Look inside an IsaMill and have a look at an installed IsaMill grinding unit. IsaMill Signature Plot

Ultrafine Grinding Test Report AKA IsaMill Signature Plot


Here is an energy plot AKA an IsaMill Signature Plot AKA a Ultrafine Grinding Test Report.  This test is performed using a Netzsch Grinding lab mill. I also include links to great articles about this powerful ultra-fine grinding technology. 1) IsaMill- 1:1 Direct Scaleup from Ultrafine to Coarse Grinding 2) The Benefits of IsaMill Testing 3) Industry/Research Papers from … Read more

How to Interpret Particle Size Distribution Data

D50 interpret particle size distribution data

For a great presentation on How to Interpret Particle Size Distribution Data D50 D80 D90 and D10 you need to see by Malvern.

Optimum Froth Bed Depth Levels

froth bed level

When the pulp levels on all cells appears high (shallow froth bed thicknesses or depth).  This causes unstable froth which constantly produces a low density “run-away” or wet, watery un-drained rougher concentrate rich in mechanically floated (entrained) “other materials” and containing most of the frother (added to flotation feed) itself.  ** Operating at shallow froth … Read more

Compare Hydroxamate AM2 Rinkalore CTC3 Oxide Collectors

In this series of tests aimed  to Compare Hydroxamate Collectors namely: AM2 Rinkalore and CTC3 we now conclude.  All data indicate the CTC3 is a more selective reagent.  In all tests, metallurgy was improved.  Nowhere were the results produced by CTC3 inferior to AM2. Although AM2’s Lab Recoveries can look “attractive”, the AM2 reagent shows problematic … Read more

Pb Oxide Floatability & Selectivity VS Sulphidizer Usage

The use of a sulphidizer is common in oxide flotation recovery. Na2S (Sodium Sulfide) can help “activate” oxide minerals behave as sulfides. The tests performed by both vendors showed noticeable technical differences between both reagents. AM2 constantly requires the use of Na2S as its copper activator while CTC3 does not rely on Na2S. This dependence … Read more

Naturally Floating Gold and Silver Lost in Pre-Flotation

Naturally Floating Gold and Silver

It is clear the Pre-Float stage creates much looses in Cu, Au and Ag.   Mineralogy work on this stream would help understand why the metals are naturally floatable using only MIBC.  Knowing the cause of this floatability (chemical, physical or mechanical) would open the opportunity to implement solutions that would increase Cu, Au and Ag … Read more

Oxide Flotation Collector | Collector for Copper Oxide Ore

Oxide Flotation

In this flotation tests and evaluation for the best collector for copper oxide “ore” 911Metallurgy continues with material that’s 60% Oxide copper. Sample C: 1.7% Copper about 60% Oxide Cu  Rougher Tests: Both reagents appear to behave similarly as the “blue dots” are seemingly a continuation of the trend started by “red dots”. Oxflo and Axis … Read more