Print ISSN: 1681-6900

Online ISSN: 2412-0758

Keywords : dissolution


Phosphate Rock Treatment with Hydrochloric Acid for Increasing P2O5 Content

Adel Sharif Hamadi; Shurooq Talib Remedhan; Haider Abd Ali

Engineering and Technology Journal, 2012, Volume 30, Issue 1, Pages 67-76

The present paper deals with the treatment of phosphate obtained from a commercial
sample of Akashat phosphate ore in hydrochloric acid. The factors studied are effects
of the temperature of dissolution, acid concentration, and the time required for mixing
phases. The experiments were performed with 100 kg/m3 of solid/liquid ratio, the size
of the particles ranged 125-140 μm, the initial acid concentrations were 20, 30 and 40
wt% HCl, and the temperature of dissolution was kept constant at 30, 40, 50, 60 and 70
oC. The results indicated that the percentage of P2O5 increases as the HCl concentration
increased using different time and temperatures. Also, the results showed that the best
conditions for P2O5 recovery process according were acid concentration 40%, reaction
time of 90 min, and temperature 30 oC.