The Integrity of Continuous Miner and Personal Dust Samples
Coaltech | July 2021
R1500,00
Description
This project describes an extensive programme of ‘shadowing’ and monitoring of continuous miner and personal dust samples in production sections of an underground colliery over a three month period. One third of all respirable dust samples, both continuous miner and personal samples, have been shown to be unreliable. The main causes of unreliable samples were in the preparation, issuing, receiving, and wearing of dust pumps.
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Recovery of Rare Earth Elements by J Nkuna.pdf
Flotation, calcination and leaching tests on run of mine and discard coal, with mineralogy of the rare earth bearing grains. For processing researchers and waste stream owners.
What this report foundRun of mine and discard coal carried total rare earth contents of 260 and 265 ppm, above the 130 ppm cut off grade used for coal.
R1500,00
Run of mine and discard coal carried total rare earth contents of 260 and 265 ppm, above the 130 ppm cut off grade used for coal. Flotation with an emulsion binder did not raise those concentrations in either the product or the tailings streams. Calcination did, lifting totals to between 285 and 289 ppm, with most rare earths leaching within the first fifteen minutes.