MONTREAL, Feb. 26, 2019 (GLOBE NEWSWIRE) -- HPQ Silicon Resources Inc. (HPQ) (TSX
VENTURE:HPQ) (FRANKFURT:UGE) (OTC PINK:URAGF) is pleased to announce the receipt of a progress report from PyroGenesis Canada Inc
(“PyroGenesis”) (TSX Venture: PYR) describing the latest significant milestones reached during Gen2 testing of the PUREVAP™
Quartz Reduction Reactor (“QRR”). Key takeaways from the report are summarized bellow.
GEN2 PUREVAP™ TESTS SUCCESSFULLY CONFIRMS THE SCALABILITY OF
PUREVAP™ QRR PROCESS
2018 Gen2 PUREVAP™ Commercial Scalability Proof of Concept tests confirmed the
PUREVAP™ QRR could operate under a semi-continuous mode (January 15, 2018 release). Next, additional process
improvements and design modifications to Gen 2 were tested, and demonstrated that semi-continuous operation improves the
PUREVAP™ QRR Production Yield1. Scaling up from Gen1 to Gen2 in semi-continuous
mode, production yield increased from ~ 1% to 34% (February 15 and April 19, 2018 releases).
99.83% TOTAL IMPURITY REMOVAL EFFICIENCY REACHED DURING GEN2
PUREVAP™ TESTING
While mostly focussed on testing components and processes for the final design of Gen3 PUREVAP™, the
Gen2 testing also demonstrated that production yield is crucial to the final purity of the Silicon Metal (Si) produced by
the PUREVAP™.
A Gen2 PUREVAP™ test provided 17.9% production yield and 99.83% total
impurity removal efficiency2 compared to a Gen1 test under similar operating conditions, that provided 3% production
yield and 97.14 % total impurity removal efficiency. PyroGenesis3 was able to validate that production yield does
play an important role in the impurity removal efficiency of the process and final purity of Si.
Mr. Bernard Tourillon, President and CEO of HPQ Silicon Resources Inc stated: “The one step impurities
removal capacity of the PUREVAP™ QRR and its direct impact on the final purity of the PUREVAP™ Si is the key milestone that
will allow HPQ, working with PyroGenesis and Apollon Solar, to develop a low cost and green metallurgical process to produce Solar
Grade Silicon Metal (SoG-Si). The fact that, as expected, Gen2 testing replicated and improved Gen1 results is a major
milestone that bodes well for the future as we get ready to start, mid-2019, the Gen3 commercial scalability testing phase, aimed
at demonstrating the PUREVAP™ QRR commercial potential.”
HPQ PUREVAP™ PATHWAYS TO PRODUCE SOLAR GRADE SILICON METAL PASSES MAJOR MILESTONE
Using data from both Gen1 and Gen2 tests, PyroGenesis repeated the 2017 extrapolation exercise and concluded
that, even using low purity feedstock (98.84% SiO2), the carbothermic part of the PUREVAP™ QRR process
should allow HPQ to reach the 4N+ Si (99.99+% Si) purity threshold, assuming a production yield of +90% (or commercial scale
production yield of traditional Metallurgical Grade Si (MG-Si) smelters (98.5% - 99.5% Si)).
These results exceed 2017 Gen1 base extrapolations that indicated then that the carbothermic part of the
PUREVAP™ QRR process could only reach the 3N+ Si (99.9+% Si) threshold using low purity feedstock (98.84%
SiO2)4, and furthermore this required a 100% production yield (November 1, 2017 release).
Mr. Bernard Tourillon, President and CEO of HPQ Silicon Resources Inc further stated: “Having a process
capable of producing 4N+ Silicon Metal in one step is, according to Apollon Solar, one of the most unique and
potentially the greatest advantage of the PUREVAP™ QRR process as we strive to develop a low cost
and green metallurgical process to produce Solar Grade Silicon Metal (SoG-Si).”
Pierre Carabin, Eng., M. Eng., Chief Technology Officer and Chief Strategist of PyroGenesis has reviewed and
approved the technical content of this press release.
This News Release is available on the company's CEO Verified Discussion Forum, a moderated social media platform that enables civilized
discussion and Q&A between Management and Shareholders.
About HPQ Silicon
HPQ Silicon Resources Inc. is a TSX-V listed resource company focuses on becoming a vertically integrated and
diversified High Purity, Solar Grade Silicon Metal (SoG Si) producer and a manufacturer of multi and monocrystalline solar cells of
the P and N types, required for production of high performance photovoltaic conversion.
HPQ’s goal is to develop, in collaboration with industry leaders, PyroGenesis (TSX-V: PYR) and Apollon Solar,
that are experts in their fields of interest, the innovative PUREVAPTM “Quartz Reduction Reactors (QRR)”, a truly 2.0
Carbothermic process (patent pending), which will permit the transformation and purification of quartz (SiO2) into high
purity silicon metal (Si) in one step and reduce by a factor of at least two-thirds (2/3) the costs associated with the
transformation of quartz (SiO2) into SoG Si. The pilot plant equipment that will validate the commercial potential of
the process is on schedule to start mid-2019.
Disclaimers:
This press release contains certain forward-looking statements, including, without limitation, statements
containing the words "may", "plan", "will", "estimate", "continue", "anticipate", "intend", "expect", "in the process" and other
similar expressions which constitute "forward-looking information" within the meaning of applicable securities laws.
Forward-looking statements reflect the Company's current expectation and assumptions, and are subject to a number of risks and
uncertainties that could cause actual results to differ materially from those anticipated. These forward-looking statements involve
risks and uncertainties including, but not limited to, our expectations regarding the acceptance of our products by the market, our
strategy to develop new products and enhance the capabilities of existing products, our strategy with respect to research and
development, the impact of competitive products and pricing, new product development, and uncertainties related to the regulatory
approval process. Such statements reflect the current views of the Company with respect to future events and are subject to certain
risks and uncertainties and other risks detailed from time-to-time in the Company's on-going filings with the securities regulatory
authorities, which filings can be found at www.sedar.com. Actual results, events, and performance may differ materially. Readers
are cautioned not to place undue reliance on these forward-looking statements. The Company undertakes no obligation to publicly
update or revise any forward-looking statements either as a result of new information, future events or otherwise, except as
required by applicable securities laws.
Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the
policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.
For further information, contact
Bernard J. Tourillon, Chairman, President and CEO Tel (514) 907-1011
Patrick Levasseur, Vice-President and COO Tel: (514) 262-9239
www.HPQSilicon.com
Shares outstanding: 222,284,053
1 Production Yield of the process is the conversion efficiency of Si element in the raw material (i.e. Quartz) into
elemental Silicon Metal
2 Capacity of the process to volatize impurities from raw material (Quartz or SiO2 and Carbon) while making Si
3 Pyrogenesis Canada Inc. Technical Memo: “TM-2018-894 REV 00, - Final
Report”
4 Pyrogenesis Canada Inc. Technical Memo: “TM-2017-830 REV 00, - Final
Report-Silicon Metal Purity Enhancement”