North Bay Resources Reveals Exciting Gold Recovery Results
NORTH BAY RESOURCES INC. (OTC: NBRI) has announced significant advancements following a recent evaluation of its Fran Gold Project. The company is thrilled to share that its metallurgical studies have achieved an impressive 97% gold recovery rate. This remarkable outcome derived from the combination of 67% gravity and 30% flotation recovery methods showcases the efficiency of their processes.
Metallurgical Studies Overview
The metallurgical tests conducted on samples from the Fran Gold Project revealed a notable head grade of 0.9 ounces per ton. Yet, through gravity separation, this value escalated dramatically to 8.54 ounces per ton. Following additional flotation techniques, the total concentrate reached an eye-catching 11.23 ounces per ton, which marks a 12-fold improvement in concentration.
Sample Analysis Techniques
To achieve these results, North Bay Resources leveraged advanced multi-element analyses at Woods Process Services. Utilizing the CEM Mars 6 microwave digestion system combined with Agilent's ICP-OES 5800, the samples underwent a rigorous three-acid digestion process. The samples were then thoroughly analyzed, allowing for precise quantification of various elements including gold, silver, copper, and others through optical emission spectrometry.
Gravity Separation Process
The company employed a meticulous grinding study that involved 1,000-gram samples, determining the milling duration necessary to reach a targeted grind size. Following this, effective gravity separation was executed using the Knelson concentrator, which collected heavy materials through centrifugal force while lighter gangue materials were washed away.
Flotation Testing Insights
Two flotation tests were subsequently performed. Each trial included conditioning the material with flotation reagents ensuring optimal recovery rates of both gold and silver. These results provided insights into refining processes, revealing the need for adjustments due to the high concentration level of quartz during processing.
Winter Ore Shipment Completion
The logistical challenges involved in transporting a 120-ton shipment to North Bay's Bishop Gold Mill in California have now concluded. The shipment comprised eighty-two super-sacks, weighing an average of 2,900 lbs. each, indicating favorable metal concentration expectations given the reduced number of sacks compared to preliminary estimates.
Equipping for Future Success
As a result of the promising findings from the metallurgical study, the company has invested in new gravity separation equipment, including the Knudson Bowl centrifugal concentrator and Gemini Table. These upgrades are slated for immediate installation, enhancing the company's operational capabilities.
Production Quality and Additional Discoveries
Preliminary samples processed have shown gold concentrations ranging from 0.3 to 0.5 ounces per ton, representing a substantial increase in quality. Recognizing the dilution at the Deister Table, North Bay's Process Engineers are actively optimizing the mill circuit for better recovery outcomes going forward.
The Fran Gold Project Potential
Spanning over 34,360 acres, the Fran Gold Project has proven to be rich in resources. The project is located near significant mining operations and has already seen extensive diamond drilling, uncovering gold veins up to 3700 feet long with notable copper and silver grades. This indicates ample potential for further discoveries on the property.
North Bay Resources is committed to maximizing the potential at Fran while enhancing their operational practices. As the team continues to innovate and improve recovery methods, stakeholders should anticipate exciting developments ahead that promise not just yield but also sustainability in resource extraction.
On behalf of the Board of Directors of
NORTH BAY RESOURCES INC.
Jared Lazerson
CEO
info@northbay-resources.com
northbay-resources.com
X: @NorthBayRes
Frequently Asked Questions
What is the gold recovery rate announced by North Bay Resources?
The company announced a gold recovery rate of 97% from its Fran Gold Project.
What equipment upgrades is North Bay Resources implementing?
The company is acquiring additional gravity separation equipment, including the Knudson Bowl concentrator and Gemini Table.
What is the significance of the latest metallurgical studies?
These studies have improved gold concentrate grades significantly, increasing total concentrate to 11.23 ounces per ton.
Where is the Fran Gold Project located?
The Fran Gold Project is situated in British Columbia and spans over 34,360 acres.
How can interested parties learn more about North Bay Resources?
Visit the company's website at northbay-resources.com or contact them via email for more information.
