QRR news release It is indeed brilliant to start right away with high purity feedstock to confirm right at the beginning how high of a purity you can deliver silicon, while using the same input (high purity quartz) as the current producers.
Then, you move to lower quartz quality (ref.: Nov. 2016 press release -
PYROGENESIS ANNOUNCES THAT PUREVAP™ NOW SUCCESSFULLY PRODUCES 4N+ (+99.99%) SILICON METAL FROM LOW PURITY QUARTZ) and demonstrate that you can beat competition on all fronts.
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RE:RE:HPQ NEWS!!!!!!!!!!!! Please read again, Purevap QRR does not require high purity feedstock, unlike other manufacturers.
quote:
«This game changing advantage means that the PUREVAP TM QRR process not only produces a higher purity silicon material than traditional processes, but it does not require the extremely pure feedstock needed by conventional processes. »
It is wise to go for high purity feedstock during the commisioning process and find out what the xN is. We could have a fabulous surprise and be back in the Solar panel again.
GLTA and happy Xmas