Gary Frederick Chilman

HonFAusIMM

Gary was born in 1939 in Broken Hill. In 1956, while studying part-time for a Diploma of Metallurgy, he worked as a trainee metallurgist at the Zinc Corporation Limited (ZC), engaged in assaying and process problems for the Broken Hill ZC and New Broken Hill Consolidated Ltd (NBHC) concentrators. He was awarded the James Lyster Scholarship, achieving a Bachelor of Science in Chemical Engineering in 1964.

He returned to ZC as a research metallurgist with inputs to defining the flotation response surface for sphalerite, development of the Davcra flotation cell, monazite flotation and settled storage of underground sandfill. He progressed to Mill Metallurgist and then Mill Superintendent for the NBHC concentrator.

His subsequent position as Senior Planning Metallurgist required the formulation of production, staffing requirements and financial plans for the Broken Hill Mines Metallurgical Departments plus the specification, engineering liaison and commissioning of capital works. This included major concentrator expansions, flowsheet developments, the progressive installation of on stream analysis and computer control of milling operations, and the application of settled pipeline methods for slurry pumping.

In Broken Hill the creation of Pasminco Ltd resulted in Gary taking the position of Metallurgical Research and Development Superintendent. In this role he prepared site rehabilitation/environmental plans, designed tailings storage with under-drainage and provided hovercraft servicing and water recovery.

Gary relocated to Adelaide in 1989 and was employed by Australian Development Laboratories (AMDEL) as a Principal Metallurgist. In this role he was responsible for the design, quotation, conduct and reporting of mineral processing projects at laboratory and pilot plant scale.

The buy-out of AMDEL by Bureau Veritas integrated the research facilities into a world-wide organisation and Gary worked as a Consultant Metallurgist until his retirement in 2017. His notable achievements in this role included contributions to the development of the Dugald River Zn/Pb Operation for MMG, options for both magnesite and graphite for Archer Resources and the use of QEMSCAN mineralogy for the rapid assessment of flotation performance.

While in Adelaide, Gary was involved in the Advisory Committee for the Gartrell School of Mining, Metallurgy and Geology of the University of South Australia.


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