Technologies

Electric separation

Advantages of electric separation:
1. Low energy intensity (does not require water consumption and costly wastewater treatment).
2. High degree of valuable component recovery, production of high-quality commercial-grade concentrate.
3. Outdoor operation is possible under temperature from -60°C to hundreds degrees above 0°C.
4. The lowest dust level in the air compared to other dry methods (the dust is almost completely retained by the electric field inside the separator).
5. Environmentally safe and almost waste-free production.

Intended use:
1. Electrical enrichment is the process of separating mixtures of minerals by mineral composition based on the differences in the electrical properties of the components to be separated.
2. Electrical classification is the process of separating particles of one mineral or minerals which have similar electrical properties but differ in the size and/or shape of the particles (feldspar-quartz raw material for glass industry, vermiculite, graphite, abrasive products, etc.).

Areas of application:
The following are the main areas of application of electric separation (ferrous and non-ferrous ores, non-metallic minerals, industrial and metallurgical wastes). However, this is not all that the technology can do. Our specialists will consult you on the possibility of enriching raw materials which are not listed in this section.

Mineral
complex

Purpose of
electric separation

Separator
type

Non-metallic minerals and materials

Diamond ores

Enrichment
of diamond ores for the separation of diamonds from waste materials

Electrostatic
corona separator

Barium ores

Enrichment
of barium ores for the separation of barium from quartz

Pneumo-electric
separator

Asbestos
ores

Enrichment
of asbestos-containing tailings for the separation of asbestos from waste
materials, dedusting of lower grades of asbestos

Separation with
electrostatic corona separators, as well as with pneumo-electric separators

Boron-containing
ores

Separation
of boronatrocalcite from impurities

Pneumo-electric
separator

Coal
(including small-sized types), carbonaceous shales, antracites

Enrichment
and particle size classification for the reduction of ash percentage

Separation with
electrostatic corona separators, as well as with pneumo-electric separators

Corundum,
electrocorundum and other abrasives

Close particle
size classification. Removal of impurities.

Electrostatic
corona separator

Phosphate
ores

Enrichment
of phosphate ores of seashell and sand types for the separation of phosphorite
from silica minerals

Pneumo-electric
separator

Potassium
ores

Enrichment
of sylvinite ores for the separation of sylvites and halites

Pneumo-electric
separator

Quartz ores

Enrichment
of glassmaking sands for the separation of quartz from mineral impurities
containing iron, titanium and chromium

Electrostatic
corona separator

Enrichment
of molding sands for the separation of feldspars, etc.

Pneumo-electric
separator

Enrichment
of granular quartz (instead of rock crystal) for the removal of all mineral
impurities in order to obtain high-purity concentrate

Separation with
electrostatic corona separators, as well as with pneumo-electric separators

Feldspar
ores

Separation of feldspars, as well as partial separation of albite from microcline
in order to increase the ratio of potassium and sodium in feldspar
concentrate

Pneumo-electric
separator

Perlite

Particle
size classification

Electrostatic
corona separator

Magnesite
ores

Enrichment
of contaminated magnesites in order to separate magnesite from silicates

Pneumo-electric
separator

Sillimanite
ores

Enrichment
of sillimanite shales for the separation of sillimanite from quartz and
biotite

Pneumo-electric
separator

Kyanite ore

Enrichment
of washed kyanite-containing rock for the separation of kyanite from quartz,
muscovite and chlorite

Pneumo-electric
separator

Brucite
ores

Enrichment
of brucite limestones for the separation of brucite from calcite

Pneumo-electric
separator

Gypsum ores

Gypsum
enrichment for the separation of gypsum from silicates

Pneumo-electric
separator

Gypsum
enrichment for the separation of gypsum from quartz and silicates

Pneumo-electric
separator

Non-ferrous metal ores

Polymetallic
ores of copper, lead, zinc and other metals

Aftertreatment
of industrial products (flotation, gravity preparation, etc.) of complex ores

Electrostatic
corona separator

Titanomagnetite
ores

Aftertreatment
of gravitational enrichment products for the separation of titanomagnetite
from pyroxenes and apatite in order to obtain titanium concentrates with low
silica and phosphorus content

Electrostatic
corona separator

Titanium
and zirconium ores

Aftertreatment
of industrial products (flotation, gravity preparation, etc.)
for the separation of rutile,
ilmenite, leucoxene from zircon, monazite, staurolite, tourmaline, sillimanite,
garnet and quartz

Electrostatic
corona separator

Niobium and
tantalum ores

Aftertreatment of primary collective niobium and tantalum gravity
concentrates

Electrostatic
corona separator

 Columbite and tantalum ores

Aftertreatment of tantalite-columbite
concentrates for the separation of tantalite and columbite from monazite,
ilmenite from andradite, and cassiterite from zircon

Electrostatic
corona separator

Wolframite and
cassiterite ores

Aftertreatment of collective
wolframite-cassiterite concentrates for the extraction of magnetite,
ilmenite, wolframite, monazite, followed by recrushing of the nonmagnetic
fraction (cassiterite, etc.) and its electric separation. One company, which
applies electrical separation, uses the aftertreatment of wolframite-cassiterite-sulphide
concentrate with the predominance of arsenic compounds for the separation of cassiterite
from quartz.

Electrostatic
corona Electrostatic corona separator separator

Ores
containing precious metals (gold, silver, platinum, palladium)

Extraction
of precious metals from mineral raw materials (primary and alluvial
deposits), enrichment of preliminary, contaminated concentrates, tailings,
washings, etc.

Electrostatic
corona separator

Ferrous metal ores

Manganese
ores

Aftertreatment
of gravity and magnetic concentrates for the separation of oxide and hydroxide
manganese minerals from manganese carbonates and waste minerals

Electrostatic
corona separator

Metallic
powders (iron etc.)

Close particle
size classification and classification by shape and bulk weight

Electrostatic
corona separator

Metallic
powders (granules for powder metallurgy)

Removal of
ceramic impurities

Electrostatic
corona separator

Technological,
metallurgical and other wastes

Metallurgical slags, cakes, flotation tailings,
etc.

Separation of useful components from impurities.


Abrasive
materials, foundry molding sand mixtures, quartz sand, ceramics, etc.

Removal of impurities.

Scrap of electronic equipment

Separation of useful components from impurities.

Cable scrap and waste

Separation
of metal from the shell. Production of metal concentrate.