- To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN
- Use Add New Topic to ask a New Question/Discussion about Hydrometallurgy.
- OR Select a Topic that Interests you.
- Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent).
Using Add Reply allows you to Attach Images or PDF files and provide a more complete input. - Use Add Comment = to comment on someone else’s Reply in an already active Topic/Discussion.
3
REPLIES
1259
VIEWS
Started by redcastle
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...
2
REPLIES
842
VIEWS
Started by omer.canieren
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
REPLIES
990
VIEWS
Started by Tawaz
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
REPLY
1402
VIEWS
Started by Samuel Osei Annor
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
REPLIES
1047
VIEWS
Started by Pillai
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
REPLIES
935
VIEWS
Started by owor laban
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
REPLY
2356
VIEWS
Started by Millza79
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 SmartDog
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
REPLIES
983
VIEWS
Started by ronnieverceles
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
REPLY
1112
VIEWS
Started by Seeker
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
REPLY
814
VIEWS
Started by BBM01720
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.
3
REPLIES
2279
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
REPLIES
1036
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
REPLY
1210
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
REPLIES
1063
VIEWS
1
REPLY
895
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 SmartDog
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
REPLY
1237
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
REPLY
909
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
REPLY
1169
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
REPLY
834
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 SmartDog
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
REPLIES
1087
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
REPLIES
1306
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
REPLY
980
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
REPLIES
1090
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
REPLY
892
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
REPLIES
1026
VIEWS
Started by Adimulu
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
REPLY
863
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 SmartDog
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 [...
1
REPLY
1593
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...
Please join and login to participate and leave a comment.
What is the grade of your tailings? You may need to do a highlevel study to assess the economics.