J. O. Okafor

Effects of Process Variables and a Comparative Study of Methods for Transfer Oil Production from Spent Engine Oil

I. J. Ani, J. O. Okafor, M. A. Olutoye & U. G. Akpan · Current Journal of Applied Science and Technology · 2015

The influence of process variables on the production of transfer oil from spent engine oil (SEO) is presented in this paper. Various methods for SEO treatment are also highlighted. Process parameters like solvent type, solvent to oil ratio, extraction temperature, adsorbent to oi...

Open access Research Article 10.9734/BJAST/2015/17578

Optimization of Base Oil Regeneration from Spent Engine Oil via Solvent Extraction

I. J. Ani, J. O. Okafor, M. A. Olutoye & U. G. Akpan · Advances in Research · 2015

Regeneration of base oil from spent engine oil (SEO) has been studied and the parameters involved were optimized using Response Surface Methodology. A mathematical model was obtained for the dependent variables, base oil yield (Y1) and ash content (Y2) while effects of solvent to...

Open access Research Article 10.9734/AIR/2015/16795

Comparative Study of Removal of Cadmium Ions from Aqueous Solution Using Dialium indum and Santalum album Fruitshells as Adsorbents

N. A. Jibrin, J. Yisa, J. O. Okafor & A. Mann · Chemical Science International Journal · 2015

Sandal and velvet tamarind fruit shells were screened for their metal uptake capacities for Cd(II)ions, at various initial concentrations of 10, 20, 30 40 and 50 mg/ L at variable contact period of between 30 and 180 minutes and different adsorbent dosages of 0.2 – 1 g/l, pH(1 to...

Open access Research Article 10.9734/ACSJ/2016/21587