanide and strengths of solution as well as ...
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3442
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Started by simon@p [closed]
hellow, I have gold ore which contains high amount of copper. I have heard that apart from flotation I could use ammonia pre-treatment to reduce the amount of copper in the ore I have bottle rolling test so I'm asking for the procedures to do th...
hellow, I have gold ore which contains high amount of copper. I have heard that apart from flotation I could use ammonia pre-treatment to reduce the amount of copper in the ore I have bottle rolling test so I'm asking for the procedures to do th...
1
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1268
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Started by jonas chihoyi [closed]
gentlemen assist me with initial cn and lime additions in a heap leach operation
gentlemen assist me with initial cn and lime additions in a heap leach operation
1
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1304
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Started by Jaime Jacob [closed]
Hello I need to modell a copper column leaching, the movement of solutions inside and the extracction of copper. Any could help me Thanks a lot
Hello I need to modell a copper column leaching, the movement of solutions inside and the extracction of copper. Any could help me Thanks a lot
Last replied to by Mike
Your main title was about heap leaching, while your actual words described column modelling. These are different things. That said, to model either one you will need to study Computation Fluid dyn...
Your main title was about heap leaching, while your actual words described column modelling. These are different things. That said, to model either one you will need to study Computation Fluid dyn...
1
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1375
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Started by vaheedghassemy [closed]
help please.I need fundamental information about solvent extraction of copper . i want to design a factory to produce 1000 kg/day copper cathode . cu in PLS is 2.5 gr/lit. please help me. thanks
help please.I need fundamental information about solvent extraction of copper . i want to design a factory to produce 1000 kg/day copper cathode . cu in PLS is 2.5 gr/lit. please help me. thanks
Last commented on by vaheedghassemy
thanks dear for your help.
thanks dear for your help.
2
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1369
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Started by Millza79 [closed]
Is there a particle size where agglomeration is NOT required prior to heap leaching? I am reading a testwork report, where the fine fraction (half inch) was agglomerated, but the coarse size fraction 92 inch) wasn't agglomerated.
Is there a particle size where agglomeration is NOT required prior to heap leaching? I am reading a testwork report, where the fine fraction (half inch) was agglomerated, but the coarse size fraction 92 inch) wasn't agglomerated.
Last replied to by Mike
A simple answer is that particle size and shape are two important parameters in optimizing heap permeability. Without agglomeration, fines clog spaces between larger ore particles in the ore bed, prev...
A simple answer is that particle size and shape are two important parameters in optimizing heap permeability. Without agglomeration, fines clog spaces between larger ore particles in the ore bed, prev...
2
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1345
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Started by viyana [closed]
hi we have hot filter cake (from zinc plant residuals) and it contains 1-2% Co and 12% manganese, i am going to recover cobalt by solvent extraction with D2EHPA, now, I need some references about design of solvent extraction plant, Is there anyone t...
hi we have hot filter cake (from zinc plant residuals) and it contains 1-2% Co and 12% manganese, i am going to recover cobalt by solvent extraction with D2EHPA, now, I need some references about design of solvent extraction plant, Is there anyone t...
1
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1256
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Started by ksherren [closed]
I am looking for information from anyone who is using thiourea in conjunction with NaCN and NaOH in their Au/Ag elution circuits. We are experiencing problems with eluting Ag and I am wondering if Thiourea could be the problem? If not, any thoughts o...
I am looking for information from anyone who is using thiourea in conjunction with NaCN and NaOH in their Au/Ag elution circuits. We are experiencing problems with eluting Ag and I am wondering if Thiourea could be the problem? If not, any thoughts o...
2
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1400
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Started by Seeker [closed]
I need a reaction vessel to remove tin, lead and zinc impurities from copper powder using HCL purity 35%. The temp. can reach up to 100°C or even more during reaction. Kindly suggest what grade of steel or some other metal can I use for this vessel?...
I need a reaction vessel to remove tin, lead and zinc impurities from copper powder using HCL purity 35%. The temp. can reach up to 100°C or even more during reaction. Kindly suggest what grade of steel or some other metal can I use for this vessel?...
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1150
VIEWS
Started by kahonde [closed]
what is the use of Aluminium sulphate and Sodium sulphate in vat leaching or leaching of ores.
what is the use of Aluminium sulphate and Sodium sulphate in vat leaching or leaching of ores.
3
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1676
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Started by redcastle [closed]
I've been given the opportunity to acquire a gold deposit that has had some testwork for heap leaching done with decent recovery. Digging through the historical papers though I've found that the only problem is that it contains a high amount of clay...
I've been given the opportunity to acquire a gold deposit that has had some testwork for heap leaching done with decent recovery. Digging through the historical papers though I've found that the only problem is that it contains a high amount of clay...
1
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1432
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Started by 14500477mada [closed]
Discuss the Procedures of; 1.Carbon-in-Pulp Extraction 2. Carbon screening and washing 3. Stripping
Discuss the Procedures of; 1.Carbon-in-Pulp Extraction 2. Carbon screening and washing 3. Stripping
Last replied to by Jorge
Follow the links below, https://www.911metallurgist.com/blog/gold-cil-process-explained
Follow the links below, https://www.911metallurgist.com/blog/gold-cil-process-explained
Carbon-In-Pulp Process Exampleshttps://www.911metallurgist.com/carbon-pulp-...
2
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1155
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Started by omer.canieren [closed]
Last replied to by omer.canieren
Hi Todd, I have tried fine grinding many times below 10 um. We could not take a good results. I need another method. Our sample does not contain so much sulfide. The problems are silica lattice and B...
Hi Todd, I have tried fine grinding many times below 10 um. We could not take a good results. I need another method. Our sample does not contain so much sulfide. The problems are silica lattice and B...
6
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1301
VIEWS
Started by Tawaz [closed]
Hie guys, I own a small copper claim with ores of up to 40% ( xrf ). I can't sell it as it is and I don't have the capital to buy any fancy equipment to beneficiate it. I am not a metallurgist, don't have a reliable lab to consult with and desperatel...
Hie guys, I own a small copper claim with ores of up to 40% ( xrf ). I can't sell it as it is and I don't have the capital to buy any fancy equipment to beneficiate it. I am not a metallurgist, don't have a reliable lab to consult with and desperatel...
1
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2002
VIEWS
Started by Samuel Osei Annor [closed]
Please what can cause a depletion of dissolved oxygen in the leaching tanks
Please what can cause a depletion of dissolved oxygen in the leaching tanks
2
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1358
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Started by Pillai [closed]
Hi I'm doing a trial with lead nitrate at the plant but it is not very successful. i have a question, where to add, at first leach tank or pre leach tank ? is it make any difference between adding lead nitrate before cyanide added and after cyanid...
Hi I'm doing a trial with lead nitrate at the plant but it is not very successful. i have a question, where to add, at first leach tank or pre leach tank ? is it make any difference between adding lead nitrate before cyanide added and after cyanid...
4
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1248
VIEWS
Started by owor laban [closed]
Hello Members, I'm doing a wolfram project with average low grade of 0.1% W in tailings and ore average grade of 0.5%W and I'm thinking of designing and implementing the followings; 1. Introducing sluice box method to recover small size ore...
Hello Members, I'm doing a wolfram project with average low grade of 0.1% W in tailings and ore average grade of 0.5%W and I'm thinking of designing and implementing the followings; 1. Introducing sluice box method to recover small size ore...
1
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2815
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Started by Millza79 [closed]
What is the purpose of bleed streams in hydromet circuit like leach, solvent extraction etc?
What is the purpose of bleed streams in hydromet circuit like leach, solvent extraction etc?
Last replied to by Mike
In any circuit where there is a large amount of recirculation material builds up, whether it is fines/slimes solids or breakdown products from the chemicals (flotation, lixivants, etc.). These degra...
In any circuit where there is a large amount of recirculation material builds up, whether it is fines/slimes solids or breakdown products from the chemicals (flotation, lixivants, etc.). These degra...
2
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1292
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Started by ronnieverceles [closed]
I am doing some research for the smelting of DORE, I need some basic information on the cost of raw cathode gold containing 75% Au and 20% Ag in the DORE. Thanks
I am doing some research for the smelting of DORE, I need some basic information on the cost of raw cathode gold containing 75% Au and 20% Ag in the DORE. Thanks
1
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1427
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Started by Seeker [closed]
Will sodium sulfite drop gold from sodium gold cyanide solution? Please also explain the reaction between the two. Thanks in advance!
Will sodium sulfite drop gold from sodium gold cyanide solution? Please also explain the reaction between the two. Thanks in advance!
1
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1127
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Started by BBM01720 [closed]
Hi. If HCL + CL is used as a leach; SMB is used to precipitate from auric chloride; the salt is HAuCL4 correct? I see I disintegrates when heated and also produces gold metal when heated further? Thanks.
Hi. If HCL + CL is used as a leach; SMB is used to precipitate from auric chloride; the salt is HAuCL4 correct? I see I disintegrates when heated and also produces gold metal when heated further? Thanks.
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Thanks Todd.