Production of silica sand:
High-grade silica sand is usually found as unconsolidated deposits below thin layers of soil and overburden.
After quarrying, the sand often undergoes considerable processing before sale.
The processing may include washing and cleaning of the grains, sizing to remove coarse in very fine fractions,
and physical and chemical processes to remove iron, chromium and other deleterious minerals. After
processing, the sand may be dried and some applications require it to be ground in ball mills to produce very
Uses of Silica Sand:
Silica is the major ingredient in virtually all types of glass. The principal glass products include containers
(bottles and jars), flat glass (windows, mirrors, vehicle glazing etc.), lighting glass (light bulbs, fluorescent
tubes, etc.), tableware (lead crystal, drinking glasses etc.), TV tubes and screens, decorative glass, fiberglass,
optical glass and vacuum flasks.
2. Foundry casting
Silica has a high melting point, 1610 degrees C. This enables castings to be produced by pouring molten metal
into molds made out of silica sand.
Silica that has been ground to fine size is an ingredient of most clay bodies and is a major constituent of
ceramic glazes. Typical everyday products include tableware, sanitary ware, ornaments and wall and floor
Closely sized grades of silica sand is the principal filtration medium used by the water industry to extract
solids from wastewater.
5. Specialist building applications
The construction industry is founded on silica and there are a host of specialist applications including silica
and aerated concrete blocks, floor and roof tiles, flooring and rendering compounds, white line markings,
roofing felt and cement and resin injection systems.
6. Sports and leisure
Silica sand is used for equestrian surfaces, in artificial turf, golf course root zones and dressings, football and
cricket and other pitches and as play sands.
7. Other users
Silica has many other applications including the manufacture of chemicals and metals, fillers in numerous
products, plastic and otherwise, the manufacture of refractories, stimulating oil production and as additives in
agricultural and horticultural products. It is difficult to imagine a life without silica!
Silica sand is one of the most common varieties of sand found in all over the world. Sand is the general term
for broken down granules of minerals or rocks, technically between about one-sixteenth of a millimeter to two
millimeters in diameter. There are many varieties of sand in the world, each with their own unique
composition and qualities. Silica sand is silicon dioxide containing SiO2.
At PMA, we manufacture different types of Silica sand grades which are available in powder, granules cum
powder form. These grades are used for different applications.
Applications: Glass Making, Foundry Casting, Ceramics, Water Filtration, Construction, Chemical, Adhesive,
Refractory, Abrasive, Sandblasting, White Cement, Fiberglass etc.