Laboratory Testing & General Mineral Processing Engineering

Laboratory Testing & General Mineral Processing Engineering2017-04-04T06:57:51-04:00
  • To participate in the 911Metallurgist Forums, be sure to JOINLOGIN
  • Use Add New Topic to ask a New Question/Discussion about Mineral Processing or Laboratory Work.
  • 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.

1
REPLY
128
VIEWS
Started by kevind
I'm looking for help with processing ore containing gold, silver, and copper. I live in fairly remote location in Baja California on the Sea of Cortez, (an hour by boat from a small town with basics that is 6 hours from a city) and acquiring certain...
J
Last replied to by Jorge
I think you should consider a testing program to evaluate the metallurgical performance of the different materials you mentioned. Initially, try to evaluate separately the ore types, based on the resu...
1
REPLY
85
VIEWS
Started by lnldtt
Hi everyone, I'm looking for a metallurgical software to simulate a heap leaching operation, in order to forecast plant metal production. My first choice is Metsim but is there any other software that anyone could recommend for this specific applicat...
L
Last commented on by lnldtt
Thank you very much Todd!
1
REPLY
124
VIEWS
Started by nhngh
Hi everyone, I'm a newbie here. I don't know if I'm posting in the right place. Could anyone please tell me how to determine which beneficiation technique would be most suitable for beneficiating a Bauxite ore by using the physical parameters of Gib...
J
Last commented on by nhngh
So if I want to determine it based on theory, which parameter can I use? I did research and found only the density of Gibbsite.
1
REPLY
356
VIEWS
Started by Jayakumar
Hello All Can anyone help me, complete process flow of Ammonium Metatungstate (AMT).
Last replied to by David
Apparently not...
1
REPLY
419
VIEWS
Started by biggerthanpenny
Hi all, I know this is a long shot but does anyone have any information on how to source any of these software packages? The company that produced the software was Mineral Technologies International (http://www.mineraltech.com/MODSIM/index.html), I...
Last replied to by David
i use https://www.hsc-chemistry.com/
1
REPLY
341
VIEWS
Started by Mreza555
Hi I am working on a ARL8860 instrument and the main use is for copper industry. they use fire assay technique to analyze precious metals. is there an individual "Fire assay Module" for this instrument? or it can be done just by calibrations? Thank...
M
Last commented on by Mreza555
I meant they want to analyse lead buttons extracted from fire assay crucibles. and ARL has another OES instrument (fire assay analyzer) designed for this purpose. I wanted to know whether there is a s...
1
REPLY
376
VIEWS
Started by MSKabir
During rotation of a SAG mill, the three prominent zones are the grinding zone, tumbling or cascading zone and the cataracting zone (crushing zone). Are there any studies about the percentage of wear in the areas mentioned and what type of wear domin...
T
Last replied to by Todd H
This is not a straight forward question as it depends on a lot of variables.  Liner designs are meant to keep the wear even so that you are replacing liners that are evenly worn.  You dont want to p...
2
REPLIES
311
VIEWS
Started by richardh
Hi I need assistance in calculating the end velocity of a 278.45 m3/h slurry of 1.6 SG density down a 45 degree rubber lined steel pipe of 480mm inner diameter. The fluid enters the pipe at near zero velocity. The vertical drop is 6.8m and pipe leng...
T
Last replied to by Todd H
Also this link: https://www.engineeringtoolbox.com/mannings-formula-gravity-flow-d_800.html
1
REPLY
219
VIEWS
Started by Angela
Our lab guy has asked about different types of rhodanine: apparently he found cheap stuff and expensive stuff. I thought that there was only one, but I never had to prepare it, myself. An EPA procedure (https://www.epa.gov/sites/production/files/20...
J
Last replied to by Jorge
It is correct, to determine free cyanide using silver nitrate titration, you can use rhodanine, It is common to use acetone to prepare the solution. Also, you can use potassium iodide. Both solutions ...
1
REPLY
380
VIEWS
Started by Millza79
Wasn't sure where to put this.   What exactly are "marketing costs" when it comes to sending concentrates to smelters? Are they TCs/RCs or something else?
Last replied to by SmartDog
In smelting concentrates a very common way is to sell them to the smelter, thus realizing the value at that point.  As in selling anything some expenses are incurred in locating a smelter and negotia...
2
REPLIES
445
VIEWS
Started by spoch
Hi, We operate a tin mining operation in central Nigeria that is an alluvial deposit. The ore sand comes with a lot of boulders. Initially we were using a grizzly but this has led to a lot of plant idle time getting because of the time it takes to p...
I
Last commented on by spoch
Thank you. Had a look at your website. Can you give me an idea how much a multi gravity separator tat can handle 10TPH costs
0
REPLIES
400
VIEWS
Started by fhb58
I am trying to find out the maximum melt line height which can be safely maintained in a rectangular reverberatory furnace fired on furnace oil. The furnace in question is having 10 tons holding capacity. Is there any relationship of tis factor with ...
1
REPLY
728
VIEWS
Started by rockape888
Hi, I am evaluating test work completed on a circuit where gravity tails are put through a float circuit. i.e. concentration of the rougher feed. Gravity circuit is likely a Knelson concentrator. Is it possible to scale up this type of circuit to 5 ...
Last replied to by Gene Cheeseman
Hi Rockape, 5Mtpa is approximately 600 tph.  The largest Falcon or Knelson concentrators top out at around 400 tph.  If more capacity is needed multiple units are used in parallel - some plants hav...
0
REPLIES
446
VIEWS
Started by MattN
I'm researching gold tracking and tracing techniques to verify origins of gold. I'd like to find out about what the current state of the art, and future techniques that are under development. I'm most interested in understanding the precision of the ...
1
REPLY
560
VIEWS
Started by Mreza555
Hello everyone  there is a Leco CS230 instrument with a high sulfur detector. is it possible to have an extra low sulfur detector simultaneously ? or should we change the detector for low sulfur analysis ? Thanks
M
Last commented on by Mreza555
Dear Todd First, thanks a lot for minding the issue. our IR cell is a high sulfur and for the concentrations less than 0.01 %wt it has errors. my question was about the possibility of having another s...
0
REPLIES
466
VIEWS
Started by PNeil92
Hello everyone, I'm working in a multi-mineralic evaporite orebody for which a suitable CRM is not available. I have been trying to create  in house standards / MMCRMs over a few grade ranges (at cut off grade , averge of deposit and high grade) bu...
2
REPLIES
441
VIEWS
Started by Millza79
How much mass do you need for a bond rod mill test?   And can the daughter products be used in bond ball mill tests?
Last replied to by Millza79
Thankyou
0
REPLIES
393
VIEWS
Started by sajjadaghazadeh
Hello Everyone; I hope you are doing great. I really need your help and hope mine guys could help me. The fact is that we have faced a very low liberation degree in our iron processing plant. The iron concentration takes place by using primay and s...
0
REPLIES
344
VIEWS
Started by metalshaper
Hello everyone,  I know this question doesn't really fit anywhere on this site but I am in need of some help with zinc sheet metal.   I am a metalshaper and have been asked by a customer to build a gas tank out of zinc sheet.  The sheets are .04...
1
REPLY
421
VIEWS
Started by Henryezra
Hi all, just a quick one. Say your operation had hypersaline process water with an SG of 1.1. When calibrating the Marcy scale for %solids determination, do you use fresh water with an sg close to 1, or the process water used during milling? Thanks....
Last replied to by SmartDog
Fresh water at its densest (at 4 °C or 39.2 °F) alternatively at room temperature (20 °C or 68 °F). Nonetheless, the temperature and pressure must be specified for both the sample and the referenc...
3
REPLIES
819
VIEWS
Started by Yvette314
Good day - I want to determine the sample size needed for a run-of-mine. I want to determine the sample mass needed by particle size. I've created a tool determining the variance between the size fractions for the RoM PSD, and then based on that, and...
Y
Last replied to by Yvette314
Thank you!
0
REPLIES
391
VIEWS
Started by Mreza555
After few sample runs, the combustion tube breaks during analysis! I've done leak check, cleaned filters and greased O-rings but it didn't help. could you please tell me possible reason(s)?
1
REPLY
436
VIEWS
Started by fkasis
I need a method to determine the slag content of a jig product that consists of high carbon ferrochrome alloy and slag.
F
Last commented on by fkasis
Thank you but what Im looking for is the step by step process for the assay e.g what chemicals to use
1
REPLY
395
VIEWS
Started by Tende
Good day,I am a PhD student, doing my research in Froth Flotation. I am currently polishing my flotation skills (batch flotation cell) for my project. One thing I am battling with is to maintain the froth height constant, especially when it comes to ...
J
Last replied to by Jorge
You have two options, the first one is to use an acrylic tank cell to see the slurry level and froth height. In this way to can add water to maintain an appropriate slurry level. The second option is ...
0
REPLIES
566
VIEWS
Started by mardin
Hi Dear What is the best designing for Lead processing if the feed grade is about 7 percent ( Galena) and concentrate grade is 40 percent?
2
REPLIES
572
VIEWS
Started by FarshidBsr
I am working with a project involving a bentonite powder for pelletizing plant. 0-50 mm bentonite is dried in dryer, and milled with ring roller mills to produce a bentonite powder with P80=45 um. The bentonite water absorption drops from 449% to 323...
J
Last replied to by Jorge
Try to get a detailed particle size distribution from the roller mill and the lab pulverizer. The production of fine particles could be different. 
0
REPLIES
602
VIEWS
Started by kalpesh
What is process  followed for making bleaching clay from bentonite. which machines are required ?
2
REPLIES
567
VIEWS
Started by Henley Munn
G'day does anyone have a test procedure they'd be wiling to share for intermittent bottle roll tests to model heap leach recovery performance? Thanks
J
Last replied to by Jorge
If you want to perform a bottle roll test using coarse particles, you can follow the standard procedure. Initially, it is common to take PLS samples the first 12 hours. after that, you can increase th...
2
REPLIES
464
VIEWS
Started by ALanyon
G'day, I've been doing some sizings from our pulverizers to attempt to find why we're getting high variation in our lab results. 2 of our pulverizers are over pulverizing creating quite hard lumps. My concern is that this may be affecting our sulp...
S
Last replied to by SURENDER PAL
There is production loss of Calcium molybdate in our plant .Please Help us
1
REPLY
386
VIEWS
Started by Fatemeh
We produce steel casting liners for SAG/Ball mills. One client in Iron ore mine is using rod mill in first stage grinding. The shell liners are rolled steel and work for 7 months. Now they want to switch to cast liners and ask for a proper material i...
Last replied to by David
Well typically a SAG Mill liner is in Chrome Moly Steel (Brinell Hardness 301-402) and Rod Mill liner would be in High Chrome Iron (590-750 Brinell). https://tinyurl.com/y7wdgf3b https://tinyurl.com...
0
REPLIES
420
VIEWS
Started by Math Nope
Hello, I need to know how to process tin ore containing stannite (Cu2FeSnS4) mineral. If you have some process flow diagram or something else will be appreciate. Thank you.
0
REPLIES
444
VIEWS
Started by christian2020
Please gentlmen,best Metal detector(s) to distinguish & remove silver scrap from poor mix silver gold ore screened ?
1
REPLY
465
VIEWS
Started by arsi315
I have 2 different steel material and got them both tested and following are the results. However I am not sure which steel is better from both of the comparison. If anyone can help me out to identify it, I will really appreciate it.Sorry for the bad...
M
Last replied to by BAUD
Hi, Please, can you tell us what you want to do with these steels. The application of the material will guide you to choose which properties you should focus on. It is good to have the chemical compo...
3
REPLIES
649
VIEWS
Started by MAP
How we could test a bentonite ore(clay) to determine if it is good for production of acid activated bleaching earth?
Last replied to by raghdmuhi
dear Mr. Pazokian Try read the attached file for big beatification, dont hesitate for any information you want best regards
3
REPLIES
612
VIEWS
Started by markoramiusiii
Are there any settling test procedure specific for flotation concentrate pulp? I am currently testing optimal floc dosage of column flot concentrate, fed to a concentrate thickener and encountered problems such as frothy samples which makes it harder...
T
Last replied to by Todd H
Concentrate should settle relatively easily if you are using the right reagents.  Froth is certainly an issue with conc but it should not impact your settling tests, in terms of interface determina...

Please join and login to participate and leave a comment.

BUY Laboratory & Small Plant Process Equipment

We have all the laboratory and plant equipment you need to test or build/operate your plant.

ENTER our Mining Equipment' Store

We Sell EQUIPMENT for all types of Mineral Treatment PROCESSES and Laboratory Testing needs

Do you need METALLURGICAL TESTING of your ORE?

View the Services we Provide

911Metallurgist Mineral Processing & Process Development Laboratory

We have a metallurgical test for every possible mineral type and treatment.

Need ENGINEERING Services or Plant TROUBLESHOOTING?

We can IMPROVE ALL PLANTS / Mineral Processing Engineering & LABORATORY Ore Testing

911Metallurgy Engineering

Contact us for process engineering, metallurgical investigations, plant optimization, plant troubleshooting, needs. WE “FIX” METALLURGY.

I Need Consulting Engineering Help
I Need Ore Laboratory Testing