HPQ Silicon’s PUREVAP™ GEN3 QRR delivers even higher purity levels in a single step

HPQ Silicon, a technology company specializing in green engineering processes for silica and silicon material production, has provided shareholders with an update on the PUREVAP™ Gen3 Quartz Reduction Reactor (“Gen3 QRR”) project being developed in partnership with technology provider PyroGenesis Canada Inc.

The most recent results from our continuous testing have achieved the highest Silicon purity level recorded to date, reaching 99.96%. This milestone signifies the successful removal of an additional 400,000 parts per billion (PPB) of impurities compared to our previous record of 99.92% purity.

The achievement brings us one step closer to our goal, making the production of 4N Silicon in a single step not only feasible but within our grasp.

WITH EACH TEST: HPQ GEN3 QRR IS DELIVERING HIGHER PURITY LEVELS IN A SINGLE STEP

Silicon material produced during tests #6 was sent for ICP-MS Silicon Bulk Sample Analysis at Air Liquide Electronics (Balazs NanoAnalysis), and the results delivers a record 99.96% (3N+) Silicon Bulk Purity, outperforming test #5 results of 99.92%.

The key trend emanating from the Gen3 QRR testing to date and the silicon purity results are:

  1. Reproducibility of the one step production of Silicon that exceeds the highest purity threshold (2N) of commercially available silicon material, and
  2. Reproducibility of the one-step production of Battery Grade Silicon (3N+), the purity required for feedstock in the manufacturing of Silicon Base anode material, and
  3. Reproducibility of the production of silicon using 25% less feedstock than conventional carbothermic processes that use a ratio of 6 tonnes (t) of raw materials to produce 1 t of metallurgical grade silicon (MG Si – 98.5% to 99,5%)

“The reproducibility of the results obtained by Gen3 QRR is another demonstration of how HPQ PUREVAP™ QRR process is modernizing the production of high-purity Silicon, transforming a century-old industrial process known for its significant CO2 emissions into an efficient, scalable, and low carbon manufacturing process,” stated Bernard Tourillon, President & CEO of HPQ Silicon. “With Silicon now officially included in the US Department of Energy (DOE) 2023 Final Critical Materials List [2], the timing for the advancement of our PUREVAP™ project could not be better.”

Over the past year, HPQ’s three key initiatives – Silicon, Fumed Silica, and Autonomous Hydrogen Generation via Hydrolysis – have achieved significant milestones as we diligently executed our business plan.

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