Silica Sand is also known as quartz sand. The main component of silica sand is the mineral name silica. Silica is mainly found in crystalline form. It is made of one atom of silicon and two atoms of oxygen. Silica sand needs to be process after being mined out in order to be useful for a plethora of industries.

Silica Sand Suppliers India caters to a large number of industries such as the steel industry, glass industry, ceramics industry, rubber industry, construction sector, paper industry, chemical industry, electronics industry, water treatment plants, aerospace industry, and many more.

Types of silica sand supplied

There are multiple types of silica sand provided by Silica Sand Suppliers India to suit various applications. Let’s have a look at the common types of silica sand widely supplied to many industries.

  1. Natural: Natural silica sand is white or translucent colourless. Hardness is 7 on the hardness scale and the density is 2. This type of silica sand is brittle without cleavage. Natural silica sand is use in casting, glass manufacturing, smelting ferrosilicon, and in ceramics and refractory materials.
  2. Ordinary: The Silica or SiO2 content in ordinary silica sand ranges between 90% and 99%. The Ferric Oxide or Fe2O3 content is less than or equal to 0.06-0.02%. The particle size ranges between 5 to 220 mesh. The particles have a yellowish appearance. Ordinary silica sand is use in water treatment plants, enamel, glass, cast steel, silicon carbide, metallurgy, and more.
  3. Refined: The SiO2 in refined silica sand ranges between 99% and 99.5%. The Fe2O3 content is less than or equal to 0.005%. The particle size ranges between 2 to 2500 mesh. Refined silica sand is obtain from high-quality quartz ore by a process call acid pickling which removes iron and aluminum from the surface of the ore. Refined silica sand is use in high precision casting, smelting stones, manufacturing glass products, and many more.
  4. High Purity: High Purity silica sand is obtained by purifying quartz ore to eliminate a host of impurities such as mica, alumina, iron, and more. The silica content is 99.5% to 99.9% while the iron oxide content is less than or equal to 0.001%. The particles are milky white in colour. High-purity silica sand is use for making acid-resistant concrete and mortar, ferrosilicon smelting, grinding materials, glass manufacturing, and more.
  5. Fused: Fused silica sand is produce by vapor phase hydrolysis of a silicon halide. It is much purer as compared to other types of silica sand and has high thermal stability and low thermal conductivity. It also exhibits high chemical stability. Fused silica sand is use to make electronic seals, epoxy resins, ceramics, and glass.

The processing method of silica sand

Raw silica sand has a number of impurities such as kaolin clay, sticky clay, magnetic materials, and minerals. To this end, Silica Sand Suppliers India needs to process the raw silica sand before packaging and selling. The common process for purifying raw silica sand is as follows.

  • Silica sand feeding is the first stage. To this end, a feeding machine is use which can be a feeding hopper, vibration feeding machine, belt feeder, electromagnetic vibration feeder, or wheel loader. In this process, the coarse impurities are remove and the smaller particles fall through to the next stage
  • In the second stage, kaolin clay, sticky clay, and mud are remove from the silica sand. There are many types of machines to carry it out. These include an attrition scrubber, log washer, spiral washer, and trommel scrubber. This process enhances the quality of the silica sand
  • The gravity separation method is use to remove heavy mineral impurities such as haematite, limonite, iron, tourmaline, and others from the silica sand. A spiral chute separator is use for this process in large capacity plants while small capacity plants usually use a shaking table machine
  • Magnetic separation is use to remove the still remaining minerals in the silica sand. The purpose is to bring the mineral content to the percentage require in accordance with the type of silica sand being produce. Different magnetic separators are use to remove various types of minerals. 1000 Gauss magnetic separator is require to remove iron while limonite and haematite require 8000-9000 Gauss magnetic separator
  • After the removal of the minerals, silica sand is sieved out to get the require particle size. A high-frequency precision vibration screen is use to customize the size of the particles.
  • The final process is drying the silica sand. A drying machine is use for this purpose

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Major industries for silica sand

Silica Sand Suppliers India and Bentonite Suppliers India provide silica sand to a number of industries. Some of the major industries are as follows.

  • The glass industry is a major consumer of silica sand is a major raw material for glass manufacturing. The strength, colour, and clarity of glass products depend upon their silica content
  • The ceramic industry is a major buyer of silica sand because silica sand is use for manufacturing all kinds of ceramic products such as tiles, tableware, and more
  • The paints and coatings industry uses silica sand to improve dust resistance and durability of paints and coatings

Conclusion

India dominates the Silica Sand market in the Asia Pacific region. In the coming years, silica sand suppliers in India are expect to grow exponentially due to rapid growth in many industries utilizing silica sand.

 

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