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Quicklime (or calcium oxide, or burnt lime) is obtained by calcining pure limestone at temperatures above 900°C. This highly reactive product is essential to many industrial processes.

"Quick Lime " Limestone Calcination:
CaO

Available products:
Pebble, Ground, Milled, Fluidised lime, Low-dust lime, etc.

 

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 rotary 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 1648oF (898oC). For practical production purposes, however, the kiln temperature range is from an initial temperture of about 1750oF (954oC) to a final temperature of about 1950oF (1066oC). These temperatures can vary dependent upon the nature of the limestone being calcined.

"High Calcium" Limestone Calcination:
CaCO3 + Heat ---> CaO + CO2
1750o to 1950oF 954o to 1066oC

Hand picked Quick Lime Manufactured from best quality & selected Lime Stone. The product is available in lumps as well as powder form.

 

 

 

Technical Specification :

Our products are available under the following technical specification in which we can make available a different percentage of parameters than the one mentioned below according to the needs of customers.

Calcium Oxide / Burnt / Calcined / Unslaked Lime
Physical Shape - Lumps Lumps Lumps Lumps Powder Powder
Calcium Oxide CaO 92 80 85 92 80 85
Calcium Carbonate CaCO3 2 4 6 2 4 6
Magnesium Oxide MgO 0.4 0.4 0.4 0.4 0.4 0.4
Acid Insoluble SiO2 1.5 1.8 2 1.8 1.5 2
Alumina Al2O3 Trace Trace Trace Trace Trace Trace
Iron Fe2O3 Trace Trace Trace Trace Trace Trace
Chloride cl Nil Nil Nil Nil Nil Nil
Size/Mesh (BSS) - 2-4" 2-4" 2-4" 500 300 200
Calcium Carbonate CaCO3 96.5 95
Magnesium Oxide MgO 0.6 0.6
Acid Insoluble SiO2 1.0 1.06
Alumina Al2O3 0.1 0.12
Acid Iron Fe2O3 0.014 0.016
loffon Ignition - 43.9 43.5

 

 

 

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