- Abundances of iron (and other transition element) oxides and hydroxides
- Rare Earth Element (REE) minerals
- Acid consumption
- Total swelling clays
- Comprehensive clay mineralogy
- Micas, chlorites and serpentine
- Talc, pyrophyllite, and amphiboles
- Carbonates
- Sulfates
- Hardness
- Particle size
Sabtu, 04 Oktober 2014
NIR
10.32
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For the optimum practice of
extractive metallurgy, accurate and rapid characterization of ore is critical
for mine planning and ore processing. Definitive information from mineralogical
and metallurgical analysis is essential for operators to develop and maintain
pit geologic maps, dig plans, block models and to make informed ore processing
decisions all within the tight economic parameters of today’s world.
ASD’s TerraSpec® near-infrared (NIR)
spectroscopic instrumentation in extractive metallurgy speed metallurgical and
mineralogical analysis, much more rapidly than conventional laboratory-based
methods. With a long successful track record within the mining sector, NIR is
used for identification and quantitative analysis of the complex mineral
assemblages present in various ores. ASD’s advanced NIR technology measures
samples in real-time, allowing accurate analysis of hundreds of samples per
day.
NIR is especially useful for
determination of clays and other phyllosilicate minerals allowing for immediate
adjustments to changing conditions. These include physical properties that can
either help or hinder the metal recovery process during mineral processing and
heap leach operations. Data from NIR analysis can help when evaluating critical
parameters associated with mineral processing and heap leach operations such as
comminution, concentration, permeability, reagent usage including acid
consumption, and moisture addition resulting in an improved metal recovery
while reducing processing time, lowering energy use and costs.
ASD’s NIR analyzers allow operators
to measure key parameters like those below in a rapid, cost-effective manner
that doesn’t interfere with production.
ASD’s systems provide multiple
configurations, including field-portable, bench top and online options,
allowing for streamlined analyses at any number of sites and facilities.
Whether in the lab, on the conveyor belt, in the heap leach pile or on the
excavation wall, ASD has a proven track record to meet the NIR needs of
extraction metallurgy.
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