Ask The Experts
March 2016 by Chris RalphOptions for affordable crushers for small mining operations
The non-toxic thiosulfate is actually the medical antidote given to people for cyanide poisoning. By accomplishing both neutralization and metals recovery, this process creates an economic and environmentally attractive process.
Depending on the ore and if significant sulfides are present, a hard rock miner may be able to get away with simply using a flux to digest the other minerals that may be present.
Most gold-bearing veins in this region are controlled by fractures associated with the Melones Fault, a late Cretaceous structure that is 108 to 127 million years old.
It all started with a phone call from my friend and prospecting partner Pat Keene. He told me that he knew of an investor who was just starting out in the gold industry and was looking for a gold consultant to go to Africa to prospect and analyze a 400 sq. mile concession in the middle of the Congo rainforest. I waited for the “just kidding” line...
There are currently three controlling agencies or entities over suction dredging in California—and you can make that four if the state legislature decides to further muddy the waters with additional legislation to block suction gold dredging in the state.
Centrifugal bowls are very efficient, and with proper operation they can consistently achieve gold recoveries above 95% with gold of about 50 mesh size.
The Bawl Mill • Legislative and Regulatory Update • Ask The Experts • Ask The Experts • How to Stake Your Own Mining Claims—Part I • Addressing EPA Overreach: What Dredgers Need to Know • Green Valley Gold District, Payson, Arizona • Nevada's Silver City Gold District—Part I • Enrichment of Mineral Deposits by Weathering—Part I • Alaska: Kodiak Islands Mineral Resources • Melman on Gold & Silver • Mining Stock Quotes and Mineral & Metal Prices