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Using A Trommel For Placer Processing
April 2010 by Chris Ralph
The behavior of a trommel is dependent on how it is designed and set up. Important design characteristics include feed rates, screen perforation sizes, cylinder size, rotation speed and incline.
Additional articles that might interest you...
Australia Produces World's Largest Gold Coin
March 2012
Australia’s Perth Mint currently holds the record for the world’s largest gold coin.
Australia’s Perth Mint currently holds the record for the world’s largest gold coin.
Is a Gold Rush Coming to the Iron Range?
September 2004
Scientists from the state Department of Natural Resources reported that they recently discovered the highest concentrations of gold particles ever found in the state during routine soil sampling near Soudan.
Scientists from the state Department of Natural Resources reported that they recently discovered the highest concentrations of gold particles ever found in the state during routine soil sampling near Soudan.
Gold in Texas
October 2001
There are numerous legends involving “lost” Spanish mines and treasures in central Texas, some of which have actually been found. The most famous mine, which remains lost, is the San Saba.
There are numerous legends involving “lost” Spanish mines and treasures in central Texas, some of which have actually been found. The most famous mine, which remains lost, is the San Saba.
Alaska's Cripple Creek Mining District
November 2011
If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.
If developed with metal detecting in mind, this virgin ground could be a bonanza for nugget hunting.
Our Readers Say
May 2016
Investing In Junior Mining Stocks
September 2008
How to invest in junior mining stocks: In order to form a basis for evaluating mining stocks, it is important to understand the progression of projects from the very first glimmerings in the eyes of a prospector to actual, full-scale, revenue-producing production of the metals themselves.
How to invest in junior mining stocks: In order to form a basis for evaluating mining stocks, it is important to understand the progression of projects from the very first glimmerings in the eyes of a prospector to actual, full-scale, revenue-producing production of the metals themselves.
Ask the Experts
August 2007
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)
If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?
Q: Does anyone know of an electrowinning instrument that will plate (heavy plate) rhodium and iridium? I have both in solution. (Solution content = 262.9 oz/ton of iridium; 14.9 oz/ton rhodium.)
If I have precious metals in solution in bulk, say 620 to 1,000 gallons, is there a facility to extract the precious metals out? If so, can each be isolated?
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The Bawl Mill
• Legislative and Regulatory Update
• Prospecting for Hardrock Gold - Part II
• Gold in Alaska - Part II
• Gold Prospecting in Maine - Part I
• Gold Prospecting Is For Ladies, Too
• Sage-Grouse Won't Get ESA Listing For Now
• How to Find Gold in Hot Ground With A VLF Detector
• Oregon County Tries to Interfere With Lawful Mining Operation
• Melman on Gold & Silver
• Mining Stock Quotes & Mineral and Metal Prices
