Advantage of using Hi-grade Hydrated Lime having higher
percentage of Calcium Hydroxide (+90%) over low grade (65% Purity)Hydrated Lime :
1) REDUCED REACTION TIME : The rate of chemical reaction depends upon the
degree of purity of the Chemical being used. Higher the purity , lesser would be the
reaction time .
2) REDUCED CONSUMPTION : By Quantitative Analysis it is established
that 1 M.T. of 90% grade Hydrated Lime is equivalent to 1.378 M.T. of 65% purity Grade .
Thus there is a reduction of 37.8% in consumption.
3 ) REDUCED HANDLING COST ETC : By using this high purity material , handling
charges inclusive manpower can be reduced by 37% due to reduction in consumption . This is
a direct saving in labour cost by the same proportion.
4) REDUCED TRANSPORTATION COST: Total transportation cost for carrying Low
Grade (65% Purity) Hydrated Lime = Cost of Carrying 65% Pure material + Cost of Carrying
35% impure material.
Total transportation Cost for carrying High Grade (90% Purity) Hydrated Lime = Cost of
carrying 90 % Pure material +Cost of carrying 10% impure material.
Thus it's clear that with same transportation Cost 25% more pure material / utilizable
material can be transported .
5 ) LESS STORAGE SPACE : As there will be reduction in consumption ,less
Godown space would be required for storage purpose , there by, reducing storage problem
& Inventory cost.
6 ) MINIMIZED DISPOSAL PROBLEM : Due to less consumption less
sludge would be generated, resulting in reduced disposal cost.
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