Use of Cenosphere in Various Industries

A Cenosphere is a type of hollow microscopic ball that is made up of smooth silica and aluminum and other minor ceramic elements. A Cenosphere is also known as Ceramic sphere. Cenospheres are derived in the coal power plants. It has been used for more than 30 years over the world. It has helped us in improving the qualities of many manufactured products in India. When the coal is burnt in thermal power plants, it produces a fly ash that contains ceramic particles that is made largely of alumina and silica. The particles that are produced in the process of coal burning, produces a part of fly ash. In India, Cenospheres are largely made up of silica, iron and alumina. The size of a Cenosphere ranges from 1 to 500 microns that have an average compressive strength of 3000+ psi. Cenospheres are widely used in a variety of products as fillers in low density concrete. Cenospheres are used in plastic and composite materials that are used for producing bowling balls, surfboards, kayaks, in fire bricks, in floor tiles, in insulating materials and in automotive components. Cenosphere are described as the multifunctional filler that mixes well in binders and resins.

Most of the Cenospheres are scooped up or take out from ash ponds. Ash ponds are the place where the fly ash is carried out when the wet disposal takes place in the thermal power plants. Some of the Cenospheres gets collected by themselves at the thermal power plants. The wet microspheres that are collected in the ash ponds are then dried up then processed to specifications and then it is packed up to meet customer requirements. All the Cenospheres that we see are not similar in nature. In fact, all of them are quite different from each other. The property of Cenospheres depends on the consistency of the coal used and it also depends on the operating parameters of the thermal power plant. If the manufacturer makes two things constant, that is, the consistency of the coal used and the operating parameters of the thermal power plants, then the Cenosphere processed would be quite constant.

Top Cenosphere Exporters in India

The word Cenosphere has been taken from two Greek words, that is, Kens (empty) and Sphaera (circle). Cenospheres are hollow circle which is light weighted. It is mostly a part of alumina and silica. They are microspheres which are a result of byproduct of coal combustion in the thermal power plants. When the coal is burnt in the thermal power plants, it produces a fly ash and that is what we refer to as Cenospheres. The fly ash is then weighted down with air or torpid gas. These are then utilized as fillers in the assembling of paints, in plastics lightweight totals for bond, gums; pottery and other organized items. The size and color of the Cenospheres are not at all similar. The chemical composition and structure of the Cenosphere depends largely on the composition of the coal that is generated by them. The thickness of Cenosphere is around 0.4 to 0.8 g/cm3, this property offers them with an amazing daintiness. In India, Cenospheres are further used as fillers as a piece of bond to use it in a low thickness concrete cements. Later on, the manufacturers of Cenospheres have begin filling metals and polymers with Cenospheres so that it can be used in light weighted composite materials with higher quality than variety of foam materials. You can contact Cenospheres exporters in India.


There are various applications of Cenospheres. Some of them are listed below:

  • Oil well and geo warm establishing
  • Warm protection paints
  • Light weight concrete
  • Spaces make protection
  • Preparing of electrical transformers and curls

Cenospheres are empty and void circle which is light in weight and inactive. It is made up of the maximum part of alumina and silica. These are empty ceramic microspheres that are fly ashes and it is a result of coal combustion. With the help of electric force, the fly ashes of Cenospheres are weighted down with air or torpid gas. It makes most of the fillers as useful in assembling of paints, plastics, lightweight totals for bond, gums; pottery and other organized items.

Are you Searching a Reliable Cenosphere Supplier in India

Cenospheres is one kind of light weight material with more function for petroleum field. Its main compositions include SiO2 and Al2O3, and whose color is light gray or white. Extracted from pulverized fuel ash from coal-fired power stations hollow alumina-silicate Cenospheres or microspheres are versatile lightweight filler with applications in a variety of industrial and commercial products.


Cenospheres In India are filler used to replace minerals and resins where the benefits may be as diverse as weight reduction, improved thermal insulation, reduced shrinkage, improved fire resistance or simply easier application.

 Cenospheres range from 5-500 microns. A variety of standard grades is available with very accurate particle size top cuts and distribution ranges. Cenospheres in India are widely used in oil drilling cementing.

Various high value added products developed using Cenosphere as raw materials are found to be economically viable as discussed here.

The use of carbon derived from Cenosphere as an adsorbent for waste water treatment and its use as filler for rubber industry has been established.

The use of Cenosphere for the manufacture of high wear resistant tiles appears to be viable as a substitute for high alumina ceramics for various abrasion and wear resistant applications.

The use of Cenosphere in India alloys is about to be a commercial reality following its success on the pilot scale. The characterization of mechanical and tribological properties of ash alloys developed show that if possesses superior abrasion resistance, hardness, compressive proof strength, and elastic modulus compared to matrix aluminum alloys without any ash.

Coal ash mineral wool is produced abroad based on well-developed reliable technology. The quality of coal ash wool manufactured is comparable to the properties of conventional mineral wool at much lower prices.

A Cenosphere composite wood substitute developed in India using 25-35% Cenosphere is considered to be low cost and better alternative to ordinary wood. It has advantages over cellulose products, plywood and fiber board for all domestic and household applications.

Floater based light refractory materials developed are found to save 50% more energy compared to traditional refractory in furnace linings.

Products like ceramic fibers, foam insulation products, continuous casting mold powders, decorative glass are other potential technologies are under development. The full viability implications of the can be assessed after they are tried on pilot scale level.

Cenospheres are now being successfully used as fillers in plastic like nylon and polypropylene. Size classified coal ash can successfully substitute various other fillers like aluminum hydrate, calcium carbonate, kaolin, mica, and tale and ground silica. Their applications have been well established in wall board, joint compounds, carpet backings, vinyl flooring, plastics and industrial coatings, etc.

Refuse fire abatement using Cenosphere injections has proved to be a safe and effective technique. Control of the process using temperature criteria has been shown to be reliable. On projects where steep slopes are burning or access to the burning area is difficult, Cenosphere injection has been the most economical and at times the only effective method of fire abatement.