|
Introduction
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.
|
Lime Kiln |
