I didn’t have high expectations for Peter answering the PUREVAP question in the Q&A, but his grin and “we won’t talk about that” comment when Aluminum was mentioned was telling enough :D . Really excited about PUREVAP’s potential future applications. The PUREVAP Silicon potential is already massive, both nano-sized (NSiR) and regular PUREVAP high-grade silicon, and it’s only one of many potential avenues that PYR can explore with this technology. Peter said it himself in this news release from several years back:

https://www.pyrogenesis.com/wp-content/uploads/2018/10/PR-PYROGENESIS-ANNOUNCES-PUREVAP%E2%84%A2-PROCESS-BREAKTHROUGH.pdf

“PyroGenesis’ PUREVAPTM is a disruptive process that has the ability to revolutionize the way the mining & metallurgy industry produces metals,” said P. Peter Pascali, President and CEO of PyroGenesis. “PyroGenesis has once again demonstrated its ability to use plasma as a solution in industries that have not yet had the luxury to consider its many benefits.

For example, the PUREVAP can probably produce high purity 99.99%+ Aluminum from low quality, cheap Alumina (~ $0.33/kg) at a cost that is cheaper than producing standard purity Aluminum. The oxide (O3) in the Alumina would be removed during the PUREVAP process, as are the impurities which are vaporized.

I don’t see High Purity Alumina (HPA) being used as a substitute for Silicon. Altech was targeting HPA as a Lithium battery separator coating material, not an Anode material.