Cenosphere/Microsphere

Cenosphere is a lightweight, hollow sphere made largely of silica and alumina and filled with air or inert gas, typically produced as a coal combustion byproduct at thermal power plants. The color of cenospheres varies from gray to almost white and their density is about 0.4–0.8 g/cm3 (0.014–0.029 lb/cu in), which gives them a great buoyancy.

Cenospheres are hard and rigid, light, waterproof, innoxious, and insulative. This makes them highly useful in a variety of products, notably fillers.

Cenospheres are now used as fillers in cement to produce low-density concrete. Some manufacturers have begun filling metals and polymers with cenospheres to make lightweight composite materials with higher strength than other types of foam materials. Such composite materials are called syntactic foam. Aluminum-based syntactic foams are finding applications in the automotive sector. Cenospheres are used in conductive coatings, tiles and fabrics. Another use is in conductive paints for antistatic coatings and electromagnetic shielding.

Cenospheres Production

The process of burning coal in thermal power plants produces fly ash containing ceramic particles made largely of alumina and silica. They are produced at temperatures of 1,500 to 1,750 °C (2,730 to 3,180 °F) through complicated chemical and physical transformation. Their chemical composition and structure varies considerably depending on the composition of coal that generated them.

The ceramic particles in fly ash have three types of structures. The first type of particles are solid and are called precipitator. The second type of particles are hollow and are called cenospheres. The third type of particles are called plerospheres, which are hollow particles of large diameter filled with smaller size precipitator and cenospheres.

Chemical Analysis

Cenospheres Benefits

The spherical shape of Cenospheres improves flowability in most applications and provides a more even distribution of the filler material.

This cenosphere is highly used in oil drilling, paints, fillers industries etc. Our products are used in oil field cementing to decrease the slurry density.Like sphered products, the properties of these are same. Therefore, to 3,180 °F) through complicated chemical and physical transformation. Their chemical composition and structure varies considerably depending on the composition of coal that generated them.

The ceramic particles in fly ash have three types of structures. The first type of particles are solid and are called precipitator. The second type of particles are hollow and are called cenospheres. The third type of particles are called plerospheres

Packing: 25kg, 500kg, 550kg or 600kg bags.

Quantity: 10-12Mt/20'GP, 22-24Mt/40'HQ

Characteristics: Fine particles, hollow, light weight, high strength, wear resistance, high temperature resistance, thermal insulation.

Application: Refractory insulation materials, Lightweight castable materials, High-grade paving materials, Oil drilling industry, High temperature and high voltage insulators, Surface composite materials, Plastic additive, Powder metallurgy etc.