Monitoring of Anti-Caking Solution Preparation and Loading during Loadout Treatment of Potash Using FT-NIR

Mohammad Hussein, Adam Donaldson
2017 Journal of Chemical Engineering & Process Technology  
Fourier transform near-infrared spectroscopy is presented as a novel method for monitoring anti-caking reagent preparation and loading ratio on granular potash samples during loadout. Using commercial anti-caking agents and granular samples obtained from an operational loadout facility, amine weight percent in the anti-caking solution was determined between 0 and 7 wt% to an accuracy of ± 0.1 wt%, while the loading ratio was determined between 0 and 4.3 lb/ton to within an accuracy of 0.1 to
more » ... lb/ton, depending on the sample heterogeneity. These errors are comparable to current analysis techniques, with minimal sample preparation and an analysis time of seconds. FT-NIR is thus presented as a novel monitoring method for these applications within the potash processing industry Figure 1: The entire spectra of the solution for various amine weight content. Figure 2: 2 nd derivative (top), 1 st derivative (middle) and raw spectra (bottom) observed in the second second overtone region of the anti-caking agent solution. Figure 3: Calibration plot for Armeen T with temperature effect included. Figure 4: Residual error plot of actual vs. predicted for the 1 st derivative analysis of the 2 nd and 3 rd overtones. Figure 5: Absorbance spectra of the CH and CH 2 functional groups observed for the raw granular samples. Figure 6: Equivalency plot of homogeneous and heterogeneous powder samples for variable loading ratios (lb/ton).
doi:10.4172/2157-7048.1000342 fatcat:rtne3sh4lje2bnlb3lckn7jfcq