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10
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11825
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Started by vsrangarajan
Are the Woodgrove flotation reactors the new revolution in flotation? Any comparison of these machines with existing ones?
Are the Woodgrove flotation reactors the new revolution in flotation? Any comparison of these machines with existing ones?
3
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2512
VIEWS
Started by Patrickymt
I have recently been reading about using froth floatation instead of roasters to rid tin concentrates of Arsenic. Has anyone have experience or theories on the best way to go about it. What kind of collector would be best recommended. Anyone used the...
I have recently been reading about using froth floatation instead of roasters to rid tin concentrates of Arsenic. Has anyone have experience or theories on the best way to go about it. What kind of collector would be best recommended. Anyone used the...
Last commented on by Math Nope
How about processing stannite ore? I want to recover tin from stannite, what is the best way? Are gravity and flotation concentration work well for stannite?
How about processing stannite ore? I want to recover tin from stannite, what is the best way? Are gravity and flotation concentration work well for stannite?
3
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1847
VIEWS
Started by mjhabibian
I try to float the lead mineral the mineralogy is as follow: The sample consist mainly of various types of Fe hydroxides and silica together which occupies over 81 volumetric percent of the sample. The main Pb-bearing phase is actually a Fe hydroxi...
I try to float the lead mineral the mineralogy is as follow: The sample consist mainly of various types of Fe hydroxides and silica together which occupies over 81 volumetric percent of the sample. The main Pb-bearing phase is actually a Fe hydroxi...
4
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1842
VIEWS
Started by paul
I was running the project of investigating the flotation of the certain copper bearing ore. The reagents i used were PAX, AEROPHINE, interfroth, NaOH and CMC. After the analysis of the results i found that the recovery i obtained were within the rang...
I was running the project of investigating the flotation of the certain copper bearing ore. The reagents i used were PAX, AEROPHINE, interfroth, NaOH and CMC. After the analysis of the results i found that the recovery i obtained were within the rang...
Last commented on by Josue Nduwa
True! I would do MLA or QUEM SEM on the flot feed
True! I would do MLA or QUEM SEM on the flot feed
5
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1758
VIEWS
Started by Romain CADENAT
Dear All I need to transfer some phosphate froth concentrate (coming from flotation cells) and feed a dewatering hydrocyclone. What should be my average solid concentration for a correct pumping ? I consider 21% solid (weight basis). Do I need to ...
Dear All I need to transfer some phosphate froth concentrate (coming from flotation cells) and feed a dewatering hydrocyclone. What should be my average solid concentration for a correct pumping ? I consider 21% solid (weight basis). Do I need to ...
Last replied to by David
With regards to froth tenacity, it always pays to observe the ability of the froth to breakdown in launders and pump hoppers. While the majority of froths break down easily, it may be necessary to ...
With regards to froth tenacity, it always pays to observe the ability of the froth to breakdown in launders and pump hoppers. While the majority of froths break down easily, it may be necessary to ...
2
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3012
VIEWS
Started by Mahdi
Is there a way for flotation of copper oxide? Is it possible to recovery up to 75 percent achieved? I have sample that about 45% of copper oxide and about 40% recovery was achieved with the SIPX and Sodium Mercaptobenzothiazole Dithiophoishate collec...
Is there a way for flotation of copper oxide? Is it possible to recovery up to 75 percent achieved? I have sample that about 45% of copper oxide and about 40% recovery was achieved with the SIPX and Sodium Mercaptobenzothiazole Dithiophoishate collec...
2
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1404
VIEWS
Started by DORA DORA
How to separate arsine from an enargite- pyrite ore to form arsenopyrite by flotation?
How to separate arsine from an enargite- pyrite ore to form arsenopyrite by flotation?
0
REPLIES
1629
VIEWS
Started by simbarashe chauraya
Hi Guys, I recently ran a concentrate production campaign and I am a bit stuck on how to CALCULATE THE SPECIFIC POWER INPUT IN THE ROUGHER STAGE BASED ON THE KW RATING OF THE MECHANISM AND THE VOLUME OF THE FLOTATION CELL EXPRESSES AS ( KW/M3) – ...
Hi Guys, I recently ran a concentrate production campaign and I am a bit stuck on how to CALCULATE THE SPECIFIC POWER INPUT IN THE ROUGHER STAGE BASED ON THE KW RATING OF THE MECHANISM AND THE VOLUME OF THE FLOTATION CELL EXPRESSES AS ( KW/M3) – ...
1
REPLY
2247
VIEWS
Started by KUICGO
Has anyone done similar research? Ivan Brezani's work announced in the MATLAB website attracted my attention. Flotation kinetics - modeling I have an idea that it could be a part of my master's degree paper, because I really want to do somethi...
Has anyone done similar research? Ivan Brezani's work announced in the MATLAB website attracted my attention. Flotation kinetics - modeling I have an idea that it could be a part of my master's degree paper, because I really want to do somethi...
1
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2155
VIEWS
Started by priyanka muppana
what are the frothers and collectors for calcium sulphate and ferrous sulphate ?
what are the frothers and collectors for calcium sulphate and ferrous sulphate ?
Last replied to by David
Hello PM, gypsum flotation is very similar to calcium carbonate flotation but depends as well on the morphology of the material, whether it is scale like or crystal like. The general flotation of gyp...
Hello PM, gypsum flotation is very similar to calcium carbonate flotation but depends as well on the morphology of the material, whether it is scale like or crystal like. The general flotation of gyp...
1
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1423
VIEWS
Started by McDeejs
can i use flotation for a 3wt% nickeliferous ore and what reagent should i use for the flotation. If flotation is not applicable what hydromet method should i use to get a concentrate of 20% NICKEL... without pyromet
can i use flotation for a 3wt% nickeliferous ore and what reagent should i use for the flotation. If flotation is not applicable what hydromet method should i use to get a concentrate of 20% NICKEL... without pyromet
1
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4586
VIEWS
Started by maino.kaupa
I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter, PAX. What will be t...
I work in the gold mine mill were we extract gold and silver from both oxide, sulphate and transitional ore at mill rate of 680 t/h, just now we introduce NaSH replacing copper at flotation other reagent in place froth, promoter, PAX. What will be t...
Last replied to by Bob Mathias
I suppose you are trying to sulphidize the copper for flotation. OK, this depends. You need to test to know. It could be 500 to 2000 g/t NaHS. Try and you will see how sulphidizing the oxide minerals...
I suppose you are trying to sulphidize the copper for flotation. OK, this depends. You need to test to know. It could be 500 to 2000 g/t NaHS. Try and you will see how sulphidizing the oxide minerals...
2
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2317
VIEWS
Started by Bubbles
To increase the recovery in a flotation process is the stirring speed of the cell important? What is a good recommended speed RPM for the agitators? Does agitator rpm affect flotation recovery? Some say there is no optimum speed that fits all, but ...
To increase the recovery in a flotation process is the stirring speed of the cell important? What is a good recommended speed RPM for the agitators? Does agitator rpm affect flotation recovery? Some say there is no optimum speed that fits all, but ...
Last replied to by Bob Mathias
Most modern mechanical flotation cells run typically somewhere between 4 m/s to 8 m/s tip speed on their rotors. Flotation machine manufacturers generally have a design speed that is somewhere in this...
Most modern mechanical flotation cells run typically somewhere between 4 m/s to 8 m/s tip speed on their rotors. Flotation machine manufacturers generally have a design speed that is somewhere in this...
2
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1709
VIEWS
Started by knvaid
Do know how I could upgrade have kaolin clay beneficiated by flotation? Can we remove Tio2 and Fe2O3 impurities from Kaolin by using Froth flotation at commercial & industrial level?
Do know how I could upgrade have kaolin clay beneficiated by flotation? Can we remove Tio2 and Fe2O3 impurities from Kaolin by using Froth flotation at commercial & industrial level?
Last replied to by Bob Mathias
Knvaid, by sure to review https://www.911metallurgist.com/blog/beneficiation-process-kaolin-clay and the 2 PDF at the bottom.
Knvaid, by sure to review https://www.911metallurgist.com/blog/beneficiation-process-kaolin-clay and the 2 PDF at the bottom.
4
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1521
VIEWS
Started by J4
Hello how can I depress copper ore to maximize gold recovery? I want to construct research please I need your help
Hello how can I depress copper ore to maximize gold recovery? I want to construct research please I need your help
3
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6284
VIEWS
Started by Zander Barcalow
Does anyone have experience with adjustment of rotor engagement for Wemco rougher flotation cells? Currently our rotor engagement is varying between 115 and 145 mm and I am not sure which is correct or optimal to provide enough air flow to maximiz...
Does anyone have experience with adjustment of rotor engagement for Wemco rougher flotation cells? Currently our rotor engagement is varying between 115 and 145 mm and I am not sure which is correct or optimal to provide enough air flow to maximiz...
Last replied to by Craig Lockhart
Hello Zander, I have been using a variety of Wemco cells (ranging from 40 cu.ft. covered to 3500 cu.ft. tank versions) at a number of operations for over 20 years and can tell you the challenges you ...
Hello Zander, I have been using a variety of Wemco cells (ranging from 40 cu.ft. covered to 3500 cu.ft. tank versions) at a number of operations for over 20 years and can tell you the challenges you ...
1
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1986
VIEWS
Started by Obergruppenfuhrer
What do you recommend as a pH probe to measure pH in cyclone overflow tubs and in flotation cells. I have used Foxboro's but they drift within 2-3 days and once this drift occurs the measurement of high pH (>11) becomes problematic and have to b...
What do you recommend as a pH probe to measure pH in cyclone overflow tubs and in flotation cells. I have used Foxboro's but they drift within 2-3 days and once this drift occurs the measurement of high pH (>11) becomes problematic and have to b...
Last replied to by
Hi, We recalibrate our pH probes once a week but we have a cleaning routine that varies depending on probe location. Cleaning occurs because we have some deposition which affects readings. Some probe...
Hi, We recalibrate our pH probes once a week but we have a cleaning routine that varies depending on probe location. Cleaning occurs because we have some deposition which affects readings. Some probe...
2
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1492
VIEWS
Started by Etienne
Do any company use flotation for producing de-icing salt? I have an ore with ~80%NaCl and I'd like to produce a 91%NaCl salt for de-icing. Have you heard about companies that did it? I also would like to produce food salt (97%NaCl) with flotation, b...
Do any company use flotation for producing de-icing salt? I have an ore with ~80%NaCl and I'd like to produce a 91%NaCl salt for de-icing. Have you heard about companies that did it? I also would like to produce food salt (97%NaCl) with flotation, b...
Last replied to by ChrisBucknell
So just wondering what is the Pb chloride about at the head of the circuit shown?
So just wondering what is the Pb chloride about at the head of the circuit shown?
1
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1569
VIEWS
Started by Mahdi
my research is about on chemicals in the copper flotation. Ammonium dihydrogen phosphate collector selectivity is very high copper and pyrite have been depressant but declined to copper recovery. What a way to increase recovery copper. What is the me...
my research is about on chemicals in the copper flotation. Ammonium dihydrogen phosphate collector selectivity is very high copper and pyrite have been depressant but declined to copper recovery. What a way to increase recovery copper. What is the me...
Last replied to by
Haven't used it before.....but probably will show dispersing/depressing functions... Probably very similar behaviour to Potassium Dihydrogen Phosphate. Calcite flotation in acidic media is a difficu...
Haven't used it before.....but probably will show dispersing/depressing functions... Probably very similar behaviour to Potassium Dihydrogen Phosphate. Calcite flotation in acidic media is a difficu...
4
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1865
VIEWS
Started by Omurvama
Hello, Now we are having problems in the selection of the flotation collector for a copper ore, in lab test we can´t see any difference in concentrates with sodium amyl xanthate and sodium isopropyl xanthate. Based on your experience which promoter...
Hello, Now we are having problems in the selection of the flotation collector for a copper ore, in lab test we can´t see any difference in concentrates with sodium amyl xanthate and sodium isopropyl xanthate. Based on your experience which promoter...
2
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1588
VIEWS
Started by Omurvama
Hi everybody,Me and my team are working in a small plant (30-50 TPD) and we are continuously receiving new materials in order to make evaluations in a lab cell. Recently we have received a new yellow ore with more than 500 g/Ton of silver and 30% of...
Hi everybody,Me and my team are working in a small plant (30-50 TPD) and we are continuously receiving new materials in order to make evaluations in a lab cell. Recently we have received a new yellow ore with more than 500 g/Ton of silver and 30% of...
Last replied to by
I think 15 g/t collector is not enough for the heads you got. Add + collector until your froth get tight. Do it visual: Add collector, turn ON the air -> if frothy = turn OFF air and + add more...
I think 15 g/t collector is not enough for the heads you got. Add + collector until your froth get tight. Do it visual: Add collector, turn ON the air -> if frothy = turn OFF air and + add more...
11
REPLIES
2829
VIEWS
Started by rokxter
I have been involved in assaying a rock pit with sulfide ore for a couple of years. We have done gravity concentration tests and the ore loses 75% of the gold and silver value when you gravity concentrate. We did a down and dirty flotation test w...
I have been involved in assaying a rock pit with sulfide ore for a couple of years. We have done gravity concentration tests and the ore loses 75% of the gold and silver value when you gravity concentrate. We did a down and dirty flotation test w...
Last replied to by max skinner
Along with everything David is telling you, you should consider some screen analysis with assays to tell you exactly where, size fraction, your gold is. You should do this on your heads and your ta...
Along with everything David is telling you, you should consider some screen analysis with assays to tell you exactly where, size fraction, your gold is. You should do this on your heads and your ta...
15
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1998
VIEWS
Started by Reinhold Leo
I am struggling with benchmarking copper recoveries of operations with a similar type of ore. Please help
I am struggling with benchmarking copper recoveries of operations with a similar type of ore. Please help
Last replied to by Reinhold Leo
Thank you David. I am reading all the materials you have recommended . If I have any questions, I will let you know.
Thank you David. I am reading all the materials you have recommended . If I have any questions, I will let you know.
5
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1894
VIEWS
Started by sherafat71
Hi, how can do scaling up in flotation with variable air flow rate test and MFT test and OutoTec method? how rich scale up factor? in MFT method how doing tests? thanks
Hi, how can do scaling up in flotation with variable air flow rate test and MFT test and OutoTec method? how rich scale up factor? in MFT method how doing tests? thanks
1
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2574
VIEWS
Started by Question Emailed
Hi my dears. I am researchers in Iran Sarcheshmeh Copper Mine. One of the problems concentrator increases the amount of clay minerals and pyrite in flotation concentrates and the final grade will be reduced. What do you suggest for chemicals? What is...
Hi my dears. I am researchers in Iran Sarcheshmeh Copper Mine. One of the problems concentrator increases the amount of clay minerals and pyrite in flotation concentrates and the final grade will be reduced. What do you suggest for chemicals? What is...
Last replied to by David
Hello Mahdi, as you see in this paper on The effect of mixed collectors in the rougher flotation of copper HP700 and HP600 (alcohols in amine oxide) are typically used in the flotation of porphyry c...
Hello Mahdi, as you see in this paper on The effect of mixed collectors in the rougher flotation of copper HP700 and HP600 (alcohols in amine oxide) are typically used in the flotation of porphyry c...
1
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2131
VIEWS
Started by Question Emailed
We found a mineralized zone of large volume and is appears to be made of Millerite (NiS), Pentlandite and Chalcopyrite. How would we process this, separate each metal from one another? Thanks
We found a mineralized zone of large volume and is appears to be made of Millerite (NiS), Pentlandite and Chalcopyrite. How would we process this, separate each metal from one another? Thanks
Last replied to by David
Off the top of my head I don’t think this has been done. Google says a couple of micro-floats have been done. It is an interesting problem, never heard of this before. · I would separate Ni from c...
Off the top of my head I don’t think this has been done. Google says a couple of micro-floats have been done. It is an interesting problem, never heard of this before. · I would separate Ni from c...
2
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1596
VIEWS
Started by dimanmarfi
hello all In the self aerated flotation machine, how How will adjust the speed impeller according to feeding rate of pulp? for example, if pulp feeding rate is 1 ton/min, how to determine the speed of rotation of the impeller? thanks
hello all In the self aerated flotation machine, how How will adjust the speed impeller according to feeding rate of pulp? for example, if pulp feeding rate is 1 ton/min, how to determine the speed of rotation of the impeller? thanks
Last replied to by David
Thanks Wayne. This same article can also be seen free at http://www.cfd.com.au/cfd_conf06/PDFs/028Koh.pdf
Thanks Wayne. This same article can also be seen free at http://www.cfd.com.au/cfd_conf06/PDFs/028Koh.pdf
2
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1564
VIEWS
Started by f.hatami
in industry scale, the level of froth in flotation cells(column, agitated) suddenly comes down and we say the cell is in breathing, what is the cause of this matter?
in industry scale, the level of froth in flotation cells(column, agitated) suddenly comes down and we say the cell is in breathing, what is the cause of this matter?
Last replied to by
Hi f.hatami, consider that your level controller or drain value is faulty (sticky) or too slow to react to hold a steady level.
Hi f.hatami, consider that your level controller or drain value is faulty (sticky) or too slow to react to hold a steady level.
2
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1670
VIEWS
Started by f.hatami
i read a paper with title "Fine pyrite flotation in an agitated column cell" and have no information about this topic.
i read a paper with title "Fine pyrite flotation in an agitated column cell" and have no information about this topic.
4
REPLIES
1951
VIEWS
Started by dimanmarfi
hello good time Do you know, what is formulas or methodology is used for convert the data lab to plant scale? thanks
hello good time Do you know, what is formulas or methodology is used for convert the data lab to plant scale? thanks
Last replied to by Paul Morrow
dimanmarfi be sure to read: https://911metallurgist.com/C/Laboratory-Flotation-Testing-Procedure.pdf
dimanmarfi be sure to read: https://911metallurgist.com/C/Laboratory-Flotation-Testing-Procedure.pdf
3
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1651
VIEWS
Started by hani
hi all i want to know, what is optimize range of particle size in sphalerite - galena flotation? thanks alot
hi all i want to know, what is optimize range of particle size in sphalerite - galena flotation? thanks alot
Hi Thabiso, Can you please share more on Senkol. We switched over from AM810 to Senkol and have been struggling to have a stable froth and froth that gets to cover the entire cell