Green light for Greensteel

GFG Alliance’s mining arm, SIMEC Mining, has produced its first high quality decarbonised Greensteel steel pellets in Whyalla, South Australia.

The pellets were produced from the company’s Duchess South drill core in the Southern Middleback Ranges using innovative technologies proposed for SIMEC’s magnetite expansion operations.

As part of routine production, a small parcel of concentrate was successfully converted to pellets in the existing plant.

The successful production of the pellets is another significant step forward in GFG Alliance’s Greensteel project, and is coupled with the successful commissioning of a 400 tonnes per hour demonstration pilot plant to test the innovative technology integral to current and future mining operations.

Both milestones build on GFG’s announcement earlier this year of its magnetite expansion project and construction of a debottlenecking process to increase magnetite concentration production.

The process, known as Dry Low Intensity Magnetic Separation (DLIMS), is designed to reject non-magnetics from a coarse crushed fraction of the feed material, thereby upgrading the quality of feed to the magnetite concentrator.

Performance of the plant has exceeded expectations by rejecting over 20 per cent of the feed mass as waste, while still recovering more than 98 per cent of magnetics to product.

SIMEC’s magnetite expansion plan continues with a feasibility study underway for Stage 2, which is evaluating a new 5 million tonnes per annum magnetite concentrate supply chain to supplement the existing Stage 1, 2.5mtpa facility.

The life of the mine is estimated to be in excess of 20 years, with the mine producing 7.5mtpa of magnetite concentrate, and generating annualised revenue of more than $800 million over that time.

SIMEC Mining Magnetite Expansion and Growth general manager Gavin Hobart said the iron-ore operation in Whyalla iwa home to some of the highest purity and most desirable deposits of magnetite in the world.

“The high quality of our ore makes it a critical resource to enable Greensteel manufacturing and this successful pellet production is a significant milestone toward realising our plans,” he said.”

“Once operational, the project is expected to employ more than 1200 workers and support around 3500 people in the broader community.”



Editor of industrial titles and mastheads with Prime Creative Media. Publications include Rail Express and Australian Mining (web content).
Send this to a friend