TYPES OF ELECTRICAL SEPARATION

TYPES OF ELECTRICAL SEPARATION

 

There are 6 types of electrical separation of minerals:

• Electrical separation
• Electrostatic separation
• Dielectric separation
• Tribo-electrostatic separation
• Tribo adhesive separation
• Separation in the corona–discharge field

Rare types of electrical separation of minerals:

• Electrical classification by size and shape
• Pyroelectric separation
• Tribo-aero-electrostatic separation
• Pneumoelectric separation
• Fluidising-electrostatic separation
• Crown-magnetic separation
• Opto-electrical separation

Electrical separation is used frequently with magnetic separation and gravity separation. Flotation can be used for eliminate silycates out of the iron concentrate.

Next effects exist in nature:

• Thermoelectric effect
• Pyroelectric effect
• Photoconductivity
• Photo-electromotive-force effect (EMF)
• Photoluminescence
• Piezoelectric effect
• Triboelectric effect
• Triboluminescence

TYPES OF ELECTROSTATIC SEPARATORS

• Electrostatic separators
• Corona-electrostatic separators
• Tribo-electrostatic separators
• Tribo adhesive separators (TAS)
• Dielectric separators
• Electrostatic classifiers

HOW TO CHOOSE A METHOD FOR THE SEPARATION OF MINERALS

Ph.D. Natalia Petrovskaya, February 3, 2016