JKMRC Friday Seminar 2026: Metallurgical Testwork to Engineering Design in Copper & Gold Processing

JKMRC Friday Seminar 2026: Metallurgical Testwork to Engineering Design in Copper & Gold Processing

🎙 Doug Price 👥 6K 📅 September 15, 2026 ⏱ 64 min 👁 18 📄 expert opinion 🧭 2026-09-15
Available in: English (current) Français

Keywords

samplingvariabilityflotationcommuntionthickening

Summary

The seminar, presented by Doug Price of Ausenco, addresses the critical chain from metallurgical sampling and testwork to engineering design in copper and gold processing. Price emphasizes that representative sampling and geometallurgical characterization are foundational, but typical pitfalls such as using a single master composite or ignoring dilution can lead to plant design failures. He illustrates these issues with operational examples from Nifty Copper Mine, where variable ore types and unintended shale dilution caused significant processing problems. The talk then covers testwork stages: liberation (comminution tests), separation (flotation kinetics and lock cycle tests), and disposal (thickening and filtration). Practical advice includes considering water chemistry, understanding mesology (including non-sulfide gangue), and designing for the actual operational envelope rather than average ore. The importance of blending and its constraints is also discussed. Price concludes by stressing that context—such as petrology reports—helps metallurgists interpret testwork and avoid common design errors.

147 words

Critical Evaluation

Value of the Information & Strength of the Argument

The primary value of this talk lies in its practical, experience-based guidance bridging laboratory testwork and real-world plant design. Price argues convincingly that a master composite misrepresents feed variability and leads to operational surprises. His examples from Nifty illustrate concrete failures caused by segregated ore types and unintended dilution, supported by clear cause-and-effect reasoning. The argumentation is coherent and logically structured, though it relies on anecdotal evidence rather than systematic data or peer-reviewed references. The speaker demonstrates a solid command of mineral processing principles, and his advice to consider the entire geometallurgical context—including petrology and mining sequence—is well-founded. However, the lack of quantitative case studies or bench-scale data weakens the empirical rigor.

Scientific Rigor, Source Quality, Title Accuracy

The scientific rigor is moderate: the presentation is based on the speaker’s twenty-plus years of experience, but no formal citations or external sources are provided, aside from the hosting institution’s webinar page. The title accurately reflects the content, which is structured along the metallurgical testwork–to–design pathway. The speaker openly acknowledges the breadth-over-depth nature of the talk, and the content is more anecdotal than systematic. No comments or discussion threads were available for analysis; therefore no public reception data are included.

207 words

Title / Content Match

The title accurately reflects the seminar's content, which follows the progression from metallurgical sample collection and testwork to process plant design, with specific examples from copper and gold operations.

Quality & Reliability

8/10

The presenter is a professional process engineer with over 20 years of operational and design experience, providing practical and actionable insights. However, the talk relies on anecdotal experience rather than formal citations, and no external references are provided beyond a university webinar page.

Key Moments

Cited Sources

  • SMI webinars — Description of the video links to past webinars hosted by the Sustainable Minerals Institute, which is the institutional context for the seminar.

Contribution & Novelties

The talk adds value by explicitly linking metallurgical testwork to engineering design with practical pitfalls drawn from field experience. It emphasizes the need for variability sampling over master composites and highlights often-overlooked factors such as dilution, water chemistry, and non-sulfide gangue. The speaker’s perspective as a design engineer who has also operated plants gives unique insight into common disconnects between testwork and operational reality.

Pour aller plus loin :

  • Geometallurgy — Overview of the discipline linking geology to metallurgical response, directly relevant to the talk’s sampling and characterization focus.
  • Froth flotation — Core separation technology discussed in the seminar; basics of flotation chemistry and kinetics.
  • Lock cycle test — (Note: This article may not exist on Wikipedia; if uncertain, omit URL.) Description of the lock cycle testing procedure for flotation circuits.

131 words

Radar Profile

The radar profile shows strong quantitative information content and technical level, while source reliability is slightly lower due to the lack of formal citations. The overall balance indicates a practically oriented, experience-driven presentation valuable for professionals but not a systematically referenced scientific review.

Reliability 7/10