Tag Archives: fire assay

Eriez reinforces flotation testing capabilities with new fire assay lab

Comminution of minerals, Metallurgy, Mining equipment, Mining services, Precious metals, , , , , , , , , , ,

Eriez® says it has recently completed the construction and commissioning of a new state-of-the-art fire assay laboratory to support flotation testing at its world headquarters in Erie, Pennsylvania, USA.

This new facility includes all required equipment for fusion, cupellation, parting, weighing and assaying, as well as innovative systems to enhance worker safety and environmental compliance, it said.

Erich Dohm, Eriez Flotation Senior Manager-USA Operations, said the addition of fire assay capabilities further establishes the comapny’s  position as an innovative global partner in minerals processing and flotation.

“This investment was made as part of our commitment to enhancing support for our precious metals flotation customers in addition to existing capabilities for base metals and industrial minerals projects,” he said. “Our customers will see a tremendous benefit in the development of new precious metal projects incorporating our advanced flotation technologies, such as the HydroFloat® and StackCell®.”

According to Eriez, the new fire assay laboratory will enable full execution of all aspects of precious metals flotation projects, with next-day assays available to guide flotation investigations.

Dohm says: “This will allow our team of flotation experts to complete projects under a tight deadline without risking delays from external commercial laboratories.”

Eriez’s in-house analytical capabilities also include X-ray Fluorescence, inductively coupled plasma, atomic absorption, combustion furnace (sulphur), and particle size by laser diffraction.

Dohm concluded: “Our full-service metallurgical and analytical laboratory facilitates strong customer partnerships, from initial flowsheet development at prefeasibility stages through troubleshooting and optimisation of existing mill circuits.”

Chrysos Corp’s PhotonAssay tech hits major milestone

Automation, Environmental, Mineral exploration, Mining equipment, Mining services, Precious metals, , , , , , , , , , , , , , , , ,

Chrysos Corp has announced that its ground-breaking PhotonAssay technology has now assayed over one million customer samples.

The milestone comes amid accelerating demand for the technology, which has seen the number of samples analysed more than triple in the last six months, the Australia-based company said.

Driven in part by increasing industry focus on safety, sustainability, and sample turnaround time, Chrysos PhotonAssay is competing with the centuries-old fire assay process in the gold assaying market. Chrysos says the technology, which originated out of a CSIRO project, is fast taking over fire assay to be the preferred technology of miners and laboratories seeking a solution to the supply chain and environmental challenges created by traditional gold assaying methods.

Chrysos CEO, Dirk Treasure, explained, “Demand for PhotonAssay has grown over the last year and further accelerated in the last six months as more miners and laboratories have reached the conclusion, through their own due diligence, that PhotonAssay not just meets and exceeds their accuracy and cost requirements, but also overcomes the speed, safety, and environmental challenges inherent in fire assay.”

Recently, Chrysos and Intertek declared a deal to install two PhotonAssay units at Intertek’s new Minerals Global Centre of Excellence in Perth, Western Australia. Chrysos also announced a partnership with MSALABS, a subsidiary of Capital Ltd, to deploy at least six PhotonAssay units across the globe over an 18-month period. Prior to that, the company signed a deal enabling Kirkland Lake Gold to use PhotonAssay for its Fosterville Mine in Bendigo, Victoria.

Hitting samples with high-energy X-rays, PhotonAssay causes excitation of atomic nuclei allowing enhanced analysis of gold, silver and complementary elements in as little as two minutes, Chrysos claims. Importantly, the non-destructive process allows large samples of up to 500 g to be measured and provides a “true” bulk reading independent of the chemical or physical form of the sample.

“The significance of the technology’s ability to analyse large sample sizes is underlined by Novo Resources’ recent announcement that it has signed a multi-year deal for priority access to the two new PhotonAssay units being installed at Intertek’s Centre of Excellence,” Chrysos said. “In finalising the agreement, Novo signalled its belief that PhotonAssay is the ideal technique for analysing the nuggety gold mineralisation at its Beatons Creek operation in Western Australia.”

Dr James Tickner, Chrysos Corp Co-founder and Chief Technology Officer, agreed: “Accurate assaying for coarse gold has always been a challenge, and it’s on difficult deposits where the much larger sample mass of PhotonAssay really delivers. It’s great to see industry recognising this, with Novo Resources committing to run at least 20,000 samples per month through each unit at Intertek’s brand-new facility in Perth. The two PhotonAssay units we’ve just commissioned there will really help Intertek deliver faster, cleaner and more accurate results, not just for Novo, but its other customers as well.”

Another factor driving fast adoption of the technology is Chrysos’ commercial and operating model whereby the company leases, rather than sells, its PhotonAssay units to customers, the company says. This approach not only minimises expenditure by relieving the customer of capital expenditure charges and any service, delivery and maintenance fees, but also reduces ongoing staffing, training and related occupational health, safety and environmental costs.

In return, the leasing model facilitates a recurring revenue stream for Chrysos, which the company has used for research and development and the overall broadening of applicability and accessibility of PhotonAssay for wet samples and other metals such as silver and copper, it says.

Reviewing recent successes and foreshadowing upcoming events, Treasure summarised, “Even with more than A$80 million ($62 million) in contracted revenue and 14 PhotonAssay units either in-use or committed, we remain focused on executing our smart, sustainable growth plans. Market feedback indicates that our disruptive technology is helping customers achieve faster, safer and cleaner business outcomes ‒ and that is the type of value creation Chrysos finds compelling.

“Ultimately, we want our customers, shareholders and community stakeholders to feel as much pride using and engaging with PhotonAssay, as we do when we create and deliver it across the globe.”