Quebec — HPQ Silicon said the United States Patent and Trademark Office issued U.S. Patent No. 11,267,714 entitled “Silica To High Purity Silicon Production Process” to HPQ Silicon Resources Inc on March 8 2022.
HPQ U.S. Patented PUREVAP™ QRR Process: The Key to our Develop & Monetize Strategy
The U.S. patent covers the PUREVAP™ Quart Reduction Reactor (QRR) innovative process, which permits the one-step transformation of quartz (SiO2) into high purity silicon metal (up to 4N+ Si), the material sought after by battery makers and high-value application manufacturers, at significantly reduced costs, energy input, and carbon footprint than traditional processes.
HPQ on Target to Start the PUREVAP™ QRR Pilot Plant
HPQ says its PUREVAP™ QRR technology has disruptive advantages that mean it can produce a higher purity silicon material than traditional processes in one step, and it does not require the extremely pure feedstock needed by conventional processes.
Adding that the process only requires 4.5 MT of raw material to make 1 MT of Silicon, versus the 6 MT required by conventional processes, a 25% reduction which potentially allows a 20% cash cost advantage versus the lowest cost traditional Silicon producer1.
“Since 2015, HPQ PUREVAP™ QRR has been at the forefront of disrupting Silicon manufacturing, an industry that still relies on a traditional process to make silicon first develop in 1899. The U.S. patent issuance on our novel new approach to making silicon, combined with the end of Q1 start of the GEN3 PUREVAP™ QRR pilot plant, have culminated at an opportune time, as demand for high purity silicon from the battery and high-performance material companies continues to rise just as bottlenecks, we had foreseen are now occurring in the silicon supply chain. With ESG principles playing an active role in materials sourcing, the world is more aware of the difficulties of securing the ESG compliant Silicon needed to meet its renewable energy goals. The reality of chronic underinvestment in new technologies combined with the offshoring of Silicon production capacity, has created a massive opportunity for HPQ and its PUREVAP™ QRR patented process, as we are the only company to bring to market a new process for making Silicon that is perfectly suited to the new demands and realities of the Silicon market,” said Mr. Bernard Tourillon, President and CEO of HPQ Silicon.