What Is The Process Of Calcium Carbonate Beneficiation?

Calcium carbonate is an extensively used chemical compound containing three elements – calcium, oxygen, and carbon. Fine particles of calcium carbonate are used in various industries, including mechanical, plastic, construction, and others.

calcium carbonate Beneficiation
calcium carbonate Beneficiation


It is usually mined as marble or limestone based on its chemical impurities, physical structure, application, and size distribution. But producing high-quality calcium carbonate is challenging as it includes numerous gangue minerals. Hence, industries are always looking for the best ways to calcium carbonate beneficiation.

This compound is beneficiated for use in distinct applications, including paper, plastics, paint, food industries, paint, and pharmaceutical. It is also used in caulks, flooring materials, latex carpet substances, roofing materials, and joints. It is important for the construction industry as a raw and building material. 

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The decomposed form of this substance is used as a material for making paper, steel, and glass. Also, it contains antacid properties, which makes it suitable for use in different industrial settings to neutralize the acidic conditions in water and soil.

The beneficiation of Calcium Carbonate is done in wet and dry ways. Let's have a look at the common ways of calcium carbonate beneficiation.

The Floatation Process

The floatation process is used for removing mineral contaminants from calcium carbonate. It contains various contaminants like magnesium, silica/ silicates, and iron. 

The substance passes through commercial-grade cationic flocculants and collections developed for a specific purpose. Such equipment is custom-formulated to meet the unique requirements of plants.

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The technical experts work closely to create a custom floating reagent and flowsheet design to beneficiate calcium carbonate. However, this may not be the best technique for beneficiation as it does not result in the production of extremely fine particles. Hence, manufacturers prefer the dry method of beneficiation.

Dry Beneficiation of Calcium Carbonate

The dry beneficiation process is suitable for removing the acidic insoluble contaminants and quartz from finely processed calcium carbonate. The process offers a high-quality product useful for various applications. 

AI or Acid insoluble testing is a basic technique to measure the volume of unwanted contaminants in this substance. Calcium carbonate contains silicates like talc, mica, and quartz that are separated using robust tribo-electrostatic equipment. 

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The Tribo-electrostatic technology effectively removes trace volumes of dark contaminants like metal sulfides and graphite. It also led to the improvement in product brightness for many sources of the substance. As a result, manufacturers gain premium quality fine particles of calcium carbonate that hold extended life and enhanced recovery from rock deposits.

Practice Dry Beneficiation of Calcium Carbonate with Tribo-Electrostatic Separator for Best Results

The triboelectric separation used high electric field strength with a minimum applied voltage to produce rich results. Calcium carbonate passes through various stages of separation through charging and the internal cycle. If you want finely ground particles of this substance suitable for various applications, consider using Steqtech's tribo-electrostatic separator. The separator can produce fine particles of less than 500 microns. Contact us to learn more about our separator equipment for the best results. 

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