EnviroGold files new patent application for leaching process

This patent application, combined with the previously filed Application PCT AU2023/051121 for an improved process for recovery of refractory ores, completes the suite of intellectual property protection the Company requires for its NVRO Clean Leach Process.

The Company’s Chief Technology Officer, Mr. Brock Hill said, “This patent application follows an extended pilot study conducted at ALS Global’s Perth, Western Australia Metallurgical Facility in July 2023. The pilot study was designed to confirm process recoveries and identify any process challenges which could prevent the Company from moving to full scale commercial production. The results of this work have enabled the Company to significantly improve several components of the NVRO Clean Leach Process including improved catalyst recovery, lower operational cost, and increased recovery of gold and silver from refractory ores.”

CEO David Cam commented, “The patent filing builds on the previous patent application and together completes the intellectual property protection for the Company’s NVRO Clean Leach Process and gives our Company a first mover advantage in this exciting and growing market. The improvements also broaden the Company’s ability to reprocess other mine tailings and concentrates, enabling the Company to pursue reprocessing opportunities across a broader range of metals, including strategic metals and rare earth elements.”

The Company has seven active projects representing a total of over 300 million t of tailings, and five of these projects are associated with major global mining companies.

Mr. Cam also confirmed earlier market guidance, that the Company has committed to build a centralised demonstration plant in Brisbane, Australia that will allow customers, including several of the world’s largest mining and mineral processing companies, to test the NVRO Clean Leach Process on tailings and smelter by-products. The modular plant will incorporate the component features protected by the current patent applications.

Further, the Company intends to commence an in-depth valuation review to determine the commercial, social, and economic value drivers of the NVRO Clean Leach Process to mining and mineral processing companies worldwide. It is expected the results will illustrate the significance of economically recovering valuable metal entrained in mine waste and tailings and importantly, the additional value to our customers of the environmental remediation benefits derived by utilising the NVRO Clean Leach Process. The results of this analysis will form the basis for upcoming commercial negotiations with the Company’s customers and strategic investors.

Read the article online at: https://www.globalminingreview.com/mining/10052024/envirogold-files-new-patent-application-for-leaching-process/