Dry Electrostatic Air Separators - ESAS
FEATURES:
- Self cleaning continuous discharge of concentrated material. (Gold or Heavy Minerals)
- 100 % full speed adjustment of Recovery Air Belt. Enables you to fine tune in exactly how much concentrates you wish to produce (Ratio of Concentration).
- Moisture content does not pose a huge problem, as long as the material is able to move and flow freely during handling.
- No water used which means no costly permitting or operating of tails impoundment ponds. No water reclamation needed !
- No chemicals used to recover valuable minerals, which is good for the environment.
POTENTIAL APPLICATIONS:
-
PRECIOUS METALS RECOVERY
(Gold, Silver, Platinum, Palladium, Rhodium)
- STRATEGIC METALS
(Tantalum, Zirconium, Hafnium, Tin, Gallium)
- UPGRADE CONTAMINATED COAL
(Pyritic Iron, (Sulfur), Silica (Ash)
- SOIL REMEDIATION
(Toxic Heavy Metals, Lead, Cadmium, Chromium, Mercury)
- RARE EARTHS
(Cerium, Dysprosium, Erbium, Europium, Gadolinium, Holmium, Lanthanum, Lutetium, Neodymium, Praseodymium, Samarium, Scandium, Terbium, Thulium, Ytterbium, Yttrium)
I.
INTRODUCTION TO DRY ELECTROSTATIC SEPARATION:Because much of the world/s mineral wealth exists in exceptionally small concentrations, the cost of recovery of valuable materials from both natural deposits and tailings of other processes has been unexpectedly high. This is particularly true when the concentration is below 0.5%, or as little as 100 PPM.
A new technology, covered by international patents, is now available to separate and concentrate massive volumes of wealth from abandoned Tailing’s Piles and Dump, thereby allowing the accumulation and development of considerable wealth from previously "worthless" materials. The application of this technology is offered on a Service basis to qualified companies.
II. SOME HISTORY – WET AND DRY RECOVERY
The history of gold mining is lettered with numerous attempts to develop dry and wet recovery (particularly in the United States during the Gold Rush Days and the period following). Conditions were harsh, technology often fell short of theory, and disappointment was rampant. Recovery rates were low. Today, we want 90% and try to achieve 95%.
A good dry recovery was particularly difficult to achieve. Sufficient and even air- flow was impossible, and the material available lacked the elements necessary for durability and control.
NOW, we have available a sophisticated technology and materials that will
revolutionize the industry.
III. WHY A DRY PROCESS?
Consider clay as an example. Clay is an excellent collector for precious metals. Usually the clay is derived from the erosion of volcanics and rock type associated with gold deposition. However, when clay is introduced into wet placer systems, it creates an emulsionary effect allowing the fine gold to float off or adhere to the clay making recovery very difficult.
What happens during our dry method? Common clays when quite dry have a specific gravity from 1 to 2. Gold at 19.3 specific gravity will dropout and/or is attracted by the electro-static potential on the recovery belt. We have found that a small clay ball with a speck of gold inside is still retained due to the electro-static effect. With today’s technology and new materials, we can effectively recover gold and other minerals using this dry system. Our dry system eliminates problems associated with water, and provides additional control factors to enhance recovery. Water itself is a heavy element. The absence of water allows more efficient separation of materials by specific gravity.
IV. ADVANTAGES OF A DRY PROCESS
- Ability to concentrate very large volumes of ores
- Dry crushing and concentrating is more economical than wet chemical leaching.
-
Channeling of chemical pregnant solutions in large leach beds and impervious conditions usually recover 60 to 70% of the mineral.
By using our dry technology, the huge liability of using Cyanide and other chemical pollutants are
eliminated. It is then possible to "batch leach". The small batch leach shortens the
cycle of time and controlling leaching chemicals allows for re-use and/or
decontaminated neutralizing. There is much less chance of soil
contamination or environmental impact.
- Less water
- Less space
- Less manpower
- Less liability
- Environmentally sound economic recovery.
Picture at right shows Three(3) S-100-T models in series fed by one single screening plant, with tails removed by single conveying system.
V. GEOGRAPHICAL AREA OF USE:
Since the Electro-Static Air Separator System is a dry system, the Systems will operate efficiently with a moisture content from One (1%) up to Eight (8%) content, thus areas that have excessive amount of rainfall, material can be air dried prior to processing.
The ratio of concentration will range from 100:1 upward to 300:1 depending on the amount of commercial values to be recovered per ton.
Also, Concentrates may be run thru the Electro-Static System at the end of each shift, to produce a Super Concentrate. Tails from the re-run are returned to stock pile to be processed the following shift. No Loss.
VI. FUTURE AND POTENTIAL:
The future of this technology seems unlimited. As a method of concentration and separation, the Electro –Static Air Separator system provides greater control and much greater volumes. The flexibility and economy which are major advantages of this system will eventually tend to displace other more traditional methods of recover and separation.
VII. Recommended Due diligence:
Phase – 1.
A sufficient amount of ore (as is bank run), approximately 2,000 lbs., would be shipped to Rare Metals Corporation's Laboratory for a full analysis to determine the possible potential of the recovery and amenability to Electro-Static Air Separation Technology. The analysis will determine the following;
a). contained Commercial Values in Head Ore,
b). contained Precious & Strategic Metals in Head Ore,
c). contained Base Metals
d). contained Rare Earths
e). contained Values in Concentrates & Tails,
f). ratio of concentration by Electro-Static Concentration,
These Services are performed on a Contract Fee Basis Only.
Phase – 2.
After successful conclusion of Phase – 1, a minimum of one (1) truck load (approximately) 22 tons, would be shipped to Rare Metals Corporation for a pilot run, concentration and further analysis.
The capacity per hour of the Electro –Static Air System is between 5 and 10 tons per hour, and the production units are rated at 100 Tons Per hour of Bank Run Ore. Also the Production units can be installed in parallel.
A Ten (10) Ton per Hour Portable Test Plant (Trailer Mounted w/power) can be transported to Ore location and field-tested.
The above services are furnished on a Contract Fee Basis only.
Models Available
- S-10 : Pilot unit complete with vibrating screen, 5-10 tons per hour of bank run* material. Can be fed by backhoe or conveyor.
- S-100-C : Production unit complete with screening plant and radial stacking conveyor for tailings. Capacity 100-150 Tons per hour bank run*
- S-100-T : production unit design to be placed multiple units using common conveying and screening systems. Capacity 150-200 Tons per hour bank run*
* Bank Run capacity figures based on normal placer material, capacity may vary due to many factors.
For further information and details, please call RMC at ..... (760) 361-8051.
Ask for Frank J. Snyder, Sr
e-mail address: raremetals@rmcgold.com
