Business
Tocvan Ventures Announces Results for Gold - Silver Bulk Sample Heap Leaching
Outlines Process Flow to Further Optimize Rapid Recovery Potential Highlights Recovery Results for Heap Leaching Match Regional Operating Mines; Head Grade Exce
About this update from Tocvan Ventures Corp.
[{"type":"text","content":"Outlines Process Flow to Further Optimize Rapid Recovery Potential Highlights Recovery Results for Heap Leaching Match Regional Operating Mines; Head Grade Exceeds Expectations 62% Recovery of Gold Achieved Over 46-day Leaching Period Report Confirms with Increase in Irrigation Flowrate, Higher Recovery Can Be Achieved Head Grade Calculated at 1.9 g/t Au and 7 g/t Ag; Extracted Grade Calculated at 1.2 g/t Au and 3 g/t Ag Bulk Sample Only Included Coarse Fraction of Material (+3/4” to +1/8”) Fine Fraction (-1/8”) Indicates Rapid Recovery with Agitated Leach Recap of Fine Fraction and Gravity Recovery Results Agitated Bottle Roll Test Returned Rapid and High Recovery Results: 80% Recovery of Gold and 94% Recovery of Silver after Rapid 24-hour Retention Time Gravity Recovery with Agitated Leach Results of Five Composite Samples Returned 95 to 99% Recovery of Gold 73 to 97% Recovery of Silver Includes the Recovery of 99% Au and 73% Ag from Drill Core Composite at 120-meter Depth Calgary, Alberta - TheNewswire - August 22, 2023 - Tocvan Ventures Corp. (the “Company”) (CSE:TOC) (OTC:TCVNF) (FSE:TV3), is pleased to provide results from a Bulk Sample completed at its Pilar gold-silver project Sonora, Mexico. Independent Qualified Professionals at LTM of Hermosillo have provided a final report after the completion of final analytical results. The report findings include a base of 62% recovery of gold and 47% recovery of silver. Head grade results were calculated by LTM as 1.9 g/t Au and 7 g/t Ag, with calculated recoverable metal extracted at 1.2 g/t Au and 3 g/t Ag. Importantly the report notes that the first 30 days of leaching was restricted by an erratic and low flowrate of cyanide leaching solution. This was corrected once identified through the installation of updated irrigation systems and began instantly improving irrigation flowrate and metal recovery. LTM notes that increased gold and silver recovery is likely with a more consistent flowrate. LTM has recommended a duplicate column leach study of available bulk sample composite material to verify the ultimate gold and silver extractions under heap leach. It is also important to note the low cyanide (NaCN) consumption recorded (0.19 kg/t), indicating low cost of operation. In addition to the heap leach ...