Journal of Pharmaceutical Chemistry & Chemical Science

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Journal of Pharmaceutical Chemistry & Chemical Science 44 7897 074717

Open Access Articles For New Chemical Entities

Liquid-liquid solvent extraction technology is employed in several industrial processes like petrochemical processing, pharmaceutical production, food and hydrometallurgy. it's successfully applied for the purification of Wet Phosphoric Acid (WPA) with fairly good purification performances. The purification process is essentially administered in three steps: extraction, washing and recovery, each of those steps may be a liquid-liquid extraction operation. The aim was to develop a code that helps predicting the general performance of the purification process for a given
set of operating conditions. The adopted approach is predicated on determining the required theoretical stages for every step within the purification process employing a numerical technique. Some simulation results for the WPA purification process
with Tri-Butyl Phosphate (TBP) at 45°C, Methyl Isobutyl Ketone (MIBK) at 25°C and a mix (MIBK+TBP) at 30°C
are presented.

 

The most commonly used process for the assembly of phosphoric acid is: thermal and wet-process. The thermal process produces a pure acid with huge energy consumption. The wet-process involves reaction of phosphate rock with an acid (mainly sulfuric acid). This process is
economic and practiced everywhere within the world . Phosphoric acid produced by the latter process contains a spread of impurities, which vary consistent with the origin of the minerals. These impurities are faraway from the acid by several techniques like precipitation,
adsorption, natural process and solvent extraction .

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