Lime and lime-based products

Lime and lime-based products are used in a wide variety of traditional and emerging applications because of their chemical and physical properties. Calcined Lime or Quicklime (or Calcium Oxide or Burnt Lime) is obtained by calcining (controlled heating - time and temperature) limestone at temperatures above 900°C. This highly reactive product is essential in many industrial processes.

We are one of the leading manufacturers & suppliers of high-grade calcined lime (burnt lime / quicklime) which is manufactured from 'gas fired vertical shaft lime kiln' to enable higher and sustained quality of calcined lime for specific uses. This new technology of calcined lime produces a high-grade product, which is devoid of any external impurities (such as carbon, silica, sulphur, etc.) added in case of mix-fuel domestic kilns, where limestone is burnt with coal.

The project is set up near village Khimsar, District Nagaur, Rajasthan on NH 65.

Chemical formula: CaO

Process

The production of high calcium quicklime (calcium oxide) requires a large amount of heat, which is generated in the kiln environment. The quarried and sized high calcium limestone travels through a vertical shaft lime kiln and is subjected to these high temperatures where the calcium carbonate begins to dissociate with the resultant formation of calcium oxide. The minimum temperature for the dissociation of calcium carbonate is 1648°F (898°C). For practical production purposes, however, the kiln temperature range is from an initial temperatures of about 1750°F (954°C) to a final temperature of about 1950°F (1066°C). These temperatures can vary dependent upon the nature of the limestone being calcined.
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Lime Kiln


"High Calcium" Limestone Calcination:

CaCO3 + Heat ---> CaO + CO2
1750°F to 1950°F
954°C to 1066°C

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Specifications

CaO :: 95%
SiO2 :: 0.50%
MgO :: 1.00%
LOI :: 2.00%

Sizes

Powder 250 Mesh
10 to 30 MM
30 to 60 MM
40 to 80 MM