Electric / thermal mineral separation.

AI Thread Summary
Colin Wilson introduces a new mineral separation process and seeks assistance or partnership to develop it. The process requires a tank circuit, a high power/high frequency oscillator, and a physical unit with EM shielding. Induction heating is central to the method, utilizing eddy currents and skin effect to heat conductive materials, particularly gold particles averaging 80 microns. Wilson has samples from three gold mines and is considering initial tests with larger, less conductive materials like brass. He also suggests that a spark gap oscillator might be a cost-effective option for preliminary experiments.
ColdGold
Messages
1
Reaction score
0
Hello my name is Colin Wilson and I am the inventor of a new mineral separation process.

http://www.coldgold.rotoquad.com

I am looking for help and/or a partnership in this endeavor.
As a group I can not think of a better place to start. To test this new method of mineral recovery 3 things are required:

1) The tank circuit.
2) A high power/high frequency oscillator.
3) The physical unit including the conveyance system.

The tank circuit requires good capacitors and a water cooled coil.
The HF oscillator is where I really need the help.
The physical unit can consist of EM shielding and a manual feed system to begin with.

In brief, induction heating relies on eddy currents and the “skin effect” to heat conductive materials. In the case of ferrous material the job is somewhat easier as hysteresis and a lower conductivity also comes into play.

I have small concentrate samples from 3 gold mines (the Yukon, Nevada and Cape Breton).
These samples are very typical with the gold particles averaging about 80 um (.003”).
To rapidly heat particles of this size and conductivity, frequencies in the 20-30 Mhz range are required. Power levels in the low kw range are also required (for a small test base).
Platinum would be easier given its relatively low conductivity but I have little knowledge, at the moment, of how the ore is prepared etc.
I also have a small machine shop and the ability to fabricate and program circuits based on the PIC microcontroller.
Initial tests can be conducted with somewhat larger particles and less conductive material (such as brass) to provide some initial data.
From a purely cost point of view I’ve been considering a spark gap oscillator for the first tests?
Any input etc. would be appreciated.
 
Last edited by a moderator:
Engineering news on Phys.org
Purchase an induction heater.
I designed and built one 30 years ago, and I assure you, you don't want to go down that road.
 
Very basic question. Consider a 3-terminal device with terminals say A,B,C. Kirchhoff Current Law (KCL) and Kirchhoff Voltage Law (KVL) establish two relationships between the 3 currents entering the terminals and the 3 terminal's voltage pairs respectively. So we have 2 equations in 6 unknowns. To proceed further we need two more (independent) equations in order to solve the circuit the 3-terminal device is connected to (basically one treats such a device as an unbalanced two-port...
suppose you have two capacitors with a 0.1 Farad value and 12 VDC rating. label these as A and B. label the terminals of each as 1 and 2. you also have a voltmeter with a 40 volt linear range for DC. you also have a 9 volt DC power supply fed by mains. you charge each capacitor to 9 volts with terminal 1 being - (negative) and terminal 2 being + (positive). you connect the voltmeter to terminal A2 and to terminal B1. does it read any voltage? can - of one capacitor discharge + of the...
Back
Top