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Saskatchewan Research Council (SRC) and CIM Magazine have collaborated to bring you the Diamond Webinar Series. Through it, SRC will share key learnings from their research and experience in diamond processing, as well as mineral processing and analysis, to assist mining companies achieve greater efficiencies in their operations. They will also discuss what technologies are needed to better recover the various diamond populations.

The next webinar in the Diamond Series will be held December 11, at 12 p.m. EST.

Using Diamond Typing to Improve Recovery Techniques

Diamonds possess unique properties that can be exploited when developing a flow sheet for diamond recovery. For example, diamond luminescence describes the glow a diamond can produce when its atoms are excited by a high-voltage energy source, such as x-rays. The luminescence is detected by a photomultiplier tube that can activate an ejection mechanism to remove the luminescent diamond from the stream of other non-luminescent minerals. The luminescence intensity in the diamond does have some correlation to the diamond type.

Variable concentrations and arrangements (aggregation states) of nitrogen atoms within the carbon crystal lattice (Type I diamonds) can influence the intensity, and thereby recoverability, of a diamond using x-ray luminescence (XRL). Type II diamonds contain no detectable nitrogen and often exhibit weak to no luminescence making them more difficult to recover reliably with XRL. Scavenging technologies such as laser-raman and grease table are then introduced as an additional process to ensure the recovery of low-luminescent stones. This can make recovery flow sheets more complex and difficult to maintain. Knowing more about the population of the diamond parcels prior to designing a recovery circuit can aid in sourcing the appropriate equipment.

In this webinar, Lucy Hunt and Mike McCubbing from SRC’s Applied Diamond Services team will explain the various diamond types and how they are identified, as well as the properties they exhibit as it relates to processing and recovery. They will also discuss how new technologies, such as X-ray transmission (XRT), can improve the efficiency of diamond recovery. 


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What is the Diamond Webinar Series?

In this series of four webinars, SRC’s experts will share valuable insights on the following topics:

1. Why Plant Recovery Audits Improve Performance Did you miss this webinar? Watch the video of the first in the series.

For more information, check out Jane Danoczi and Suzanne Johnston's blog post on plant audits.

2. Finding Your Next "Big One" Intact: Understanding and mitigating diamond breakage. Watch the video of the second in the series.

3. Magnetic Susceptibility Assessments. Watch the video of the third in the series.

4. Diamond Typing, Luminescence and Optical Sorting (December 11). Register now.

Who is this webinar series for? 

Geologists, consultants, mine supervisors/managers, plant design consultants and engineers, and process and environmental engineers who work for mining companies or who are interested in learning about operational improvements.

What are the learning objectives for the webinar series?

Educate: Help companies learn to find process efficiencies so they can improve yields and increase profitability

Identify: Provide solutions to potential issues mine operators might face

 About SRC

The Saskatchewan Research Council (SRC) is one of Canada’s leading providers of research and development and technology commercialization. SRC’s Mining and Energy team provides services that meet industry needs across the mining cycle for a wide range of commodities, including diamonds, uranium, potash, lithium, base metals, precious metals and rare earth elements. We provide technological solutions and testing, from exploration and design/feasibility to operations and closure. 

Learn more about SRC Mining and Energy