1. Title of the invention :

Ore beneficiation of ferrous and non-ferrous ores using super magnetic separation and froth sluicing.

2. Applicant:

Name : Eesavyasa Technologies Pvt. Ltd.
Nationality : Indian
Address : 108-B, I.D.A. Khanapuram, Khammam(DT), Andhra Pradesh. Pin: 507002

3. Preamble to the description:
Complete specification:

Summary:

In the summary of invention, each important salient feature is explained as follows:

Separation of each material distinctly with fixed chemical formula from other materials of different chemical compositions using physical parameters like densitometric separation, magnetic separation and a special technique proposed which is called dielectric sieving.

In this first method of gravitational separation, different materials are subjected to mechanical vibrations with the help of specially designed mechanical or civil structures and undergo jigging or sluicing with air or water. In this process material finely ground will be flushed over specially channelized structures of different depths so as to be collected at different heights in those channels due to different densities. Seperate mechanical structures like sluicing chambers are employed to extract better results from conventional froth flotation process to minimize oil usage.

In the second method ferromagnetic and non-ferromagnetic or feebly ferromagnetic materials are separated by induction of controlled magnetic field strength. Here a magnetic stirrer with saddles made up of electromagnetic materials is rotated in a chamber. After certain time period and quantity of material collection over surface of stirrer, the stirrer is removed out and attracted material will be separated.

In the third procedure the remaining material will be passed over a conveyer belt through a chamber lined with super magnetic material made up of neodymium doped with rare earth lanthanides like Lanthanum, Samarium, Hafnium, etc. Depending on the nature and quantity of doping material, required specific magnetic field strength can be attained to separate out ferromagnetic, paramagnetic materials from diamagnetic substances.

In the fourth and final step the remaining material will be subjected to Dielectric sieving in which different materials at atomic level will be separated by inducing external resonating frequencies.

4. Description:

The present invention is concentrating on separation of different materials with distinct chemical compositions or structures based on their selected physical properties. In order to beneficate ferrous, non-ferrous or any other materials densitometric separation is widely under practice. Gravitational separation involves froth floatation, compressed air circulation, passage of slurry material over suitable distinct mechanical structures like sluicing chambers to separate gravity based materials.

In this area we are proposing a special kind of sluicing chamber/jigging chamber where air jigging or liquid jigging or both one after the other are used by introducing different pressures of air at different regions at different intervals within the specially constructed mechanical structures. In these special structures certain depth of grooves or channels are arranged so that material with higher density gets deposited after deceleration when jigging takes place. The other material which passes over these grooves are sent into another chamber through selective sieving mesh in which a special type of electromagnetic stirrer with saddles are arranged to provide stirring. When material passes, under the influence of external current magnetic stirrer attracts highly ferromagnetic materials like magnetite on the surface of stirrer. Nonmagnetic materials will be collected in the bottom collection tank. After certain period this magnetic stirrer will be removed out into another chamber where current is withdrawn so that ferromagnetic material will be collected out. Depending on the nature of the material and its magnetic constant, the external electromagnetic field strength will be adjusted.

The second portion of proposed invention involves collection of finely ground ore particles which may not be separated with ferromagnetic substances in the earlier step. These particles will be passed over a conveyer belt which contains a magnetic roller or a chamber made up of super magnets of neodymium doped with special type of lanthanides like Samarium, Lanthanum, Hafnium, etc., which will increase the magnetic strength to more than 1000 times compared to normal neodymium magnets. Depending on the nature and quantity of doping element the strength of magnets increases even to separate out feeble magnetic materials and also some paramagnetic materials. With this procedure almost more than 99 percent of materials which magnetic affinity will be separated out.

The remaining material will be subjected to air jigging or water jigging in which air will be flushed with controlled release so that based on the densities different substances will be separated at different regions.

In the final procedure the material will be sent into a specially designed chamber called as Di-electric chamber which is the major claim of our invention. Here the principle of unique dielectric nature exhibited by any material when passed through capacitor plates under uniform specific temperature and uniform specific humidity is utilized for separating the substances of different dielectric constants. In this procedure in laboratory we will find out the dielectric constant of each material. Then the material is passed through two capacitive plates under fixed humidity and temperature by subjecting to external varied frequencies at fixed voltage where at certain range of frequency, the material resonates by changing its vibrational speed or decelerating speed. This specific range of frequency at that particular voltage will be recorded and taken as standard parameters to apply for the massive separation of materials in dielectric chamber. The critical point of the procedure is maintaining uniform humidity and temperature throughout the procedure to take maximum benefit out of dielectric behavior of each material towards external resonating frequency. It is a fingerprint property of every substance even to the level of atomic state where distinctly each substance can be separated out. By varying the dielectric resonating frequencies in the outer chambers at different places, relevant different substances can be segregated out.

Background of invention

Every material has distinct physical properties like colour, density, magnetic affinity, crystalline nature dielectric constant, molecular resonance towards external induced electric and magnetic fields. Usually normal ore purification methods like leaching with water, pulverization, ball milling, vibrational sieving, froth floatation and magnetic separation are under practice and used depending on the nature of impurities separated. But there is no one specific procedure which can be applicable to all types of ores or impure substances which can be used by and large. The endeavour of this invention is to develop a generalized, efficient, accurate and cost effective method which can be used for all the ores and minerals as well as for all types of end products to be purified from the impurities present in them in every walk of the industry.

6. Brief description of drawings:

Figure-01

1. Different depth of channels - In horizontal column different depths of channels are constructed mechanically or with civil structures.
2. Collection tank - the material slurry passes through mesh before entering through the chamber consisting of magnetic stirrer.
3. Magnetic disc is coated with electromagnetic material which works under external magnetic field.
4. Hopper is used to feed the crushed material.
5. Saddle is coated with electromagnetic material which works under external magnetic field.

Figure-02

1. Air compressor is used to flush out the particles attracted to super magnetic surface of the chamber.
2. Super magnetic chamber is a chamber lined on inside with super magnetic material doped with rare earth elements
3. Outlet is arranged for collecting flushed out material
4. Free flow of finely ground material is arranged through meshes.
5. External electric field perpendicular to super magnets enhances magnetic strength.

Figure-03

1. Air compressor is used to flush out the particles collected by varied vibrations or mechanical movement of specified material.
2. Dielectric chamber is a chamber in which material is subjected for dielectric sieving is kept.
3. Outlet is arranged for collecting flushed out material
4. Free flow of finely ground material is arranged through meshes.
5. External electric field perpendicular to dielectric chamber to provide resonating frequency between capacitive plates.

7. Claims

1. We claim that Ore Benefication for ores like iron ore, baryties, chromite ore, laterite, baxite manganese ore, coal, fly ash, silicon, uranium, gold, silver, copper feldspar, lime stone nickel ore, china clay etc and all types of minerals and ores where specified constitutents can be separated out.

2. We claim that we can find out material quality when compared with known standard material using the dielectric nature of the materials.

3. We claim that the Quality seed from inferior seed can be separated out based on their gravities and dielectric natures while comparing with known standard sample.

4. We claim that when various qualities of materials or various concentrations of same materials are online sent through dielectric resonating chamber, by inducing selective voltage externally required materials can be segregated out. For example rice grains mixed with stones can be separated out.

5. We claim that various qualities of coal will be extracted out in mining. They can be separated out by passing through dielectric resonating chamber where different percentage materials can be dragged out in different regions.

6. We claim that with this technique any elemental separation in its pure state when combined with other materials can be separated.

7. We claim that a mixture of gases or air or molten state any material including metals can be distinctly separated subjected with dielectric sieving.

8. We claim that complete range of refining including petroleum, natural gas, oils and other slurry mixtures, etc can be distinctly separated out as per the dielectric constants of the constituents.

9. We claim that in the field of medicine, bulk drug production, medical diagnostics chemical and serological separations and biological fluid separation, biological constituent separations can be done with the above claimed principles.

10. We claim that water and solvent purification from effluences can be done.