Olympus Portable X-Ray Diffraction For Metallurgy

Mining operations use a combination of metallurgical processes for mineral extraction. This often involves flotation to produce a mineral concentrate followed by smelting or leaching to recover the final product(s). Knowing the quantitative mineralogy at each of these stages is important to optimizing the effective and efficient recovery of a valuable mineral deposit. Quantitative mineralogy enables more productive process strategies (e.g. blending) and ongoing process optimization. Metallurgists and geologists typically use chemical assay data to estimate quantitative mineralogy, but due to inherent mineralogical complexity, these estimates can be misleading. Olympus portable X-ray diffraction (pXRD) analyzers can provide the metallurgist with reliable quantitative mineralogy onsite, in near real-time, which would otherwise take days or weeks to obtain.

Flotation

Flotation is a common process used to concentrate a variety of base and precious metal ores. During flotation, the ore is treated with reagents

(chemicals) to encourage the valuable sulfide minerals to float and suppress the non- valuable minerals.

Leaching

Metals cannot be leached from all ore-bearing minerals, and ore minerals that can be leached have different leaching potential/leaching rates.

• Estimate recoverable metal

• Select the most approximate leaching method to optimize value.

• Understand acid consumption, a key cost

PYROMETALLURGY (SMELTING AND ROASTING)

The mineralogicalcomposition of concentrates has a large impact on subsequent pyrometallurgical processes that can involve smelting and or roasting the mineral concentrate product.

RAPID QUANTITATIVE MINERALOGY — A VALUABLE METALLURGICAL TOOL

Quantifying minerals that are problematic for metallurgical processes can be far more important than recognizing problematic minerals. These problematic gangue minerals often have minimal or manageable adverse effects at or below certain thresholds (or tipping points, Figure 3). For this reason, it is important for the metallurgist to have ready access to accurate quantitative mineralogical data (Figures 4 and 5) so they can optimize their process accordingly or develop more appropriate blending strategies.

Benefits Of Olympus Pxrd

The benefits of Olympus’ innovative pXRD analyzers include:

• Small sample: requires only 15 mg of material.

• Easy sample preparation: instrument operation and data acquisition do not require a skilled technician.

• Fast acquisition time: obtain results in few minutes.

• Portability: rugged design with no moving parts.

• No ongoing servicingrequirements: XRD can be performed regularly with minimal downtime and in remote locations.

Learn more: https://www.olympus- ims. com/en/applications/mineral ogy-for-metallurgy/

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