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Bond Abrasion Index VS Bond Work Index
Compare and Understand Rod/Ball/Impact-Crushing/Abrasion BOND Work Index Ref
Pyrite Depression in Copper Flotation
The Pyrite Depression in a Copper Only Flotation circuit is simple enough. If your froth flotation system only tries to recover chalcopyrite-copper, you need to bring the plant’s pH up to the other side (right side) of the PYRITE curve. The more flotation collector you have on, the higher you will need to increase that pH for effective pyrite depression. You
Arsenic Determination/Assaying
An assay method to measure arsenic using a MHS-10 and AA200 and Mercury Hydride System. Sample Preparation -Sample Weights to be used: Heads…………….. 0.3 g Cu Con……………..0.1 g Zn Con……………..0.2 g Knelson…………….0.3 g Core…………………0.1 g STANDARD MP-1a ……………0.1 g Cu Con Check Sample………..0.1 g Weigh the samples into 250 ml low form beakers. Add 10 mL Acid Mix (1:9 v/v CONC H2SO4:HNO3)
Sodium Borohydride Make-up
Sodium Borohydride Solution Make-up Weigh 5 g of Sodium Borohydride and 2.5 g of KOH into a glass funnel inserted into 250 mL volumetric flask. Add distilled water to rinse the Sodium Borohydride / KOH into the flask. (If you are making a 10 g batch, dissolve the reagents in a beaker prior to transferring to the 500 mL flask.).
Gravimetric Factors
The factors used to convert metal assays to mineral assays in this MVT Mississippi Valley Type Deposits review is summarized below. The conversion factors are based on standard metal to mineral gravimetric factors with some minor adjustments to compensate for the interstitial iron contained in the sphalerite lattice. The measured value for interstitial or submicroscopic iron in the sphalerite were
Stereological Corrections
In reflected light mineralogical studies involving opaque minerals, it is possible to section a composite particle so that the particle appears to be liberated. Clearly, a binary particle may be sectioned to appear liberated but a liberated particle cannot be sectioned to appear locked. The probability of this former occurrence depends upon the relative amounts of minerals and their structures
Mineralogy of MVT Mississippi Valley Type Deposits
Where are the VMT A Mississippi Valley Type Deposit or commonly called VMT offers some of the simplest, cleanest and “easiest” mineralogy and therefore metallurgy in the world. As shown in the image below, a near perfect liberation of all minerals at 100 microns grind. As seen below, Mississippi Valley Type Deposits liberate very well as coarse grinds. In the example P80
Estimated/Approximate Steel Liner Wear Life/Rate
A mill’ steel liner wear rate and total useful operating life is a function of its hardness (mostly). Here is a chart displaying Liner Hardness on the Brinell Scale as a function of the tonnage of ore/rock milled/processed. Not showed here is the impact a mill’s RPM has on the liner’s wear rate. Comminution and Energy Consumption: By National Research Council (U.S.). Committee
Estimated/Approximate Rubber Liner Wear Life/Rate Cost
In a Ball Mill (particularly) the wear rate or wear life of Rubber depends much on the Ball Size/Diameter used in that mill. The grinding media size which itself is much of a function of the ore/material P80 feed size into that mill. The other primary and addition factor contributing to a mill rubber liner wear is the RPM at
Flotation Column Cell Carrying Capacity & Scale-Up
Table of ContentsFroth TransportEffect of Hydrophobicity Flotation Column Cells can only ‘carry’ or recovery so much froth/concentrate for any given diameter. Unlike a mechanical cell on which you can just turn-on more air to recover more metal, column cells with not respond that way. A column cell can only carry so much froth to the concentrate launder. Their concentrate production
Gold Extraction from eScrap CPU Computer Chips
Electric gold melting furnace Portable Torch Cutting Welding Vacuum Filter Kit with Hand Pump Magnetic Stirrer pH and Thermometer Gas Mask Chemical Protective Clothing Glove Chemical Boots Chemical goggles Digital Scale 0.001 g Hot Plate Alcohol Lamp Spoon Glass Stir Sticks Distilled Water Bottles Glass Baster Filtering Flask Stainless Steel Beaker Polypropylene Buchner Funnel Filter Paper Glass Beakers Graphite Crucible
Black Sands Processing & Content Assaying
It appears none of the gold prospectors spend nor time or money on assaying their black sands for gold value determination. Instead, they use a rare earth magnet to tells them what is in there and see that most of the gold is magnetite with sometimes hematite. What little remains goes under the microscope where I see that it is
Pulp Density Solids to SG Convertor Calculator
Useful Buying Guide: Best calculators for engineers
D12 Laboratory Flotation Machine Drawings & Dimensions
D12 Laboratory Flotation Machine Drawings & Dimensions In case you need the specific sizes: depth, height, weight, width of you lab float cell.
Testing New Contact Form
Send 911Metallurgist a Message First Name* Last Name* Describe how I can Help* Email Address* Email Opt Out Phone
Double Beam Type Balance and Moisture Scales
BALANCE, Trip, Double-beam Type—Capacity, 5000 grams by 1/10 gram. The double beam makes it possible to weigh up to 110 grams without the use of weights. Above 110 grams, only weights of 100 grams and up are required, thus insuring speed and accuracy. The double beam is of great advantage when weighing material in containers, as no counterweights are needed. Because of superior fulcrum-construction,
Hydrocyclone Rubber Liners
We sell Rubber Liners for Hydrocyclone: You can buy parts like the main body liner, lower cone and Apex or Vortex. Long lasting, good wear and better price VS life relationship than a Linatex types Brand.
Copper Lead Concentrate Separation
Table of ContentsFlotation of Copper-Lead OreFlotation Copper-Zinc Ores The ways to obtain successful Separation of Copper and Lead into individual Concentrates, several process approaches can be examined; bulk copper-lead flotation with a reverse flotation stage depressing copper, the same bulk flotation with a reverse flotation to depress lead and a sequential copper-lead-zinc flotation circuit as well as a simple cleaning of the bulk Cu/Pb
Recommended Rod Mill Bar Length
Ever asked what size/length rods (bars) you need for charging your rod mill? It depends on the rod mill diameter itself. To prevent most conditions leading to rod charge tangling, the generally recommended relationship of rod length to mill diameter Inside liners is 1.4 to 1.6. When this ratio becomes less than 1.25 the risk of tangling Increases rapidly. For rod
Recommended Mill Operating Speed RPM
Here is a table of typically recommended ball mill speed or rod mill speed as a % of critical will operate at. In summary, the larger the mill, the slower you will want the RPM to be set at and the mill to turn. Ref
Example Locked Cycle Test Results
Locked cycle tests were conducted on each of the super composites, using the flowsheet shown below. The flowsheet consisted of a primary grind to a P80 of 150 µm, followed by rougher flotation at pH 9.5 to produce a bulk sulphide concentrate. The rougher concentrate was reground to a P80 of ~30 µm prior to three stages of cleaning at