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Started by rgardila
Hi Everybody, Someone have information about lab programs to evaluate for a specific case the convenience of use limestone in the neutralisation of an AMD? I would appreciate your comments. Regards, Rafael
Hi Everybody, Someone have information about lab programs to evaluate for a specific case the convenience of use limestone in the neutralisation of an AMD? I would appreciate your comments. Regards, Rafael
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Started by brettsylvester
We produce a sulphide copper concentrate at moistures ranging from 11-13% on average but require a moisture of no more than 10.6% for shipment (and of course would like to achieve even lower moistures in order to save on shipping costs). At presen...
We produce a sulphide copper concentrate at moistures ranging from 11-13% on average but require a moisture of no more than 10.6% for shipment (and of course would like to achieve even lower moistures in order to save on shipping costs). At presen...
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Started by cesararaya
Hello, I introduce myself, my name is Cesar Araya and I am a student of metallurgy and I am looking for a program to simulate a thickening or clarifying process. I have been told that with metsim I can simulate, but I do not know how, and the hsc che...
Hello, I introduce myself, my name is Cesar Araya and I am a student of metallurgy and I am looking for a program to simulate a thickening or clarifying process. I have been told that with metsim I can simulate, but I do not know how, and the hsc che...
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Started by Hamid72
Hello everybody What is the best method for cleaning and washing press filter cloth to reuse. Which solution clean better the cloth? Our particles are mostly chalcopyrite. Thankyou
Hello everybody What is the best method for cleaning and washing press filter cloth to reuse. Which solution clean better the cloth? Our particles are mostly chalcopyrite. Thankyou
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1600
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Started by Robert
If so the proceedings from Paste 2017 and Paste 2015 are available, open access: https://papers.acg.uwa.edu.au/f/paste Read away and comment or question here.
If so the proceedings from Paste 2017 and Paste 2015 are available, open access: https://papers.acg.uwa.edu.au/f/paste Read away and comment or question here.
Last replied to by David
this is how little I know... Basics of Paste Backfill Systems https://www.911metallurgist.com/basics-paste-backfill-systems/
this is how little I know... Basics of Paste Backfill Systems https://www.911metallurgist.com/basics-paste-backfill-systems/
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Started by knvaid
I am looking for best polymer for thickening Kaolin clay slurry without affecting its brightness value. Anyone can help us in this regard? and aslo what should be the dosage of that polymer?
I am looking for best polymer for thickening Kaolin clay slurry without affecting its brightness value. Anyone can help us in this regard? and aslo what should be the dosage of that polymer?
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Started by Teggry
Hi I have recently been involve in commissioning a filter belt. We are getting some loud howling noises coming from it and I have pretty well ruled out drive drum slipppage. Any ideas?
Hi I have recently been involve in commissioning a filter belt. We are getting some loud howling noises coming from it and I have pretty well ruled out drive drum slipppage. Any ideas?
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Started by Ashwini M
Can someone help me know how to calculate rise rate(m/hr) in thickener.
Can someone help me know how to calculate rise rate(m/hr) in thickener.
Last replied to by Paul Morrow
Read young one, read: https://www.911metallurgist.com/blog/settling-and-thickening-test-procedure https://www.911metallurgist.com/dewatering-thickening/settling-test-procedure/
Read young one, read: https://www.911metallurgist.com/blog/settling-and-thickening-test-procedure https://www.911metallurgist.com/dewatering-thickening/settling-test-procedure/
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Started by sajjadaghazadeh
Can someone help me with a problem in tailing filteration? The fact is that thickener underflow was supposed to go through vacuum disk filter, however, due to highly content of clay minerals, montmorillonite etc, it constantly blocked. So we removed...
Can someone help me with a problem in tailing filteration? The fact is that thickener underflow was supposed to go through vacuum disk filter, however, due to highly content of clay minerals, montmorillonite etc, it constantly blocked. So we removed...
Last commented on by Donlon
agree with Rheomet about desliming, then you can get high specific throughput from filter, but what to do with the slime laden water? What is the driver? is it water scarcity or TSF constraint requiri...
agree with Rheomet about desliming, then you can get high specific throughput from filter, but what to do with the slime laden water? What is the driver? is it water scarcity or TSF constraint requiri...
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Started by Rezaghogha75
I need to clear a bogged thickener. it has no rakes and we need it to be cleared within a day or two
I need to clear a bogged thickener. it has no rakes and we need it to be cleared within a day or two
Last replied to by MineralFrothFlotation
Dear Reza , Is it a concrete structure or metal ? Is it recently got jam or since long time ? If it is a concrete structure and recently got jam and diameter of the thickener is big. You may plac...
Dear Reza , Is it a concrete structure or metal ? Is it recently got jam or since long time ? If it is a concrete structure and recently got jam and diameter of the thickener is big. You may plac...
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Started by Christiaan Lourens
Hi. I want to know the design considerations for a High Rate Thickener that will be used to separate platinum solids from used mining water which forms a slurry with an inlet slurry velocity of 75 [l/s] and a solids percentage of 0.5 [%&...
Hi. I want to know the design considerations for a High Rate Thickener that will be used to separate platinum solids from used mining water which forms a slurry with an inlet slurry velocity of 75 [l/s] and a solids percentage of 0.5 [%&...
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Started by Hamid72
Hello everyone I am working on pressure filter and I need some help about: 1) what is the best and fastest method for detecting the damaged cloth? 2) what are the parameters that affect on chamber filling when feeding is in progress in other words...
Hello everyone I am working on pressure filter and I need some help about: 1) what is the best and fastest method for detecting the damaged cloth? 2) what are the parameters that affect on chamber filling when feeding is in progress in other words...
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3392
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Started by Robert
Seitz, R, 2016 solid-liquid separation - commentary and references - thickeners Solid-liquid separation processes including thickeners and filters are a critical component of concentrators, including concentrate and tailings handling and intermediat...
Seitz, R, 2016 solid-liquid separation - commentary and references - thickeners Solid-liquid separation processes including thickeners and filters are a critical component of concentrators, including concentrate and tailings handling and intermediat...
Last replied to by Christiaan Lourens
Hi Robert. I have a new question, what is the design parameters for a high rate thickener for platinum mineral processing. And also do you have a typical underflow density of a high rate thickener. ...
Hi Robert. I have a new question, what is the design parameters for a high rate thickener for platinum mineral processing. And also do you have a typical underflow density of a high rate thickener. ...
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1600
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Started by Subhash-Kumar-Roy
There is an issue with the CN ppm in the tailings pond, two camels got into the pond area with one camel dying from drinking the water (gate to pond was left open) it is now at 100ppm where the environmental limit is only 10ppm, we currently sprink...
There is an issue with the CN ppm in the tailings pond, two camels got into the pond area with one camel dying from drinking the water (gate to pond was left open) it is now at 100ppm where the environmental limit is only 10ppm, we currently sprink...
Last replied to by Subhash-Kumar-Roy
Hi, we assayed a sample of the Pond solution and then add Hypochlorite and re-assay for Au content. Results from test show that there is no drop in the Au values, several doses were tested after start...
Hi, we assayed a sample of the Pond solution and then add Hypochlorite and re-assay for Au content. Results from test show that there is no drop in the Au values, several doses were tested after start...
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Started by jerry andoh
i am currently thickening at 212 microns with feed density of 15% solids however, i want to regrind from 212 microns to 45 microns and thicken to about 55% solids. my major worry is the capacity of my thickener which per design is at 24t/hr but i a...
i am currently thickening at 212 microns with feed density of 15% solids however, i want to regrind from 212 microns to 45 microns and thicken to about 55% solids. my major worry is the capacity of my thickener which per design is at 24t/hr but i a...
Last commented on by MineralFrothFlotation
Dear Jerry , just trying to analyze this thickening issue from different angle . If your process is capable to settle the fines very fast , in that way you can pump the slurry very fast and obviously...
Dear Jerry , just trying to analyze this thickening issue from different angle . If your process is capable to settle the fines very fast , in that way you can pump the slurry very fast and obviously...
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Started by Olga
Hello collegues! Nowadays, paste thickening is very common, for instance, in China and other countries, but still not in Russia. Please advice, what are the main conditions of use, what are the key tailings characteristics that determine its use. ...
Hello collegues! Nowadays, paste thickening is very common, for instance, in China and other countries, but still not in Russia. Please advice, what are the main conditions of use, what are the key tailings characteristics that determine its use. ...
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Started by Cindy ccindie1994
hello Tailings effluent from the tailings dam is brought back into the hydrometallurgical plant system and raw water from a nearby river is also used in the plant. I believe they are heavy metals and other components still present in the effluent si...
hello Tailings effluent from the tailings dam is brought back into the hydrometallurgical plant system and raw water from a nearby river is also used in the plant. I believe they are heavy metals and other components still present in the effluent si...
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Started by anjanisail
How to calculate the evaporation loss and seepage loss of water from a Tailing Pond. If there is any thumb rule for calculation of above. Particularly I am looking for Iron ore Application. How to derive what will be the Net water which can be recycl...
How to calculate the evaporation loss and seepage loss of water from a Tailing Pond. If there is any thumb rule for calculation of above. Particularly I am looking for Iron ore Application. How to derive what will be the Net water which can be recycl...
Last replied to by David
https://www.911metallurgist.com/estimate-seepage-tailings-dams/ on Determining Mill Tailings Dam Seepage
https://www.911metallurgist.com/estimate-seepage-tailings-dams/ on Determining Mill Tailings Dam Seepage
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Started by Amare Goitom
hello all, We have, tailing water treatment to reuse and avoid pipe scaling (due to gypsum) in plant, with addition of lime. but I realize that the sulfate ions increase after it goes some reduction. can you help me what caused the reformation of SO...
hello all, We have, tailing water treatment to reuse and avoid pipe scaling (due to gypsum) in plant, with addition of lime. but I realize that the sulfate ions increase after it goes some reduction. can you help me what caused the reformation of SO...
Last commented on by Amare Goitom
thanks gents..
thanks gents..
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1437
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Started by Billy
Hi all, anyone could share how to quantify cyanide loss in ponds due to UV and HCN volatilisation!? Thanks
Hi all, anyone could share how to quantify cyanide loss in ponds due to UV and HCN volatilisation!? Thanks
Last replied to by David
Billy, you certainly did not read the 389 PDF nor any of the links Paul gave you. The 1st PDF mentions 'sunlight' 10 time and UV over 100x. KINETICS OF NATURAL DEGRADATION OF CYANIDE FROM GOLD MILL...
Billy, you certainly did not read the 389 PDF nor any of the links Paul gave you. The 1st PDF mentions 'sunlight' 10 time and UV over 100x. KINETICS OF NATURAL DEGRADATION OF CYANIDE FROM GOLD MILL...
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Started by Boyd
hi all, i need help with the settling test procedure and calculation of how many millilitres of flocculant needed to be added to 1 litre pulp. we have 3 types of flocculant on site and i need to know the effectiveness of each. i want to make 0.05 a...
hi all, i need help with the settling test procedure and calculation of how many millilitres of flocculant needed to be added to 1 litre pulp. we have 3 types of flocculant on site and i need to know the effectiveness of each. i want to make 0.05 a...
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2575
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Started by Boyd
Hello everyone, i need help with the size of cyclone i can install to act as a bypass to the overloaded concentrate thickener and avoid dirt overflow. Basicaly i want to split the feed to thickener in 40% to 60% or what ever percentage of feed to go...
Hello everyone, i need help with the size of cyclone i can install to act as a bypass to the overloaded concentrate thickener and avoid dirt overflow. Basicaly i want to split the feed to thickener in 40% to 60% or what ever percentage of feed to go...
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Started by martie
Hello there, am interning at a gold mine where there are problems with the clarity of the overflow of the pre-leach thickeners. Initially, only flocc was used at 0.1% strength. Now we are testing a coagulant as well at different dilutions on the ...
Hello there, am interning at a gold mine where there are problems with the clarity of the overflow of the pre-leach thickeners. Initially, only flocc was used at 0.1% strength. Now we are testing a coagulant as well at different dilutions on the ...
Last replied to by Sammy Rabie
Hi Martie It might also be a good idea to check if your material even needs a coagulant. A coagulant is generally only needed in cases where the material properties is such that floc does not work, n...
Hi Martie It might also be a good idea to check if your material even needs a coagulant. A coagulant is generally only needed in cases where the material properties is such that floc does not work, n...
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Started by Victor K
Hi everyone! I am interested in conducting a study concerning the performance of a natural coagulant in sedimentation process. My focus is to use a Lady's finger fruit (also known as OKRA) and compare its performance with the artificial one, such as ...
Hi everyone! I am interested in conducting a study concerning the performance of a natural coagulant in sedimentation process. My focus is to use a Lady's finger fruit (also known as OKRA) and compare its performance with the artificial one, such as ...
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Started by Crmnt
Hello everybody, I need some documents about calculating wash recovery, metal recovery, how many thickener we need for CCD system.
Hello everybody, I need some documents about calculating wash recovery, metal recovery, how many thickener we need for CCD system.
Last replied to by Maya Rothman
After your reading, maybe connect with https://www.linkedin.com/in/joseph-kafumbila-616a8936 as I think he may understand CCD well.
After your reading, maybe connect with https://www.linkedin.com/in/joseph-kafumbila-616a8936 as I think he may understand CCD well.
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Started by Nicollas Manjengwa
Hallo there I want to use lime to increase the Ph from about 7 to anywhere between 9 - 10.5 in effluent for my experiment. How do i calculate the amount of lime to add into the effluent?
Hallo there I want to use lime to increase the Ph from about 7 to anywhere between 9 - 10.5 in effluent for my experiment. How do i calculate the amount of lime to add into the effluent?
Last replied to by David
Review this Nicollas https://www.911metallurgist.com/blog/calculate-ph-without-ph-meter
Review this Nicollas https://www.911metallurgist.com/blog/calculate-ph-without-ph-meter
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Started by Nicollas Manjengwa [closed]
Hello I intend to embark on research and later on assess effectiveness of selected bacteria species that can degrade cyanide effectively. Anyone who has been involved in such work or with any knowledgeable and guiding notes?
Hello I intend to embark on research and later on assess effectiveness of selected bacteria species that can degrade cyanide effectively. Anyone who has been involved in such work or with any knowledgeable and guiding notes?
Last replied to by Nicollas Manjengwa
Thank you very much Joel
Thank you very much Joel
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Started by New Era [closed]
We want to treat CIL tail cyanide with hydrogen peroxide to lower (destroy) free cyanide to less than 50ppm. We have CCD circuit after CIL tanks. I want know how effective it is and what kind of additional equipment required to prepare and use the ch...
We want to treat CIL tail cyanide with hydrogen peroxide to lower (destroy) free cyanide to less than 50ppm. We have CCD circuit after CIL tanks. I want know how effective it is and what kind of additional equipment required to prepare and use the ch...
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Started by Nino Bonn [closed]
Hi, I would like to ask what reagents and treatment process are used to neutralize 8-10 pH solution or waste. And it would be great if its economical at any parameters. Thanks
Hi, I would like to ask what reagents and treatment process are used to neutralize 8-10 pH solution or waste. And it would be great if its economical at any parameters. Thanks
Last replied to by Bob Mathias
Nino, what is in your water that you do not like? Any metals? Cyanide? Or are you only looking to meet pH specifications?
Nino, what is in your water that you do not like? Any metals? Cyanide? Or are you only looking to meet pH specifications?
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2084
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Started by ianvallecera [closed]
How can we neutralize a pregnant leach solution to discharge to river? The pregnant leach solution pond contains 3500m3 of solution containing 18 g/liter Fe and 5 g/liter Ni at a pH of 1.0Can you suggest a design for simple plan to neutralize the P...
How can we neutralize a pregnant leach solution to discharge to river? The pregnant leach solution pond contains 3500m3 of solution containing 18 g/liter Fe and 5 g/liter Ni at a pH of 1.0Can you suggest a design for simple plan to neutralize the P...
Last commented on by Dane Smith
HI, just as a note... Iron will only precipitate at low pH if it of the correct Oxidation state. if not, you will need to add an Oxidation step in or push the pH >11. Look up processes called "hig...
HI, just as a note... Iron will only precipitate at low pH if it of the correct Oxidation state. if not, you will need to add an Oxidation step in or push the pH >11. Look up processes called "hig...
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Started by Rajesh Sharma [closed]
How to find the right quantity of mixing the flocculant in water by thickener feed?
How to find the right quantity of mixing the flocculant in water by thickener feed?
Last replied to by Bob Mathias
You best conduct simple laboratory settling tests. Did you read https://www.911metallurgist.com/dewatering-thickening/flocculant-dosage/ https://www.911metallurgist.com/blog/flocculation-test-pro...
You best conduct simple laboratory settling tests. Did you read https://www.911metallurgist.com/dewatering-thickening/flocculant-dosage/ https://www.911metallurgist.com/blog/flocculation-test-pro...
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Started by tungsten644 [closed]
Is it necessary to have the flocculant solution continuously being agitated while Aging or transferring it in a holding tank would do?
Is it necessary to have the flocculant solution continuously being agitated while Aging or transferring it in a holding tank would do?
Last commented on by tungsten644
Hi Dane, We are using a Magnofloc product from BASF and in reference to what you have mentioned regarding the length of flow of no more than 150m, ours here is way longer using a positive displacemen...
Hi Dane, We are using a Magnofloc product from BASF and in reference to what you have mentioned regarding the length of flow of no more than 150m, ours here is way longer using a positive displacemen...
The physical problems such as PSD will control a lot, but there are some operation points. Make sure filtration fabric is not too tight - too much pressure drop across the fabric even though filtrat...