A Treasure of Free Homemade Gold Prospecting Equipment Plans and Commentary: 3" Gold Concentrator Tests Out Gold Tailings in Mongolia

Blue Bowl Concentrator

Tuesday, October 29, 2013

3" Gold Concentrator Tests Out Gold Tailings in Mongolia

I am hoping that the article I have found about a gold centrifugal concentrator (3") will perhaps spur some curiosity and inventiveness among duly interested readers. A dozen samples were taken with it and determined significant gold losses in 2 of 4 samples. To be specific, pages 8, 9, and 10 of this pdf have diagrams of the working parts of this gold concentrating device. Page 2 shows an actual photograph of the equipment.. http://www.mine.mn/WPJ2_1_Knelson_winter_test.htm

The article is about a geologist who went to Mongolia under contract to test the tailings of a gold recovery operation that used Russian-style sluices. With a 20" concentrator, average losses were found to be 37% over the period 1993-1997 to the Mongolian government.
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