Comstock Inc (LODE)

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VIRGINIA CITY, Nev., Sept. 04, 2018 (GLOBE NEWSWIRE) -- Comstock Mining Inc. (the “Company” or “Comstock”) (NYSE American: LODE) today announced that the Company and Itronics Inc. (OTC: ITRO), have commenced testing Itronics’ clean, KAM-Thio recovery system on unprocessed gold and silver bearing minerals extracted from Comstock’s Dayton resource area, located in Lyon County, Nevada.

The previous tests recovered the substantial majority of the silver while the new KAM-Thio residual solution was substantially regenerating during the metal recovery process, thus reducing the net consumption of the reagents and creating a potentially compelling economic solution. Itronics has also previously reported that the remaining cyanide in the leached material was neutralized by the new leaching process, reducing the cyanide to an almost undetectable level on the spent material and potentially to drinking water standards in the residual solution.

Corrado De Gasperis, Executive Chairman and CEO commented, “We have previously reported positive results processing this solution on previously leached material, especially with silver, so we are extending the tests onto higher-grade, virgin materials to determine if we can replicate the clean extraction with both silver and gold.”

The testing on freshly exposed mineralized material should better model and validate the key processing steps for the extraction of the gold, as well as the silver. The combined process results could dramatically reduce reclamation costs and associated bonding for the Dayton project.

This now extends the collaboration between our two companies beyond evaluating whether the engineered, process flow design works for extracting remaining gold and silver from previously leached materials, to applications for extracting both gold and silver from virgin mineralized materials. This enhanced process could improve the economic feasibility of the Company’s Dayton project and potentially also result in the production of clean rock products that may be saleable.

Mr. De Gasperis concluded, “A breakthrough with higher, cleaner recoveries, coupled with reduced waste and the recently discovered higher precious metal grades (up to 0.25 opt gold and 3.5 opt silver) in the Dayton adit, positions us toward an updated resource estimate and, more importantly, the preliminary economic assessment (PEA) of those gold and silver resources. We look forward to publishing all of these results, along with the rest of our progress, in a stand-alone, NI 43-101 technical report, later this year.”

http://globenewswire.com/news-release/2018/09/04/1564720/0/en/Comstock-Mining-Commences-Clean-KAM-Thio-Tests-Collaborating-with-Itronics-on-the-Dayton-Resource-Development.html